Strurt2中的方法的呼叫方式

訪問action方法的三種方式

 1.定義一個Action類

//演示動態方法呼叫
public class Demo1Acton {
	
	public String add(){
			System.out.println("新增使用者");
		return "success";
	}

	public String delete(){
			System.out.println("刪除使用者");
		return "success";
	}

	public String update(){
			System.out.println("修改使用者");
		return "success";
	}

	public String find(){
			System.out.println("查詢使用者");
		return "success";
	}
}
 

方式1.無腦式寫法寫多個action   訪問不同action中的name屬性值即可訪問對應的方法

<?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
		
<struts>
		
		 <package name="dynamic" namespace="/dynamic" extends="struts-default">
			<action name="Demo1Action_add" class="cn.test.Demo1Acton" method="add">
				<result name="success">/hello.jsp</result>			
			</action>

<action name="Demo1Action_delete" class="cn.test.Demo1Acton" method="delete">
				<result name="success">/hello.jsp</result>			
			</action>

<action name="Demo1Action_upfate" class="cn.test.Demo1Acton" method="update">
				<result name="success">/hello.jsp</result>			
			</action>

<action name="Demo1Action_find" class="cn.test.Demo1Acton" method="find">
				<result name="success">/hello.jsp</result>			
			</action>
		</package> 
		
</struts>
 

方式1： 動態呼叫方式

<?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
		
<struts>
		
		<!-- 設定動態方法呼叫是否開啟常量 
			預設是關閉的,需要開啟
				
			http://localhost:8080/struts2_day01/dynamic/Demo1Action!find.do
			上述方式 不推薦  name!method
			其中.do是配置的<constant name="struts.action.extension" value="do"></constant>配置
		-->
        <!-- 字尾名配置 -->
        <constant name="struts.action.extension" value="do"></constant>

		 <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> 
		
		 <package name="dynamic" namespace="/dynamic" extends="struts-default">
			<action name="Demo1Action" class="cn.test.Demo1Acton">
				<result name="success">/hello.jsp</result>			
			</action>
		</package> 
		
</struts>
 

 方式2：萬用字元形式

<?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
		
<struts>
	    <!-- http://localhost:8080/dynamic/Demo1Action_add -->
		<package name="dynamic" namespace="/dynamic" extends="struts-default">
			<!-- 動態方法呼叫方式：萬用字元
				{1}取出第一個新號通配中的內容
				同樣的 
				Demo1Action_*_* 
				{2} 取第2個匹配中的內容
			 -->
			<action name="Demo1Action_*" class="cn.test.Demo1Acton" method="{1}">
				<result name="success">/hello.jsp</result>			
			</action>
		</package>
</struts>