警告: Could not create JarEntryRevision for [jar:file:/D:/Workspaces/eclipse-jee/.metadata/.plugins/<em>org</em>.eclipse.wst.server.core/tmp1/wtpwebapps/struts2/WEB-INF/lib/struts2-core-2.2.3.jar]!
<em>java</em>.<em>lang</em>.No
用dbutils连接的时候出现这个问题
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
<em>java</em>x.se
<em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: Lcn/weidiankeji/appApi/service/BaiqishiDecisionService;
at <em>java</em>.<em>lang</em>.Class.getDeclaredFields0(Native Method)
at <em>java</em>.<em>lang</em>.Class.privateGetDeclaredFields(Class.<em>java</em>:2...
<em>org</em>.spark_project.guava.util.concurrent.ExecutionError: <em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: <em>org</em>/codehaus/<em>commons</em>/compiler/UncheckedCompileException
at <em>org</em>.spark_project.guava.cache.LocalCache$Segment.get(LocalCache.<em>java</em>:2261)
at <em>org</em>.spark_project.guava.cach
It is a libraries incompatibility problem. Please, add a Hibernate version, pom.xml or a list of jars, a web-cotainer (Tomcat) or an application server, spring configuration files
这是一个库不兼容问题,请检查你的spri...
```
Servlet.service() for servlet [dispatcher] in context with path [/platform] threw exception [Filtered request failed.] with root cause
<em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: Could not initialize class com.platform.cache.J2CacheUtils
at com.platform.shiro.CluterShiroSessionDao.setShiroSession(CluterShiroSessionDao.<em>java</em>:57)
at com.platform.shiro.CluterShiroSessionDao.doCreate(CluterShiroSessionDao.<em>java</em>:23)
at <em>org</em>.<em>apache</em>.shiro.session.mgt.eis.AbstractSessionDAO.create(AbstractSessionDAO.<em>java</em>:116)
at <em>org</em>.<em>apache</em>.shiro.session.mgt.eis.CachingSessionDAO.create(CachingSessionDAO.<em>java</em>:184)
at <em>org</em>.<em>apache</em>.shiro.session.mgt.DefaultSessionManager.create(DefaultSessionManager.<em>java</em>:177)
at <em>org</em>.<em>apache</em>.shiro.session.mgt.DefaultSessionManager.doCreateSession(DefaultSessionManager.<em>java</em>:158)
at <em>org</em>.<em>apache</em>.shiro.session.mgt.AbstractValidatingSessionManager.createSession(AbstractValidatingSessionManager.<em>java</em>:136)
at <em>org</em>.<em>apache</em>.shiro.session.mgt.AbstractNativeSessionManager.start(AbstractNativeSessionManager.<em>java</em>:99)
at <em>org</em>.<em>apache</em>.shiro.mgt.SessionsSecurityManager.start(SessionsSecurityManager.<em>java</em>:152)
at <em>org</em>.<em>apache</em>.shiro.subject.support.DelegatingSubject.getSession(DelegatingSubject.<em>java</em>:336)
at <em>org</em>.<em>apache</em>.shiro.subject.support.DelegatingSubject.getSession(DelegatingSubject.<em>java</em>:312)
at <em>org</em>.<em>apache</em>.shiro.web.util.WebUtils.saveRequest(WebUtils.<em>java</em>:607)
at <em>org</em>.<em>apache</em>.shiro.web.filter.AccessControlFilter.saveRequest(AccessControlFilter.<em>java</em>:208)
at <em>org</em>.<em>apache</em>.shiro.web.filter.AccessControlFilter.saveRequestAndRedirectToLogin(AccessControlFilter.<em>java</em>:191)
at <em>org</em>.<em>apache</em>.shiro.web.filter.authc.FormAuthenticationFilter.onAccessDenied(FormAuthenticationFilter.<em>java</em>:168)
at <em>org</em>.<em>apache</em>.shiro.web.filter.AccessControlFilter.onAccessDenied(AccessControlFilter.<em>java</em>:133)
at <em>org</em>.<em>apache</em>.shiro.web.filter.AccessControlFilter.onPreHandle(AccessControlFilter.<em>java</em>:162)
at <em>org</em>.<em>apache</em>.shiro.web.filter.PathMatchingFilter.isFilterChainContinued(PathMatchingFilter.<em>java</em>:203)
at <em>org</em>.<em>apache</em>.shiro.web.filter.PathMatchingFilter.preHandle(PathMatchingFilter.<em>java</em>:178)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.<em>java</em>:131)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.<em>java</em>:125)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.<em>java</em>:66)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.<em>java</em>:449)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.<em>java</em>:365)
