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Struts Checkbox radio怎么�q�行动态的选择

qiyadeng — Wed, 14 Dec 2005 02:19:00 GMT

使用Struts的朋友，可能�l�常发现使用��面的一些标�{��时候觉得不够得�?j��)应手。比如我们要设计一个用户修改得信息的界面，需要调��Z��些用��L(f��ng)��信息。不�q�的是，当页面中含有Checkbox或是radio的时候有没有惌��怎么处理�Q�以前我也�ؓ(f��)�q�个苦恼�Q�不��论坛上的�h也发帖子问这个问题。最�q�看��C��(ji��n)两篇文章�Q�可以解册��个问题。来自IBM developer:
http://www-128.ibm.com/developerworks/java/library/j-sr3.html
http://www-128.ibm.com/developerworks/java/library/j-sr4.html

先调��单的说�v吧，我们来实现动态的checkbox:
1、Form的设计：(x��)我们�q�个例子有个String[] mountains�Q�这个变量数�l�中包含很多的山的名�?�q�有个数�l�String[] selectedMountains��是默认选中的一些山�Q�像下面�q�样很简单�?/P>

public class MultiboxForm extends ActionForm {
 
 private String[] selectedMountains = {"Everest","K2","Lhotse","Cho Oyu"};
 private String[] mountains ={"Everest","K2","Kangchenjunga","Lhotse","Makalu","Kangchenjunga South","Lhotse Middle","Kangchenjunga West","Lhotse Shar","Cho Oyu"};
 public String[] getMountains() {
  return mountains;
 }
 public void setMountains(String[] mountains) {
  this.mountains = mountains;
 }
 public String[] getSelectedMountains() {
  return selectedMountains;
 }
 public void setSelectedMountains(String[] selectedMountains) {
  this.selectedMountains = selectedMountains;
 }

2、Action的设计：(x��)�q�个��更��单了(ji��n)�Q�一句话�Q�由控制器切换到视图�?PRE class=code>
return mapping.findForward("success");
3、JSP的设计：(x��)

�q�个相对比较复杂�Q�也是比较中要的�?lt;logic:iterate/>是�P代MultiboxForm中的mountians,

�q�个标签的作用就是selecteDMountains的值和�q�代的mountain��g��致的时候就�?x��)选中�?

接下来说Radio�Q�其实Form和Action部分都差不多�Q�只是JSP��面有点不一��P��Radio里面甚至牉|��C��(ji��n)JavaScript�?BR>1.From的设计：(x��)


 private String selectedMountain = "Kangchenjunga West";
 private String[] mountains ={"Everest","K2","Kangchenjunga","Lhotse","Makalu","Kangchenjunga South","Lhotse Middle","Kangchenjunga West","Lhotse Shar","Cho Oyu"};
 
 public String[] getMountains() {
  return mountains;
 }
 public void setMountains(String[] mountains) {
  this.mountains = mountains;
 }
 public String getSelectedMountain() {
  return selectedMountain;
 }
 public void setSelectedMountain(String selectedMountain) {
  this.selectedMountain = selectedMountain;
 }

2.Action同上一��P��切换到JSP��面厅R�?nbsp;
3.重点部分JSP:

""定义�?ji��n)一个PageContext作用域的属性selectedRadio�Q�下面的JavaScript的作用就是根据这个属性找到应该选中的Radio。其他的地方和上面那个很�怼�的。如果还是不太理解先�q�行�Q�看看生成的HTML代码�?BR>

qiyadeng 2005-12-14 10:19 发表评论

tab tag 与Struts整合

qiyadeng — Wed, 07 Dec 2005 04:45:00 GMT

发现一个比较酷的Tab标签�Q�这个标�{�־��，但是基本上能适用于一般的应用。它的全�U�是The Ditchnet JSP Tabs Taglib �Q�）(j��)http://209.61.157.8:8080/taglibs/�Q�可以看出是JSP的标�{�。但是我们现在很多项目都是基于Struts�Q�所以需要简单的来个整合�?BR>
在它的网站上有比较详�l�的安装说明�Q��ƈ且配有实例。需要的读者可以仔�l�查看，�q�里��׃��介绍�?ji��n)�?BR>在��用的JSP��面中加�?pre class="code">



�q�是导入一些CSS和JavaScript.
然后基本上就是两套标�{�：(x��)

从命名我们就很容易看出来是什么作�?lt;tab:tabContainer>是相当于容器一��L(f��ng)��东西可以包含很多�?lt;tab:tabPane>,�?lt;tab:tabPane>��是我们要的那种Tab的效果的面板�?pre class="code">
























注意上面的两个标�{�N��有id�q�要是唯一的，而且是整个应用唯一�?BR>
上面的代码就是一个表单，含有userName,password,rePassword三个文本域。但是需要一个Form,有没有考虑�q�Form攑֜�什么位�|�呢�Q�经�q�试验我发现要将Form 攑ֈ�的标�{�之外。这样就像处理一个普通的Struts Form一样了(ji��n)。如果你需要每个Tab也可以是个Form�Q�这样也没有什么问题�?BR>
完整的JSP代码如下:



<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib prefix="tab" uri="
<%@ taglib prefix="html" uri="
<%@ taglib prefix="bean" uri="

效果如图�Q?BR>

qiyadeng 2005-12-07 12:45 发表评论

Struts之自定义Validator

qiyadeng — Mon, 31 Oct 2005 10:00:00 GMT

在��用Struts的时候，验证是��用Validator来做�Q�但是有时候需要有自己的验证规�?�q�运的是我们可以方便地进行扩展�?br> 比如我们惛_��义一个规则来判定两次输入的密码是相等的。我们需要这样做�Q�首先我们需要一个类�Q�象�q�样�?�Q?br>

package com.motel168.util;



import java.text.SimpleDateFormat;

import java.util.Date;



import javax.servlet.http.HttpServletRequest;



import org.apache.commons.validator.Field;

import org.apache.commons.validator.GenericValidator;

import org.apache.commons.validator.ValidatorAction;

import org.apache.commons.validator.ValidatorUtil;

import org.apache.struts.action.ActionErrors;

import org.apache.struts.validator.Resources;



public class MyValidator {

    public static boolean validateTwoFields(Object
bean,ValidatorAction va,Field field,ActionErrors
errors,HttpServletRequest request){

        

        String value = ValidatorUtil.getValueAsString(bean,field.getProperty());

        String sProperty2 = field.getVarValue("secondProperty");

        String value2 = ValidatorUtil.getValueAsString(bean,sProperty2);

        if(!GenericValidator.isBlankOrNull(value)){

            try{

                if(!value.equals(value2)){

           
       
errors.add(field.getKey(),Resources.getActionError(request,va,field));

                    return false;

                }

            }catch(Exception e){

           
   
errors.add(field.getKey(),Resources.getActionError(request,va,field));

                return false;

            }

        }

        return true;

    }

    

}

上面�q�个�c�d��是用来判断两个域是否相等�Q�很��单，但是注意�Ҏ(gu��)��名一定要是validateXXX�?br>
接下来需要扩展validator-rules.xml,�?/global>之前加入�q�么一�D?

