如果拦截器中的身份验证失败，Struts2将返回json

Question

Please Note, I am not a Java developer so my question may have some heart breaking assumptions & invalid piece of code.

I have an interceptor which takes care of login authentication.

<global-results>
   <result name="login">/admin/login.jsp</result>
</global-results>

As shown, it redirects to login.jsp when authentication fails ie the return value is "login" (in this case)

What I want to achieve is, I return some other value (say "loginAjax") and it should not send an HTTP 302, instead it should return back a JSON response.

I don't know if that possible at all or not. I have this other piece in struts.xml which returns json when a particular value is returned from Action.

<result name="success" type="json">
    <param name="includeProperties">
        return_id, return_message
    </param>
</result>

I don't know how should I tie both the pieces together and get it working for the same interceptor.

Answer 1

A global result is not tied to one or more Interceptors or Actions: it is global to everyone, so it will be rendered when returned, no matter who is returning it.

You need to add a global (keeping it consistent with your other login result, that is global) result of type json, like this:

<global-results>
    <result name="login">/admin/login.jsp</result>
    <result name="loginAjax" type="json" />
</global-results>

Then, you can send a particular statusCode, or errorCode, like described here .

If you need to understand what kind of result you should return from within the Interceptor, you should proceed like described in this other answer , by checking the type of the result that it would be returned in case of success.

_{PS: Oh, and consider hiring a Java dev to do Java stuff properly :)}