YouTube 的谷歌数据 API
我正在尝试运行 Google Data API 附带的示例程序。 我在以下行中收到运行时错误
YouTubeService myService = new YouTubeService("gdataSample-YouTube-1");
错误如下：
run:
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:532)
at YouTubeReadonlyClient.main(YouTubeReadonlyClient.java:713)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 4 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
我尝试了 Google Data API 版本 1.35.0 和 1.35.1，并且在两种情况下都收到相同的错误。
I'm trying to run the sample program, which comes with Google Data API. I get a runtime error at following line
YouTubeService myService = new YouTubeService("gdataSample-YouTube-1");
The error is the following:
run:
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:532)
at YouTubeReadonlyClient.main(YouTubeReadonlyClient.java:713)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 4 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
I tried both Google Data API versions 1.35.0 and 1.35.1, and I get the same error in both cases.
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看起来您的类路径中没有集合库。
它位于 zip 文件的
gdata/java/deps目录中。 将google-collect-1.0-rc1.jar文件包含在您的类路径中，应该没问题。 （您可能还需要jsr305.jar- 我不确定。）Looks like you don't have the collections library in your class path.
It's in the
gdata/java/depsdirectory in the zip file. Include thegoogle-collect-1.0-rc1.jarfile in your classpath and you should be fine. (You may also needjsr305.jar- I'm not sure.)三个小步骤：
http://www.docjar.com/jar_detail/google-collect -1.0-rc1.jar.html
Three little steps:
http://www.docjar.com/jar_detail/google-collect-1.0-rc1.jar.html