调用外部程序的方法

if("calculator".equals(form.getAction())){ 

 System.out.println("-------------calculator---------------"); 

 String[] cmd = {"calc.exe"}; 

 Process pro; 

 try { 

 pro = Runtime.getRuntime().exec(cmd); 

 pro.waitFor(); 

 } catch (Exception e) { 

 System.out.println("调用外部程序出错！"); 

 } 

 return mapping.getInputForward(); 

 } 

 if("notepad".equals(form.getAction())){ 

 System.out.println("-------------notepad---------------"); 

 String[] cmd={"notepad.exe","c:/boot.ini"}; 

// String[] cmd = {"notepad.exe"}; 

 Process pro; 

 try { 

 pro = Runtime.getRuntime().exec(cmd); 

 // waitFor会使线程阻塞，只有外部程序退出后才会执行下面的语句 

 pro.waitFor(); 

 } catch (Exception e) { 

 System.out.println("调用外部程序出错！"); 

 } 

 return mapping.getInputForward(); 

 }