java - 部署到 tomcat 5.5 时，我的 grails 项目中的 jar 没有被拾取

Question

我整天都在用我的应用程序运行 grails 测试运行应用程序，一切都很好。我输入“grails prod war”来获取 war ，并将其转储到我的 tomcat 安装的 webapps 文件夹中。现在我收到这样的消息:

11.11.2010 16:35:11 *ERROR* GrailsExceptionResolver: Executing action [index] of controller [ResumeController]  caused e
xception: java.lang.NoClassDefFoundError: Could not initialize class org.docx4j.jaxb.Context (GrailsExceptionResolver.ja
va, line 72)
org.codehaus.groovy.grails.web.servlet.mvc.exceptions.ControllerExecutionException: Executing action [index] of controll
er [ResumeController]  caused exception: java.lang.NoClassDefFoundError: Could not initialize class org.docx4j.jaxb.Cont
ext
        at org.jsecurity.web.servlet.JSecurityFilter.doFilterInternal(JSecurityFilter.java:382)
        at org.jsecurity.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:180)
        at java.lang.Thread.run(Unknown Source)
Caused by: org.codehaus.groovy.runtime.InvokerInvocationException: java.lang.NoClassDefFoundError: Could not initialize
class org.docx4j.jaxb.Context
        ... 3 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.docx4j.jaxb.Context
        at org.docx4j.openpackaging.contenttype.ContentTypeManager.parseContentTypesFile(ContentTypeManager.java:599)
        at org.docx4j.openpackaging.io.LoadFromZipNG.process(LoadFromZipNG.java:199)
        at org.docx4j.openpackaging.io.LoadFromZipNG.get(LoadFromZipNG.java:188)
        at org.docx4j.openpackaging.packages.OpcPackage.load(OpcPackage.java:188)
        at org.docx4j.openpackaging.packages.WordprocessingMLPackage.load(WordprocessingMLPackage.java:169)
        at com.iai.skillsdb.DocxHelpers.DocxParser.openDocx4j(DocxParser.java:70)
        at ResumeController$_closure8.doCall(ResumeController.groovy:164)
        at ResumeController$_closure8.doCall(ResumeController.groovy)
        at ResumeController.invokeMethod(ResumeController.groovy)
        at ResumeController$_closure1.doCall(ResumeController.groovy:41)
        at ResumeController$_closure1.doCall(ResumeController.groovy)
        ... 3 more

这是什么原因造成的？我的 WAR 中肯定有 docx4j jar，它也位于 web-inf lib 文件夹中。

Answer 1

您收到的是java.lang.NoClassDefFoundError，而不是java.lang.ClassNotFoundException。正在加载该类，但它所依赖的类(直接或通过另一个类间接)不存在。您很可能缺少 docx4j 需要作为依赖项的 jar。