kob/backendCloud/backend/src/main/java/com/kob/backend/service/impl/user/account/RegisterServiceImpl.java

package com.kob.backend.service.impl.user.account;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.kob.backend.pojo.User;
import com.kob.backend.service.user.account.RegisterService;
import com.kob.backend.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;

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

/**
 * @author zfp
 */
@Service
public class RegisterServiceImpl implements RegisterService {
    @Autowired
    private UserMapper userMapper;

    @Autowired
    private PasswordEncoder passwordEncoder;
    @Override
    public Map<String, String> register(String username, String password, String confirmedPassword) {
        int MAX_USERNAME_LEN = 100;
        Map<String, String> map = new HashMap<>();
        if (username == null) {
            map.put("error_msg","用户名不能为空!");
            return map;
        }

        if (password == null || confirmedPassword == null) {
            map.put("error_msg","密码不能为空!");
            return map;
        }

        // 去除首尾空格
        username = username.trim();

        if  (username.length() == 0) {
            map.put("error_msg","用户名不能为空!");
            return map;
        }

        if (password.length() == 0 || confirmedPassword.length() == 0) {
            map.put("error_msg","密码不能为空!");
            return map;
        }

        if (username.length() > MAX_USERNAME_LEN) {
            map.put("error_msg","用户名长度不能大于100!");
            return map;
        }

        if (password.length() > MAX_USERNAME_LEN || confirmedPassword.length() > MAX_USERNAME_LEN) {
            map.put("error_msg","密码长度不能超过100!");
            return map;
        }

        if (!password.equals(confirmedPassword)) {
            map.put("error_msg","两次输入的密码不一致!");
            return map;
        }

        QueryWrapper<User> qw = new QueryWrapper<>();
        // 查询是否该用户名已被使用
        qw.eq("username",username);
        List<User> list = userMapper.selectList(qw);

        if (!list.isEmpty()) {
            map.put("error_msg","该用户名已被使用!");
            return map;
        }
        // 将用户密码加密
        String encodedPassword = passwordEncoder.encode(password);
        String photo = "https://cdn.acwing.com/media/user/profile/photo/41648_lg_8d1ad446b6.jpg";
        User user = new User(null,username,encodedPassword,photo,1500,null);
        // 将用户数据存入数据库
        userMapper.insert(user);

        // 返回success表示注册成功
        map.put("error_msg","success");
        return map;

    }
}