1 package poi;
2 import java.io.FileInputStream;
3 import java.io.IOException;
4 import java.io.InputStream;
5 import java.util.Iterator;
6 import org.apache.poi.hssf.usermodel.HSSFCell;
7 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
8 import org.apache.poi.ss.usermodel.Cell;
9 import org.apache.poi.ss.usermodel.Row;
10 import org.apache.poi.ss.usermodel.Sheet;
11 import org.apache.poi.ss.usermodel.Workbook;
12 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
13
14 public class ReadExcel001 {
15 public static void main(String[] args) {
16 readXml("D:/test.xlsx");
17 System.out.println("-------------");
18 readXml("d:/test2.xls");
19 }
20 public static void readXml(String fileName){
21 boolean isE2007 = false; //判斷是否是excel2007格式
22 if(fileName.endsWith("xlsx"))
23 isE2007 = true;
24 try {
25 InputStream input = new FileInputStream(fileName); //建立輸入流
26 Workbook wb = null;
27 //根據(jù)文件格式(2003或者2007)來初始化
28 if(isE2007)
29 wb = new XSSFWorkbook(input);
30 else
31 wb = new HSSFWorkbook(input);
32 Sheet sheet = wb.getSheetAt(0); //獲得第一個(gè)表單
33 Iterator<Row> rows = sheet.rowIterator(); //獲得第一個(gè)表單的迭代器
34 while (rows.hasNext()) {
35 Row row = rows.next(); //獲得行數(shù)據(jù)
36 System.out.println("Row #" + row.getRowNum()); //獲得行號從0開始
37 Iterator<Cell> cells = row.cellIterator(); //獲得第一行的迭代器
38 while (cells.hasNext()) {
39 Cell cell = cells.next();
40 System.out.println("Cell #" + cell.getColumnIndex());
41 switch (cell.getCellType()) { //根據(jù)cell中的類型來輸出數(shù)據(jù)
42 case HSSFCell.CELL_TYPE_NUMERIC:
43 System.out.println(cell.getNumericCellValue());
44 break;
45 case HSSFCell.CELL_TYPE_STRING:
46 System.out.println(cell.getStringCellValue());
47 break;
48 case HSSFCell.CELL_TYPE_BOOLEAN:
49 System.out.println(cell.getBooleanCellValue());
50 break;
51 case HSSFCell.CELL_TYPE_FORMULA:
52 System.out.println(cell.getCellFormula());
53 break;
54 default:
55 System.out.println("unsuported sell type");
56 break;
57 }
58 }
59 }
60 } catch (IOException ex) {
61 ex.printStackTrace();
62 }
63 }
64 }
tomcat如果是通過windows服務(wù)啟動，執(zhí)行的是bin\tomcat.exe.他讀取注冊表中的值,而不是catalina.bat的設(shè)置.解決辦法:修改注冊表HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Procrun 2.0\Tomcat6\Parameters\JavaOptions原值為-Dcatalina.home=E:\Tomcat 6.0-Dcatalina.base=E:\Tomcat 6.0-Djava.endorsed.dirs=E:\Tomcat 6.0\common\endorsed-Djava.io.tmpdir=E:\Tomcat 6.0\temp-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager-Djava.util.logging.config.file=E:\Tomcat 6.0\conf\logging.properties
在后面增加即可：
-Xms128M
-Xmx512M
-XX:PermSize=128M
-XX:MaxPermSize=512M
必須要分行寫。
最終效果如下：
當(dāng)一個(gè)數(shù)據(jù)庫的數(shù)據(jù)文件達(dá)到表空間的最大值時(shí)，報(bào)ORA-1653:的錯(cuò)誤。如下：
ORA-1653: unable to extend table TEST.COMM_DTTR_SVR_LOG by64 in tablespace TEST_SPACE
解決：
可以在該表空間中增加一個(gè)數(shù)據(jù)文件，增加的數(shù)據(jù)文件為自動擴(kuò)展，無限擴(kuò)大。
查看數(shù)據(jù)文件的大小和最大的值，可以查詢dba_data_files;
Sql>
alter tablespace TEST_SPACE
adddatafile'/Oracle/oms/oradata/pub/Norm_data001.dbf'
size 10M autoextend on MAXSIZE UNLIMITED;
或者把該表空間所在的數(shù)據(jù)文件設(shè)置成自動擴(kuò)張，設(shè)置該maxsize更大，unlimited表示沒有限制。
SQL>
alter database
