Java Web编程中使用JSTL注意c标签URI引用

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使用标签是要注意属性uri值，正确写法<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

应该依据jstl包下的c.tld中的uri为准。

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>这种写法会报如下异常：

org.apache.jasper.JasperException: /WEB-INF/jsp/messageList.jsp (line: 19, column: 2) According to TLD or attribute directive in tag file, attribute items does not accept any expressionsorg.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:408)org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:149)org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1240)org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:875)org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)org.apache.jasper.compiler.Node$Root.accept(Node.java:475)org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1795)org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:217)org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)org.apache.jasper.compiler.Compiler.compile(Compiler.java:341)org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)javax.servlet.http.HttpServlet.service(HttpServlet.java:729)org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1181)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:779)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

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