欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  移动技术

安卓中使用HttpURLConnection连接网络简单示例 --Android网络编程

程序员文章站 2024-01-03 09:07:34
MainActivity.java: package thonlon.example.cn.httpurlconnectionpro;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import and ......

MainActivity.java:

package thonlon.example.cn.httpurlconnectionpro;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class MainActivity extends AppCompatActivity {

  private Button btn_req;
  private TextView tv_res;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
  }

  private void initView() {
    btn_req = (Button) findViewById(R.id.btn_req);
    tv_res = (TextView) findViewById(R.id.tv_res);
  }

  public void onClick(View view) {
    sendRequestHttpURLConnection();
  }

  public void sendRequestHttpURLConnection() {
    new Thread(new Runnable() {
      @Override
      public void run() {
        String urlStr = "https://www.baidu.com";
        HttpURLConnection conn = null;
        BufferedReader reader = null;
        try {
        URL url = new URL(urlStr);
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setConnectTimeout(8000);
        conn.setReadTimeout(8000);
        InputStream is = conn.getInputStream();
        reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder response = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
        response.append(line);
        }
        showResponse(response.toString());
        } catch (MalformedURLException e) {
          e.printStackTrace();
        } catch (IOException e) {
          e.printStackTrace();
        } finally {
          if (reader != null) {
          try {
            reader.close();
          } catch (IOException e) {
            e.printStackTrace();
          }
        }
        if (conn != null) {
          conn.disconnect();
        }
      }
     }
  }).start();
}

  private void showResponse(final String response) {
    runOnUiThread(new Runnable() {
    @Override
    public void run() {
      tv_res.setText(response);
    }
  });
}
}

安卓中使用HttpURLConnection连接网络简单示例 --Android网络编程

 

上一篇:

下一篇: