mydownload.java

来自「多多功能的j2me,适合脑筋不同的思考」· Java 代码 · 共 72 行

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;



        public class MYDownLoad  extends MIDlet 
         { 
                private ImageCanvas canvas; 
                private Display display;
                URL url;
                 
                public MYDownLoad() { 
                        display=Display.getDisplay(this); 
                } 
                
                protected void startApp() throws MIDletStateChangeException 
                { 
                
                     hh dd=new hh();
                      dd.download("http://maps.google.com/staticmap?center=40.714728,-73.998672&zoom=10&size=100x100&maptype=mobile&markers=40.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc&key=ABQIAAAAqlTTJ4Ny7T_pddq_A48EUBQQn3cEn1zafMCOudPcqITPO7mT3RQoPaNhfuofDdJW8yR1i__nq50WhQ","11");
                    // canvas = new ImageCanvas();
                    // display.setCurrent(canvas); 
                
                }
                
                protected void pauseApp() { 
                } 
                
                protected void destroyApp(boolean arg0) throws MIDletStateChangeException { 
                } 
                
                public class ImageCanvas extends Canvas { 
                
                public void paint(Graphics g){ 
                try{ 
                    Image image = Image.createImage("/11.png"); 
                    g.drawImage(image, 0, 0, Graphics.TOP|Graphics.LEFT); 
                }catch(Exception e){ 
                    e.printStackTrace(); 
                }
                }
                } 
                
                class hh {
                	 public void download(String one,String name){
                		  try {
                			url=new URL(one);
                			InputStream fi=url.openStream();
                			OutputStream op=new FileOutputStream("C:\\workspace\\HelloWorld\\verified\\classes\\"+name+".png");
                			int length=0;
                			byte[] bb=new byte[1024];
                			while((length=fi.read(bb, 0, 1024) )!=-1){
                				op.write(bb, 0, length);
                			}
                		} catch (IOException e) {
                			// TODO Auto-generated catch block
                			e.printStackTrace();
                		}
                		 }
                }
                
}