利用Java调用可执行命令实例

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package test;


/**
 * Add one sentence class summary here.
 * Add class description here.
 *
 * @author lxx
 * @version 1.0, 2004-11-16
 */
public class TestCmd {
    public TestCmd(){}
   /* public  void main(String args[]){
        try {
          Process process = Runtime.getRuntime().exec("cmd.exe  /c  start  http://www.csdn.net");  //登录网站
          Process process = Runtime.getRuntime().exec("cmd.exe  /c  start  ping 10.144.98.100");  //调用Ping命令
        }catch (Exception  e)
        {
            e.printStackTrace();
            } 
       
      }
    }  */

//在项目下建立一个名为hello的文件夹
    public static void main(String[] args) {
        System.out.println(System.getProperty("user.dir"));
        createFolder("hello");
      }

     private static void createFolder(String folderName) {
       String temp = System.getProperty("user.dir") + java.io.File.separator+ folderName;
       java.io.File f = new java.io.File(temp);
       f.mkdirs();
     }

 }

在Java程序中获取当前运行程序的路径

import java.io.*;

public class Test {

       public static void main(String[] args) {

              File directory  = new File(".");

              try {

                     File newPath = new File(directory.getCanonicalPath()+"NewFolder");

                     newPath.mkdir();

              }catch(Exception exp)

              {

                     exp.printStackTrace();

              }

       }

}

//File directory       = new File(".");

//directory.getCanonicalPath();取得当前路径



在Jsp页面中调用Ping命令---PingIP.jsp
<%@ page language="java" contentType="text/html; charset=gb2312"  import="java.io.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Ping IP测试页面</title>
</head>

<body>
<div align="center">
  <h2>Ping IP测试页面</h2>
</div>

<% 
   Runtime  runtime  =  Runtime.getRuntime(); 
   Process  process  =null; 
   String  line=null; 
   InputStream  is  =null; 
   InputStreamReader  isr=null; 
   BufferedReader  br  =null; 
   String  ip="www.sina.com.cn";  //待Ping的地址
    try 
   { 
       process  =runtime.exec("ping  "+ip); 
       is  =  process.getInputStream(); 
       isr=new  InputStreamReader(is); 
       br  =new  BufferedReader(isr); 
       out.println("<pre>"); 
       while(  (line  =  br.readLine())  !=  null  ) 
       { 
           out.println(line); 
           out.flush(); 
       } 
       out.println("</pre>"); 
       is.close(); 
       isr.close(); 
       br.close(); 
   } 
   catch(IOException  e  ) 
   { 
       out.println(e); 
       runtime.exit(1); 
   } 
%> 

</body>
</html>

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