android 学习随笔十二（网络：使用异步HttpClient框架）

Posted 2020-08-09

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());
    }
    
}