012_01HttpClient用户登录

  1 package com.example.day12_01login;
  2 
  3 import java.io.InputStream;
  4 import java.net.URLEncoder;
  5 import java.util.ArrayList;
  6 import java.util.List;
  7 import org.apache.http.HttpEntity;
  8 import org.apache.http.HttpResponse;
  9 import org.apache.http.NameValuePair;
 10 import org.apache.http.client.HttpClient;
 11 import org.apache.http.client.entity.UrlEncodedFormEntity;
 12 import org.apache.http.client.methods.HttpGet;
 13 import org.apache.http.client.methods.HttpPost;
 14 import org.apache.http.impl.client.DefaultHttpClient;
 15 import org.apache.http.message.BasicNameValuePair;
 16 import com.cskaoyan.webutils.WebUtils;
 17 import android.app.Activity;
 18 import android.os.Bundle;
 19 import android.os.Handler;
 20 import android.os.Message;
 21 import android.view.View;
 22 import android.widget.EditText;
 23 import android.widget.Toast;
 24 
 25 public class MainActivity extends Activity {
 26 
 27     @Override
 28     protected void onCreate(Bundle savedInstanceState) {
 29         super.onCreate(savedInstanceState);
 30         setContentView(R.layout.activity_main);
 31     }
 32 
 33     Handler hanlder = new Handler(){
 34         @Override
 35         public void handleMessage(Message msg) {
 36             // TODO Auto-generated method stub
 37             super.handleMessage(msg);
 38             
 39             switch (msg.what) {
 40             case 1:
 41                 Toast.makeText(MainActivity.this, (String)msg.obj, 1).show();
 42                 break;
 43             case 2:
 44                 Toast.makeText(MainActivity.this, (String)msg.obj, 0).show();
 45                 break;
 46             default:
 47                 break;
 48             }
 49         }
 50     };
 51     
 52     
 53     //http client 的get请求
 54     public void login(View v){    
 55         EditText et_username = (EditText) findViewById(R.id.et_uername);
 56         EditText et_password = (EditText) findViewById(R.id.et_password);
 57         
 58         final String username= et_username.getText().toString();
 59         final String password= et_password.getText().toString();
 60         //http://localhost/LoginDemo/servlet/Login
 61         //发请求的线程
 62         Thread thread = new Thread(){
 63              public void run() {
 64                 String path = "http://192.168.3.30/LoginDemo/servlet/Login?username="+URLEncoder.encode(username)+"&password="+password;
 65                 HttpClient httpClient =null;
 66                 try {
 67                     
 68                      httpClient = new DefaultHttpClient();
 69                     HttpGet httpget= new HttpGet(path);
 70                     
 71                     HttpResponse httpResponse =httpClient.execute(httpget);
 72                     
 73                     //conn.getResponseCode()==200
 74                     if(httpResponse.getStatusLine().getStatusCode()==200){
 75                         InputStream  is=httpResponse.getEntity().getContent();                        
 76                         String text = WebUtils.gettextFromInputStream(is, null);
 77                         Message msg = hanlder.obtainMessage();
 78                         msg.what=1;
 79                         msg.obj=text;
 80                         hanlder.sendMessage(msg);    
 81                     }
 82                     else {            
 83                         Message msg = hanlder.obtainMessage();
 84                         msg.what=2;
 85                         msg.obj="连接服务器失败";
 86                         hanlder.sendMessage(msg);                        
 87                     }        
 88                 } catch (Exception e) {
 89                     // TODO Auto-generated catch block
 90                     e.printStackTrace();
 91                 }
 92                 finally{                    
 93                     if (httpClient!=null) {
 94                         httpClient.getConnectionManager().shutdown();     
 95                     }
 96                 }
 97                 
 98             };
 99         };
100         thread.start();    
101     }
102     
103     //http client Post 请求实现
104     public void login2(View v){
105         
106         EditText et_username = (EditText) findViewById(R.id.et_uername);
107         EditText et_password = (EditText) findViewById(R.id.et_password);
108         
109         final String username= et_username.getText().toString();
110         final String password= et_password.getText().toString();
111         
112         //http://localhost/LoginDemo/servlet/Login
113         //发请求的线程
114         Thread thread = new Thread(){    
115             public void run() {
116                 String path = "http://192.168.3.39/LoginDemo/servlet/Login";
