android中使用URL讀取網路資源

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URL(Uniform Resource Locator)對象代表統一資源定位器，它是指向互連網“資源”的指標。

使用URL讀取網路資源：

import java.io.InputStream;import java.net.URL;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Bundle;import android.os.Handler;import android.widget.ImageView;public class MainActivity extends Activity {    ImageView show;    Bitmap bitmap;    Handler handler = new Handler() {        public void handleMessage(android.os.Message msg) {            if (msg.what == 0x123) {                System.out.println("handlerMsg");                show.setImageBitmap(bitmap);            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        show = (ImageView) findViewById(R.id.show);        new Thread() {            public void run() {                try {                    // System.out.println(url.toString());                    System.out.println(666);                    //網址應該是圖片的下載連結；                    URL url = new URL("http://dl.image.so.com/d?imgurl=http%3A%2F%2Fimg.tupianzj.com%2Fuploads%2Fallimg%2F160522%2F9-160522114S1.jpg&purl=http%3A%2F%2Fwww.tupianzj.com%2Fgaoxiao%2Fbiaoqing%2F20160522%2F50570_7.html&key=72e4826817");                    System.out.println(url.toString());                    InputStream is = url.openStream();                    bitmap = BitmapFactory.decodeStream(is);                    handler.sendEmptyMessage(0x123);                    is.close();                } catch (Exception e) {                    e.printStackTrace();                }            };        }.start();    }}

使用了URL訪問了圖片資源並進行了顯示，其中URL應是相應圖片資源的下載連結地址。

 

android中使用URL讀取網路資源