In this chapter we will teach you how to access a database using Struts 2 in simple steps. Struts is a MVC framework and not a database framework but it provides excellent support for JPA/Hibernate …
In this example you will learn how to do file upload with the help of the built-in FileUploadInterceptor. To do this first we need to get the file form the user. We use the Struts …
As mentioned previously, the <results> tag plays the role of a view in the Struts2 MVC framework. The action is responsible for executing the business logic. The next step after executing the business logic is …
Interceptors are conceptually the same as servlet filters or the JDKs Proxy class. Interceptors allow for crosscutting functionality to be implemented separately from the action as well as the framework. You can achieve the following …
Actions are the core of the Struts2 framework, as they are for any MVC (Model View Controller) framework. Each URL is mapped to a specific action, which provides the processing logic necessary to service the …
The Object Graph Navigation Language (OGNL) is an expression language. It simplifies the accessibility of data stored in the ActionContext. The struts framework sets the ValueStack as the root object of OGNL. Notice that action …
In this tutorial we will discuss about the ValueStack in the Struts2 how its work behind the scene. Fist lets see the high level picture of flow request data to Struts2 framework. Step 1. Client …
