我在我的 struts 应用程序中使用了瓷砖。我遇到了类似的错误
Servlet.service() for servlet [jsp] in context with path [/Sample_Struts2] threw exception [javax.servlet.ServletException: javax.servlet.jsp.JspException: Error executing tag: Attribute 'header' not found.] with root cause
struts.xml
<package name="tiles-sample" extends="tiles-default">
<result-types>
<result-type name="tiles"
class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
<action name="*Link" method="{1}" class="com.sample.TilesAction">
<result name="welcome" type="tiles">welcome</result>
<result name="friends" type="tiles">friends</result>
<result name="office" type="tiles">office</result>
</action>
web.xml
<context-param>
<param-name>org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG</param-name>
<param-value>/WEB-INF/tiles.xml</param-value>
</context-param>
<listener>
<listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class>
</listener>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
瓷砖.xml
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN"
"http://tiles.apache.org/dtds/tiles-config_2_0.dtd">
<tiles-definitions>
<definition name="helloWorld" template="/TilesSample.jsp">
<put-attribute name="header" value="/Header.jsp"/>
<put-attribute name="menu" value="/Menu.jsp"/>
<put-attribute name="body" value="/HelloWorld.jsp"/>
<put-attribute name="footer" value="/Footer.jsp"/>
</definition>
</tiles-definitions>
TileSample.jsp
<%@ taglib uri="http://tiles.apache.org/tags-tiles" prefix="tiles" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body>
<table border="1" cellpadding="2" cellspacing="2" align="center">
<tr>
<td height="30" colspan="2"><tiles:insertAttribute name="header" />
</td>
</tr>
<tr>
<td height="250"><tiles:insertAttribute name="menu" /></td>
<td width="350"><tiles:insertAttribute name="body" /></td>
</tr>
<tr>
<td height="30" colspan="2"><tiles:insertAttribute name="footer" />
</td>
</tr>
</table>
</body>
</html>
并记录错误
org.apache.tiles.jsp.taglib.RoleSecurityTagSupport doEndTag
SEVERE: Error executing tag: Attribute 'header' not found.
org.apache.tiles.TilesException: Attribute 'header' not found.
at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:112)
at org.apache.tiles.jsp.taglib.RenderTagSupport.execute(RenderTagSupport.java:154)
at org.apache.tiles.jsp.taglib.RoleSecurityTagSupport.doEndTag(RoleSecurityTagSupport.java:75)
at org.apache.tiles.jsp.taglib.ContainerTagSupport.doEndTag(ContainerTagSupport.java:80)
at org.apache.jsp.Tiles_jsp._jspx_meth_tiles_005finsertAttribute_005f0(Tiles_jsp.java:115)
at org.apache.jsp.Tiles_jsp._jspService(Tiles_jsp.java:67)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:88)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
我正在使用 struts 2.3.1.2 版本。我不知道确切的问题是什么。任何机构都可以帮助这个吗?