Question

我想从我的picasa相册中列出所有相册列表。这是代码。

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import com.google.gdata.client.photos.PicasawebService;
import com.google.gdata.data.photos.AlbumEntry;
import com.google.gdata.data.photos.UserFeed;
import com.google.gdata.util.AuthenticationException;
import com.google.gdata.util.ServiceException;


public class MyMain {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.print("hello");
        PicasawebService myService = new PicasawebService("exampleCo-exampleApp-1");
        try {
            myService.setUserCredentials("myMailAddress@gmail.com", "myPassWord");
        } catch (AuthenticationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        URL feedUrl=null;
        try {
            feedUrl = new URL("https://picasaweb.google.com/data/feed/api/user/myMailAddress?kind=album");
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        UserFeed myUserFeed=null;
        try {
            myUserFeed = myService.getFeed(feedUrl, UserFeed.class);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ServiceException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        for (AlbumEntry myAlbum : myUserFeed.getAlbumEntries()) {
            System.out.println(myAlbum.getTitle().getPlainText());
        }

    }

}

但是发生了异常：

线程“main”java.lang.NoClassDefFoundError中的
helloException：在MyMain.main（MyMain.java:20）的javax / mail / MessagingException导致 by：java.lang.ClassNotFoundException：javax.mail.MessagingException 在java.net.URLClassLoader $ 1.run（未知来源）at java.net.URLClassLoader $ 1.run（未知来源）at java.security.AccessController.doPrivileged（Native Method）at java.net.URLClassLoader.findClass（未知来源）at java.lang.ClassLoader.loadClass（未知来源）at sun.misc.Launcher $ AppClassLoader.loadClass（未知来源）at java.lang.ClassLoader.loadClass（未知来源）......另外1个

请帮忙。

Answer 1

添加mail.jar，activation.jar和additional.jar

Java Picasa API目录列表不起作用

1 个答案: