例項原始碼1:利用Java呼叫可執行命令並取得其返回值

lin_zyang發表於2008-04-29
原始碼Java
/**
 * 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");  //登入網站
          Process process = Runtime.getRuntime().exec("cmd.exe  /c  start  ping 10.144.98.100");  //呼叫Ping命令
        }catch (Exception  e)
        {
            e.printStackTrace();
            }
      
      }
    }  */

//在專案下建立一個名為hello的資料夾
    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程式中獲取當前執行程式的路徑

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();取得當前路徑

在Jsp頁面中呼叫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測試頁面</title>
</head>

<body>
<div align="center">
  <h2>Ping IP測試頁面</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>

相關文章