Struts2中的标签问题

郁闷很久 :x
在struts2的jsp中



都会报下面的错误

org.apache.jasper.JasperException: /download.jsp(55,6) According to TLD or attribute directive in tag file, attribute href does not accept any expressions
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1172)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:819)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1512)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2393)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:838)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1512)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2393)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2399)
org.apache.jasper.compiler.Node$Root.accept(Node.java:489)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
org.apache.jasper.compiler.Validator.validate(Validator.java:1737)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:165)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:294)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:281)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:413)

我的jsp能正常显示EL 做过测试(MyEclipse 6.0.1 + jdk1.6)

但是我把和换成和加上刚才的内容就可以正常了,不报异常也可以在action中取到相应的值

谁能告诉我是怎么回事 (刚学struts2,struts1.2没有这个错误)? :cry:

有解决方法吗?

${requestScope.id}换成%{requestScope.id}

struts2 Generic Tag Reference:

[quote]If you want to use additional parameters in your s:a the best practice is to use a s:url to create your url and then leverage this url into your s:a tag. This is done by creating a s:url and specifying an id attribute.. like "testUrlId" in this example. Then in the s:a tag reference this id in the href attribute via " %{testUrlId}"[/quote]

[code="java"]

/s:url

" border="none"/>
/s:a

" border="none"/>/s:a" border="none"/>/s:a[/code]