private EditText et;    private TextView tv;    HttpClient client;        @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        et=(EditText) findViewById(R.id.et);        tv=(TextView) findViewById(R.id.tv);        client=new DefaultHttpClient();        findViewById(R.id.btn).setOnClickListener(new OnClickListener() {                        @Override            public void onClick(View v) {                readNet("http://localhost:8080/get",et.getText()+"");                            }        });    }            public void readNet(String url,String name){        new AsyncTask
     
      () {            @Override            protected String doInBackground(String... params) {                String urlString=params[0];                HttpPost post=new HttpPost(urlString);                try {                    HttpResponse response=client.execute(post);                    List
      
        list=new ArrayList
       
        ();                    list.add(new BasicNameValuePair("name", params[1]));                    post.setEntity(new UrlEncodedFormEntity(list));                    String v=EntityUtils.toString( response.getEntity());                    return v;                } catch (Exception e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }                return null;            }            @Override            protected void onPostExecute(String result) {                tv.setText(result);            }                    }.execute(url,name);    }
       
      
     

(ˉ(∞)ˉ) ：由于是使用表单的方式提交数据，所以应该用

List
    
      list=new ArrayList
     
      (); 键值对的方式。