JSTL报错:org.apache.jasper.JasperException

一、问题描述

一运行tomcat8，然后访问页面，由于页面中使用了JSTL标签，然后报错如下:

org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this applicationat org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:55)at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:277)at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:75)at org.apache.jasper.compiler.TagLibraryInfoImpl.generateTldResourcePath(TagLibraryInfoImpl.java:250)at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:125)at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:421)at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:479)at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1435)at org.apache.jasper.compiler.Parser.parse(Parser.java:139)at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:227)at org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:201)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:358)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:338)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:325)at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363)at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:170)at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:312)at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1325)at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1069)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1008)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:870)at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.bufferAndPostProcess(ContentBufferingFilter.java:169)at org.sitemesh.webapp.contentfilter.ContentBufferingFilter.doFilter(ContentBufferingFilter.java:126)at org.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:120)at org.sitemesh.config.ConfigurableSiteMeshFilter.doFilter(ConfigurableSiteMeshFilter.java:163)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1533)at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1489)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:748)

二、解决方法

出现这种错误的原因就是由于没有引用jstl和standard引起的，在项目中引入就行了:

<!-- JSTL --><dependency>  <groupId>javax.servlet</groupId>  <artifactId>jstl</artifactId>  <version>1.2</version>  </dependency><!-- standard --><dependency><groupId>taglibs</groupId><artifactId>standard</artifactId><version>1.1.2</version></dependency>

此时还有检查下tomcat/lib目录下是否有jstl.jar,standard.jar包，如果没有的话，还得复制jar包到该目录下。