Struts2 learning process -struts Executive Brief

1.web.xml

<web-app>
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>
            org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
        </filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <dispatcher>FORWARD</dispatcher>
        <dispatcher>REQUEST</dispatcher>        
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>

All access will be intercepted fliter filter, which struts into the workflow of them.

 

2.struts.xml

<action name="addProduct" class="com.how2java.action.ProductAction"
            method="add">
            <result name="list" type="redirect">listProduct</result>
        </action>

Find action according to the corresponding url.

 

3.Action

public String add() {
        System.out.println(product.getName());
        System.out.println(product.getCategory().getName());
        pdao.add(product);
        return "list";
}

action execute and return a String string back struts.xml

 

4.struts.xml

Centralized find the corresponding results from the results, forward or jump to the corresponding page or Action

 

5. Response Results

 

flow chart