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();
		}
		
		
	}
}