      
             
   
 methodParams="java.lang.Object,org.apache.commons.validator.ValidatorAction,org.apache.commons.validator.Field,org.apache.struts.action.ActionErrors,javax.servlet.http.HttpServletRequest"

             
     depends="required" msg="errors.twofield">

      

      
        function validateTwoFields(form){

              var bValid = true;

              var focusField = null;

              var i = 0;

              var fields = new Array();

              oTwoFields = new twofields();

              for(x in oTwoFields){

                  var field = form[oTwoFields[x][0]];

             
    var secondField =
form[oTwoFields[x][2]("secondProperty")];

             
   
if(field.type=="text"||field.type=="textarea"||field.type=="select-one"||field.type=="radio"||field.type=="password"){

                      var value;

                      var secondValue;

             
        if(field.type=="select-one"){

             
            var si =
field.selectedIndex;

             
            value =
field.options[si].value;

             
            secondValue =
secondField.options[si].value;

                      }else{

             
           
value=field.value;

             
            secondValue =
secondField.value;

                      }

                      if(value!=secondValue){

             
            if(i==0){

             
           
    focusField = field;

                      }

             
        fields[i++]=oTwoFields[x][1];

                      bValid = flase;

                  }

              }

          }

          if(fiels.length > 0){

              focusFiled.focus();

              alert(fields.join('\n'));

              }

          return bValid;

      

      ]]>

然后使用的时候就和其他没什么两��L(f��ng)��?ji��n)�?x��)

        

            

                

           
    

                

                

                

           
       
secondProperty

           
       
newPassword2

注意�q�个地方

                

           
       
secondProperty

           
       
newPassword2

��是我们在java�c�M��d��的变量，它代表的是另外的一个域�?br> 在JSP中的使用��׃��再说明了(ji��n)�Q�大功告�?)�?br>

qiyadeng 2005-10-31 18:00 发表评论

qiyadeng — Tue, 11 Oct 2005 02:14:00 GMT

用AXIS开始WebService之设�|?BR>http://ws.apache.org/axis/java/install.html
http://www.chinaunix.net/jh/13/620370.html
1.相关文�g全部下蝲好：(x��)
主要文�g�Q?BR>axis-bin-1_2_1.zip 目前最新的http://apache.justdn.org/ws/axis/1_2_1/
依赖文�g�Q?BR>a.mail.jar 下蝲地址:http://java.sun.com/products/javamail
b.activation.jar 下蝲地址:http://java.sun.com/products/javabeans/glasgow/jaf.html
c.xerces.jar 下蝲地址:http://xml.apache.org/xerces-j/index.html 1.4.4版本
d.xmlsec-1.2.1.jar 下蝲地址:http://xml.apache.org/security/

2.相关讄��
a.把上面提到的a,b,c,d四个包拷贝到/common/lib目录�?BR>b.把axis目录下的WEB-INF/lib目录下的文�g全部拯��?lt;CATALINA_HOME>/common/lib目录�?BR>c.把JAVA_HOME/lib/tools.jar拯��?lt;CATALINA_HOME>/common/lib目录�?/P>

�q�样��应该OK�?

qiyadeng 2005-10-11 10:14 发表评论

qiyadeng — Tue, 11 Oct 2005 02:13:00 GMT

1.把驱动拷贝到%TOMCAT_HOME%/common/lib目录�?BR>2.新徏数据库表�Q��ƈ向表中添加记�?BR>

1 use test;
2 create table testdata (
3        id int not null auto_increment primary key,
4        foo varchar(25),
5        bar int);
6insert into testdata values(null, 'hello', 12345);
7

3.�?TOMCAT_HOME%/config/server.xml文�g中加入如下一�D�配�|�信�?�?lt;/Host>之前)

1
2
3<Context path="/WS4Motel" docBase="WS4Motel"
4        debug="5" reloadable="true" crossContext="true">
5
6
10
11
15
16
20
21
22
23
27
28
33
34  <Resource name="jdbc/WS4Motel" auth="Container" type="javax.sql.DataSource"
35               maxActive="100" maxIdle="30" maxWait="10000"
36               username="root" password="83072674" driverClassName="com.mysql.jdbc.Driver"
37               url="jdbc:mysql://localhost:3306/test?autoReconnect=true"/>
38
39Context>
40
41

4.写个��单程序测试下�Q?BR>

1<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
2<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
3
4<sql:query var="rs" dataSource="jdbc/TestDB">
5select id, foo, bar from testdata
6sql:query>
7
8<html>
9  <head>
10    <title>DB Testtitle>
11  head>
12  <body>
13
14  <h2>Resultsh2>
15
16<c:forEach var="row" items="${rs.rows}">
17    Foo ${row.foo}<br/>
18    Bar ${row.bar}<br/>
19c:forEach>
20
21  body>
22html>
23

qiyadeng 2005-10-11 10:13 发表评论

获取本地��L��的MAC地址

qiyadeng — Sat, 01 Oct 2005 15:24:00 GMT

前些天，有篇文章�Q�准��的说是代码攑ֈ�csdn的博客上�Q�本是学�?f��n)的一个笔讎ͼ�但是既然兛_��(j��)的�h很多�Q�于是再一�ơ把它�{贴过�?ji��n)，那个博客已经不再用�?ji��n)�?BR>

1/*
2 FileName:MACHomework.java
3 Author:��浪��子
4 Date:2004-7-5
5 E-mail:qiyadeng@hotmail.com
6 Purpose:获取本地��L��的MAC地址
7 */
8import java.io.*;
9import java.util.*;
10
11public class Main {
12    static private final int MACLength = 18;
13
14    public static void main(String args[]) {
15        System.out.print("本机的物理地址是：(x��)");
16        System.out.println(getMACAddress());
17    }
18
19    static public String getMACAddress() {
20        SysCommand syscmd = new SysCommand();
21        //�pȝ��命��o(h��)
22        String cmd = "cmd.exe /c ipconfig/all";
23        Vector result;
24        result = syscmd.execute(cmd);
25        return getCmdStr(result.toString());
26    }
27
28    static public String getCmdStr(String outstr) {
29        String find = "Physical Address. . . . . . . . . :";
30        int findIndex = outstr.indexOf(find);
31        if (findIndex == -1) {
32            return "未知错误�Q?/SPAN>";
33        } else {
34            return outstr.substring(findIndex + find.length() + 1, findIndex
35                    + find.length() + MACLength);
36        }
37    }
38}
39
40//SysCommand�c?/SPAN>
41class SysCommand {
42    Process p;
43
44    public Vector execute(String cmd) {
45        try {
46            Start(cmd);
47            Vector vResult = new Vector();
48            DataInputStream in = new DataInputStream(p.getInputStream());
49            BufferedReader myReader = new BufferedReader(new InputStreamReader(
50                    in));
51            String line;
52            do {
53                line = myReader.readLine();
54                if (line == null) {
55                    break;
56                } else {
57                    vResult.addElement(line);
58                }
59            } while (true);
60            myReader.close();
61            return vResult;
62        } catch (Exception e) {
63            return null;
64
65        }
66
67    }
68
69    public void Start(String cmd) {
70        try {
71            if (p != null) {
72                kill();
73            }
74            Runtime sys = Runtime.getRuntime();
75            p = sys.exec(cmd);
76
77        } catch (Exception e) {
78
79        }
80    }
81
82    public void kill() {
83        if (p != null) {
84            p.destroy();
85            p = null;
86        }
87    }
88
89}
90

qiyadeng 2005-10-01 23:24 发表评论

JSP中文问题

qiyadeng — Mon, 26 Sep 2005 12:55:00 GMT

一、JSP��面昄��q��二、表单提交中文时出现��q��三、数据库�q?
大家在JSP的开发过�E�中�Q�经常出��C��文�ؕ码的问题�Q�可能一臛_��扰着�(zh��n)�，我现在把我在JSP开发中遇到的中文�ؕ码的问题�?qi��ng)解军_��法写出来供大家参考�?

