如何在JSP的Java函数中将Struts2属性标记作为参数传递？

Question

I am having a problem in passing Struts2 property tag as parameter in java function in the jsp. I am calling a java function like this from jsp,

<s:if test="%{DoSomething()}">

DoSomething() function is in the Action class, and is being called for each record in the iterator.

The problem is that I want to pass this property <s:property value="userId"/> in the function DoSomething as java string as follow.

<s:if test="%{DoSomething("<s:property value="userId">/)}">

Can anyone please guide me that how can I do that. I goggled it but did not find anything.

Answer 1

<s:if test="%{DoSomething(userId)}">

Answer 2

您不能将Struts2标记用于另一个Struts2标记，可以使用表达式语言，首先使用<s:set name="userId" value="userId" />然后使用${userId}

Answer 3

Most likely you wouldn't need to pass in a parameter like this. You are trying to call a method DoSomething from your action class. You want to pass in a parameter to this method in your action class. The userId must be existing already in you action class otherwise you couldn't be able to get it through the s:property tag. You can just use this userId variable in your DoSomething method of your action class.