android http同步请求，android同步请求

android http同步请求，android同步请求

1、界面

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:orientation="vertical"
 5     android:layout_height="match_parent"
 6     tools:context=".MainActivity" >
 7 
 8     <EditText
 9         android:id="@+id/et_username"
10         android:layout_width="match_parent"
11         android:layout_height="wrap_content"
12         android:hint="请输入用户名"
13         android:text="张三"
14          />
15   
16 
17     <EditText
18         android:id="@+id/et_password"
19         android:layout_width="match_parent"
20         android:layout_height="wrap_content"
21         android:hint="请输入密码"
22         android:inputType="textPassword" />
23 
24     <Button
25         android:onClick="myGetData"
26         android:id="@+id/button1"
27         android:layout_width="wrap_content"
28         android:layout_height="wrap_content"
29         android:text="登陆" />
30 
31 </LinearLayout>

2、MainActivity代码，用来响应button代码

 1 package com.example.getdata;
 2 
 3 import java.net.HttpURLConnection;
 4 import java.net.MalformedURLException;
 5 import java.net.URL;
 6 
 7 import com.example.getdata.service.LoginService;
 8 
 9 import android.os.Bundle;
10 import android.os.Handler;
11 import android.os.Message;
12 import android.app.Activity;
13 import android.view.Menu;
14 import android.view.View;
15 import android.widget.EditText;
16 import android.widget.Toast;
17 
18 public class MainActivity extends Activity {
19 
20     private EditText et_username;
21     private EditText et_password;
22     /*private Handler handler = new Handler(){
23 
24         @Override
25         public void handleMessage(android.os.Message msg) {
26             // TODO Auto-generated method stub
27             
28         }
29         
30     };*/
31     @Override
32     protected void onCreate(Bundle savedInstanceState) {
33         super.onCreate(savedInstanceState);
34         setContentView(R.layout.activity_main);
35         et_username = (EditText)findViewById(R.id.et_username);
36         et_password = (EditText)findViewById(R.id.et_password);
37     }
38 
39 
40     public void myGetData(View view){
41         final String username = et_username.getText().toString().trim();
42         final String password = et_password.getText().toString().trim();
43         System.out.println("username:" + username);
44         System.out.println("password:" + password);
45         new Thread(){
46             public void run(){
47                 //final String result = LoginService.loginByGet(username, password);
48                 //final String result = LoginService.loginByPost(username, password);
49                 //final String result = LoginService.loginByClientGet(username, password);
50                 final String result = LoginService.loginByClientPost(username, password);
51                 if(result != null){
52                     runOnUiThread(new Runnable(){
53                         @Override
54                         public void run() {
55                             // TODO Auto-generated method stub
56                             Toast.makeText(MainActivity.this, result, 0).show();
57                         }
58                         
59                     });
60                 }else{
61                     runOnUiThread(new Runnable(){
62                         @Override
63                         public void run() {
64                             // TODO Auto-generated method stub
65                             Toast.makeText(MainActivity.this, "请求不成功!", 0).show();
66                         }
67                         
68                     });
69                 }
70             };
71         }.start();
72     }
73     
74 }

3、http请求同步代码

  1 package com.example.getdata.service;
  2 
  3 import java.io.IOException;
  4 import java.io.InputStream;
  5 import java.io.OutputStream;
  6 import java.io.UnsupportedEncodingException;
  7 import java.net.HttpURLCo