一、JSP��面昄��q��
下面的显�C�页�?display.jsp)��出��Cؕ码：(x��)

 
 
JSP的中文处�?lt;/title> <br/><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br/></head> <p></p><p><body> <br/><% <br/>out.print("JSP的中文处�?quot;); <br/>%> <br/></body> <br/></html> </p></pre>对不同的WEB服务器和不同的JDK版本�Q�处理结果就不一栗���原因：(x��)服务器��用的�~�码方式不同和浏览器对不同的字符昄����l�果不同而导致的。解军_��法：(x��)在JSP��面中指定编码方�?gb2312),卛_����面的第一行加上：(x��)<%@ page contentType="text/html; charset=gb2312"%>�Q�就可以消除��q���?ji��n)。完整页面如下：(x��) <pre class="code"><%@ page contentType="text/html; charset=gb2312"%> <br/><html> <br/><head> <br/><title>JSP的中文处�?lt;/title> <br/><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><br/></head> <p></p><p><body> <br/><% <br/>out.print("JSP的中文处�?quot;); <br/>%> <br/></body> <br/></html></p></pre><p></p><p>二、表单提交中文时出现��q�� <br/>下面是一个提交页�?submit.jsp)�Q�代码如下：(x��)</p><pre class="code"><html> <br/><head> <br/><title>JSP的中文处�?lt;/title> <br/><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br/></head> <p></p><p><body> <br/><form name="form1" method="post" action="process.jsp"> <br/><div align="center"> <br/><input type="text" name="name"> <br/><input type="submit" name="Submit" value="Submit"> <br/></div> <br/></form> <br/></body> <br/></html> </p></pre>下面是处理页�?process.jsp)代码�Q?<pre class="code"><%@ page contentType="text/html; charset=gb2312"%> <br/><html> <br/><head> <br/><title>JSP的中文处�?lt;/title> <br/><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br/></head> <p></p><p><body> <br/><%=request.getParameter("name")%> <br/></body> <br/></html></p></pre>如果submit.jsp提交英文字符能正���显�C�，如果提交中文时就�?x��)出��Cؕ码。原因：(x��)���览器默认��用UTF-8�~�码方式来发送请求，而UTF-8和GB2312�~�码方式表示字符时不一��P���q�样���出��C��(ji��n)不能识别字符。解军_���?通过request.setCharacterEncoding("gb2312")对请求进行统一�~�码�Q�就实现�?ji��n)中文的正常昄���。修改后的process.jsp代码如下�Q?pre class="code"><%@ page contentType="text/html; charset=gb2312"%> <br/><% <br/>request.seCharacterEncoding("gb2312"); <br/>%> <br/><html> <br/><head> <br/><title>JSP的中文处�?lt;/title> <br/><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br/></head> <p></p><p><body> <br/><%=request.getParameter("name")%> <br/></body> <br/></html></p></pre><p></p><p>三、数据库�q�接出现��q�� <br/>只要涉及(qi��ng)中文的地方全部是��q���Q�解军_��法：(x��)在数据库的数据库URL中加上useUnicode=true&characterEncoding=GBK���O(ji��n)K�?ji��n)�?</p><p>四、数据库的显�C�Zؕ�?<br/>在mysql4.1.0�?varchar�c�d���Q�text�c�d����׃��(x��)出现中文��q���Q�对于varchar�c�d��把它设�ؓ(f��)binary属性就可以解决中文问题�Q�对于text�c�d�����p��用一个编码�{换类来处理，实现如下�Q?</p><pre class="code">public class Convert { <br/>/** 把ISO-8859-1码�{换成GB2312 <br/>*/ <br/>public static String ISOtoGB(String iso){ <br/>String gb; <br/>try{ <br/>if(iso.equals("") || iso == null){ <br/>return ""; <br/>} <br/>else{ <br/>iso = iso.trim(); <br/>gb = new String(iso.getBytes("ISO-8859-1"),"GB2312"); <br/>return gb; <br/>} <br/>} <br/>catch(Exception e){ <br/>System.err.print("�~�码转换错误�Q?quot;+e.getMessage()); <br/>return ""; <br/>} <br/>} <br/>}</pre>把它�~�译成class�Q�就可以调用Convert�cȝ���?r��n)态方法ISOtoGB()来�{换编码�?<p></p><p></p><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-26 20:55 <a href="http://m.tkk7.com/qiyadeng/articles/14141.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
</article>
<article>
<h1>研究�?ji��n)�?Struts-Layout</h1>
<p>qiyadeng — Mon, 26 Sep 2005 09:42:00 GMT</p>
Struts Layout下蝲地址�Q?A >http://struts.application-servers.com/index.html</A><BR>一.配置�Q?BR><A >http://struts.application-servers.com/install.html</A>有详�l�的说明<BR>1.把下面的两端加入到struts-config.xml中：(x��)<BR>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">action </SPAN><SPAN style="COLOR: #ff0000">path</SPAN><SPAN style="COLOR: #0000ff">="/sort"</SPAN><SPAN style="COLOR: #ff0000"><BR> type</SPAN><SPAN style="COLOR: #0000ff">="fr.improve.struts.taglib.layout.sort.SortAction"</SPAN><SPAN style="COLOR: #ff0000"><BR> scope</SPAN><SPAN style="COLOR: #0000ff">="request"</SPAN><SPAN style="COLOR: #ff0000"><BR> validate</SPAN><SPAN style="COLOR: #0000ff">="false"</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff"></< SPAN><SPAN style="COLOR: #800000">action</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR>    <BR></SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">action </SPAN><SPAN style="COLOR: #ff0000">path</SPAN><SPAN style="COLOR: #0000ff">="/treeview"</SPAN><SPAN style="COLOR: #ff0000"><BR> type</SPAN><SPAN style="COLOR: #0000ff">="fr.improve.struts.taglib.layout.treeview.TreeviewAction"</SPAN><SPAN style="COLOR: #ff0000"><BR> scope</SPAN><SPAN style="COLOR: #0000ff">="request"</SPAN><SPAN style="COLOR: #ff0000"><BR> validate</SPAN><SPAN style="COLOR: #0000ff">="false"</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff"></< SPAN><SPAN style="COLOR: #800000">action</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN></DIV><BR>2.复制struts-layout.jar到WEB-INF/lib目录�?BR>3.在web.xml文�g中加入：(x��)<BR>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #000000">   </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">jsp-config</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR>    </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">taglib</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR>     </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">taglib-uri</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">http://struts.application-servers.com/layout</SPAN><SPAN style="COLOR: #0000ff"></< SPAN><SPAN style="COLOR: #800000">taglib-uri</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR>     </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">taglib-location</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">/WEB-INF/struts-layout.tld</SPAN><SPAN style="COLOR: #0000ff"></< SPAN><SPAN style="COLOR: #800000">taglib-location</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR>    </SPAN><SPAN style="COLOR: #0000ff"></< SPAN><SPAN style="COLOR: #800000">taglib</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR>   </SPAN><SPAN style="COLOR: #0000ff"></< SPAN><SPAN style="COLOR: #800000">jsp-config</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN></DIV><BR>4.把struts-layout.tld复制到WEB-INF目录�?BR>5.把resources文�g下的config文�g拯���到webroot目录下，�q�把images目录下的所有文件拷贝到config目录下�?BR>�?