用httpurlconnection时当要outputstream时中断连接，这是为什么

[baidu_36150288]

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        input=(EditText)this.findViewById(R.id.input);
        output=(TextView)this.findViewById(R.id.output);
        send=(Button) this.findViewById(R.id.send);

        send.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                final String Output=input.getText().toString().trim();
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        String path="http://192.168.11.254:8080";
                        
                        try {
                            URL url=new URL(path);
                            //打开http连接
                            HttpURLConnection conn= (HttpURLConnection) url.openConnection();

                            conn.setDoInput(true);
                            conn.setDoOutput(false);
                            conn.setRequestMethod("POST");
                          //  conn.setRequestMethod("GET");
                            conn.setConnectTimeout(1000*30);//连接超时时间
                            conn.setReadTimeout(1000*30);//读取数据的超时时间
                            conn.setUseCaches(false);
//                            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
//                            conn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接
//                            conn.setRequestProperty("Charset", "UTF-8");
//                            conn.setRequestProperty("Content-type", "application/x-java-serialized-object");
                              conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
                            conn.connect();
                            //对服务器端读取或写入数据
                            OutputStream outStrm=conn.getOutputStream();
                            //获取响应数据
                            ObjectOutputStream outputStream=new ObjectOutputStream(outStrm);
                            outputStream.writeObject(Output);
                            int code=conn.getResponseCode();
                            String sCurrentLine="";
                            String sTotalString="";
                            if(code==200){
                                InputStream os=conn.getInputStream();
                                BufferedReader reader=new BufferedReader(new InputStreamReader(os));
                                while((sCurrentLine=reader.readLine())!=null){
                                    if(sCurrentLine.length()>0){
                                        sTotalString=sTotalString+sCurrentLine.trim();
                                     
                                    }
                                }
                                final String finalLine = sTotalString;
                                runOnUiThread(new Runnable() {
                                    @Override
                                    public void run() {
                                        output.setText("内容:"+ finalLine);
                                        Toast.makeText(MainActivity.this,"try!!!",Toast.LENGTH_SHORT).show();
                                    }
                                });
                            }else{
                                Toast.makeText(MainActivity.this,"fail!",Toast.LENGTH_LONG).show();
                            }

                            //System.out.println("result"+result);
                            conn.disconnect();//关闭连接

                        } catch (MalformedURLException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }


                    }
                }).start();

            }
        });
    }

}