MappingDispatchAction

小灰灰 2022-05-15 03:53 23阅读 0赞

MappingDispatchAction是DispatchAction的子类，它提供的功能和DispatchAction功能类似，它也允许多个请求对应一个Action，但它的实现方式更加灵活。

MappingDispatchAction可以配置到多个地址上，比DispatchAction更加直观，并且也可使用不同的formbean，但缺点是使配置文件过于复杂。

1.  继承MappingDispatchAction

package com.kexin.web.action;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.struts.action.ActionForm;
    import org.apache.struts.action.ActionForward;
    import org.apache.struts.action.ActionMapping;
    import org.apache.struts.actions.MappingDispatchAction;
    
    public class BookAction2 extends MappingDispatchAction {
        
        public ActionForward add(ActionMapping arg0, ActionForm arg1, HttpServletRequest arg2, HttpServletResponse arg3)
                throws Exception {
            System.out.println("add");
            return null;
        }
        public ActionForward update(ActionMapping arg0, ActionForm arg1, HttpServletRequest arg2, HttpServletResponse arg3)
                throws Exception {
            System.out.println("update");
            return null;
        }
        public ActionForward find(ActionMapping arg0, ActionForm arg1, HttpServletRequest arg2, HttpServletResponse arg3)
                throws Exception {
            System.out.println("find");
            return null;
        }
        public ActionForward delete(ActionMapping arg0, ActionForm arg1, HttpServletRequest arg2, HttpServletResponse arg3)
                throws Exception {
            System.out.println("delete");
            return null;
        }
    }

1.  配置文件

1.  使用连接

<html:link action="/addBook">增加</html:link>
    <html:link action="/deleteBook">删除</html:link>
    <html:link action="/updateBook">更改</html:link>
    <html:link action="/findBook">查找</html:link>

MappingDispatchAction

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