at <em>org</em>.<em>apache</em>.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.<em>java</em>:90)
at <em>org</em>.<em>apache</em>.shiro.subject.support.SubjectCallable.call(SubjectCallable.<em>java</em>:83)
at <em>org</em>.<em>apache</em>.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.<em>java</em>:383)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.<em>java</em>:362)
at <em>org</em>.<em>apache</em>.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.<em>java</em>:125)
at <em>org</em>.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.<em>java</em>:346)
at <em>org</em>.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.<em>java</em>:262)
at <em>org</em>.<em>apache</em>.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.<em>java</em>:241)
at <em>org</em>.<em>apache</em>.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.<em>java</em>:208)
at <em>org</em>.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.<em>java</em>:197)
at <em>org</em>.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.<em>java</em>:107)
at <em>org</em>.<em>apache</em>.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.<em>java</em>:241)
at <em>org</em>.<em>apache</em>.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.<em>java</em>:208)
at <em>org</em>.<em>apache</em>.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.<em>java</em>:220)
at <em>org</em>.<em>apache</em>.catalina.core.StandardContextValve.invoke(StandardContextValve.<em>java</em>:122)
at <em>org</em>.<em>apache</em>.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.<em>java</em>:505)
at <em>org</em>.<em>apache</em>.catalina.core.StandardHostValve.invoke(StandardHostValve.<em>java</em>:169)
at <em>org</em>.<em>apache</em>.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.<em>java</em>:103)
at <em>org</em>.<em>apache</em>.catalina.valves.AccessLogValve.invoke(AccessLogValve.<em>java</em>:956)
at <em>org</em>.<em>apache</em>.catalina.core.StandardEngineValve.invoke(StandardEngineValve.<em>java</em>:116)
at <em>org</em>.<em>apache</em>.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.<em>java</em>:436)
at <em>org</em>.<em>apache</em>.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.<em>java</em>:1078)
at <em>org</em>.<em>apache</em>.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.<em>java</em>:625)
at <em>org</em>.<em>apache</em>.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.<em>java</em>:316)
at <em>java</em>.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.<em>java</em>:1149)
at <em>java</em>.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.<em>java</em>:624)
at <em>org</em>.<em>apache</em>.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.<em>java</em>:61)
at <em>java</em>.<em>lang</em>.Thread.run(Thread.<em>java</em>:748)
```
1、项目依赖的jar包未全部导入；
如：<em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: Could not initialize class com.esms.common.util.XmlUtil，当你去查这个类的时候发现这个类是存在，之所以抱着个错是
因为在这个类里面的方法引用了其他jar包中的类的方法，而这个被引用的这个jar包刚好缺失，所以抛出这个错。
解决办法：一层
Exception in thread "main" <em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: <em>org</em>/<em>apache</em>/<em>commons</em>/logging/LogFactory
at <em>org</em>.springframework.context.support.AbstractApplicationContext.&lt;init&gt;(AbstractApplication...
首先我们来看一下文档中是如何定义的。<em>NoClassDefFoundError</em>Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a ...
搭建SSJ项目结构时遇到了一个异常，记录一下（排了好久）
<em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: <em>org</em>/springframework/util/ClassUtils
at <em>org</em>.springframework.test.context.junit4.SpringJUnit4ClassRunner.&lt;clinit&gt;(SpringJUnit4Clas...
<em>java</em>.<em>lang</em>.<em>NoClassDefFoundError</em>: <em>org</em>/hibernate/Session at <em>java</em>.<em>lang</em>.Class.getDeclaredConstructors0(Na
