java.lang.NoClassDefoundError：org/apache/poi/ss/usermodel/extendedcolor

Question

    XSSFCellStyle estiloFecha = workbook.createCellStyle();
    estiloFecha.cloneStyleFrom(estiloNormal);
    estiloFecha.setDataFormat(workbook.getCreationHelper().createDataFormat().getFormat("dd/MM/yyyy hh:mm"));

org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/poi/ss/usermodel/ExtendedColor
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:859)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:754)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:399)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:354)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:185)
net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:159)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:264)
org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)
org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.wrapper.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:81)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.ui.logout.LogoutFilter.doFilter(LogoutFilter.java:108)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:217)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:193)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148)
org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)

有人帮忙吗？

Answer 1

将一个评论提升为一个答案--您有不匹配的POI JAR。Apache POI有几个不同的JAR，覆盖不同的项目组件。正如POI常见问题解答中所解释的，这些必须都来自同一个版本！不支持在不同版本之间混合JAR，并且会出现如下错误

快速修复-删除所有Apache POI JAR，只添加最新版本的。

如果您无法确定实际使用的是什么JAR，请使用此FAQ条目中给出的代码通过类加载器报告使用了哪些JAR。然后，移除旧版本，这样您只能得到一个版本中的一组一致的POI JAR