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javayoutube-apigdata-api

Build a gdata Java program

I am stuck at the beginning of the development. I have a simple test program listed below. I followed http://code.google.com/apis/gdata/articles/eclipse.html to setup Eclipse.

import com.google.gdata.client.*;
import com.google.gdata.client.youtube.*;
import com.google.gdata.data.*;
import com.google.gdata.data.geo.impl.*;
import com.google.gdata.data.media.*;
import com.google.gdata.data.media.mediarss.*;
import com.google.gdata.data.youtube.*;
import com.google.gdata.data.extensions.*;
import com.google.gdata.util.*;
import java.io.IOException;
import java.io.File;
import java.net.URL;

public class Test {
  public static void main(String[] args) {
    YouTubeService service = new YouTubeService(
          "xxx.apps.googleusercontent.com", 
          "AAA");
    }
  }
}

When I run java Test in console, I got exception:

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gdata/client/youtube/YouTubeService
at Test.main(Test.java:18)
Caused by: java.lang.ClassNotFoundException: com.google.gdata.client.youtube.YouTubeService
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 1 more

When I run in Eclipse, I got the exception:

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/collect/Maps
at com.google.gdata.wireformats.AltRegistry.<init>(AltRegistry.java:118)
at com.google.gdata.wireformats.AltRegistry.<init>(AltRegistry.java:100)
at com.google.gdata.client.Service.<clinit>(Service.java:555)
at Test.main(Test.java:18)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 4 more

What's wrong here? How to fix this?

Solution

  • You seem to be missing google-collections API which has been deprecated and is now replaced by guava for your second error (running in eclipse). For the first error you have forgotten to add the required jars to you class path (gdata-youtube-2.0.jar). use

    java -cp ...gdata-youtube-2.0.jar... your.java.Program

    where ... symbolizes other required libraries.