嗨,我在我的Web服务代码中遇到了以下异常情况,对此有何帮助？

Jun 28, 2012 8:49:46 PM com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException  
SEVERE: The exception contained within MappableContainerException could not be mapped to a response, re-throwing to the HTTP container  
java.lang.NoClassDefFoundError: Could not initialize class com.ibm.toro.utility.tenantconfig.DBManager  
    at com.ibm.toro.utility.tenantconfig.TenantConfigDB.getAllHotwords(TenantConfigDB.java:88)  
    at com.ibm.toro.utility.tenantconfig.TenantConfigDB.getAnalysisConf(TenantConfigDB.java:99)  
    at com.ibm.toro.utility.tenantconfig.GetTenantConfig.getTenantConfig(GetTenantConfig.java:58)  
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)  
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)  
    at java.lang.reflect.Method.invoke(Unknown Source)  
    at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)  
    at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)  
    at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)  
    at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)  
    at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)  
    at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)  
    at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)  
    at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)  
    at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)  
    at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)  
    at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)  
    at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)  

解决方法:

看起来您在类路径上缺少某些内容.您需要修复的异常是TenantConfigDB.getAllHotwords()中的NoClassDefFoundException.如果基础代码抛出了不可映射到响应的内容(在本例中为NoClassDefFoundException),则MappableContainerException只是Jersey使用的包装异常.似乎无法加载DBManager类的某些依赖项,因为它不在类路径中.