HttpClient--post

[java]代码库
package com.example.day06_httpclient_post;
 
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
 
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
 
import com.google.gson.Gson;
 
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
 
public class MainActivity extends Activity {
    String path = "http://v.juhe.cn/weixin/query";
    //key=b3edac6e41f3f3c84b855019e47b7ace
     
     
    Handler handler=new Handler(){
         
        public void handleMessage(android.os.Message msg) {
             
             
            Bean bean = (Bean) msg.obj;
             
            listView.setAdapter(new ArrayAdapter<Info>(MainActivity.this, android.R.layout.simple_list_item_1, bean.result.list));
             
        };
         
    };
 
 
    private ListView listView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         
        listView = (ListView) findViewById(R.id.listView);
    }
     
     
     
    public void button(View v){
         
         
         
        new Thread() {
 
            public void run() {
                 
                getData();
            };
 
        }.start();
         
         
         
         
    }
 
/**
 * 请求数据
 */
 
    protected void getData() {
 
         
        HttpClient client=new DefaultHttpClient();
        //通过posty方式请求,设置接口地址
        HttpPost httpPost=new HttpPost(path);
        //得到集合,用于添加参数
        List<NameValuePair> list=new ArrayList<>();
        //以键值对的形式设置传给服务器的参数
        list.add(new BasicNameValuePair("key", "b3edac6e41f3f3c84b855019e47b7ace"));
        try {
            //得到实体, 设置要传递的参数,  设置编码
            UrlEncodedFormEntity urlEncodedFormEntity=new UrlEncodedFormEntity(list, "utf-8");
            //设置传递的实体
            httpPost.setEntity(urlEncodedFormEntity);
            //执行请求.得到返回数据
            HttpResponse httpResponse = client.execute(httpPost);
            //得到响应码
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            //响应码等于200,请求成功,取出服务器响应的数据
            if(statusCode==200){
                //得到实体
                HttpEntity entity = httpResponse.getEntity();
                //实体转成字符串
                String string = EntityUtils.toString(entity);
                Log.d("logd", ""+string);   
////////////////////////////////////////////////////////////////                
                 
                Gson gson=new Gson();
                 
                Bean bean = gson.fromJson(string, Bean.class);
         
                Message msg=Message.obtain();
                 
                msg.obj=bean;
                handler.sendMessage(msg);
                 
            }else{
                 
                Toast.makeText(this, " 网络异常  ", 1).show();
                 
                 
                 
                 
                 
            }
             
             
             
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
         
         
    }
}
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