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<php

$link=mysql_connect("127.0.0.1","root","123456");

mysql_query("SET NAMES utf8");

mysql_select_db("test",$link);

$sql=mysql_query("select * from teacher ",$link);

while($row=mysql_fetch_assoc($sql))

$output[]=$row;

print(json_encode($output));

mysql_close();

>

package com.knight.android.test;//根据实际的工程需要，修改包的名称

 

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.util.ArrayList;

 

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.NameValuePair;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

 

import android.app.Activity;

import android.net.ParseException;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

 

public class AndroidTestActivity extends Activity {

    JSONArray jArray;

    String result = null;

    InputStream is = null;

    StringBuilder sb = null;

 

    @Override

    public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.main);

       Button b1 = (Button) findViewById(R.id.button1);

       b1.setOnClickListener(new Button.OnClickListener() {

           @Override

           public void onClick(View v) {

              // TODO Auto-generated method stub

              EditText tv = (EditText) findViewById(R.id.editView);

              ArrayList<NameValuePair> nameValuePairs = newArrayList<NameValuePair>();

              // http get

              try {

                  HttpClient httpclient = new DefaultHttpClient();

                  HttpGet httpget = new HttpGet(

                         "http://10.141.249.136/test.php");

                  HttpResponse response = httpclient.execute(httpget);

                  HttpEntity entity = response.getEntity();

                  is = entity.getContent();

              } catch (Exception e) {

                  Log.e("log_tag", "Error in http connection" + e.toString());

              }

              // convert response to string

              try {

                  BufferedReader reader = new BufferedReader(

                         new InputStreamReader(is, "iso-8859-1"), 8);

                  sb = new StringBuilder();

                  sb.append(reader.readLine() + "\n");

 

                  String line = "0";

                  while ((line = reader.readLine()) != null) {

                     sb.append(line + "\n");

                  }

                  is.close();

                  result = sb.toString();

              } catch (Exception e) {

                  Log.e("log_tag", "Error converting result " + e.toString());

              }

              // paring data

              int ct_id;

              String ct_name;

              try {

                  jArray = new JSONArray(result);

                  JSONObject json_data = null;

                  for (int i = 0; i < jArray.length(); i++) {

                     json_data = jArray.getJSONObject(i);

                     ct_id = json_data.getInt("id");

                     ct_name = json_data.getString("name");

                     tv.append(ct_name + " \n");

                  }

              } catch (JSONException e1) {

                  // Toast.makeText(getBaseContext(), "No City Found"

                  // ,Toast.LENGTH_LONG).show();

              } catch (ParseException e1) {

                  e1.printStackTrace();

              }

           }

       });

    }

}

 

 

<xml version="1.0" encoding="utf-8">

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="click" />

 

    <EditText

        android:id="@+id/editView"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="HI "

        android:textSize="30dip" />

 

</LinearLayout>

<xml version="1.0" encoding="utf-8">

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.knight.android.test"

    android:versionCode="1"

    android:versionName="1.0" >

    <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name" >

        <activity

            android:name=".AndroidTestActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

 

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

    

    <!-- 授权访问网络 -->

<uses-permission android:name="android.permission.INTERNET"/>

 

</manifest>

 

5. 运行结果如下图：

 

点击click以后，Android会向服务器发送一个Http Get请求，服务器从mysql中读取数据后，传送给Android客户端，客户端编码数据包，然后返回如下结果：