HttpClient androidStudio中的基础使用

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modle的buil.gradle文件中android根标签下添加useLibrary 'org.apache.http.legacy'

/**
* httpClient-- apche 基金会维护的请求网络的工具;

工具类
*/

public class MainActivity extends AppCompatActivity {    public String urlString = "http://api.expoon.com/AppNews/getNewsList/type/1/p/1";    private TextView lv;    List<Tools.DataBean> list=new ArrayList<>();    Handler handler=new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            list= (List<Tools.DataBean>) msg.obj;            lv.setText(list.get(0).getNews_summary());        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lv = (TextView) findViewById(R.id.lv);        new Thread(){            @Override            public void run() {                super.run();                //得到httpclient对象                DefaultHttpClient client = new DefaultHttpClient();                //封装get请求                HttpGet hg=new HttpGet(urlString);                //获取返回的response                try {                    HttpResponse response = client.execute(hg);                    //获取状态码                    int statusCode = response.getStatusLine().getStatusCode();                    if(statusCode==200){                        //entiry 里面封装的数据;                        HttpEntity entity = response.getEntity();                        //这个result就是json字符串，剩下的就是解析工作了；                        String s = EntityUtils.toString(entity);                        Gson g=new Gson();                        Tools tools = g.fromJson(s, Tools.class);                        List<Tools.DataBean> data = tools.getData();                        Message msg=new Message();                        msg.obj=data;                        handler.sendMessage(msg);                    }else{                    }                } catch (IOException e) {                    e.printStackTrace();                }            }        }.start();    }}

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