android 中socket通信

Question

private Button send;
private TextView rec;
private static Socket client;
private boolean result=false;
private int a=0;
private PrintWriter write;
private static BufferedReader read;
public static int ac=0;
private InputStream input;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rec=(TextView)findViewById(R.id.textView1);;
Thread aa=new Thread(new Runnable() {

            @Override
            public void run() {
                // TODO Auto-generated method stub
                 try {
                     //服务器的ip的地址 和端口号
                        client=new Socket(InetAddress.getByName("192.168.1.101"),4312);
                        read=new BufferedReader
                        (new InputStreamReader(client .getInputStream()));              
                        result=true;
                        a=1;                  
                        rec.setText("123");        
                     } 
                    catch(IOException e){ 
                        result=false;rec.setText("错误");
                    }   
                 finally{
                     a=1;
                 }
            }
        });
          aa.start();
          while(a==0);

                if(result){
                    String s ="";
                    try{                               
                    s = read.readLine();//执行到这一步就出错         
                     rec.setText("awq");                    

                    }
                    catch(Exception e){rec.setText("出现异常");}


    }
        每当客户端读取数据时就会出现异常，可以发送消息就是读不了怎么回事

Answer 1

你在那个run方法里看看能不能读出数据？另外把错误贴出来，同时你的代码在非UI线程里更新了UI，这肯定是会报错的