滚动�Ҏ��大全

齐函 — Thu, 16 Aug 2007 04:16:00 GMT

摘要: 滚动�Ҏ��大全一、我认�ؓ比较好用的一个方�?lt;table> &nb... 阅读全文

齐函 2007-08-16 12:16 发表评论

齐函 — Fri, 22 Jun 2007 01:57:00 GMT

我在用FileUpLoad��图片上传保存之�?下次要修改的时�?怎么把原囄��的�\径填充到FileUpLoad里面.以便让自��q��道以前的囄��.然后��定是否要更�?

齐函 2007-06-22 09:57 发表评论

齐函 — Tue, 03 Apr 2007 05:55:00 GMT

package file;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;
/**
* 文�g操作�c?主要�Ҏ��务端的版本程序进行更�?br> * @author frienfship
*
*/
public class FileOperate {

private String message;

public FileOperate() {
}

/**
* 取得目录的绝对�\�?br> * @return �q�回�l�对路径
*/
public static String getAbsolutePath(){
File file = new File("ecq");
file.mkdir();
String path=file.getAbsolutePath();
return path;
}

/**
* 重命名文件夹
* @param path 原文件夹路径
* @param newname 新名�U?br> * @return
*/
public static void renamePath(String path, String newname){
File file = new File(path);

String oldpath = path;
int point = oldpath.lastIndexOf('/');
String beyondpath = oldpath.substring(0, point);
String newpath = beyondpath + newname;
File newfile = new File(newpath);

file.renameTo(newfile);

// file.mkdirs();

}

/**
* ��d��文本文�g内容
* @param filePathAndName 带有完整�l�对路径的文件名
* @param encoding 文本文�g打开的编码方�?br> * @return �q�回文本文�g的内�?br> */
public String readTxt(String filePathAndName, String encoding)
   throws IOException {
encoding = encoding.trim();
StringBuffer str = new StringBuffer("");
String st = "";
try {
   FileInputStream fs = new FileInputStream(filePathAndName);
   InputStreamReader isr;
   if (encoding.equals("")) {
    isr = new InputStreamReader(fs);
   } else {
    isr = new InputStreamReader(fs, encoding);
   }
   BufferedReader br = new BufferedReader(isr);
   try {
    String data = "";
    while ((data = br.readLine()) != null) {
     str.append(data + " ");
    }
   } catch (Exception e) {
    str.append(e.toString());
   }
   st = str.toString();
} catch (IOException es) {
   st = "";
}
return st;
}

/**
* 新徏目录
* @param folderPath 目录
* @return �q�回目录创徏后的路径
*/
public String createFolder(String folderPath) {
String txt = folderPath;
try {
   java.io.File myFilePath = new java.io.File(txt);
   txt = folderPath;
   if (!myFilePath.exists()) {
    myFilePath.mkdir();
   }
} catch (Exception e) {
   message = "创徏目录操作出错";
}
return txt;
}

/**
* 多��目录创徏
* @param folderPath 准备要在本��目录下创建新目录的目录�\�?例如 c:myf
* @param paths 无限�U�目录参敎ͼ�各��目录以单数线区分例如 a|b|c
* @return �q�回创徏文�g后的路径
*/
public String createFolders(String folderPath, String paths) {
String txts = folderPath;
try {
   String txt;
   txts = folderPath;
   StringTokenizer st = new StringTokenizer(paths, "|");
   for (int i = 0; st.hasMoreTokens(); i++) {
    txt = st.nextToken().trim();
    if (txts.lastIndexOf("/") != -1) {
     txts = createFolder(txts + txt);
    } else {
     txts = createFolder(txts + txt + "/");
    }
   }
} catch (Exception e) {
   message = "创徏目录操作出错�Q?;
}
return txts;
}

/**
* 新徏文�g
* @param filePathAndName 文本文�g完整�l�对路径及文件名
* @param fileContent 文本文�g内容
* @return
*/
public void createFile(String filePathAndName, String fileContent) {

try {
   String filePath = filePathAndName;
   filePath = filePath.toString();
   File myFilePath = new File(filePath);
   if (!myFilePath.exists()) {
    myFilePath.createNewFile();
   }
   FileWriter resultFile = new FileWriter(myFilePath);
   PrintWriter myFile = new PrintWriter(resultFile);
   String strContent = fileContent;
   myFile.println(strContent);
   myFile.close();
   resultFile.close();
} catch (Exception e) {
   message = "创徏文�g操作出错";
}
}

/**
* 有编码方式的文�g创徏
* @param filePathAndName 文本文�g完整�l�对路径及文件名
* @param fileContent 文本文�g内容
* @param encoding �~�码方式例如 GBK 或�?UTF-8
* @return
*/
public void createFile(String filePathAndName, String fileContent,
String encoding) {

try {
   String filePath = filePathAndName;
   filePath = filePath.toString();
   File myFilePath = new File(filePath);
   if (!myFilePath.exists()) {
    myFilePath.createNewFile();
   }
   PrintWriter myFile = new PrintWriter(myFilePath, encoding);
   String strContent = fileContent;
   myFile.println(strContent);
   myFile.close();
} catch (Exception e) {
   message = "创徏文�g操作出错";
}
}

/**
* 删除文�g
* @param filePathAndName 文本文�g完整�l�对路径及文件名
* @return Boolean 成功删除�q�回true遭遇异常�q�回false
*/
public boolean delFile(String filePathAndName) {
     boolean bea = false;
        try {
            String filePath = filePathAndName;
            File myDelFile = new File(filePath);
            if(myDelFile.exists()){
             myDelFile.delete();
             bea = true;
            }else{
             bea = false;
             message = (filePathAndName+"删除文�g操作出错");
            }
        }
        catch (Exception e) {
            message = e.toString();
        }
        return bea;
    }

