struts2_模型驱动

一.注意点

建立实现ModelDriven接口的action类
在该action类中,创建实体对象并new
在getModel返回该对象
在显示页面中提交的表单name正常写

二.案例

　　创建实体类User:

package com.ahd.entity;import com.opensymphony.xwork2.ModelDriven;public class User{private String username;private String password;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}
}

User

　　创建实现ModelDriven接口的action类UserModelAction:

　　package com.ahd.action;import com.ahd.entity.User;import com.opensymphony.xwork2.Action;import com.opensymphony.xwork2.ModelDriven;public class UserModelAction implements ModelDriven{ User user=new User();@Overridepublic Object getModel() {// TODO Auto-generated method stubreturn user;}public String execute(){System.out.println(user.getUsername()+user.getPassword());return Action.SUCCESS;}}

　　提交表单页面编写(关键代码):

1 <form action="userModel.action">
2         用户名:<input type="text" name="username"/><br/>
3         密    码:<input type="password" name="password"/><br/>
4         <input type="submit" value="submit"/>
5         <input type="reset" name="reset"/><br/>
6     </form>

　　struts.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""struts-2.0.dtd"><struts><package name="struts2" extends="struts-default" namespace=""><action name="userModel" class="com.ahd.action.UserModelAction"><result>/success.jsp</result></action></package>
</struts>

struts.xml

　　web.xml文件(关键代码)　

<filter><filter-name>struts2</filter-name><filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class></filter><filter-mapping><filter-name>struts2</filter-name><url-pattern>/*</url-pattern></filter-mapping>