<s:url id="indexEN">在myeclipse中提示id属性无效

Question

主要代码如下：

    <s:url id="indexEN" namespace="/" action="locale" >
      <s:param name="request_locale" >en</s:param>
   </s:url>
   <s:url id="indexES" namespace="/" action="locale" >
      <s:param name="request_locale" >es</s:param>
   </s:url>
   <s:url id="indexFR" namespace="/" action="locale" >
      <s:param name="request_locale" >fr</s:param>
   </s:url>

    <s:a href="%{indexEN}">English</s:a>
    <s:a href="%{indexES}">Spanish</s:a>
    <s:a href="%{indexFR}">France</s:a>

要用到id，但是myeclipse中提示id invalid
运行后报错：
org.apache.jasper.JasperException: /indexYanzheng.jsp (line: 13, column: 3) Attribute id invalid for tag url according to TLD
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:291)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:114)
at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1266)
at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:879)
at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1545)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2392)
at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2444)
at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2450)
at org.apache.jasper.compiler.Node$Root.accept(Node.java:471)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2392)
at org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1853)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:219)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:372)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:333)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:600)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:368)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
求大神指导

Answer 1

${indexEN} 是$接收参数的吧?? 不懂这个标签 , 错了勿怪