在App Engine - Jersey中启动错误 [英] Start up error in App Engine - Jersey
本文介绍了在App Engine - Jersey中启动错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图在App Engine中使用Jersey进行原型开发。当我将应用程序部署到{app} .appspot.com时，我可以看到以下错误：
I am trying to prototype using Jersey in App Engine. When I deploy my application to {app}.appspot.com, I can see the following errors:
2013-08-06 08:19:52.749
com.sun.jersey.core.spi.component.ProviderFactory __getComponentProvider: The provider class, class com.sun.jersey.atom.rome.impl.provider.entity.AtomFeedProvider, could not be instantiated. Processing will continue but the class will not be utilized
java.lang.SecurityException: Unable to get members for class com.sun.jersey.atom.rome.impl.provider.entity.AtomFeedProvider
at com.google.appengine.runtime.Request.process-5fd4a6aad8a8feef(Request.java)
at java.lang.Class.getDeclaredMethods(Class.java:256)
at com.sun.jersey.core.reflection.MethodList.getAllDeclaredMethods(MethodList.java:70)
at com.sun.jersey.core.reflection.MethodList.<init>(MethodList.java:64)
at com.sun.jersey.core.spi.component.ComponentConstructor.getPostConstructMethods(ComponentConstructor.java:131)
at com.sun.jersey.core.spi.component.ComponentConstructor.<init>(ComponentConstructor.java:123)
at com.sun.jersey.core.spi.component.ProviderFactory.__getComponentProvider(ProviderFactory.java:165)
at com.sun.jersey.core.spi.component.ProviderFactory.getComponentProvider(ProviderFactory.java:137)
at com.sun.jersey.core.spi.component.ProviderServices.getComponent(ProviderServices.java:256)
at com.sun.jersey.core.spi.component.ProviderServices.getServices(ProviderServices.java:160)
at com.sun.jersey.core.spi.factory.MessageBodyFactory.initReaders(MessageBodyFactory.java:176)
at com.sun.jersey.core.spi.factory.MessageBodyFactory.init(MessageBodyFactory.java:162)
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1310)
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:168)
at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:774)
at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:770)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:770)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
at javax.servlet.GenericServlet.init(GenericServlet.java:212)
at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:263)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:435)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442)
at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
... 41 more
Caused by: java.lang.NoClassDefFoundError: com/sun/syndication/io/FeedException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2447)
... 41 more
Caused by: java.lang.ClassNotFoundException: com.sun.syndication.io.FeedException
at com.google.appengine.runtime.Request.process-5fd4a6aad8a8feef(Request.java)
... 41 more
以下ing是web.xml中的设置
The following is the settings in web.xml
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.feature.DisableWADL</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.tattva.service</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
以下jar包在我的Build路径中。
The following jars are in my Build path.
asm-3.1.jar
jaxb-api-2.2.4.jar
stax-api-1.0-2.jar
jackson-core-asl-1.7.1.jar
jackson-jaxrs-1.7.1.jar
jackson-mapper-asl-1.7.1.jar
jackson-xc-1.7.1.jar
jettison-1.1.jar
activation-1.1.jar
jaxb-impl-2.2.4-1.jar
jersey-client-1.8.jar
jersey-core-1.8.jar
jersey-json-1.8.jar
jersey-server-1.8.jar
任何有关错误的想法？
推荐答案
看起来您正在使用一些RSS实用程序来自罗马项目，但你的路上没有那个罐子。
It looks like you are using some of the RSS utilities from the Rome project, and yet you don't have that jar in your path.
我认为你可以得到这个jar： https://rometools.jira.com/wiki/display/ROME/Home
I think that you can get the jar at: https://rometools.jira.com/wiki/display/ROME/Home
这篇关于在App Engine - Jersey中启动错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
