org.apache.jasper.JasperException错误

org.apache.jasper.JasperException: /WEB-INF/view/welcome.jsp(2,0) The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
	org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
	org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
	org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:90)
	org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:339)
	org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:372)
	org.apache.jasper.compiler.Parser.parseDirective(Parser.java:475)
	org.apache.jasper.compiler.Parser.parseElements(Parser.java:1539)
	org.apache.jasper.compiler.Parser.parse(Parser.java:126)
	org.apache.jasper.compiler.ParserController.doParse(ParserController.java:220)
	org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:203)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
	org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)