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y_715:
document.getElementById("e ...
JSTL EC TABLE extremeTable 学习 -
wangyj0898:
学习了。。。
display table 标签用法 -
hejiajie2008:
没有图啊
图解myeclipse把maven普通java项目变成web项目的全程操作 -
zhangyu_2100:
[align=center][/align][color=br ...
request.getRealPath()的替代方法 -
senhui19:
LZ写的真不错呀,现在开发中都经常是用DetachedCrit ...
Hibernate的Criteria用法总结
在maven中配置以下依赖:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
在resin-3.0.28中运行,报以下错误:
Servlet.service() for servlet jsp threw exception
java.lang.NoClassDefFoundError: javax/el/ELException
原因是容器不支持JSTL1.2,换成以下依赖就好了:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.1.2</version>
</dependency>
Tomcat中也有同样的问题
Tomcat6 JSP2.1 / Servlet2.5 / JSTL2.0
Tomcat5 JSP2.0 / Servlet2.4 / JSTL1.1
Tomcat4 JSP1.2 / Servlet2.3 / JSTL1.0
resin-3.0.28 JSP2.0 / Servlet2.4 / JSTL1.1
Tomcat5与Tomcat6的EL冲突,JSTL的版本问题
Servlet.service() for servlet jsp threw exception
java.lang.NoClassDefFoundError: javax/el/ELException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2365)
at java.lang.Class.getDeclaredMethods(Class.java:1763)
at java.beans.Introspector$1.run(Introspector.java:1259)
at java.security.AccessController.doPrivileged(Native Method)
at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1257)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1125)
at java.beans.Introspector.getBeanInfo(Introspector.java:383)
at java.beans.Introspector.getBeanInfo(Introspector.java:155)
at java.beans.Introspector.getBeanInfo(Introspector.java:216)
at java.beans.Introspector.<init>(Introspector.java:364)
at java.beans.Introspector.getBeanInfo(Introspector.java:155)
at org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3673)
at org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2092)
at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1573)
at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
这个问题应该是出在JSTL的支持上,通过查看,原来系统使用了JSTL1.2。
JSTL1.2
The JSTL 1.2 Maintenace Release aligns with the Unified Expression Language (EL) that is being delivered as part of the JavaServer Pages (JSP) 2.1 specification。JSTL 1.2 is part of the Java EE 5 platform. (from http://java.sun.com/products/jsp/jstl/)
JSTL1.1
Jakarta Taglibs hosts the Standard Taglib 1.1, an implementation of the JSP Standard Tag Library (JSTL), version 1.1, which was developed under the Java Community Process.
NOTE: Standard-1.1 (JSTL 1.1) requires a JSP container that supports the Java Servlet 2.4 and JavaServer Pages 2.0 specifications. Jakarta Tomcat 5 supports the new specifications. The Standard-1.1 taglib has been tested with Tomcat 5.0.3.
JSTL1.0
Standard-1.0 (implementation of the JSTL 1.0 specification) requires a JSP container that supports the Java Servlet 2.3 and JavaServer Pages 1.2 specifications. Jakarta Tomcat 4 supports these specifications. The Standard 1.0 taglib has been tested with Tomcat 4.1.24. (from http://jakarta.apache.org/taglibs/doc/standard-doc/intro.html)
Tomcat6 实现了servlet 2.5 和JSP2.1的规范,可以支持JSTL1.2;
而Tomcat5实现了 servlet 2.4 和JSP2.0的规范,只能支持JSTL1.1
所以,只要使用JSTL1.1(standard-1.1.jar和jstl-1.1.jar)替换JSTL1.2(jstl-1.2.jar)即可在Tomcat5下正常运行!
另外,web.xml必须指定使用servlet 2.4 和JSP2.0的规范:
<web-app version="2.4" 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-app_2_4.xsd">
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/gtuu0123/archive/2009/12/05/4946452.aspx
发表评论
-
配置过滤器
2009-12-28 12:04 1086配置过滤器,通过mapping ... -
关于div的隐藏
2009-12-28 12:01 1030div的visibility可以控制div的显示和隐藏,但是隐 ... -
request.getRealPath()的替代方法
2009-08-25 15:26 2834替代方法是: 写道 request.getSession( ... -
JSP注释详解(新手必看)
2009-07-03 14:14 1403在客户端显示一个注释. JSP 语法<!-- comme ... -
把JSP放到WEB-INF后以保护JSP源代码
2008-12-15 10:58 1572本人在看《J2EE核心模式》(“Core J2ee Patte ... -
struts配置文件中<forward>标签的redirect属性
2008-12-02 20:47 2357struts-config.xml中有这样 ... -
STRUTS中ec标签的用法
2008-11-25 16:41 24801.<ec:table items="pres ... -
JSP生成彩色验证码
2008-06-28 09:47 1214程序代码image.jsp<%@ page conten ... -
对表单输入的数据做校验
2008-05-23 20:11 1190对表单输入的数据做校验 在struts中带有了Jakarta ... -
活学活用 Struts (转)
2008-04-11 16:02 14881.概述 Struts大家都很熟悉,不再详细介绍,另 ... -
newValue
2008-03-17 13:14 1360public List getAllList(String x ... -
web开发设计displaytag应用指南
2008-03-10 15:26 1462DisplayTag是一个非常好用的表格显示标签,适合MVC模 ... -
display table 标签用法
2008-03-10 15:25 5637在web.xml下添加一个filter <filte ... -
jstl之foreach循环
2008-03-10 15:04 1532<%@ page contentType="t ... -
JSTL1.1函数标签库(functions)如fn:length
2008-03-10 15:02 14365在jstl中的fn标签也是我 ... -
JSP Struts之HTML标签库详解
2008-03-10 15:00 1852Struts提供了五个标签库,即:HTML、Bean、Logi ... -
web.xml详解
2008-03-10 14:51 5486web.xml元素介绍 每一个站的WEB-INF下都有一个we ... -
Struts配置文件详解(3)
2008-03-10 14:50 1238<?xml version="1.0" ... -
Struts配置文件详解(2)
2008-03-10 14:49 1779关于 Struts中 struts-config.xml文件的 ... -
Struts配置文件详解(1)
2008-03-10 14:49 1260Struts应用采用两个基于X ...
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