[英]How to access google maps api in Java Application?
如何從Java應用程序訪問google maps API?
您可以使用Swing-WS ,JXMapViewer組件可用,並提供與JavaScript版本類似的功能。 但是,在提供的API之外訪問Google磁貼服務器仍然不合法:JavaScript和Flash。
打開了一個問題來跟蹤此請求: http : //code.google.com/p/gmaps-api-issues/issues/detail?id = 1396 。 它已獲批准,但誰知道什么時候可以使用。
客戶端Java的最佳選擇是Static Maps API 。 對於服務器端Java,答案很大程度上取決於您用於開發的框架。 話雖如此,Google Maps API已有詳細記錄 。
你可以使用swingx的Swing Labs,JXMapKit: http ://today.java.net/pub/a/today/2007/10/30/building-maps-into-swing-app-with-jxmapviewer.html
這很直截了當。 有關更多信息,請參閱網站。
JXMapKit mapView = new JXMapKit();
mapView.setDefaultProvider(DefaultProviders.OpenStreetMaps);
mapView.setDataProviderCreditShown(true);
add(mapView)
它看起來像這樣:
(來源: java.net )
看看上面文章中的源代碼,有三行代碼,您可以輕松查看地圖:
如果您只是尋找一個靜態地圖,您可以使用此代碼來使地圖工作:
import java.awt.BorderLayout;
public class GoogleMapsGui extends JFrame {
final Logger log = Logger.getLogger(GoogleMapsGui.class.getName());
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
GoogleMapsGui frame = new GoogleMapsGui();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public GoogleMapsGui() {
setTitle("Map");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 592, 352);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
JFrame test = new JFrame("Google Maps");
try {
// String latitude = "-25.9994652";
// String longitude = "28.3112051";
String location = JOptionPane
.showInputDialog(" please enter the desired loccation");// get
// the
// location
// for
// geo
// coding
Scanner sc = new Scanner(location);
Scanner sc2 = new Scanner(location);
String marker = "";
String path = JOptionPane
.showInputDialog("what is your destination?");
String zoom = JOptionPane
.showInputDialog("how far in do you want to zoom?\n"
+ "12(zoomed out) - 20 (zoomed in)");
String imageUrl = "https://maps.googleapis.com/maps/api/staticmap?";
while (sc.hasNext()) {// add location to imageUrl
imageUrl = imageUrl + sc.next();
}
marker = "&markers=color:red|";
while (sc2.hasNext()) {// add marker location to marker
marker = marker + sc2.next() + ",";
}
marker = marker.substring(0, marker.length() - 1);
imageUrl = imageUrl + "&size=620x620&scale=2&maptype=hybrid"
+ marker;
//
log.info("Generated url");
String destinationFile = "image.jpg";
// read the map image from Google
// then save it to a local file: image.jpg
//
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);
}
log.info("Created image.jpg");
is.close();
os.close();
sc.close();
sc2.close();
log.info("Closed util's");
} catch (IOException e) {
e.printStackTrace();
System.exit(1);
log.severe("Could not create image.jpg");
}// fin getting and storing image
ImageIcon imageIcon = new ImageIcon((new ImageIcon("image.jpg"))
.getImage().getScaledInstance(630, 600,
java.awt.Image.SCALE_SMOOTH));
contentPane.setLayout(null);
JLabel imgMap = new JLabel(imageIcon);
imgMap.setBounds(5, 5, 571, 308);
contentPane.add(imgMap);
}
}
還可以在這里查看Goolge靜態地圖API
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