Where is struts config xml

Yes,You have more than one struts - config file in one single struts application. What are the main classes which are used in struts application? ActionServlet : Its is back-bond of web application. Action : Using Action classes all the business logic is developed us call model of the application also. ActionMapping : Its mapping object and Action. The web. Apache Struts 2 is an open-source web application framework for developing Java EE web applications.

Interceptor is an object that is invoked at the preprocessing and postprocessing of a request. In Struts 2 , interceptor is used to perform operations such as validation, exception handling, internationalization, displaying intermediate result etc. The Apache Struts — still alive. Yes, you can be surprised but after almost 18 years on the market the Apache Struts project is still maintained and under active development.

Oh, and Struts is a Java web framework so if you are not a Java developer you can stop reading here ;-. Step 2 - Add index.

Step 4 - Add Logging. Step 5 - Add Struts 2 Servlet Filter. Hence we will only look at the five important sections of this file relevant to our discussion and their important attributes. In fact we have already covered most of these in the lifecycle discussion earlier, but are summarizing them again to refresh your mind. The five important sections are: 1. Form bean definition section 2.

Global forward definition section 3. Action mapping definition section 4. Controller configuration section 5. Application Resources definition section. Listing below shows a sample Struts Config file showing all the five sections. The form bean definition section contains one or more entries for each ActionForm. Each form bean is identified by a unique logical name. The type is the fully qualified class name of the ActionForm.

An interesting to note is that you can declare the same ActionForm class any number of times provided each entry has a unique name associated with it. This feature is useful if you want to store multiple forms of the same type in the servlet session. Table: Important attributes and elements of ActionMapping entry in struts-config.

The type attribute is the fully qualified class name of the associated Action. Each action entry in the action-mappings should have a unique path. This follows from the fact that each URL path needs a unique handler.

There is no facility to associate multiple Actions with the same path. The name attribute is the name of the Form bean associated with this Action. The actual form bean is defined in Form bean definition section.

Table above shows all the relevant attributes discussed so far for the action entry in action-mappings section. In the ActionMapping there are two forward s. Those forward s are local forward s — which means those forward s can be accessed only within the ActionMapping.

On the other hand, the forwards defined in the Global Forward section are accessible from any ActionMapping. As you have seen earlier, a forward has a name and a path. The name attribute is the logical name assigned.

The path attribute is the resource to which the control is to be forwarded. This resource can be an actual page name as in. The forward — either global or local are used in the execute method of the Action class to forward the control to another physical page or ActionMapping.

The full package and class name of the applications page bean that extends the struts org. ActionForm class. The lines 35—38 deal with global forwards. This registers the name login to the login. The most important part of the struts-config. Lines 39—68 give three examples of action mappings used in an application. The value of 1 means this servlet has highest priority loading. Second step: We need to specify with Servlet container that how to map the kind of incoming URLs will be processed by Struts action servlet.

For example, the following URLs will match the pattern:. In the previous part, we configured in web. ActionServlet to manage. So, in this part, we will know that the mapping of the request to a specific Action and ActionForm class is done in the struts-config. In struts-config. For each DB we need to configure one data-source tag here. But struts framework recommended not to configure connnection pool here because we need to write model layer separately and there we need to configure CPM.