JAVA 调用命令并输出

public class test10 {

/**
* @param args
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
Process p = Runtime.getRuntime().exec("ping 127.0.0.1/t");
InputStream is = p.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
String line;
while((line = reader.readLine())!= null){
System.out.println(line);
}
p.waitFor();
is.close();
reader.close();
p.destroy();

System.out.println("end");
}

}

package com.why.RunTime;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class TestRunTime {
public static void main(String[] args) {
//windows
// String cmd = "F:\apache-tomcat-6.0.20.exe";
// String cmd = "D:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE F:\test.doc";
// String cmd = "cmd.exe /c start F:\test.doc";
String cmd = "ping www.baidu.com";

//linux
// String cmd = "./fork_wait";
// String cmd = "ls -l";
// String[] cmd=new String[3];
// cmd[0]="/bin/sh";
// cmd[1]="-c";
// cmd[2]="ls -l ./";
Runtime run = Runtime.getRuntime();//返回与当前 Java 应用程序相关的运行时对象
try {
Process p = run.exec(cmd);// 启动另一个进程来执行命令
BufferedInputStream in = new BufferedInputStream(p.getInputStream());
BufferedReader inBr = new BufferedReader(new InputStreamReader(in));
String lineStr;
while ((lineStr = inBr.readLine()) != null)
//获得命令执行后在控制台的输出信息
System.out.println(lineStr);// 打印输出信息
//检查命令是否执行失败。
if (p.waitFor() != 0) {
if (p.exitValue() == 1)//p.exitValue()==0表示正常结束，1：非正常结束
System.err.println("命令执行失败!");
}
inBr.close();
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}