实例�q�行�Q?BR>写个一般的jsp�Q�当然对应的Action,ActionForm已经写好�?ji��n)�?BR>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #000000"><%</SPAN><SPAN style="COLOR: #000000">@ taglib uri</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">http://struts.application-servers.com/layout</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> prefix</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">layout</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">%></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:html</SPAN><SPAN style="COLOR: #000000">></SPAN><SPAN style="COLOR: #000000"><BR> </SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:form action</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">/layout</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> styleClass</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">FORM</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">></SPAN><SPAN style="COLOR: #000000"><BR>  </SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:text key</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">search.name</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> property</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">name</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> styleClass</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">FIELD</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">/></SPAN><SPAN style="COLOR: #000000"><BR>  </SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:text key</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">search.town</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> property</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">town</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> styleClass</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">FIELD</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">/></SPAN><SPAN style="COLOR: #000000"><BR>  </SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:date key</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">serach.date</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> property</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">date</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"> styleClass</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">LABEL</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">/></SPAN><SPAN style="COLOR: #000000"><BR>  </SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:submit</SPAN><SPAN style="COLOR: #000000">></SPAN><SPAN style="COLOR: #000000"><BR>   </SPAN><SPAN style="COLOR: #000000"><</SPAN><SPAN style="COLOR: #000000">layout:message key</SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">search.submit</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">/></SPAN><SPAN style="COLOR: #000000"><BR>  </SPAN><SPAN style="COLOR: #000000"></< SPAN><SPAN style="COLOR: #000000">layout:submit</SPAN><SPAN style="COLOR: #000000">></SPAN><SPAN style="COLOR: #000000"><BR> </SPAN><SPAN style="COLOR: #000000"></< SPAN><SPAN style="COLOR: #000000">layout:form</SPAN><SPAN style="COLOR: #000000">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #000000"></< SPAN><SPAN style="COLOR: #000000">layout:html</SPAN><SPAN style="COLOR: #000000">></SPAN></DIV></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-26 17:42 <a href="http://m.tkk7.com/qiyadeng/articles/14131.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
</article>
<article>
<p>qiyadeng — Sat, 24 Sep 2005 13:26:00 GMT</p>
<P>iReport是个好东西，现在已经出来�?.5.1的版本了(ji��n)�Q�但是这个工兯���然好用，但是初��用还是会(x��)遇到不小的麻�?ch��)�?BR>下面说下iReport的基本配�|�：(x��)<BR>1.一般用iReport的同志都是��用Java的，所有配�|�JDK的环境就不说�?ji��n)^_^�?/P>
<P>2.当然需要去下蝲iReport-0.5.1�?ji��n)，记得�q�的捎上个iTextAsian.jar�Q�这是我们中国�h需要的东西�?BR>解压iReport-0.5.1�Q�把\lib目录下的tinylaf.jar,mysql-connector-java-3.0.8-stable-bin.jar�q�两个文件删除，然后把iTextAsian.jar拯���到\lib目录下（tinylaf.jar文�g和iTextAsian.jar有冲�H�，tinylaf.jar文�g删了(ji��n)不会(x��)影响使用�Q�只是会(x��)影响一点美观，应该不关�p�M��大^_^�Q�，其他的配�|�都不需要了(ji��n)�Q�双击该目录下的iReport.bat�q�行iReport�?/P>
<P>3.新徏一个文档看看，�q�往其中��d��一个Static Text�Q�写上中文，�q����择如下�Q�Font name:宋体�Q�PDF font name�Q�STSong-Light,PDF Encoding:UniGB-UCS2-H(Chinese Simplified)�q�三��必修修改，要不中文�?x��)有问题�?BR></P>
<P>4.讄��� DataSource--Connections/DataSource�q�新建，mysql讄���如下,�q�要把你的驱动拷贝到\lib目录下，记得上面删了(ji��n)个mysql-connector-java-3.0.8-stable-bin.jar东西吗？�q�个东西不知道�ؓ(f��)什么也不能用，�q�是用mysql-connector-java-3.1.10-bin.jar�?BR></P>
<P>5.重新启动iReport�Q�再打开Connections/DataSource���试下，应该�?x��)提�C�Z��成功的。然后选择菜单builder-set active connection.�q�样���可以��用了(ji��n)SQL语句�?ji��n)。选择菜单View-Report query,写上句简单的SQL语句�Q�下面就�?x��)显�C�出字段�?BR></P>
<P>6.选择view-Report-field�Q�然后再��d��个Field到报表中按提�C�操作，提醒下，注意下字�D늚��c�d���Q�不正确的话�?x��)出错。如果含有中问的话，处理同上3�?/P>
<P>�q�行下看下效�?builder-Execute Report(using active conn))�Q?/P>
<P></P><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-24 21:26 <a href="http://m.tkk7.com/qiyadeng/articles/13951.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
</article>
<article>
<h1>在web project中��用log4j</h1>
<p>qiyadeng — Fri, 23 Sep 2005 06:16:00 GMT</p>
<P>在web project中��用log4j</P>
<P>下面我们以在tomcat中示范怎么配置和��用log4j</P>
<P>环境讄����Q�用�q�tomcat的都知道�Q�应该把log4j.jar文�g拯����?TOMCAT_HOME%\common\lib中�?BR>�~�辑servlet:<BR></P>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #008080"> 1</SPAN><SPAN style="COLOR: #0000ff">package</SPAN><SPAN style="COLOR: #000000"> my.scwcd;<BR></SPAN><SPAN style="COLOR: #008080"> 2</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 3</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 4</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">import</SPAN><SPAN style="COLOR: #000000"> javax.servlet.ServletException;<BR></SPAN><SPAN style="COLOR: #008080"> 5</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">import</SPAN><SPAN style="COLOR: #000000"> javax.servlet.http.HttpServlet;<BR></SPAN><SPAN style="COLOR: #008080"> 6</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 7</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">import</SPAN><SPAN style="COLOR: #000000"> org.apache.log4j.PropertyConfigurator;<BR></SPAN><SPAN style="COLOR: #008080"> 8</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 9</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">class</SPAN><SPAN style="COLOR: #000000"> Log4jInit </SPAN><SPAN style="COLOR: #0000ff">extends</SPAN><SPAN style="COLOR: #000000"> HttpServlet </SPAN><SPAN id=Codehighlighter1_189_537_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_189_537_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080">10</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">11</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> Log4jInit() </SPAN><SPAN id=Codehighlighter1_212_226_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_212_226_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080">12</SPAN><SPAN style="COLOR: #000000">  </SPAN><SPAN style="COLOR: #0000ff">super</SPAN><SPAN style="COLOR: #000000">();<BR></SPAN><SPAN style="COLOR: #008080">13</SPAN><SPAN style="COLOR: #000000"> }</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">14</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">15</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">void</SPAN><SPAN style="COLOR: #000000"> destroy() </SPAN><SPAN id=Codehighlighter1_252_311_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_252_311_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080">16</SPAN><SPAN style="COLOR: #000000">  </SPAN><SPAN style="COLOR: #0000ff">super</SPAN><SPAN style="COLOR: #000000">.destroy(); </SPAN><SPAN style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000"> Just puts "destroy" string in log</SPAN><SPAN style="COLOR: #008000"><BR></SPAN><SPAN style="COLOR: #008080">17</SPAN><SPAN style="COLOR: #008000"></SPAN><SPAN style="COLOR: #000000"> }</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">18</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">19</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">void</SPAN><SPAN style="COLOR: #000000"> init() </SPAN><SPAN style="COLOR: #0000ff">throws</SPAN><SPAN style="COLOR: #000000"> ServletException </SPAN><SPAN id=Codehighlighter1_358_534_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_358_534_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080">20</SPAN><SPAN style="COLOR: #000000">  String path </SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000"> getServletContext().getRealPath(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">/</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">21</SPAN><SPAN style="COLOR: #000000">  <BR></SPAN><SPAN style="COLOR: #008080">22</SPAN><SPAN style="COLOR: #000000">  String file </SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000"> getInitParameter(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">log4j</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">23</SPAN><SPAN style="COLOR: #000000">  </SPAN><SPAN style="COLOR: #0000ff">if</SPAN><SPAN style="COLOR: #000000">(file </SPAN><SPAN style="COLOR: #000000">!=</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">null</SPAN><SPAN style="COLOR: #000000">)</SPAN><SPAN id=Codehighlighter1_478_528_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_478_528_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080">24</SPAN><SPAN style="COLOR: #000000">   PropertyConfigurator.configure(path</SPAN><SPAN style="COLOR: #000000">+</SPAN><SPAN style="COLOR: #000000">file);<BR></SPAN><SPAN style="COLOR: #008080">25</SPAN><SPAN style="COLOR: #000000">  }</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">26</SPAN><SPAN style="COLOR: #000000">  <BR></SPAN><SPAN style="COLOR: #008080">27</SPAN><SPAN style="COLOR: #000000"> }</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">28</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">29</SPAN><SPAN style="COLOR: #000000">}</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">30</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">31</SPAN><SPAN style="COLOR: #000000"></SPAN></DIV>
<P><BR>�q�在web.xml中加入如下配�|�：(x��)<BR></P>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #008080"> 1</SPAN><SPAN style="COLOR: #000000">  </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">servlet</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 2</SPAN><SPAN style="COLOR: #000000">    </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">servlet-name</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">Log4jInit</SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">servlet-name</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 3</SPAN><SPAN style="COLOR: #000000">    </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">servlet-class</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">my.scwcd.Log4jInit</SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">servlet-class</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 4</SPAN><SPAN style="COLOR: #000000">    </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">init-param</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 5</SPAN><SPAN style="COLOR: #000000">     </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">param-name</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">log4j</SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">param-name</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 6</SPAN><SPAN style="COLOR: #000000">     </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">param-value</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">WEB-INF\log4j.properties</SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">param-value</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 7</SPAN><SPAN style="COLOR: #000000">    </SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">init-param</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 8</SPAN><SPAN style="COLOR: #000000">    </SPAN><SPAN style="COLOR: #0000ff"><</SPAN><SPAN style="COLOR: #800000">load-on-startup</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000">1</SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">load-on-startup</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 9</SPAN><SPAN style="COLOR: #000000">  </SPAN><SPAN style="COLOR: #0000ff"></</SPAN><SPAN style="COLOR: #800000">servlet</SPAN><SPAN style="COLOR: #0000ff">></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">10</SPAN><SPAN style="COLOR: #000000"></SPAN></DIV>
<P><BR>注意上面<param-value>中的"\"在linux要写�?/"�?BR>�q�有加上log4j.properties文�g在WEB-INF目录�?BR><pre class="code">log4j.rootLogger=INFO, A1 , R<BR>log4j.appender.A1=org.apache.log4j.ConsoleAppender<BR>log4j.appender.A1.layout=org.apache.log4j.PatternLayout<BR>log4j.appender.A1.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%c]-[%p] %m%n</P>
<P>log4j.appender.R=org.apache.log4j.RollingFileAppender<BR>log4j.appender.R.File=log4j.log<BR>log4j.appender.R.MaxFileSize=100KB<BR>log4j.appender.R.MaxBackupIndex=1<BR>log4j.appender.R.layout=org.apache.log4j.PatternLayout<BR>log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n</pre></P>
<P> </P>
<P>下面写了(ji��n)两个���试的程序：(x��)<BR>servlet Test.java中：(x��)<BR></P>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #008080"> 1</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">void</SPAN><SPAN style="COLOR: #000000"> doGet(HttpServletRequest request, HttpServletResponse response)<BR></SPAN><SPAN style="COLOR: #008080"> 2</SPAN><SPAN style="COLOR: #000000">   </SPAN><SPAN style="COLOR: #0000ff">throws</SPAN><SPAN style="COLOR: #000000"> ServletException, IOException </SPAN><SPAN id=Codehighlighter1_117_362_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_117_362_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080"> 3</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 4</SPAN><SPAN style="COLOR: #000000">  response.setContentType(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">text/html</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080"> 5</SPAN><SPAN style="COLOR: #000000">  PrintWriter out </SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000"> response.getWriter();<BR></SPAN><SPAN style="COLOR: #008080"> 6</SPAN><SPAN style="COLOR: #000000">  Logger logger </SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000"> Logger.getLogger(Test.</SPAN><SPAN style="COLOR: #0000ff">class</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080"> 7</SPAN><SPAN style="COLOR: #000000">  logger.info(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">Test use Logging for Servlet</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080"> 8</SPAN><SPAN style="COLOR: #000000">  out.println(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"><h1>Success<h1></SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080"> 9</SPAN><SPAN style="COLOR: #000000">  out.flush();<BR></SPAN><SPAN style="COLOR: #008080">10</SPAN><SPAN style="COLOR: #000000">  out.close();<BR></SPAN><SPAN style="COLOR: #008080">11</SPAN><SPAN style="COLOR: #000000"> }</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">12</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">13</SPAN><SPAN style="COLOR: #000000"></SPAN></DIV>