117                      //data = username=%E7%8E%8B%E9%81%93&password=123456
118                 String data = "username="+URLEncoder.encode(username)+"&password="+password;
119                 HttpClient httpClient = null;
120                 try {
121                     httpClient = new DefaultHttpClient();
122                     HttpPost   httpPost     = new HttpPost(path);
123                     //HttpEntity httpEntity = new StringEntity(s);
124                     List<NameValuePair> parameters = new ArrayList<NameValuePair>();
125                     
126                     NameValuePair namevp= new BasicNameValuePair("username",username );                    
127                     parameters.add(namevp);
128                     NameValuePair namevp2= new BasicNameValuePair("password",password );
129                     parameters.add(namevp2);
130                     HttpEntity httpEntity = new  UrlEncodedFormEntity(parameters,"utf-8");
131                     httpPost.setEntity(httpEntity);
132                     
133                     HttpResponse httpResponse =httpClient.execute(httpPost);
134                     if(httpResponse.getStatusLine().getStatusCode()==200){                    
135                         InputStream  is= httpResponse.getEntity().getContent();
136                         String text = WebUtils.gettextFromInputStream(is, null);
137                         is.close();
138                         Message msg = hanlder.obtainMessage();
139                         msg.what=1;
140                         msg.obj=text;
141                         hanlder.sendMessage(msg);    
142                     }
143                     else {            
144                         Message msg = hanlder.obtainMessage();
145                         msg.what=2;
146                         msg.obj="连接服务器失败";
147                         hanlder.sendMessage(msg);                        
148                     }                
149                 } catch (Exception e) {
150                     // TODO Auto-generated catch block
151                     e.printStackTrace();
152                 }
153                 finally{                    
154                     if (httpClient!=null) {
155                         httpClient.getConnectionManager().shutdown();     
156                     }
157                 }    
158             };
159         };
160         thread.start();    
161     } 
162 }

 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:layout_height="match_parent"
 5     tools:context="com.example.day12_01login.MainActivity"
 6     android:orientation="vertical" >
 7 
 8    
 9     <EditText
10         android:id="@+id/et_uername"
11         android:layout_width="fill_parent"
12         android:layout_height="wrap_content" 
13          />
14     <EditText
15         android:id="@+id/et_password"
16         android:layout_width="fill_parent"
17         android:layout_height="wrap_content" 
18          />
19     
20     <RelativeLayout
21          android:layout_width="fill_parent"
22          android:layout_height="wrap_content" 
23          >
24         <CheckBox 
25          android:id="@+id/cb_remeber"
26          android:layout_width="wrap_content"
27          android:layout_height="wrap_content" 
28          android:layout_alignParentLeft="true"
29         />
30         <Button
31         android:id="@+id/bt_login"      
32         android:layout_width="wrap_content"
33          android:layout_height="wrap_content"  
34          android:layout_alignParentRight="true"
35          android:onClick="login"
36                   android:text="get login"
37         />
38         
39     </RelativeLayout>
40  
41        <RelativeLayout
42          android:layout_width="fill_parent"
43          android:layout_height="wrap_content" 
44          >
45         <CheckBox 
46          android:id="@+id/cb_remeber2"
47          android:layout_width="wrap_content"
48          android:layout_height="wrap_content" 
49          android:layout_alignParentLeft="true"
50         />
51         <Button
52         android:id="@+id/bt_login2"      
53         android:layout_width="wrap_content"
54          android:layout_height="wrap_content"  
55          android:layout_alignParentRight="true"
56          android:onClick="login2"
57          android:text="post login"
58         />
59         
60     </RelativeLayout>
61 
62          <Button
63         android:id="@+id/bt_upload"      
64         android:layout_width="wrap_content"
65          android:layout_height="wrap_content"  
66          android:layout_alignParentRight="true"
67          android:onClick="upload"
68                   android:text="uploadfile"
69         />
70 </LinearLayout>