再使用taglib 标签 遇到的错误 以及解决方法

再使用taglib 标签 遇到的错误 以及解决方法

 

org.apache.jasper.JasperException: File  " /tags-html "  not found
 org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java: 94 )
 org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java: 404 )
 org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java: 154 )
 org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java: 202 )
 org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java: 460 )
 org.apache.jasper.compiler.Parser.parseDirective(Parser.java: 525 )
 org.apache.jasper.compiler.Parser.parseElements(Parser.java: 1625 )
 org.apache.jasper.compiler.Parser.parse(Parser.java: 173 )
 org.apache.jasper.compiler.ParserController.parse(ParserController.java: 247 )
 org.apache.jasper.compiler.ParserController.parse(ParserController.java: 149 )
 org.apache.jasper.compiler.ParserController.parse(ParserController.java: 135 )
 org.apache.jasper.compiler.Compiler.generateJava(Compiler.java: 243 )
 org.apache.jasper.compiler.Compiler.compile(Compiler.java: 451 )
 org.apache.jasper.compiler.Compiler.compile(Compiler.java: 437 )
 org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java: 555 )
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java: 291 )
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java: 301 )
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java: 248 )
 javax.servlet.http.HttpServlet.service(HttpServlet.java: 856 )


Element : servlet - mapping
The servlet - mapping element defines a mapping between a servlet and a url pattern

Content Model : (servlet - name, url - pattern)

解决:xml中定义就可以了
定义 taglib 标签
如下：

  <!-- Struts Tag Library Descriptors -->
  <taglib>
    <taglib-uri>/struts-html</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-html.tld</taglib-location>
  </taglib>

完整的如下:
<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
  "http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">

<web-app>
  <display-name>Struts Blank Application</display-name>
 
  <!-- Standard Action Servlet Configuration (with debugging) -->
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
     <init-param>
      <param-name>application</param-name>
      <param-value>ApplicationResources</param-value>
    </init-param>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
   
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>2</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>

  <!-- Standard Action Servlet Mapping -->
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  <!-- The Usual Welcome File List -->
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <!-- Struts Tag Library Descriptors -->
  <taglib>
    <taglib-uri>/struts-bean</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-bean.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/struts-html</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-html.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/struts-logic</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-logic.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/struts-nested</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-nested.tld</taglib-location>
  </taglib>

  <taglib>
    <taglib-uri>/struts-tiles</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-tiles.tld</taglib-location>
  </taglib>
 
  <taglib>
    <taglib-uri>/struts-template</taglib-uri>
    <taglib-location>/WEB-INF/tld/struts-template.tld</taglib-location>
  </taglib>
   <taglib>
    <taglib-uri>/jstl/c</taglib-uri>
    <taglib-location>/WEB-INF/tld/c.tld</taglib-location>
  </taglib>
 

</web-app>

现在对这个WEB.xml文件的使用方法开发方法还不是完全的了解 

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