xml：
1 <RelativeLayout 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 android:paddingBottom="@dimen/activity_vertical_margin" 6 android:paddingLeft="@dimen/activity_horizontal_margin" 7 android:paddingRight="@dimen/activity_horizontal_margin" 8 android:paddingTop="@dimen/activity_vertical_margin" 9 tools:context="com.zzw.request.MainActivity" > 10 11 <EditText 12 android:id="@+id/username" 13 android:layout_width="match_parent" 14 android:layout_height="wrap_content" 15 android:hint="请输入用户名" /> 16 17 <EditText 18 android:id="@+id/password" 19 android:layout_width="match_parent" 20 android:layout_height="wrap_content" 21 android:layout_below="@id/username" 22 android:hint="输入密码" /> 23 24 <Button 25 android:id="@+id/get" 26 android:layout_width="match_parent" 27 android:layout_height="wrap_content" 28 android:layout_below="@id/password" 29 android:onClick="getClient" 30 android:text="get请求" /> 31 32 <Button 33 android:id="@+id/post" 34 android:layout_width="match_parent" 35 android:layout_height="wrap_content" 36 android:layout_below="@id/get" 37 android:onClick="postClient" 38 android:text="post请求" /> 39 40 </RelativeLayout>
java代码：
1 package com.zzw.httpClient; 2 3 import java.io.ByteArrayOutputStream; 4 import java.io.IOException; 5 import java.io.InputStream; 6 import java.util.ArrayList; 7 import java.util.List; 8 9 import org.apache.http.HttpEntity; 10 import org.apache.http.HttpResponse; 11 import org.apache.http.NameValuePair; 12 import org.apache.http.client.ClientProtocolException; 13 import org.apache.http.client.HttpClient; 14 import org.apache.http.client.entity.UrlEncodedFormEntity; 15 import org.apache.http.client.methods.HttpGet; 16 import org.apache.http.client.methods.HttpPost; 17 import org.apache.http.impl.client.DefaultHttpClient; 18 import org.apache.http.impl.conn.DefaultClientConnection; 19 import org.apache.http.message.BasicNameValuePair; 20 21 import android.app.Activity; 22 import android.os.Bundle; 23 import android.view.Menu; 24 import android.view.MenuItem; 25 import android.view.View; 26 import android.widget.EditText; 27 import android.widget.Toast; 28 29 public class MainActivity extends Activity { 30 EditText username_et = null; 31 EditText passWord_et = null; 32 33 @Override 34 protected void onCreate(Bundle savedInstanceState) { 35 super.onCreate(savedInstanceState); 36 setContentView(R.layout.activity_main); 37 username_et = (EditText) findViewById(R.id.username); 38 passWord_et = (EditText) findViewById(R.id.password); 39 } 40 41 public void getClient(View view) { 42 new Thread(new Runnable() { 43 @Override 44 public void run() { 45 try { 46 // 1、获得一个client，相当于浏览器 47 HttpClient client = new DefaultHttpClient(); 48 // 2、定义一个get请求，并且封装参数 49 String data = "username=" + username_et.getText().toString() + "&password=" 50 + passWord_et.getText().toString(); 51 HttpGet get = new HttpGet("http://10.0.2.2:8080/baidu/LoginServelt?" + data); 52 // 3、用定义好的浏览器来请求一个地址 53 HttpResponse response = client.execute(get); 54 int status = response.getStatusLine().getStatusCode(); 55 if (status == 200) { 56 final String content = getStringFromStream(response.getEntity().getContent()); 57 runOnUiThread(new Runnable() { 58 @Override 59 public void run() { 60 Toast.makeText(MainActivity.this, "返回信息:" + content, 0).show(); 61 } 62 }); 63 64 } 65 } catch (ClientProtocolException e) { 66 // TODO Auto-generated catch block 67 e.printStackTrace(); 68 } catch (IOException e) { 69 // TODO Auto-generated catch block 70 e.printStackTrace(); 71 } 72 73 } 74 }).start(); 75 } 76 77 public void postClient(View view) { 78 new Thread(new Runnable() { 79 @Override 80 public void run() { 81 try { 82 // 1、获得client 83 HttpClient client = new DefaultHttpClient(); 84 // 2、获得POST请求及设置参数 85 HttpPost post = new HttpPost("http://10.0.2.2:8080/baidu/LoginServelt"); 86 List<NameValuePair> parameters = new ArrayList<NameValuePair>(); 87 NameValuePair nameuser = new BasicNameValuePair("username", username_et.getText().toString()); 88 NameValuePair passWord = new BasicNameValuePair("passWord", passWord_et.getText().toString()); 89 parameters.add(nameuser); 90 parameters.add(passWord); 91 92 HttpEntity entity = new UrlEncodedFormEntity(parameters, "UTF-8"); 93 post.setEntity(entity); 94 // 3、执行post请求 95 HttpResponse response = client.execute(post); 96 int status = response.getStatusLine().getStatusCode(); 97 if (status == 200) { 98 final String content = getStringFromStream(response.getEntity().getContent()); 99 runOnUiThread(new Runnable() { 100 101 @Override 102 public void run() { 103 Toast.makeText(MainActivity.this,"POST："+content,0).show(); 104 } 105 }); 106 107 108 } 109 } catch (ClientProtocolException e) { 110 // TODO Auto-generated catch block 111 e.printStackTrace(); 112 } catch (IOException e) { 113 // TODO Auto-generated catch block 114 e.printStackTrace(); 115 } 116 } 117 }).start(); 118 } 119 120 public String getStringFromStream(InputStream in) throws IOException { 121 byte[] buffer = new byte[1024]; 122 ByteArrayOutputStream byteArray = new ByteArrayOutputStream(); 123 int leng = 0; 124 while ((leng = in.read(buffer, 0, 1024)) != -1) { 125 byteArray.write(buffer); 126 } 127 String content = byteArray.toString(); 128 byteArray.close(); 129 return content; 130 } 131 }