web.xml不认解决办法

web.xml不认<taglib>解决办法

在web.xml不认<taglib>解决办法:
如果是头是这样的<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
直接在后面加
<taglib>
    <taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
如果头是这样的
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
在后面加
<jsp-config>
<taglib>
    <taglib-uri>/WEB-INF/validator-user.tld</taglib-uri>
    <taglib-location>/WEB-INF/validator-user.tld</taglib-location>
</taglib>
</jsp-config>

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<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。

一个简单的<jsp-config>元素完整配置：

<jsp-config>
     <taglib>
         <taglib-uri>Taglib</taglib-uri>
         <taglib-location>/WEB-INF/tlds/MyTaglib.tld</taglib-location>
     </taglib>
     <jsp-property-group>
         <description>Special property group for JSP Configuration JSP example.</description>
         <display-name>JSPConfiguration</display-name>
         <url-pattern>/jsp/* </url-pattern>
         <el-ignored>true</el-ignored>
         <page-encoding>GB2312</page-encoding>
         <scripting-invalid>true</scripting-invalid>
         <include-prelude>/include/prelude.jspf</include-prelude>
         <include-coda>/include/coda.jspf</include-coda>
     </jsp-property-group>
</jsp-config>

 

 

参考资料：http://blog.youkuaiyun.com/struts2/archive/2007/08/03/1724395.aspx和http://www.java-cn.com/zhuanti/technology_detail.jsp?id=2802

 

例出自己的配置：

<web-app>
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>
  <servlet>
    <servlet-name>debugjsp</servlet-name>
    <description>Added by JBuilder to compile JSPs with debug info</description>
    <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
    <init-param>
      <param-name>classdebuginfo</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>3</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>debugjsp</servlet-name>
    <url-pattern>*.jsp</url-pattern>
  </servlet-mapping>
  <taglib>
    <taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-template.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-template.tld</taglib-location>
  </taglib>
</web-app>