struts2 如果大于/小于等于等

Question

I get the feeling this is a bad idea in struts2:

<s:if test="%{#someVar >= 60}">Hello</s:if>

Is this actually legal? If not what is a better way to check some value within the JSP?

Thanks

Answer 1

The angle bracket ie > is legal inside the if struts tag. From the link shared by @rees, under the section Appendix: OGNL Language Reference > Operators , you can see this example:

e1 >= e2, e1 gte e2
Greater than or equals comparison

In your case:

<s:if test="%{#someVar gte 60}">Hello</s:if>

and you don't need the %{} , as the # sign is already telling Struts to go and find the someVar on the ActionContext . Better still, you don't need the # sign, if someVar is on the Value Stack , ie declared as a property in your Action class with getter and setter.

This does not work though:
<s:if test="%{#someVar &gte; 60}">Hello</s:if>