http://java.sun.com/jsp/jstl/core 报错

1、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 application at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorH

3、at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:410)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