Android訪問php取回json資料

PHP代碼============================

$array = array(      'username'=>'楊鑄',      'password'=>'123456',      'user_id'=>1    );       echo json_encode($array);

Java代碼============================

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("使用者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();    }    }

運行結果===================================

其中http://10.0.2.2為Android訪問本機url的ip地址。對應電腦上測試的http://127.0.0.1

另外執行代碼時會拋出異常PHP100.com

java.net.SocketException: Permission denied

此為應用訪問網路的許可權不足 在AndroidManifest.xml中，需要進行如下配置：

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

就加在

</manifest>

之前就好了

然後測試通過。