HttpUrlConnection网络请求

import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.webkit.WebView;import android.widget.Button;import android.widget.TextView;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;public class WebViewActivity extends AppCompatActivity {    WebView webView;    Button httpBtn;    TextView sucess;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_web_view);        webView = (WebView) findViewById(R.id.webView);        //webView.loadUrl("http://www.baidu.com");        sucess = (TextView) findViewById(R.id.sucess);        httpBtn = (Button) findViewById(R.id.button);        httpBtn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                new Thread(new Runnable() {                    @Override                    public void run() {                        HttpUrlConnectionGet();                    }                }).start();            }        });    }    public void HttpUrlConnectionGet(){        HttpURLConnection uRLConnection = null;        InputStream is;        StringBuilder sb = new StringBuilder();        try {            URL url = new URL("http://apis.baidu.com/txapi/naowan/naowan");            uRLConnection = (HttpURLConnection) url.openConnection();            uRLConnection.setConnectTimeout(5*1000);            uRLConnection.setReadTimeout(5*1000);            uRLConnection.setRequestProperty("apikey","7f52de784d67f3c53c1c1d6cfdb2e563");            uRLConnection.connect();            if (uRLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {                is = uRLConnection.getInputStream();                byte[] bytes = new byte[1024];                int i = 0;                while ((i = is.read(bytes)) != -1 ) {                    sb.append(new String(bytes,0,i,"utf-8"));                }                is.close();            }        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        } finally {            if (uRLConnection != null) {                uRLConnection.disconnect();            }        }        Message message = handler.obtainMessage(1,sb.toString());        handler.sendMessage(message);    }    Handler handler = new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            if (msg != null && msg.what == 1) {                String str = (String) msg.obj;                webView.getSettings().setDefaultTextEncodingName("utf-8");                webView.getSettings().setJavaScriptEnabled(true);                webView.loadDataWithBaseURL(null,str,"txet/html","utf-8",null);                sucess.setText("请求成功");            }        }    };}