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struts2-2-用户自定义action的3种方法
一:导入jar包
二:导入struts.xml
配置struts.xml
<struts> <constant name="struts.devMode" value="http://www.mamicode.com/true" />
<constant name="struts.action.extension" value="http://www.mamicode.com/do,qq"/> <package name="default" namespace="/" extends="struts-default"> <action name="hello"> <result> /hello.jsp </result> </action> </package> <!-- Add packages here --></struts>
三:配置web.xml
(1)找web.xml
(2)关联源代码(JAVA):
struts.jar-->properties-->Java Resources Attach-->External location-->
(3)修改内容
<?xml version="1.0" encoding="UTF-8"?><web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 5 6 <display-name>Struts Blank</display-name> 7 8 <filter> 9 <filter-name>struts2</filter-name>10 <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>11 </filter>12 13 <filter-mapping>14 <filter-name>struts2</filter-name>15 <url-pattern>/*</url-pattern>16 </filter-mapping>17 18 </web-app>
四:新建hello.jsp
1 <%@ page language="java" contentType="text/html; charset=ISO-8859-1" 2 pageEncoding="ISO-8859-1"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 7 <title>Insert title here</title> 8 </head> 9 <body>10 helloStruts2!!!11 </body>12 </html>
五:(1)普通的JAVA类
1 package nuc.sw.action;2 3 public class HelloAction1 {4 public String execute() throws Exception{5 return "OK"; 6 }7 }
(2)实现接口Action的类
1 package nuc.sw.action; 2 3 import com.opensymphony.xwork2.Action; 4 5 public class HelloAction2 implements Action { 6 7 @Override 8 public String execute() throws Exception { 9 // TODO Auto-generated method stub10 return SUCCESS;11 }public HelloAction2() {12 // TODO Auto-generated constructor stub13 }14 }
(3)继承ActionSupport类
1 package nuc.sw.action; 2 3 import com.opensymphony.xwork2.ActionSupport; 4 5 public class HelloAction3 extends ActionSupport { 6 @Override 7 public String execute() throws Exception { 8 // TODO Auto-generated method stub 9 return SUCCESS;10 }11 }
(4)修改struts.xml
1 <package name="default" namespace="/" extends="struts-default"> 2 <action name="hello1" class="nuc.sw.action.HelloAction1" method=""> 3 <result name="OK"> 4 /hello.jsp 5 </result> 6 </action> 7 <action name="hello2" class="nuc.sw.action.HelloAction2" method=""> 8 <result name="success"> 9 /hello.jsp10 </result>11 </action>12 <action name="hello3" class="nuc.sw.action.HelloAction3" method="">13 <result name="success">14 /hello.jsp15 </result>16 </action>17 </package>
六:执行结果
(1):普通的JAVA类
(2):实现接口的Action类
(3):继承ActionSupport类
(4):修改action后缀名
<constant name="struts.action.extension" value="http://www.mamicode.com/do,qq"/>
struts2-2-用户自定义action的3种方法
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