2024/3/16

创建了DreamWind项目，用于开发测试

搭建后端

userService.js

const  Service  = require("egg").Service;class UserInfoService extends Service {//1.登录验证（根据用户名和密码进行查询）async QueryUserByUserNameByUserPassword(user){let result;try{let sql = `SELECT COUNT(*) FROM userinfo WHERE UserName = '${user.UserName}'`;let sqlResult = await this.app.mysql.query(sql)let IsUserNamehave = sqlResult[0]['COUNT(*)'];if(IsUserNamehave == 0){result = "400 不存在该账号，请注册";}if(IsUserNamehave == 1){result = "200 查询到该账号"sql = `SELECT COUNT(*) FROM userinfo WHERE UserName = '${user.UserName}' and UserPassword = '${user.UserPassword}'`;sqlResult = await this.app.mysql.query(sql)let IsPasswordhave = sqlResult[0]['COUNT(*)'];if(IsPasswordhave == 0){result = "401 密码不正确";}if(IsPasswordhave == 1){//后续在这里添加cookieresult = "200 成功登录"}}} catch (error) {console.log(error)}return result;}//2.注册账号（需要用户名和密码）async RegisterUserByUserNameByUserPassword(user) {let result;try {if(user.UserName == "" || user.UserPassword == ""){result = "400 请求数据格式不正确"return result;}let sql = `SELECT COUNT(*) FROM userinfo WHERE UserName = '${user.UserName}'`;let sqlResult = await this.app.mysql.query(sql)let Ishave = sqlResult[0]['COUNT(*)'];if(Ishave == 0){sql = `INSERT INTO userinfo (UserName , UserPassword) VALUES ("${user.UserName}", "${user.UserPassword}")`;await this.app.mysql.query(sql)result = "200 成功添加账号"}if(Ishave == 1){result = "400 该账号已存在";}} catch (error) {console.log(error)}return result;}//3.修改密码async ChangePasswordByUserNameByUserPassword(user){let result;try{if(user.UserName == "" || user.UserPassword == ""){result = "400 请求数据格式不正确"return result;}let sql = `SELECT COUNT(*) FROM userinfo WHERE UserName = '${user.UserName}'`;let sqlResult = await this.app.mysql.query(sql)let IsUserNamehave = sqlResult[0]['COUNT(*)'];if(IsUserNamehave == 0){result = "400 不存在该账号，请注册";}if(IsUserNamehave == 1){result = "200 查询到该账号"sql = `SELECT COUNT(*) FROM userinfo WHERE UserName = '${user.UserName}' and UserPassword = '${user.UserPassword}'`;sqlResult = await this.app.mysql.query(sql)let IsPasswordhave = sqlResult[0]['COUNT(*)'];if(IsPasswordhave == 0){sql = `update userinfo set UserPassword = "${user.UserPassword}" where UserName = "${user.UserName}"`;await this.app.mysql.query(sql)result = "200 成功修改密码"}if(IsPasswordhave == 1){result = "400 与原密码相同"}}} catch (error) {console.log(error)}return result;}
}module.exports = UserInfoService;

userController.js

const { Controller } = require("egg");class UserController extends Controller {//1.登录验证（根据用户名和密码进行查询）async QueryUserByUserNameByUserPassword() {const { ctx } = this; const result = await this.ctx.service.userService.QueryUserByUserNameByUserPassword(this.ctx.request.body);ctx.body = result}//2.注册账号（根据用户名和密码进行注册）async RegisterUserByUserNameByUserPassword() {const { ctx } = this; const result = await this.ctx.service.userService.RegisterUserByUserNameByUserPassword(this.ctx.request.body);ctx.body = result}//3.修改密码（根据用户名与新密码）async ChangePasswordByUserNameByUserPassword() {const { ctx } = this; const result = await this.ctx.service.userService.ChangePasswordByUserNameByUserPassword(this.ctx.request.body);ctx.body = result}
}module.exports = UserController

router.js

/*** @param {Egg.Application} app - egg application*/
module.exports = app => {const { router, controller } = app;router.get('/', controller.home.index);//1.登录验证router.post("/login" , controller.userController.QueryUserByUserNameByUserPassword)//2.注册账号router.post("/register" , controller.userController.RegisterUserByUserNameByUserPassword)//3.修改密码router.post("/change" , controller.userController.ChangePasswordByUserNameByUserPassword)
};