解决process.waitFor()阻塞

private static void  exeBat(){
		Process p = null; 
		
		try {  
			 p = Runtime.getRuntime().exec("tts.bat");  
			 //获取进程的标准输入流  
			 final InputStream is1 = p.getInputStream();   
			 //获取进城的错误流  
			 final InputStream is2 = p.getErrorStream();  
			 //启动两个线程，一个线程负责读标准输出流，另一个负责读标准错误流  
			 new Thread() {  
			    public void run() {  
			       BufferedReader br1 = new BufferedReader(new InputStreamReader(is1));  
			        try {  
			            String line1 = null;  
			            while ((line1 = br1.readLine()) != null) {  
			                  if (line1 != null){}  
			              }  
			        } catch (IOException e) {  
			             e.printStackTrace();  
			        }  
			        finally{  
			             try {  
			               is1.close();  
			             } catch (IOException e) {  
			                e.printStackTrace();  
			            }  
			          }  
			        }  
			     }.start();  
			                                
			   new Thread() {   
			      public void  run() {   
			       BufferedReader br2 = new  BufferedReader(new  InputStreamReader(is2));   
			          try {   
			             String line2 = null ;   
			             while ((line2 = br2.readLine()) !=  null ) {   
			                  if (line2 != null){}  
			             }   
			           } catch (IOException e) {   
			                 e.printStackTrace();  
			           }   
			          finally{  
			             try {  
			                 is2.close();  
			             } catch (IOException e) {  
			                 e.printStackTrace();  
			             }  
			           }  
			        }   
			      }.start();    
			                                
			      p.waitFor();  
			      p.destroy();   
			     System.out.println("tts退出==========================================");  
			    } catch (Exception e) {  
			         try{  
				          p.getErrorStream().close();  
				          p.getInputStream().close();  
				          p.getOutputStream().close();  
			           }catch(Exception ee){}  
			   }  
	}