<P><BR>JSP temp.jsp中：(x��)<BR></P>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #008080">1</SPAN><SPAN style="COLOR: #000000">   </SPAN><SPAN style="COLOR: #000000"><%</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">2</SPAN><SPAN style="COLOR: #000000">    response.setContentType(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">text/html</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">3</SPAN><SPAN style="COLOR: #000000">  Logger logger </SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000"> Logger.getLogger(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">temp.jsp</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">4</SPAN><SPAN style="COLOR: #000000">  logger.info(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">Test use Logging for JSP</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">5</SPAN><SPAN style="COLOR: #000000">  out.println(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000"><h1>Success<h1></SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">6</SPAN><SPAN style="COLOR: #000000">   </SPAN><SPAN style="COLOR: #000000">%></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">7</SPAN><SPAN style="COLOR: #000000"></SPAN></DIV>
<P><BR>�q�样�?TOMCAT_HOME%\bin目录下会(x��)产生log4j.log的文�Ӟ���q�就是日志文件�?/P><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-23 14:16 <a href="http://m.tkk7.com/qiyadeng/articles/13834.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
</article>
<article>
<h1>在应用程序中使用log4j</h1>
<p>qiyadeng — Fri, 23 Sep 2005 03:15:00 GMT</p>
<P>1、在应用�E�序中��用log4j<BR>2、把log4j-*.*jar攑օ�CLASSPATH变量�?BR>�~�辑如下���单java文�g�Q?BR></P>
<DIV style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN style="COLOR: #008080"> 1</SPAN><SPAN style="COLOR: #0000ff">package</SPAN><SPAN style="COLOR: #000000"> logging;<BR></SPAN><SPAN style="COLOR: #008080"> 2</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">import</SPAN><SPAN style="COLOR: #000000"> org.apache.log4j.Logger;<BR></SPAN><SPAN style="COLOR: #008080"> 3</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">import</SPAN><SPAN style="COLOR: #000000"> org.apache.log4j.PropertyConfigurator;<BR></SPAN><SPAN style="COLOR: #008080"> 4</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 5</SPAN><SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">class</SPAN><SPAN style="COLOR: #000000"> TestLog4j </SPAN><SPAN id=Codehighlighter1_119_403_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_119_403_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080"> 6</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080"> 7</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">static</SPAN><SPAN style="COLOR: #000000"> Logger logger </SPAN><SPAN style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000"> Logger.getLogger(TestLog4j.</SPAN><SPAN style="COLOR: #0000ff">class</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080"> 8</SPAN><SPAN style="COLOR: #000000"> <BR></SPAN><SPAN style="COLOR: #008080"> 9</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">public</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">static</SPAN><SPAN style="COLOR: #000000"> </SPAN><SPAN style="COLOR: #0000ff">void</SPAN><SPAN style="COLOR: #000000"> main(String args[])</SPAN><SPAN id=Codehighlighter1_222_401_Closed_Text style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"></SPAN><SPAN id=Codehighlighter1_222_401_Open_Text><SPAN style="COLOR: #000000">{<BR></SPAN><SPAN style="COLOR: #008080">10</SPAN><SPAN style="COLOR: #000000">  PropertyConfigurator.configure(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">log4j.properties</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">11</SPAN><SPAN style="COLOR: #000000">  logger.info(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">Hello World</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">12</SPAN><SPAN style="COLOR: #000000">  logger.error(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">Hello World</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">13</SPAN><SPAN style="COLOR: #000000">  logger.warn(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">Hello World</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">14</SPAN><SPAN style="COLOR: #000000">  logger.debug(</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">Hello World</SPAN><SPAN style="COLOR: #000000">"</SPAN><SPAN style="COLOR: #000000">);<BR></SPAN><SPAN style="COLOR: #008080">15</SPAN><SPAN style="COLOR: #000000"> }</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">16</SPAN><SPAN style="COLOR: #000000">}</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">17</SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #008080">18</SPAN><SPAN style="COLOR: #000000"></SPAN></DIV>
<P><BR>新徏一个配�|�文件log4j.properties�Q?PRE class=code><BR>log4j.rootLogger=WARN, stdout, R<BR>log4j.appender.stdout=org.apache.log4j.ConsoleAppender<BR>log4j.appender.stdout.layout=org.apache.log4j.PatternLayout<BR># Pattern to output the caller's file name and line number.<BR>#log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n<BR># Print the date in ISO 8601 format<BR>log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c - %m%n<BR>log4j.appender.R=org.apache.log4j.RollingFileAppender<BR>log4j.appender.R.File=example.log<BR>log4j.appender.R.MaxFileSize=100KB<BR># Keep one backup file<BR>log4j.appender.R.MaxBackupIndex=1<BR>log4j.appender.R.layout=org.apache.log4j.PatternLayout<BR>log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n<BR># Print only messages of level WARN or above in the package com.foo.<BR>log4j.logger.com.foo=WARN<P></P></PRE>
