struts之MappingDispatchAction的使用

jsp:

<%--	这里根据action的不同值（与struts-config.xml中path值对应）调用不同的方法--%>
<%--	<html:form action="/mapDelete.do">--%>
<%--	<html:form action="/mapSave.do">--%>
	<html:form action="/mapSearch.do">
		age : <html:text property="age"/><html:errors property="age"/><br/>
		name : <html:text property="name"/><html:errors property="name"/><br/>
		<input type="submit" name="method" value="search"/> 
	</html:form>

action:

public class MapAction extends MappingDispatchAction {
...
	public ActionForward saveAction(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		MapForm mapForm = (MapForm) form;// TODO Auto-generated method stub
		System.out.println("MapAction...save(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)");
		return mapping.findForward("succ");
	}
	public ActionForward deleteAction(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		MapForm mapForm = (MapForm) form;// TODO Auto-generated method stub
		System.out.println("MapAction...delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)");
		return mapping.findForward("succ");
	}
	public ActionForward searchAction(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		MapForm mapForm = (MapForm) form;// TODO Auto-generated method stub
		System.out.println("MapAction...search(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)");
		return mapping.findForward("succ");
	}

struts-config.xml

    <action
      attribute="mapForm"
      input="/jsp/map.jsp"
      name="mapForm"
      path="/mapSave"
      parameter="saveAction"
      scope="request"
      type="com.zhangl.struts.action.MapAction"  >
    <forward name="succ" path="/jsp/succeed.jsp"></forward>  
    </action>
    
    <action
      attribute="mapForm"
      input="/jsp/map.jsp"
      name="mapForm"
      path="/mapDelete"
      parameter="deleteAction"
      scope="request"
      type="com.zhangl.struts.action.MapAction"  >
    <forward name="succ" path="/jsp/succeed.jsp"></forward>  
    </action>
    
    <action
      attribute="mapForm"
      input="/jsp/map.jsp"
      name="mapForm"
      path="/mapSearch"
      parameter="searchAction"
      scope="request"
      type="com.zhangl.struts.action.MapAction"  >
    <forward name="succ" path="/jsp/succeed.jsp"></forward>  
    </action>

DispatchAction继承Action
LookupDispatchAction MappingDispatchAction都是继承DispatchAction
三者都可以实现一个action类对应多个应用

struts-config.xml中
DispatchAction一个配置
LookupDispatchAction一个配置
MappingDispatchAction多个配置
parameter＝“”前两者对应为参数名，第三者为方法名。

继承LookupDispatchAction的action需覆盖方法protected Map getKeyMethodMap()
并配置ApplicationResources.properties。

ie地址栏
DispatchAction显示方法名
LookupDispatchAction MappingDispatchAction隐藏方法名