关于java的收集

获取java目录的路径

http://ahomeeye.iteye.com/blog/896534

?

?java正则表达式教程

http://www.java3z.com/cwbwebhome/article/article8/Regex/Java.Regex.Tutorial.html#reg9_3

java读取Map集合的方法

http://yuexiaowen.iteye.com/blog/504929

关于获取地址的问题

<% String basePath = request.getScheme() + "s://"   + request.getServerName() + ":" + request.getServerPort()   + request.getContextPath();%>

?

关于生成文件夹的代码(带文件夹验证)：

?

?

import java.io.*;public class Demo{  public static void main( String[] args)  {    File   dirFile;    File   tempFile;    boolean bFile;    String   sFileName;        bFile = false;    try    {        dirFile = new File("E://test");        bFile   = dirFile.exists();//验证文件夹是否存在        if( bFile == true )        {          System.out.println("The folder exists.");        }        else        {          System.out.println("The folder do not exist,now trying to create a one...");          bFile = dirFile.mkdir();//开始创建文件夹          if( bFile == true )          {            System.out.println("Create successfully!");          }          else          {            System.out.println("Disable to make the folder,please check the disk is full or not.");            System.exit(1);          }        }