<P>�~�译�q�运行TestLog4j�?x��)在目录下生成一个example.log的文�Ӟ��屏幕也会(x��)输出信息�Q�这证明已经你已�l�成功了(ji��n)�W�一步�?BR>下面解释下这些配�|�文�?BR><BR>log4j.rootLogger = [ level ], appendName1, appendName2, …appendNameN。同一个记录器可有多个输出端�?BR>PS�Q�level的��别（此��别可以自定义�Q�系�l�默认提供了(ji��n)以下�U�别�Q?BR>debug//调试信息<BR>info//一般信�?BR>warn//警告信息<BR>error//错误信息<BR>fatal//致命错误信息<BR>上面列出的就是所谓log4j的输出��别，log4j�����只���?个��别，它们从上��C��分别为ERROR、WARN、INFO、DEBUG�Q�假设你定义的��别是info�Q�那么error和warn的日志可以显�C����比他低的debug信息��׃��昄����?ji��n)�?<BR>log4j.appender.appenderName = fully.qualified.name.of.appender.class。log4j提供�?ji��n)以下几�U�常用的输出目的圎ͼ�(x��)<BR>org.apache.log4j.ConsoleAppender�Q�将日志信息输出到控制台<BR>org.apache.log4j.FileAppender�Q�将日志信息输出��C��个文�?BR>org.apache.log4j.DailyRollingFileAppender�Q�将日志信息输出��C��个，�q�且每天输出��C��个新的日志文�?BR>org.apache.log4j.RollingFileAppender�Q�将日志信息输出��C��个文�Ӟ��通过指定文�g的的���寸�Q�当文�g大小到达指定���寸的时候会(x��)自动把文件改名，如名为example.log的文件会(x��)改名�?example.log.1�Q�同时��生一个新的example.log文�g。如果新的文件再�ơ达到指定尺寸，又会(x��)自动把文件改名�ؓ(f��) example.log.2�Q�同时��生一个example.log文�g。依此类推，直到example.log. MaxBackupIndex�Q?MaxBackupIndex的值可在配�|�文件中定义�?BR>org.apache.log4j.WriterAppender�Q�将日志信息以流格式发送到��L��指定的地斏V�?BR>org.apache.log4j.jdbc.JDBCAppender�Q�通过JDBC把日志信息输出到数据库中�?BR><BR>Log4j提供�?ji��n)一下几�U�布局�Q?BR>org.apache.log4j.HTMLLayout�Q�以HTML表格形式布局<BR>org.apache.log4j.PatternLayout�Q�可以灵�z�d��指定布局模式<BR>org.apache.log4j.SimpleLayout�Q�包含日志信息的�U�别和信息字�W�串<BR><BR>定义一个PatternLayout布局的语句�ؓ(f��)�Q?BR>log4j.appender.stdout.layout=org.apache.log4j.PatternLayout<BR>log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1} - %m%n<BR>PS�Q�ConversionPattern参数的格式含�?BR>格式�?含义<BR>%c 输出日志信息所属的�cȝ��全名<BR>%d 输出日志旉���点的日期或时��_(d��)��默认格式为ISO8601�Q�也可以在其后指定格式，比如�Q?d{yyy-MM-dd HH:mm:ss }�Q�输出类��|��(x��)2002-10-18- 22�Q?0�Q?8<BR>%f 输出日志信息所属的�cȝ���c�d��<BR>%l 输出日志事�g的发生位�|�，卌���出日志信息的语句处于它所在的�cȝ���W�几�?BR>%m 输出代码中指定的信息�Q�如log(message)中的message<BR>%n 输出一个回车换行符�Q�W(xu��)indows�q�_��为“\r\n”，Unix�q�_��为“\n�?BR>%p 输出优先�U�，即DEBUG�Q�INFO�Q�W(xu��)ARN�Q�ERROR�Q�FATAL。如果是调用debug()输出的，则�ؓ(f��)DEBUG�Q�依此类�?BR>%r 输出自应用启动到输出该日志信息所耗费的毫�U�数<BR>%t 输出产生该日志事件的�U�程�?BR><BR>另外很好的学�?f��n)笔讎ͼ?x��)<BR><A >http://www.sentom.net/list.asp?id=59</A><BR><A >http://www.sentom.net/list.asp?id=60</A><BR><A >http://www.sentom.net/list.asp?id=61</A></P><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-23 11:15 <a href="http://m.tkk7.com/qiyadeng/articles/13819.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
</article>
<article>
<h1>用java写个MD5加密的类</h1>
<p>qiyadeng — Tue, 20 Sep 2005 13:24:00 GMT</p>
<p></p><p>�׃��一个应用，我需要一个MD5���法加密数据�Q�我查看�?ji��n)网上一些资料，发现其他的语�a�都是要自己实现的�Q�但是Java���很���单，因�ؓ(f��)java中的�c�d���l�处理好�?ji��n)，而且�q�可以选其他的加密���法�Q�如SHA�Q�下面就�l�一个例�?/p><pre class="code"><p></p><p>/*<br/> * Created on 2005-5-21<br/> *<br/> * TODO To change the template for this generated file go to<br/> * Window - Preferences - Java - Code Style - Code Templates<br/> */<br/>package com.merrylin.util;</p><p>import java.security.MessageDigest;<br/>import java.security.NoSuchAlgorithmException;</p><p>/**<br/> * @author Administrator<br/> *<br/> * TODO To change the template for this generated type comment go to<br/> * Window - Preferences - Java - Code Style - Code Templates<br/> */<br/>public class MD5Class {</p><p> public static String MD5Encrypt(String inStr) {<br/>  MessageDigest md = null;<br/>  String outStr = null;</p><p>  try {<br/>   md = MessageDigest.getInstance("MD5");       //可以选中其他的算法如SHA<br/>   byte[] digest = md.digest(inStr.getBytes());       //�q�回的是byet[]�Q�要转化为String存储比较方便<br/>   outStr = bytetoString(digest);<br/>  } catch (NoSuchAlgorithmException nsae) {<br/>   nsae.printStackTrace();<br/>  }</p><p>  return outStr;<br/> }</p><p> public static String bytetoString(byte[] digest) {<br/>  String str = "";<br/>  String tempStr = "";</p><p>  for (int i = 1; i < digest.length; i++) {<br/>   tempStr = (Integer.toHexString(digest[i] & 0xff));<br/>   if (tempStr.length() == 1) {<br/>    str = str + "0" + tempStr;<br/>   } else {<br/>    str = str + tempStr;<br/>   }<br/>  }</p><p>  return str.toLowerCase();<br/> }</p></pre><p></p><p>}</p><p>���单吧�Q�如果你只是要应用，���可以不知道MD5的算法了(ji��n)�Q�但是要想知道更多，可以参看�|�上的源码或�?a ><font color="#000000">http://www.donews.net/qiyadeng/archive/2005/05/26/399340.aspx</font></a><font color="#000000">。但是注意MD5加密���法�Q�破解还是很困难�Q�虽然报道称�׃��大学的王���云教授好像是已�l�寻扑ֈ��?ji��n)破解的��?gu��)���?/font></p><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-20 21:24 <a href="http://m.tkk7.com/qiyadeng/articles/13578.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
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<p>qiyadeng — Tue, 20 Sep 2005 13:23:00 GMT</p>
<div>对于jsp的web�E�序来说�Q�配�|�连接池是必不可���的。JBoss配置MySql的连接池�Q�可以查看官�Ҏ(gu��)��档，地址为：(x��)<a >http://docs.jboss.org/jbossas/getting_started/v4/html/db.html</a>�?/div><div>我这里的配置分�ؓ(f��)以下几步�Q?/div><div>�W�一步：(x��)从jboss-4.0.2\docs\examples\jca目录下的mysql-ds.xml复制文�g到D:\jboss-4.0.2\server\default\deploy目录下�ƈ�~�辑如下�Q?/div><pre class="code"><div><?xml version="1.0" encoding="UTF-8"?></div><div><!-- $Id: mysql-ds.xml,v 1.3.2.1 2004/12/01 11:46:00 schrouf Exp $ --><br/><!--  Datasource config for MySQL using 3.0.9 available from:<br/><a >http://www.mysql.com/downloads/api-jdbc-stable.html</a><br/>--></div><div><datasources><br/>  <local-tx-datasource><br/>    <jndi-name>MySqlDS</jndi-name><br/>    <connection-url>jdbc:mysql://localhost:3306/test</connection-url><br/>    <driver-class>com.mysql.jdbc.Driver</driver-class><br/>    <user-name>root</user-name><br/>    <password>root</password><br/>    <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name><br/>    <!-- sql to call when connection is created<br/>    <new-connection-sql>some arbitrary sql</new-connection-sql><br/>      --><br/>    <!-- sql to call on an existing pooled connection when it is obtained from pool <br/>    <check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql><br/>      --></div><div>    <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) --><br/>    <metadata><br/>       <type-mapping>mySQL</type-mapping><br/>    </metadata><br/>  </local-tx-datasource><br/></datasources></div></pre><div>�W�二步：(x��)�~�辑jboss-4.0.2\server\default\conf下的三个文�g�Q�standardjbosscmp-jdbc.xml�Q�standardjaws.xml�Q�login-config.xml</div><div>standardjbosscmp-jdbc.xml修改部分�Q?/div><pre class="code"><div>      <datasource>java:/MySqltDS</datasource><br/>      <datasource-mapping>mySQL</datasource-mapping></div></pre><div>standardjaws.xml修改部分�Q?/div><pre class="code"><div>   <datasource>java:/MySqltDS</datasource><br/>   <type-mapping>mySQL</type-mapping></div></pre><div>login-config.xml修改部分�Q�（可以��d���q�一�D�，复制一�D�进行修改）(j��)</div><pre class="code"><div>    <application-policy name = "MySqlDbRealm"><br/>       <authentication><br/>          <login-module code = "org.jboss.resource.security.ConfiguredIdentityLoginModule"<br/>             flag = "required"><br/>             <module-option name = "principal">test</module-option><br/>             <module-option name = "userName">root</module-option><br/>             <module-option name = "password">root</module-option><br/>             <module-option name = "managedConnectionFactoryName">jboss.jca:service=LocalTxCM,name=MySqlDS</module-option><br/>          </login-module><br/>       </authentication><br/>    </application-policy></div></pre><div></div><div>�W�三步：(x��)重启jboss没有出现异常�Q�就�?x��)有如下昄����Q�证明配�|�正���：(x��)</div><div></div><div>�W�四步：(x��)如果你还步放�?j��)，现在写个servlet试试吧：(x��)</div><pre class="code"><div>  response.setContentType("text/html;charset=gb2312");<br/>  PrintWriter out = response.getWriter();<br/>  try {<br/>   // Put your code here<br/>   Context cx  = new InitialContext();<br/>   Object obj = cx.lookup("java:/MySqlDS");<br/>   DataSource ds = (DataSource)obj;<br/>   Connection connect = ds.getConnection();<br/>   Statement stmt = connect.createStatement();<br/>   ResultSet rs = stmt.executeQuery("select * from customers");<br/>   while(rs.next()){<br/>    out.println(rs.getString("name"));<br/>   }<br/>  } catch (NamingException e) {<br/>   e.printStackTrace();<br/>  } catch(SQLException e1){<br/>   e1.printStackTrace();<br/>  }<br/>  out.flush();<br/>  out.close();</div></pre><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-20 21:23 <a href="http://m.tkk7.com/qiyadeng/articles/13577.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
