Struts2(五)Action二配置

2019-11-14 23:30:55

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Struts2(五)Action二配置一、method參數

action

package com.pb.web.action;public class HourseAction {        public String add(){        System.out.struts.xml
<?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>  <!--   <constant name="struts.enable.DynamicMethodInvocation" value="false" />    <constant name="struts.devMode" value="false" />    <package name="default" namespace="/" extends="struts-default">        <default-action-ref name="index" />        <global-results>            <result name="error">/error.jsp</result>        </global-results>        <global-exception-mappings>            <exception-mapping exception="java.lang.Exception" result="error"/>        </global-exception-mappings>        <action name="index">            <result type="redirectAction">                <param name="actionName">HelloWorld</param>                <param name="namespace">/example</param>            </result>        </action>    </package>    <include file="example.xml"/> -->    <!-- Add packages here --><constant name="struts.devMode" value="true" /><package name="default" namespace="/" extends="struts-default"><action name="hourse_add" class="com.pb.web.action.HourseAction" method="add"><result>addsuccess.jsp</result></action><action name="hourse_update" class="com.pb.web.action.HourseAction" method="update"><result>updatesuccess.jsp</result></action><action name="hourse_del" class="com.pb.web.action.HourseAction" method="delete"><result>deletesuccess.jsp</result></action></package></struts>
默認action配置
<!--默認action  --><default-action-ref name="index" /><action name="index"><result>index.jsp</result></action>
二、使用動態方法調用
package com.pb.web.action;public class UserAction {        public String add(){        System.out.println("執行添加操作！");        return "success";    }    public String update(){        System.out.println("執行更新操作！");        return "success";    }    public String delete(){        System.out.println("執行刪除操作！");        return "success";    }}
struts.xml
<package name="default" namespace="/" extends="struts-default"><action name="user" class="com.pb.web.action.UserAction"><result>userSuccess.jsp</result></action>
頁面
<!--  使用感嘆號，調用指定方法--><form action="user!add"><input type="submit"  value="添加"/></form><form action="user!update"><input type="submit"  value="更新"/></form><form action="user!delete"><input type="submit"  value="刪除"/></form>
另一種寫法
<!--  使用感嘆號，調用指定方法--><form action="user!add.action"><input type="submit"  value="添加"/></form><form action="user!update.action"><input type="submit"  value="更新"/></form><form action="user!delete.action"><input type="submit"  value="刪除"/></form>
三、使用通配符簡化配置action
package com.pb.web.action;public class HourseAction {        public String add(){        System.out.println("執行添加操作！");        return "success";    }    public String update(){        System.out.println("執行更新操作！");        return "success";    }    public String delete(){        System.out.println("執行刪除操作！");        return "success";    }}
struts.xml
<constant name="struts.devMode" value="true" /><package name="default" namespace="/" extends="struts-default"><action name="hourse_*" class="com.pb.web.action.HourseAction" method="{1}"><result>{1}success.jsp</result></action></package>
頁面
<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><form action="hourse_add"><input type="submit"  value="添加"/></form><form action="hourse_update"><input type="submit"  value="更新"/></form><form action="hourse_delete"><input type="submit"  value="刪除"/></form></body></html>