android 学习随笔十二（网络：使用异步HttpClient框架）

使用异步HttpClient框架发送get、post请求

在https://github.com/ 搜索 asyn-http https://github.com/search?utf8=✓&q=asyn-http 下载 loopj/android-async-http

public class MainActivity extends Activity {

    Handler handler = new Handler(){

        public void handleMessage(android.os.Message msg) {

            Toast.makeText(MainActivity.this, (String)msg.obj, 0).show();

        }

    };

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    public void click1(View v){

        //获取用户输入的账号密码

        EditText et_name = (EditText) findViewById(R.id.et_name);

        EditText et_pass = (EditText) findViewById(R.id.et_pass);

        String name = et_name.getText().toString();

        String pass = et_pass.getText().toString();

        String path = "http://169.254.244.136/Web2/servlet/Login";

        //使用异步HttpClient发送get请求

        AsyncHttpClient client = new AsyncHttpClient();

        //把要提交的数据封装在rp对象中

        RequestParams rp = new RequestParams();

        rp.put("name", name);

        rp.put("pass", pass);

        //发送get请求

        client.get(path, rp, new MyHandler());

    }

    class MyHandler extends AsyncHttpResponseHandler{

        //请求成功时回调，相应码为200

        @Override

        public void onSuccess(int statusCode, Header[] headers,

                byte[] responseBody) {

            Toast.makeText(MainActivity.this, new String(responseBody), 0).show();

        }

        //请求失败时回调，相应码不为200

        @Override

        public void onFailure(int statusCode, Header[] headers,

                byte[] responseBody, Throwable error) {

            Toast.makeText(MainActivity.this, "请求失败", 0).show();

        }

    }

    public void click2(View v){

        //获取用户输入的账号密码

        EditText et_name = (EditText) findViewById(R.id.et_name);

        EditText et_pass = (EditText) findViewById(R.id.et_pass);

        String name = et_name.getText().toString();

        String pass = et_pass.getText().toString();

        String path = "http://169.254.244.136/Web2/servlet/Login";

        //使用异步HttpClient发送post请求

        AsyncHttpClient client = new AsyncHttpClient();

        //把要提交的数据封装在rp对象中

        RequestParams rp = new RequestParams();

        rp.put("name", name);

        rp.put("pass", pass);

        //发送get请求

        client.post(path, rp, new MyHandler());

    }

}