在用户模块我们要清楚要完成的任务一、MyBatis后端操作数据库1.

需要在数据库创建用户数据库1.

连接数据库application.yml连接数据库这个可以直接赋值代码

UserMapper创建接口在UserMapper.xml实现在model中创建需要实现Mapper注释

创建UserMapper.xml

实现数据库操作实现具体数据库操作利用标签mapper标签地址要对应好不同操作

标签不同

登录接口前端发送post请求具体内容是直接对应的所以后端的参数也是对应的然后后端返回一个用户类1.

用户类3.

注册接口前端POST请求参数是一一对应后端参数接受一个一一对应1.

创建一个User类2.

com.example.java_gobang.model;public

class

jdbc:mysql://127.0.0.1:3306/java_gobang?characterEncodingutf8useSSLfalseserverTimezoneGMT%2B8username:

rootpassword:

com.mysql.cj.jdbc.Drivermybatis:mapper-locations:

classpath:mapper/**Mapper.xmllogging:pattern:console:

[%-5level]

com.example.java_gobang.model;import

org.apache.ibatis.annotations.Mapper;Mapper

public

http://mybatis.org/dtd/mybatis-3-mapper.dtd

mapper

namespacecom.example.java_gobang.model.UserMapperinsert

idinsertinsert

resultTypecom.example.java_gobang.model.Userselect

from

userMapper.selectByName(username);System.out.println([login]

username

!user.getPassword().equals(password))

{//

登录失败System.out.println(登录失败!);return

new

req.getSession(true);httpSession.setAttribute(user,

user);return

PostMapping(/register)ResponseBodypublic

Object

User();user.setUsername(username);user.setPassword(password);userMapper.insert(user);return

user;}

(org.springframework.dao.DuplicateKeyException

{User

httpSession.getAttribute(user);//

拿着这个

userMapper.selectByName(user.getUsername());return

newUser;}

com.example.java_gobang.api;import

com.example.java_gobang.model.User;

import

com.example.java_gobang.model.UserMapper;

import

org.springframework.web.bind.annotation.GetMapping;

import

org.springframework.web.bind.annotation.PostMapping;

import

org.springframework.web.bind.annotation.ResponseBody;

import

org.springframework.web.bind.annotation.RestController;import

import

javax.servlet.http.HttpServletRequest;

import

javax.servlet.http.HttpSession;RestController

public

userMapper;PostMapping(/login)ResponseBodypublic

Object

userMapper.selectByName(username);System.out.println([login]

username

!user.getPassword().equals(password))

{//

登录失败System.out.println(登录失败!);return

new

req.getSession(true);httpSession.setAttribute(user,

user);return

user;}PostMapping(/register)ResponseBodypublic

Object

User();user.setUsername(username);user.setPassword(password);userMapper.insert(user);return

user;}

(org.springframework.dao.DuplicateKeyException

{User

user;}}GetMapping(/userInfo)ResponseBodypublic

Object

httpSession.getAttribute(user);//

拿着这个

userMapper.selectByName(user.getUsername());return

newUser;}

initial-scale1.0title登录/titlelink

relstylesheet

idsubmit提交/button/div/div/divscript

src./js/jquery.min.js/scriptscriptlet

usernameInput

document.querySelector(#username);let

passwordInput

document.querySelector(#password);let

submitButton

document.querySelector(#submit);submitButton.onclick

function()

游戏大厅页面.location.assign(/game_hall.html);}

else

请求执行失败之后的回调函数alert(登录失败!);}});}/script

/body

initial-scale1.0title注册/titlelink

relstylesheet

srcjs/jquery.min.js/scriptscriptlet

usernameInput

document.querySelector(#username);let

passwordInput

document.querySelector(#password);let

submitButton

document.querySelector(#submit);submitButton.onclick

function()

注册成功!alert(注册成功!)location.assign(/login.html);}

else