but Struts2 cannot receive this kind of camelcase style (just first one char lower and second upper case) This is actually not true. Struts2 can receive any variable name that comply JavaBeans spec. But apart from the Java implementation of this spec. (if you want to learn more about JavaBeans, see this post What is … Read more
In Struts2, Session Map and Request Map are wrappers for the underlying HttpServletRequest and Session objects. If you only need to access attributes, use the wrappers. Use ActionContext to get them (both the wrappers and the underlying HTTP objects) only if you are inside an Interceptor or a POJO. If you are inside an Action, … Read more
Try to use struts action exstension with comma like this <constant name=”struts.action.extension” value=”,”/>. From the struts2 properties file: Used by the DefaultActionMapper You may provide a comma separated list, e.g. struts.action.extension=action,jnlp,do The blank extension allows you to match directory listings as well as pure action names without interfering with static resources, which can be specified … Read more
With this configuration Struts2 filter intercepts all requests. To exclude your /service/* requests use struts.action.excludePattern constant: <constant name=”struts.action.excludePattern” value=”/service/.*” />
There are a few problems with the code you currently have. You should use an Interceptor to enforce that the user is logged in, rather than trying to enforce it in the JSP. JSP should only be for presentation, not for flow control. You should avoid scriptlets (blocks of code) in JSP. That was deprecated … Read more
Looks like you want to check in the constructor of the base action class, but you are mistaken. The constructor is used by the object factory to instantiate your action instance. In this stage a few things is available to you. In your case it’s wrong. Another approach is if you move the logic into … Read more
Using Struts2 you won’t need to use Scriptlets (<% stuff %>) anymore. They’re old, bad, they’re business logic injected in view pages, do not use them. You do not need JSTL neither, just using Struts2 tags you can achieve any result. For a better decoupling and separation of code and concepts, you should have: DAO … Read more
Use of # (pound sign) OGNL is used to refer to objects in the ActionContext as follows: objectName: object in the ValueStack (default/root object in the OGNL context), such as an Action property #objectName: object in the ActionContext but outside of the ValueStack, specifically… #objectName: ActionContext object that has been created using the Struts2 data … Read more
Struts2 uses Themes to generate HTML from Tags: a different theme chosen, a different HTML in output. The default theme is XHTML, that generates <td>, <label> and other stuff around your elements. Usually, I recommend to use the simple theme, that generates almost no additional code, and that would make your code work as-is. Put … Read more
Server side validation is mandatory : the request can come from a modified webpage, for example with rules altered with FireBug or any kind of DevTools. Or even easier, the request can be crafted by a malicious user, coming from a page (or a javascript block, or else) created ad-hoc, completely bypassing your page. Think … Read more