php代码

$array = array(

  'username'=>'杨铸',

  'password'=>'123456',

  'user_id'=>);

echo json_encode($array);

[代码] java代码

private void startUrlCheck(String username,String password)

{

    HttpClient client = new DefaultHttpClient();

    StringBuilder builder = new StringBuilder();

    HttpGet myget = new HttpGet("http://10.0.2.2/Android/index.php");

    try {

        HttpResponse response = client.execute(myget);

        BufferedReader reader = new BufferedReader(new InputStreamReader(

        response.getEntity().getContent()));

        for (String s = reader.readLine(); s != null; s = reader.readLine()) {

            builder.append(s);

        }

        JSONObject jsonObject = new JSONObject(builder.toString());

        String re_username = jsonObject.getString("username");

        String re_password = jsonObject.getString("password");

        int re_user_id = jsonObject.getInt("user_id");

        setTitle("用户id_"+re_user_id);

        Log.v("url response", "true="+re_username);

        Log.v("url response", "true="+re_password);

    } catch (Exception e) {

        Log.v("url response", "false");

        e.printStackTrace();

    }

}

[代码] 运行说明

view sourceprint?

其中http://10.0.2.2为Android访问本机url的ip地址。对应电脑上测试的http://127.0.0. 

另外执行代码时会抛出异常

java.net.SocketException: Permission denied

此为应用访问网络的权限不足 在AndroidManifest.xml中，需要进行如下配置：

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

就加在

之前就好了

然后测试通过。