调用我的应用程序的第一页时引发follwong异常
org.apache.jasper.JasperException: /WEB-INF/login.jsp(28,21) The function split must be used with a prefix when a default namespace is not specified org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40) org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407) org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148) org.apache.jasper.compiler.Validator$ValidateVisitor$1FVVisitor.visit(Validator.java:1478) org.apache.jasper.compiler.ELNode$Function.accept(ELNode.java:129) org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:200) org.apache.jasper.compiler.ELNode$Visitor.visit(ELNode.java:242) org.apache.jasper.compiler.ELNode$Root.accept(ELNode.java:56) org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:200) org.apache.jasper.compiler.Validator$ValidateVisitor.validateFunctions(Validator.java:1503) org.apache.jasper.compiler.Validator$ValidateVisitor.prepareExpression(Validator.java:1508) org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:724) org.apache.jasper.compiler.Node$ELExpression.accept(Node.java:935) org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2338) org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2388) org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:838) org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1507) org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2338) org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2388) org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2394) org.apache.jasper.compiler.Node$Root.accept(Node.java:489) org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2338) org.apache.jasper.compiler.Validator.validate(Validator.java:1737) org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:178) org.apache.jasper.compiler.Compiler.compile(Compiler.java:306) org.apache.jasper.compiler.Compiler.compile(Compiler.java:286) org.apache.jasper.compiler.Compiler.compile(Compiler.java:273) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317) org.apache.jasper.servlet.JspServlet._serviceJspFile(JspServlet.java:320) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238) org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262) org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1157) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:927) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:874) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:779) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:147) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:366) org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109) org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:167) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
login .jsp 在第28行有代码
login .jsp
26 <select id="tnm" name="tnm" > 27 <c:forEach items="${temp}" var="i"> 28 <option value='${i.split("#")[0]}'>${i.split("#")[1]}</option> 29 </c:forEach> 30 </select>
我无法识别为什么引发此异常。任何人都可以告诉我何时抛出此类异常。
此处使用的语法（使用参数调用非getter方法）仅在EL 2.2中受支持。您似乎没有针对支持Servlet 3.0 / JSP 2.2 / EL 2.2（Tomcat 7，Glassfish 3等）的容器，或者web.xml似乎未声明符合Servlet 3.0规范。在EL 2.2之前，foo()仅将语法识别为EL函数，并且应采用这种形式${prefix:functionName(arg1, arg2)}。这也是异常试图告诉您的内容。
web.xml
foo()
${prefix:functionName(arg1, arg2)}
如果您确实没有针对Servlet 3.0容器和/或无法更改web.xml遵循的Servlet 3.0，则需要使用JSTL fn:split()（是的，这是一个真正的EL函数）：
fn:split()
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> ... <c:set var="parts" value="${fn:split(i, '#')}" /> <option value='${parts[0]}'>${parts[1]}</option>
