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springmvc+mybatis+mysql调整的一个简单的登录例子

时间:2021-07-01 10:21:17 帮助过:88人阅读

spring mvc + mybatis + mysql 整合的一个简单的登录例子 今天用spring跟mybatis整合写了一个简单的登录例子,第一次整合,给自己做个笔记,可能注释写的有点少,做的不足的地方谢谢指出,也分享给需要的朋友,下面给出登录失败和成功的效果图: 这个登录例子

spring mvc + mybatis + mysql 整合的一个简单的登录例子
今天用spring跟mybatis整合写了一个简单的登录例子,第一次整合,给自己做个笔记,可能注释写的有点少,做的不足的地方谢谢指出,也分享给需要的朋友,下面给出登录失败和成功的效果图:

这个登录例子用的工具是myeclipse8.6+mysql5.1,使用到的技术有spring3.0+mybatis3.2.3+mybatis-spring-1.1.1(这个是spring跟mybatis整合的包),项目的整体结构如图:

现在我们要做的就是在myeclipse工具里新建一个web项目,并且添加spring 支持,不懂的朋友可以查看http://blog.csdn.net/ooliuyunoo/article/details/19908661

项目新建完之后我们就把项目分次序把项目新建起来:

1: 新建vo类,代码如下:

package com.li.vo;

public class UserVO {
	private int id;
	private String name;
	private String pwd;
	public UserVO(){}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public String getPwd() {
		return pwd;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getName() {
		return name;
	}
	public void setId(int id) {
		this.id = id;
	}
	public int getId() {
		return id;
	}
}


2: 新建UserDaoIMP接口:

package com.li.IMP;

import com.li.vo.UserVO;

public interface UserDaoIMP {
	public UserVO selectUser(UserVO uservo);
	public int insertUser(UserVO uservo);
	public int updaqteUser(UserVO uservo);
	public int deleteUserById(int user_id);
}


3: 新建UserDaoIMP.xml配置文件:



	
		
		
			insert into user(name,pwd) values(#{name},#{pwd})
		
		
			update user set name=#{name} where id=#{id}
		
		
			delete from user where id=#{id}
		
	


4:新建UserServiceIMP服务接口:

package com.li.service;

import com.li.vo.UserVO;

public interface UserServiceIMP {
	public UserVO selectUser(UserVO uservo);
	public int insertUser(UserVO uservo);
	public int updaqteUser(UserVO uservo);
	public int deleteUserById(int user_id);
}


5:新建UserService继承服务接口:

package com.li.service;

import com.li.IMP.UserDaoIMP;
import com.li.vo.UserVO;

public class UserService implements UserServiceIMP {
	private UserDaoIMP userdao;
	public int deleteUserById(int userId) {
		// TODO Auto-generated method stub
		return this.deleteUserById(userId);
	}

	public int insertUser(UserVO uservo) {
		// TODO Auto-generated method stub
		return this.userdao.insertUser(uservo);
	}

	public UserVO selectUser(UserVO uservo) {
		// TODO Auto-generated method stub
		return this.userdao.selectUser(uservo);
	}

	public int updaqteUser(UserVO uservo) {
		// TODO Auto-generated method stub
		return this.userdao.updaqteUser(uservo);
	}

	public void setUserdaoIMP(UserDaoIMP userdaoIMP) {
		this.userdao = userdaoIMP;
	}

	public UserDaoIMP getUserdaoIMP() {
		return userdao;
	}

}


6:新建一个登陆控制器:

package com.li.controller;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import com.li.IMP.UserDaoIMP;
import com.li.service.UserService;
import com.li.vo.UserVO;

public class LoginController implements Controller {
	private UserService userService;
	public ModelAndView handleRequest(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		String name=request.getParameter("userName");
		String password=request.getParameter("password");
		//System.out.println("name-----"+name+"----password-----"+password);
		UserVO uservo=new UserVO();
		uservo.setName(name);
		uservo.setPwd(password);
		Map model=new HashMap();
		if(userService.selectUser(uservo)!=null){
			uservo=userService.selectUser(uservo);
			System.out.println("能查到信息");
			model.put("uservo", uservo);
			return new ModelAndView("WEB-INF/Main.jsp",model);
		}else{
			System.out.println("查不到信息");
			model.put("error", "用户名或密码错误");
			return new ModelAndView("WEB-INF/Login.jsp",model);
		}
		
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
	public UserService getUserService() {
		return userService;
	}


}


7: 新建一个mybatis-config.xml 配置文件:





    

8:配置 applicationCotext.xml:



	
		
		
		
		
	
	
		
		
	
	
	
		
		
	
	
		
	
	
		
	
	
		
			
				LoginController
			
		
	


9: 修改index.jsp的body部份为:

  
    
  


10:添加login.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>



  
    
    
    My JSP 'Login.jsp' starting page
    
	
	
	    
	
	
	

  
  
  
    	
    	${error}
  


11: 添加main.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>



  
    
    
    My JSP 'Main.jsp' starting page
    
	
	
	    
	
	
	

  
  
  
    进入主页面
你的基本信息如下:
id:${uservo.id}
用户名:${uservo.name}
密码:${uservo.pwd}

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