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<p>qiyadeng — Tue, 20 Sep 2005 13:21:00 GMT</p>
<BR>native2ascii虽然是个很小的工�?但是用处不小.在我们这些非��p��国家特别有用,如一些Strut和JSF的配�|�文�?如果要��用中文就必须要用到该工具.<BR>如下面这�?使用��h��很方�?<BR><PRE class=code>[root@localhost root]# native2ascii<BR>你好世界!<BR>\u4f60\u597d\u4e16\u754c!<BR></PRE><BR>但是我好像发现点问题,我用eclipse(MyEclipse)�~�辑完的文�g,用中文写�?���没有办法来转换,不知道什么原�?<BR>当然native2ascii�q�不臌���些用�?���是在反�~�译别�h的程序中,也可以把那些Unicode转化成中�?<BR><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-20 21:21 <a href="http://m.tkk7.com/qiyadeng/articles/13576.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
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<p>qiyadeng — Tue, 20 Sep 2005 13:20:00 GMT</p>
<p>在JSP和Servlet中有时候需要读取web.xml的初始化参数�Q�比如可以用于设�|�JNDI的数据源的名字。下面简单介�l�下在JSP和Servlet中怎么��d��web.xml的初始化参数�?/p><p>一、在Servlet中读取：(x��)</p><p>在Servlet中一般可以用ServletConfig对象的getInitParameter�Ҏ(gu��)��去读取指定的参数的倹{���D个例子：(x��)</p><p>新徏一个Servlet�Q�ReadInitParameter.java</p><p>�q�在web.xml中增加如下配�|�：(x��)</p><p></p><pre class="code">  <servlet><br/>    <servlet-name>ReadInitParameter</servlet-name><br/>    <servlet-class>com.test.ReadInitParameter</servlet-class><br/>    <init-param><br/>      <param-name>email</param-name><br/>      <param-value>qiyadeng@haha.com</param-value><br/>    </init-param><br/>    <init-param><br/>      <param-name>name</param-name><br/>      <param-value>qiyadeng</param-value><br/>    </init-param><br/>  </servlet></pre><br/>   <servletclass>com.test.ReadInitParameter</servlet-class>是servlet的完整�\径，包括包名�?p></p><p>配置好了(ji��n)web.xml�Q�现在可以在�E�序中读取初始化的参��C��(ji��n)。在init(ServletConfig config)�Ҏ(gu��)��中传递了(ji��n)一个ServletConfig参数�Q�可以这栯���取初始化参数�Q?/p><p></p><pre class="code">  public void init(ServletConfig config) throws ServletException<br/>  {<br/>    super.init(config);<br/>    String email = config.getInitParameter("email");<br/>    String name = config.getInitParameter("name");<br/>  }</pre><br/>在其他的�Ҏ(gu��)��中象doGet(),doPost(),service()�Ҏ(gu��)��中可以用getServeltConfig()�Ҏ(gu��)��得到一个ServetConfig对象�Q�在利用该对象的getInitParameter()�Ҏ(gu��)��取到对应的初始化参数�?p></p><p></p><pre class="code"><strong>  </strong>String email   = getServletConfig().getInitParameter<strong>("</strong>email<b>");<br/>  </b>String name= getServletConfig().getInitParameter<strong>("</strong>name<strong>");</strong></pre><p></p><p>二、在JSP中读取：(x��)</p><p>在JSP中读取的方式和Servlet中的doGet(),doPost(),Service()的方法一��P��都是由ServletConfig对象来读取的�?/p><p></p><pre class="code">  <%<br/>    String zhutou = getServletConfig().getInitParameter("zhutou");<br/>    String zhutouname = getServletConfig().getInitParameter("zhutouname");</pre><br/>  %><p></p><p>但是�Q�在web.xml的配�|�需要注意一�?新增如下�Q?/p><p></p><pre class="code">  <servlet><br/>    <servlet-name>ReadInitParam</servlet-name><br/>    <jsp-file>ReadInitParam.jsp</jsp-file><br/>    <init-param><br/>      <param-name>zhutou</param-name><br/>      <param-value>zhutou@hotmail.com</param-value><br/>    </init-param><br/>    <init-param><br/>      <param-name>zhutouname</param-name><br/>      <param-value>zhutou</param-value><br/>    </init-param><br/>  </servlet></pre><p></p><p>在servlet-mapping中也要配�|�好�Q?/p><p></p><pre class="code">  <servlet-mapping><br/>    <servlet-name>ReadInitParam</servlet-name><br/>    <url-pattern>ReadInitParam.jsp</url-pattern><br/>  </servlet-mapping></pre><p></p><p>上面的ReadInitParam.jsp出现的标�{�N��要jsp文�g的全部�\径�?/p><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-20 21:20 <a href="http://m.tkk7.com/qiyadeng/articles/13575.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
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<h1>web-app_2_2.xml(仅供学习(f��n)方便)</h1>
<p>qiyadeng — Tue, 20 Sep 2005 12:59:00 GMT</p>
     摘要: <?xml version="1.0" encoding="ISO-8859-1"?><!--Copyright 1999 Sun Microsystems, Inc. 901 San Antonio Road,Palo Alto, CA  ...  <a href='http://m.tkk7.com/qiyadeng/articles/13570.html'>阅读全文</a><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-20 20:59 <a href="http://m.tkk7.com/qiyadeng/articles/13570.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
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<p>qiyadeng — Tue, 20 Sep 2005 12:56:00 GMT</p>
<p>对Struts实行国际�?br/>(1)讄���字符�~�码<br/>��Z��(ji��n)保证在同一JSP��面能支持多�U�语�a��Q�可以将所有JSP��面的字�W�编码统一讄����?quot;UTF-8"<br/></p><pre class="code"><%@ page contentType="text/html;charset=UTF-8" language="java"%></pre><br/>(2)�Ҏ(gu��)��本，按钮�Q�图片国际化<br/>(3)创徏英文�Q�中文资源文�?br/>(4)对中文资源文件进行编码�{�?br/>用JDK中的native2ascii工具对中文资源进行�{�?br/><pre class="code">native2ascii -encoding gb2312 applicaion_CN.properties application_CN.properties</pre><br/>(5)采用Servlet�q���o(h��)器设�|�请求数据的字符�~�码<br/>��d��如下�c�SetCharacterEncodingFilter:<br/><pre class="code">package com.yourcompany.struts;<p></p><p>import java.io.IOException;</p><p>import javax.servlet.Filter;<br/>import javax.servlet.FilterChain;<br/>import javax.servlet.FilterConfig;<br/>import javax.servlet.ServletException;<br/>import javax.servlet.ServletRequest;<br/>import javax.servlet.ServletResponse;</p><p>public class SetCharacterEncodingFilter implements Filter {</p><p> public void init(FilterConfig arg0) throws ServletException {<br/> }</p><p> public void doFilter(ServletRequest request, ServletResponse response,<br/>   FilterChain chain) throws IOException, ServletException {<br/>  request.setCharacterEncoding("UTF-8");<br/>  chain.doFilter(request,response);</p><p> }</p><p> public void destroy() {<br/> }</p><p>}</p></pre><br/>�q�在web.xml中添加如下设�|�：(x��)<br/>  <pre class="code"> <filter><br/>    <filter-name>Character Encoding</filter-name><br/>    <filter-class>com.yourcompany.struts.SetCharacterEncodingFilter</filter-class><br/>   </filter><br/>   <filter-mapping><br/>    <filter-name>Character Encoding</filter-name><br/>    <url-pattern>/*</url-pattern><br/>   </filter-mapping></pre><p></p><p><br/></p><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/qiyadeng/" target="_blank">qiyadeng</a> 2005-09-20 20:56 <a href="http://m.tkk7.com/qiyadeng/articles/13569.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>
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