/**
* 删除文�g�?br> * @param folderPath 文�g夹完整绝对�\�?br> * @return
*/
public void delFolder(String folderPath) {
try {
   delAllFile(folderPath); //删除完里面所有内�?br>   String filePath = folderPath;
   filePath = filePath.toString();
   java.io.File myFilePath = new java.io.File(filePath);
   myFilePath.delete(); //删除�I�文件夹
} catch (Exception e) {
   message = ("删除文�g�Ҏ��作出�?);
}
}

/**
* 删除指定文�g夹下所有文�?br> * @param path 文�g夹完整绝对�\�?br> * @return
* @return
*/
public boolean delAllFile(String path) {
boolean bea = false;
File file = new File(path);
if (!file.exists()) {
   return bea;
}
if (!file.isDirectory()) {
   return bea;
}
String[] tempList = file.list();
File temp = null;
for (int i = 0; i < tempList.length; i++) {
   if (path.endsWith(File.separator)) {
    temp = new File(path + tempList[i]);
   } else {
    temp = new File(path + File.separator + tempList[i]);
   }
   if (temp.isFile()) {
    temp.delete();
   }
   if (temp.isDirectory()) {
    delAllFile(path + "/" + tempList[i]);//先删除文件夹里面的文�?br>    delFolder(path + "/" + tempList[i]);//再删除空文�g�?br>    bea = true;
   }
}
return bea;
}

/**
* 复制单个文�g
* @param oldPathFile 准备复制的文件源
* @param newPathFile 拯��到新�l�对路径带文件名
* @return
*/
public void copyFile(String oldPathFile, String newPathFile) {
try {
   int bytesum = 0;
   int byteread = 0;
   File oldfile = new File(oldPathFile);
   if (oldfile.exists()) { //文�g存在�?br>    InputStream inStream = new FileInputStream(oldPathFile); //��d��原文�?br>    FileOutputStream fs = new FileOutputStream(newPathFile);
    byte[] buffer = new byte[1444];
    while ((byteread = inStream.read(buffer)) != -1) {
     bytesum += byteread; //字节�?文�g大小
     System.out.println(bytesum);
     fs.write(buffer, 0, byteread);
    }
    inStream.close();
   }
} catch (Exception e) {
   message = ("复制单个文�g操作出错");
}
}

/**
* 复制整个文�g夹的内容
* @param oldPath 准备拯��的目�?br> * @param newPath 指定�l�对路径的新目录
* @return
*/
public Boolean copyFolder(String oldPath, String newPath) {
try {
   new File(newPath).mkdirs(); //如果文�g夹不存在则徏立新文�g�?br>   File a = new File(oldPath);
   String[] file = a.list();
   File temp = null;
   for (int i = 0; i < file.length; i++) {
    if (oldPath.endsWith(File.separator)) {
     temp = new File(oldPath + file[i]);
    } else {
     temp = new File(oldPath + File.separator + file[i]);
    }
    if (temp.isFile()) {
     FileInputStream input = new FileInputStream(temp);
     FileOutputStream output = new FileOutputStream(newPath
       + "/" + (temp.getName()).toString());
     byte[] b = new byte[1024 * 5];
     int len;
     while ((len = input.read(b)) != -1) {
      output.write(b, 0, len);
     }
     output.flush();
     output.close();
     input.close();
    }
    if (temp.isDirectory()) {//如果是子文�g�?br>     copyFolder(oldPath + "/" + file[i], newPath + "/" + file[i]);
    }
   }
   return true;
} catch (Exception e) {
   message = "复制整个文�g夹内�Ҏ��作出�?;
   return false;
}
}

/**
* �U�d��文�g
* @param oldPath
* @param newPath
* @return
*/
public void moveFile(String oldPath, String newPath) {
copyFile(oldPath, newPath);
delFile(oldPath);
}

/**
* �U�d��目录
* @param oldPath
* @param newPath
* @return
*/
public void moveFolder(String oldPath, String newPath) {
copyFolder(oldPath, newPath);
delFolder(oldPath);
}

public String getMessage() {
return this.message;
}

public static void main(String[] args) throws Exception {
FileOperate fo = new FileOperate();
String newPath = "e://aaa";
// System.out.println(newPath);
String oldPath = "http://14.1.1.101//bbb";
fo.copyFolder(oldPath, newPath);
// fo.delFolder("c://dola");
// FileOperate.renamePath("d://Audio", "不备�?);

}
}

齐函 2007-04-03 13:55 发表评论

Start javame !

齐函 — Sat, 17 Mar 2007 03:43:00 GMT

package ..........................;

import...........................;

public Writeme{

public static void main(String[] arg){
     String message = "";
      isreadme() && iswriteme()�Q?br />                     message = "Very Good!!"�Q?br />                                  isreadme() || iswriteme()�Q?br />                                                 ( isreadme() �Q?br />                                                             message = "WHY? !iswriteme()"�Q?br />                                                                             message = "Read javame"�Q��?�Q?br />                                                                                              message = "Read javame"�Q�    �?br />
    System.out.println(message);
         }

private boolean isreadme(){
   if(看了javame){
           return true;
         }else{
           return false;
         }
}

private boolean iswriteme(){
  if(留言javame){
           return true;
         }else{
           return false;
         }
}
}

齐函 2007-03-17 11:43 发表评论

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滚动�Ҏ��大全

Start javame !