java執行Linux命令

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();
         }
     }

 

參數 cmd 為Linux命令。每次只能執行一條命令。

1. Java Runtime.exec()注意事項

• 永遠要在調用waitFor()方法之前讀取數據流
• 永遠要先從標准錯誤流中讀取，然后再讀取標准輸出流

      2.最好的執行系統命令的方法就是寫個bat文件或是shell腳本。

參考資料：

注意事項參考：

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腳本參考：

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