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我目前有一个类Reporter.java，它使用JasperReports生成HTML报告。我有一个调用Reporter.report（）的简单Test.java，并且在指定的文件位置（我目前已将它设置为指向我的Tomcat项目的C：/路径）中正确生成了HTML文件。现在，我运行一个带有调用generateStatus.jsp的HTML页面的Tomcat服务器，该页面调用Reporter.report（）并抛出异常。在Tomcat上用JasperReports生成HTML页面
Jun 30, 2011 3:02:08 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/OATS] threw exception [javax.servlet.ServletException: java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/JasperCompileManager] with root cause
java.lang.ClassNotFoundException: net.sf.jasperreports.engine.JasperCompileManager
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
at com.home.oats.Reporter.report(Reporter.java:22)
at org.apache.jsp.generateStatus_jsp._jspService(generateStatus_jsp.java:58)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
线它在错误是
JasperReport jasperReport = JasperCompileManager.compileReport(jasper.getString(Constants.JRXML));
有什么建议？
谢谢你的时间！
我已经将它包含在我的项目中，但没有包含在WEB-INF/lib中。我尝试将其副本放入该文件夹，但异常仍然存在。 – Chandrew
事实上，我重新审视了这一点...是的，包括WEB-INF/lib中的所有依赖项修复了这个问题。 我碰到了生成的页面无法访问的问题，除非我刷新我的Eclipse项目，因为新生成的文件没有与项目同步。 – Chandrew