Android使用HttpUriContion解析网络上请求的文件

package com.example.test2;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.webkit.WebView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

import com.example.adapter.MyBaseAdapter;
import com.example.good.DataNews;
import com.example.good.StringNews;
import com.google.gson.Gson;
/**
* 主界面使用httpurl连接网络接口，进行数据解析并展示，
* @author 浅议爱
* 点击item项跳转到webview
*
*/

public class MainActivity extends Activity {
//定义对象
private ListView mListView;
//定义接口
private String url_path="http://api.sina.cn/sinago/list.json?channel=hdpic_story&adid=4ad30dabe134695c3d7c3a65977d7e72&from=6042095012&chwm=12050_0001&imei=867064013906290&uid=802909da86d9f5fc&p=1";
//定义集合，接收解析的数据
private List<DataNews> list_news=new ArrayList<DataNews>();
//定义适配器
private MyBaseAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

//获取控件id
mListView=(ListView) findViewById(R.id.mylistview);

//定义方法，用来获取url中的数据
new Thread(){
public void run() {
try {
getinfo();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
};
}.start();
}

/**
* 该方法用来连接网络接口，
* 使用流读取json文件，并解析json文件
* 将解析的数据加载到listview上，并展示
* @throws IOException
*/
private void getinfo() throws IOException {
// TODO Auto-generated method stub
//设置url地址
URL url=new URL(url_path);
//或得HttpURLConnection对象
HttpURLConnection opConnection=(HttpURLConnection) url.openConnection();
//设置链接超时
opConnection.setConnectTimeout(5000);
//设置读取超时
opConnection.setReadTimeout(5000);
//设置请求方式
opConnection.setRequestMethod("GET");
//进行连接
opConnection.connect();
//判断是否请求成功
if (opConnection.getResponseCode()==200) {
//或得实体,得到输入流
InputStream in=opConnection.getInputStream();
BufferedReader br=new BufferedReader(new InputStreamReader(in));
String readline=null;
StringBuffer buffer=new StringBuffer();
while((readline=br.readLine())!=null){
buffer.append(readline);
}
String json=buffer.toString();
Log.i("json", json);
//使用gson解析获取到的值
Gson gson=new Gson();
StringNews good=gson.fromJson(json, StringNews.class);
//得到json数据
list_news=good.getData().getList();

runOnUiThread(new Runnable() {

@Override
public void run() {
// TODO Auto-generated method stub
//添加适配器
adapter=new MyBaseAdapter(getApplicationContext(),list_news);
mListView.setAdapter(adapter);
//设置item监听
mListView.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> parent,
View view, int position, long id) {
// TODO Auto-generated method stub
Intent it=new Intent(MainActivity.this,HomeActivity.class);
it.putExtra("news", list_news.get(position).getLink());
startActivity(it);
}
});
}
});
}
};
}