使用开源框架进行get，post提交

package com.example.aysnhttp;

import java.net.URLEncoder;

import org.apache.http.Header;

import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
    private EditText ed1;
    private EditText ed2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ed1 = (EditText) findViewById(R.id.et1);
        ed2 = (EditText) findViewById(R.id.et2);
        findViewById(R.id.btn_get).setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                String name = ed1.getText().toString();
                String pass = ed2.getText().toString();
                String path = "http://192.168.21.1:8080/ok/servlet/Login?username="
                        + URLEncoder.encode(name) + "&password=" + pass;
                AsyncHttpClient client = new AsyncHttpClient();
                client.get(path, new AsyncHttpResponseHandler() {

                    @Override
                    public void onSuccess(int statusCode, Header[] headers,
                            byte[] responseBody) {
                        // TODO Auto-generated method stub
                        String msg = new String(responseBody);
                        Toast.makeText(MainActivity.this, msg, 0).show();
                    }

                    @Override
                    public void onFailure(int statusCode, Header[] headers,
                            byte[] responseBody, Throwable error) {
                        // TODO Auto-generated method stub

                    }

                });
            }
        });
        findViewById(R.id.btn_post).setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                String name = ed1.getText().toString();
                String pass = ed2.getText().toString();
                String path = "http://192.168.21.1:8080/ok/servlet/Login";
                AsyncHttpClient client = new AsyncHttpClient();
                RequestParams params = new RequestParams();
                params.add("username", URLEncoder.encode(name));
                params.add("password", pass);
                client.post(path, params, new AsyncHttpResponseHandler() {
                    
                    @Override
                    public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
                        // TODO Auto-generated method stub
                        String msg = new String(responseBody);
                        Toast.makeText(MainActivity.this, msg, 0).show();
                        
                    }
                    
                    @Override
                    public void onFailure(int statusCode, Header[] headers,
                            byte[] responseBody, Throwable error) {
                        // TODO Auto-generated method stub
                        
                    }
                });
            }
        });
    }
}