taglib标签在web.xml中报错处理方法

struts2开发中遇到这个问题，web.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="person" 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">

<display-name>person</display-name>

<!-- Include this if you are using Hibernate -->
<filter>
<filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
<filter-class>
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter
</filter-class>
</filter>

<filter-mapping>
<filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>

<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- Filters -->
<filter>
<filter-name>action2-cleanup</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ActionContextCleanUp
</filter-class>
</filter>
<filter>
<filter-name>sitemesh</filter-name>
<filter-class>
com.opensymphony.module.sitemesh.filter.PageFilter
</filter-class>
</filter>
<filter>
<filter-name>action2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>

<filter-mapping>
<filter-name>action2-cleanup</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>sitemesh</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>action2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<taglib>
<taglib-uri>sitemesh-decorator</taglib-uri>
<taglib-location>
WEB-INF/sitemesh-decorator.tld
</taglib-location>
</taglib>

<taglib>
<taglib-uri>sitemesh-page</taglib-uri>
<taglib-location>WEB-INF/sitemesh-page.tld</taglib-location>
</taglib>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>

其中的taglib标签加入后，eclipse会报cvc-complex-type.2.4.a: Invalid content was found starting with element 'taglib'. ... 错误。

解决方法是在taglib外面加个jsp-config标签：

<jsp-config>
<taglib>
<taglib-uri>sitemesh-decorator</taglib-uri>
<taglib-location>
WEB-INF/sitemesh-decorator.tld
</taglib-location>
</taglib>

<taglib>
<taglib-uri>sitemesh-page</taglib-uri>
<taglib-location>WEB-INF/sitemesh-page.tld</taglib-location>
</taglib>
</jsp-config>

<jsp-config>标签使用详解
<jsp-config> 包括<taglib> 和<jsp-property-group> 两个子元素。

其中<taglib>元素在JSP 1.2时就已经存在；而<jsp-property-group>是JSP 2.0 新增的元素。
<jsp-property-group>元素主要有八个子元素，它们分别为：

1.<description>：设定的说明；
2.<display-name>：设定名称；
3.<url-pattern>：设定值所影响的范围，如：/CH2 或 /*.jsp；
4.<el-ignored>：若为true，表示不支持EL 语法；
5.<scripting-invalid>：若为true，表示不支持<% scripting %>语法；
6.<page-encoding>：设定JSP 网页的编码；
7.<include-prelude>：设置JSP 网页的抬头，扩展名为.jspf；
8.<include-coda>：设置JSP 网页的结尾，扩展名为.jspf。