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

继续学习中