本文实例讲述了java执行Linux命令的方法。分享给大家供大家参考。具体实现方法如下：

复制代码 代码如下:

public class StreamGobbler extends Thread {

InputStream is;

String type;

public StreamGobbler(InputStream is, String type) {

this.is = is;

this.type = type;

}

public void run() {

try {

InputStreamReader isr = new InputStreamReader(is);

BufferedReader br = new BufferedReader(isr);

String line = null;

while ((line = br.readLine()) != null) {

if (type.equals("Error")) {

System.out.println("Error :" + line);

} else {

System.out.println("Debug:" + line);

}

}

} catch (IOException ioe) {

ioe.printStackTrace();

}

}

}

private void shell(String cmd)

{

String[] cmds = { "/bin/sh", "-c", cmd };

Process process;

try

{

process = Runtime.getRuntime().exec(cmds);

StreamGobbler errorGobbler = new StreamGobbler(process.getErrorStream(), "Error");

StreamGobbler outputGobbler = new StreamGobbler(process.getInputStream(), "Output");

errorGobbler.start();

outputGobbler.start();

try

{

process.waitFor();

}

catch (InterruptedException e)

{

e.printStackTrace();

}

}

catch (IOException e)

{

e.printStackTrace();

}

}

其中参数 cmd 为Linux命令。每次只能执行一条命令。

1.Java Runtime.exec()注意事项：

① 永远要在调用waitFor()方法之前读取数据流

② 永远要先从标准错误流中读取，然后再读取标准输出流

2.最好的执行系统命令的方法就是写个bat文件或是shell脚本。

希望本文所述对大家的Java程序设计有所帮助。