java执行Linux命令

 1 public class StreamGobbler extends Thread {   2        3     InputStream is;   4     String type;   5    6     public StreamGobbler(InputStream is, String type) {   7         this.is = is;   8         this.type = type;   9     }  10   11     public void run() {  12         try {  13             InputStreamReader isr = new InputStreamReader(is);  14             BufferedReader br = new BufferedReader(isr);  15             String line = null;  16             while ((line = br.readLine()) != null) {  17                 if (type.equals("Error")) {  18                     System.out.PRintln("Error   :" + line);  19                 } else {  20                     System.out.println("Debug:" + line);  21                 }  22             }  23         } catch (IOException ioe) {  24             ioe.printStackTrace();  25         }  26     }  27 }  

 1   private void shell(String cmd) 2       { 3           String[] cmds = { "/bin/sh", "-c", cmd }; 4           Process process; 5    6           try 7           { 8               process = Runtime.getRuntime().exec(cmds); 9   10              StreamGobbler errorGobbler = new StreamGobbler(process.getErrorStream(), "Error");11              StreamGobbler outputGobbler = new StreamGobbler(process.getInputStream(), "Output");12              errorGobbler.start();13              outputGobbler.start();14              try15              {16                  process.waitFor();17              }18              catch (InterruptedException e)19              {20                  e.printStackTrace();21              }22          }23          catch (IOException e)24          {25              e.printStackTrace();26          }27      }

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

• 永远要在调用waitFor()方法之前读取数据流
• 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。

参考资料：

注意事项参考：

http://blog.csdn.net/flying881114/article/details/6272472

http://blog.csdn.net/westwin/archive/2005/04/22/358377.aspx

http://blog.csdn.net/moreorless/archive/2009/05/15/4182883.aspx

shell脚本参考：

http://blog.csdn.net/HEYUTAO007/archive/2010/06/30/5705499.aspx