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第一种DefaultAction什么都没有干
第二种实现了Action接口
第三种继承了ActionSupport类【常用】
目录结构
package com.Gary.web;
public class DefaultAction {
public String execute()
{
System.err.println("这是一个普通的action");
return null;
}
}
package com.Gary.web;
import com.opensymphony.xwork2.Action;
class ImplAction implements Action{
@Override
public String execute() throws Exception {
System.out.println("这是实现了Action接口的action");
return null;
}
}
package com.Gary.web;
import org.apache.struts2.ServletActionContext;
import com.Gary.domain.User;
import com.Gary.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
public class UserAction extends ActionSupport implements ModelDriven<User>{
public User user = new User();
public String execute() throws Exception {
System.err.println("我已经运行了");
UserService userService = new UserService();
boolean success = userService.findUser(user);
if(success)
{
return "success";
}else{
ServletActionContext.getRequest().setAttribute("error", "用户名或密码错误!!!");
return "error";
}
}
@Override
public User getModel() {
// TODO Auto-generated method stub
return user;
}
}
配置struts.xml
<struts>
<!-- name:配置包名 -->
<package name="MyPackage" namespace="/" extends="struts-default">
<action name="LoginAction" class="com.Gary.web.UserAction" method="execute">
<!-- 默认为转发 redirect设置为重定向-->
<result name="success" type="redirect">/index.html</result>
<result name="error">/login.jsp</result>
</action>
<action name="LoginActionDefault" class="com.Gary.web.DefaultAction" method="execute">
</action>
<action name="LoginActionImpl" class="com.Gary.web.ImplAction" method="execute"></action>
</package>
</struts>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<!-- name:配置包名 -->
<package name="MyPackage" namespace="/" extends="struts-default">
<action name="LoginAction" class="com.Gary.web.UserAction" method="execute">
<!-- 默认为转发 redirect设置为重定向-->
<result name="success" type="redirect">/index.html</result>
<result name="error">/login.jsp</result>
</action>
<action name="LoginActionDefault" class="com.Gary.web.DefaultAction" method="execute">
</action>
<action name="LoginActionImpl" class="com.Gary.web.ImplAction" method="execute"></action>
</package>
</struts>
来源:oschina
链接:https://my.oschina.net/u/4381342/blog/3625949