datafile '/oracle/oms/oradata/pub/Pub_Norm_data001.dbf'
autoextend on maxsize unlimited;
共計(jì)以下4個(gè)文件 點(diǎn)擊“下載”
login.html
welcome.html
cookie.js
common.js
login.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>login</title>
<script type="text/javascript" src="cookie.js"></script>
<script type="text/javascript" src="common.js"></script>
</head>
<body>
<form action="">
<p>
<span>UserName:</span>
<input id="userName" type="text" value=""/></p>
<p>
<span>Password:</span>
<input id="password" type="password" value=""/></p>
<p>
<span style="font-size:12px; color:blue;">記住密碼</span>
<input id="saveCookie" type="checkbox" value="" /></p>
<p>
<input id="submit" type="button" value="GO" />
</p>
</form>
</body>
</html>
welcome.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>welcome</title>
</head>
<body>
<h1>Welcome!</h1>
<a href="login.html">點(diǎn)擊返回登陸框</a>
</body>
</html>
cookie.js
//新建cookie。
//hours為空字符串時(shí),cookie的生存期至瀏覽器會話結(jié)束。hours為數(shù)字0時(shí),建立的是一個(gè)失效的cookie,這個(gè)cookie會覆蓋已經(jīng)建立過的同名、同path的cookie（如果這個(gè)cookie存在）。
function setCookie(name,value,hours,path){
var name = escape(name);
var value = escape(value);
var expires = new Date();
expires.setTime(expires.getTime() + hours*3600000);
path = path == "" ? "" : ";path=" + path;
_expires = (typeof hours) == "string" ? "" : ";expires=" + expires.toUTCString();
document.cookie = name + "=" + value + _expires + path;
}
//獲取cookie值
function getCookieValue(name){
var name = escape(name);
//讀cookie屬性，這將返回文檔的所有cookie
var allcookies = document.cookie;
//查找名為name的cookie的開始位置
name += "=";
var pos = allcookies.indexOf(name);
//如果找到了具有該名字的cookie，那么提取并使用它的值
if (pos != -1){ //如果pos值為-1則說明搜索"version="失敗
var start = pos + name.length; //cookie值開始的位置
var end = allcookies.indexOf(";",start); //從cookie值開始的位置起搜索第一個(gè)";"的位置,即cookie值結(jié)尾的位置
if (end == -1) end = allcookies.length; //如果end值為-1說明cookie列表里只有一個(gè)cookie
var value = allcookies.substring(start,end); //提取cookie的值
return (value); //對它解碼
}
else return ""; //搜索失敗，返回空字符串
}
//刪除cookie
function deleteCookie(name,path){
var name = escape(name);
var expires = new Date(0);
path = path == "" ? "" : ";path=" + path;
document.cookie = name + "="+ ";expires=" + expires.toUTCString() + path;
}
common.js
function $(objStr){return document.getElementById(objStr);}
window.onload = function(){
//分析cookie值，顯示上次的登陸信息
var userNameValue = getCookieValue("userName");
$("userName").value = userNameValue;
var passwordValue = getCookieValue("password");
$("password").value = passwordValue;
//寫入點(diǎn)擊事件
$("submit").onclick = function()
{
var userNameValue = $("userName").value;
var passwordValue = $("password").value;
//服務(wù)器驗(yàn)證（模擬）
var isAdmin = userNameValue == "admin" && passwordValue =="123456";
var isUserA = userNameValue == "userA" && passwordValue =="userA";
var isMatched = isAdmin || isUserA;
if(isMatched){
if( $("saveCookie").checked){
setCookie("userName",$("userName").value,24,"/");
setCookie("password",$("password").value,24,"/");
}
alert("登陸成功,歡迎你," + userNameValue + "!");
self.location.replace("welcome.html");
}
else alert("用戶名或密碼錯(cuò)誤，請重新輸入！");
}
}