jstl有关问题,JSP一直不能执行
日期：2014-05-18 浏览次数：20957 次
jstl问题,JSP一直不能执行
OS:win2003
JSP正常,数据库连接也正常.
jstl.jar和standard.jar分别放到/WEB-INF/lib和comcat/common/lib下面
JSP代码^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
<%@ taglib prefix= "c " uri= "http://java.sun.com/jstl/core " %>
<%@ page contentType= "text/html; charset=gb2312 " language= "java " %>
<html>
<head>
<title> JSTL: c:out的使用 </title>
</head>
<body bgcolor= "#FFFFFF ">
<hr>
<% session.setAttribute( "test_session ", "testValue_session ");%>
<hr> 获得session中的属性：
<c:out value= "${test_session} "/>
</body>
</html>
运行后错误提示
org.apache.jasper.JasperException: /c_out.jsp(11,0) According to TLD or attribute directive in tag file, attribute value does not accept any expressions
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:150)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:941)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:696)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Validator.validate(Validator.java:1475)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:214)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:495)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.30 logs.
------解决方案--------------------
改为
uri= "http://java.sun.com/jsp/jstl/core "
或者你看看你的web.xml有没有禁止了el
------解决方案--------------------
web.xml里面需要有core的映射
------解决方案--------------------
应用部署运行的时候出现JSP异常, 发生在使用JSTL库的时候: According to TLD or attribute directive in tag file, attribute value does not accept any expressions, 可能是因为使用了JSP2.0版本, 同时又没有使用JSTL core库的备用版本(RT库), 以下有两种处理方法:
1. 修改web.xml.
<web-app xmlns= "http://java.sun.com/xml/ns/j2ee " xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance " xsi:schemaLocation= "http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web
OS:win2003
JSP正常,数据库连接也正常.
jstl.jar和standard.jar分别放到/WEB-INF/lib和comcat/common/lib下面
JSP代码^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
<%@ taglib prefix= "c " uri= "http://java.sun.com/jstl/core " %>
<%@ page contentType= "text/html; charset=gb2312 " language= "java " %>
<html>
<head>
<title> JSTL: c:out的使用 </title>
</head>
<body bgcolor= "#FFFFFF ">
<hr>
<% session.setAttribute( "test_session ", "testValue_session ");%>
<hr> 获得session中的属性：
<c:out value= "${test_session} "/>
</body>
</html>
运行后错误提示
org.apache.jasper.JasperException: /c_out.jsp(11,0) According to TLD or attribute directive in tag file, attribute value does not accept any expressions
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:150)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:941)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:696)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Validator.validate(Validator.java:1475)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:214)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:495)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
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)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.30 logs.
------解决方案--------------------
改为
uri= "http://java.sun.com/jsp/jstl/core "
或者你看看你的web.xml有没有禁止了el
------解决方案--------------------
web.xml里面需要有core的映射
------解决方案--------------------
应用部署运行的时候出现JSP异常, 发生在使用JSTL库的时候: According to TLD or attribute directive in tag file, attribute value does not accept any expressions, 可能是因为使用了JSP2.0版本, 同时又没有使用JSTL core库的备用版本(RT库), 以下有两种处理方法:
1. 修改web.xml.
<web-app xmlns= "http://java.sun.com/xml/ns/j2ee " xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance " xsi:schemaLocation= "http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web
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