Google地图在JAVA Swing中 [英] Google Map in JAVA Swing

问题描述

这是我的代码。没有编译错误，但我没有得到期望的输出：地图没有出现。
我想在我的JPanel中打开Goog​​le静态地图，并且想将其保存在本地驱动器上。这是我正在使用的代码。请指导我出错的地方。

 尝试{
 String imageUrl = 
http：// maps.google.com/staticmap?center=40,26&zoom=1&size=150x112&maptype=satellite&key=ABQIAAAAgb5KEVTm54vkPcAkU9xOvBR30EG5jFWfUzfYJTWEkWk2p04CHxTGDNV791-cU95kOnweeZ0SsURYSA&format=jpg; 
 String destinationFile =image.jpg; 
 str = destinationFile; 
网址url =新网址（imageUrl）; 
 InputStream is = url.openStream（）; 
 OutputStream os = new FileOutputStream（destinationFile）; 
 
 byte [] b =新字节[2048]; 
 int长度; （（length = is.read（b））！= -1）{
 os.write（b，0，length）; 
 
 
} 
 
 is.close（）; 
 os.close（）; 
} catch（IOException e）{
 e.printStackTrace（）; 
 System.exit（1）; $（new ImageIcon（image.jpg））。getImage（）
 .getScaledInstance（630，600， ））; 
 
 
  

解决方案

尝试了这一点，它像一个魅力：

  import java.io.FileOutputStream; 
 import java.io.IOException; 
 import java.io.InputStream; 
 import java.io.OutputStream; 
 import java.net.URL; 
 
 import javax.swing.ImageIcon; 
 import javax.swing.JFrame; 
 import javax.swing.JLabel; 
 
 public class Snippet {
 public static void main（String [] args）throws IOException {
 JFrame test = new JFrame（Google Maps）; 
 
尝试{
 String imageUrl =http://maps.google.com/staticmap?center=40,26&zoom=1&size=150x112&maptype=satellite&key= ABQIAAAAgb5KEVTm54vkPcAkU9xOvBR30EG5jFWfUzfYJTWEkWk2p04CHxTGDNV791-cU95kOnweeZ0SsURYSA&安培;格式= JPG; 
 String destinationFile =image.jpg; 
 String str = destinationFile; 
网址url =新网址（imageUrl）; 
 InputStream is = url.openStream（）; 
 OutputStream os = new FileOutputStream（destinationFile）; 
 
 byte [] b =新字节[2048]; 
 int长度; （（length = is.read（b））！= -1）{
 os.write（b，0，length）; 
 
 
} 
 
 is.close（）; 
 os.close（）; 
} catch（IOException e）{
 e.printStackTrace（）; 
 System.exit（1）; （new ImageIcon（image.jpg））。getImage（）。getScaledInstance（630，600，
 java.jbabc.com） .awt.Image.SCALE_SMOOTH））））; 
 
 test.setVisible（true）; 
 test.pack（）; 
 
 
 $ b $ / code $ / pre 
 $ b $ p  lp2_1 实际上，如果你没有在你的面板上得到地图，这个控制可能是问题。
 
Here is my code. There are no compilation errors, but I am not getting desired output: the map is not appearing.
I want to open Google static map in my JPanel and also want to save it on my local drive. This is the code which I am using. Kindly guide where I am going wrong.
    try {
        String imageUrl =
                "http://maps.google.com/staticmap?center=40,26&zoom=1&size=150x112&maptype=satellite&key=ABQIAAAAgb5KEVTm54vkPcAkU9xOvBR30EG5jFWfUzfYJTWEkWk2p04CHxTGDNV791-cU95kOnweeZ0SsURYSA&format=jpg";
        String destinationFile = "image.jpg";
        str = destinationFile;
        URL url = new URL(imageUrl);
        InputStream is = url.openStream();
        OutputStream os = new FileOutputStream(destinationFile);

        byte[] b = new byte[2048];
        int length;

        while ((length = is.read(b)) != -1) {
            os.write(b, 0, length);
        }

        is.close();
        os.close();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
    lp2_1.setIcon(new ImageIcon((new ImageIcon("image.jpg")).getImage()
            .getScaledInstance(630, 600, java.awt.Image.SCALE_SMOOTH)));

}

解决方案
I just tried out this, and it worked like a charm:
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class Snippet {
    public static void main(String[] args) throws IOException {
        JFrame test = new JFrame("Google Maps");

        try {
            String imageUrl = "http://maps.google.com/staticmap?center=40,26&zoom=1&size=150x112&maptype=satellite&key=ABQIAAAAgb5KEVTm54vkPcAkU9xOvBR30EG5jFWfUzfYJTWEkWk2p04CHxTGDNV791-cU95kOnweeZ0SsURYSA&format=jpg";
            String destinationFile = "image.jpg";
            String str = destinationFile;
            URL url = new URL(imageUrl);
            InputStream is = url.openStream();
            OutputStream os = new FileOutputStream(destinationFile);

            byte[] b = new byte[2048];
            int length;

            while ((length = is.read(b)) != -1) {
                os.write(b, 0, length);
            }

            is.close();
            os.close();
        } catch (IOException e) {
            e.printStackTrace();
            System.exit(1);
        }

        test.add(new JLabel(new ImageIcon((new ImageIcon("image.jpg")).getImage().getScaledInstance(630, 600,
                java.awt.Image.SCALE_SMOOTH))));

        test.setVisible(true);
        test.pack();

    }
}
Whats behind lp2_1 actually, if you dont get the map on you panel, this control could be the problem.

                        
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