前导博文

　　　　JavaWeb_(SSH)使用Struts框架实现用户的登陆　　

　　

　　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
      
       {    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

         
          
              
                   
                    
        
         /index.html
                    
        
         /login.jsp
                
                       
               
                       
           
      
     

 

              
          
           
               
                    
                     
         
          /index.html
                     
         
          /login.jsp