org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jstl/co

问题描述：

org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jstl/core_rt cannot be 

resolved in either web.xml or the jar files deployed with this application
	org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:51)
	org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
	org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:116)
	org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation

(TagLibraryInfoImpl.java:316)
	org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:149)
	org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:386)
	org.apache.jasper.compiler.Parser.parseDirective(Parser.java:450)
	org.apache.jasper.compiler.Parser.parseElements(Parser.java:1399)
	org.apache.jasper.compiler.Parser.parse(Parser.java:130)
	org.apache.jasper.compiler.ParserController.doParse(ParserController.java:255)
	org.apache.jasper.compiler.ParserController.parse(ParserController.java:103)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:185)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:709)
	org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:680)
	org.apache.jsp.index_jsp._jspService(index_jsp.java:56)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	com.filter.SubmitFilter.doFilter(SubmitFilter.java:33)
	com.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:23)

解决办法：
不同版本的JSTL标签具有不同的URI,so...
You need to get the right version of JSTL, they use different URIs.