SSM实现简单登录注册
SSM实现简单登录注册
重构了一下以前的SSM登录注册案例，SSM的三大核心IOC，AOP，DI不用多说，网上随便翻一下都有 ，本篇直接上手，使用Maven工程搭建一个简单的SSM框架实现简单的登录注册，验证重名功能，适合刚上手的朋友看看
数据库就不贴了，俩字段，username和userpwd，指定username为主键
项目结构图
web.xml配置文件
LogAndReg
springmvc
org.springframework.web.servlet.DispatcherServlet
contextConfigLocation
classpath:spring/*.xml
1
springmvc
/
CharacterEncodingFilter
org.springframework.web.filter.CharacterEncodingFilter
encoding
utf-8
CharacterEncodingFilter
/*
springmvc.xml
applicationContext.xml
PagesController
package cn.gingost.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
/*
* 页面跳转方法
*/
@Controller
public class PagesController {
@RequestMapping("/{page}")
public String pageTo(@PathVariable String page) {
return page;
}
}
UserController
package cn.gingost.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import cn.gingost.pojo.User;
import cn.gingost.service.UserService;
@Controller
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/golog")
public String log(User user, Model model) {
User u = userService.findOne(user);
model.addAttribute("user", u);
if (u != null) {
return "logok";
} else
return "logno";
}
@RequestMapping("/goreg")
public String reg(User user) {
User u = userService.checkReg(user.getUsername());
if (u == null) {
userService.addOne(user);
return "regok";
}
return "regno";
}
}
UserMapper
package cn.gingost.dao;
import cn.gingost.pojo.User;
public interface UserMapper {
//用户登录
User findOne(User user);
//用户注册
void addOne(User user);
//注册时的重名检测
User checkReg(String username);
}
User
package cn.gingost.pojo;
public class User {
private String username;
private String userpwd;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getUserpwd() {
return userpwd;
}
public void setUserpwd(String userpwd) {
this.userpwd = userpwd;
}
@Override
public String toString() {
return "User [username=" + username + ", userpwd=" + userpwd + "]";
}
}
UserService
package cn.gingost.service;
import cn.gingost.pojo.User;
public interface UserService {
User findOne(User user);
void addOne(User user);
User checkReg(String username);
}
UserServiceImpl
package cn.gingost.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import cn.gingost.dao.UserMapper;
import cn.gingost.pojo.User;
/*
* Service层，本例过于简单，其实可以不写
* 直接在Controller层中自动注入UserMapper usermapper
* 使用userMapper对象直接调用方法即可
*/
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
@Override
public User findOne(User user) {
// TODO Auto-generated method stub
return userMapper.findOne(user);
}
@Override
public void addOne(User user) {
userMapper.addOne(user);
// TODO Auto-generated method stub
}
@Override
public User checkReg(String username) {
// TODO Auto-generated method stub
return userMapper.checkReg(username);
}
}
UserMapper.xml
insert into user values(#{username},#{userpwd})
jdbc.properties
一个具有注脚的文本。[^2]
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/logandreg?useUnicode=true&characterEncoding=UTF8
user=root
pwd=root
maxActive=10
minIdle=5
initialSize=5
log.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
用户登录
reg.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
用户注册
验证的jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
Insert title here
如果你能看见我，说明你成功了
您的用户名是:${user.username}
您的密码是:${user.userpwd}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
Insert title here
用户名或者密码错误
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
Insert title here
注册成功如果你能看见我，说明你成功了
点此返回登录界面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
Insert title here
该用户名已被注册
发布项目后，在浏览器地址栏中输入http://localhost:8080/LogAndReg/log进入登录页面，即可开始验证工程
这里不再展示演示结果
有问题欢迎留言探讨
源码下载地址