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//java.io
---------------------------------------------------------------
 
/**
* Title: ÎļþµÄ¸÷ÖÖ²Ù×÷
* Copyright: Copyright (c) 2004
* Company: ¹ã¶« ÓÐÏÞ¹«Ë¾
* @author ÍøÂçÐÅÏ¢²¿ Çì·á
* @version 1.0
*/
 
package common;
 
import java.io.*;
 
public class FileOperate {
public FileOperate() {
}
 
/**
* н¨Ä¿Â¼
* @param folderPath String Èç c:/fqf
* @return boolean
*/
public void newFolder(String folderPath) {
try {
String filePath = folderPath;
filePath = filePath.toString();
java.io.File myFilePath = new java.io.File(filePath);
if (!myFilePath.exists()) {
myFilePath.mkdir();
}
}
catch (Exception e) {
System.out.println("н¨Ä¿Â¼²Ù×÷³ö´í");
e.printStackTrace();
}
}
 
/**
* н¨Îļþ
* @param filePathAndName String Îļþ·¾¶¼°Ãû³Æ Èçc:/fqf.txt
* @param fileContent String ÎļþÄÚÈÝ
* @return boolean
*/
public void newFile(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;


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ת×Ô http://blog.csdn.net/foamflower/archive/2009/10/29/4744862.aspx
ÏñÒÆ¶¯Íø¹ØÒ»Ñù£¬iisforwardÕâ¸öISAPI¹ýÂËÆ÷Ò²»á¶Ôrequest¶ÔÏó½øÐÐÔÙ°ü×°£¬¸½¼ÓһЩWLSÒªÓõÄÍ·ÐÅÏ¢¡£ÕâÖÖÇé¿öÏ£¬Ö±½ÓÓÃrequest.getRemoteAddr()
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WL-Proxy-Client-IP=211.161.1.239 ......

javaÎļþ·ÃÎÊFileÀ༰Æä¹ýÂË

import java.io.*;
class FileTest
{
 public static void main(String[] args) throws Exception
 {
  //File f=new File("1.txt");
  //f.createNewFile();
  //f.mkdir();
  //File f=new File("E:\\JavaLesson\\Lesson7\\1.txt");//ÔÚWindowsϵͳÏÂ,Óþø¶Ô ......

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String Óë StringBufferÇø±ð:
String×Ö·û´®¶ÔÏóÊDz»¿É±äµÄ£»StringBufferÊDZ䳤ºÍ¿ÉдµÄ¶¯Ì¬×Ö·ûÐòÁУ¬¿ÉÒÔ×Ô¶¯µØÔö¼Ó¿Õ¼ä¡£
Integer var = new Integer();//ÓÐÓï·¨´íÎó
Integer var = new Integer(2);//悦﵀
javaµÄVector³ÉÔ±ÊÇÒªÓÃelementAt(i)³ÉÔ±º¯ÊýÀ´»ñµÃµÄ£¬²»ÄÜÓÃve[i]µÃµ½¡£
Vector::public Enumeration& ......

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import java.util.LinkedList;  
//µ¥Ïò¶ÓÁР 
public class Queue {  
    public Queue() {  
    }  
    private LinkedList list = new LinkedList();  
    public void pu ......

Java´Óweb·þÎñÆ÷ÏÂÔØÎļþµ½±¾µØ

/*´Ó·þÎñÆ÷ÖÐÏÂÔØÎļþµ½±¾µØ*/
/*url:Îļþ´æ·ÅÔÚ·þÎñÆ÷µÄµØÖ·£»target:Òª±£´æµÄ·¾¶*/
 
public String DownloadFile(String url,String target){
URLConnection con=null;
URL theUrl=null;
try {
theUrl=new URL(url);//½¨Á¢µØÖ·
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