SpringBoot整合Mybatis-Plus实现微信注册登录的示例代码

CREATE DATABASE wechat_login;

USE wechat_login;

-- 创建用户表
CREATE TABLE `user` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `open_id` varchar(50) NOT NULL COMMENT '微信OpenID',
  `credential` varchar(50) NOT NULL COMMENT '登录凭证',
  `create_time` datetime NOT NULL COMMENT '创建时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户表';

<dependencies>
    <!--Mybatis-Plus-->
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-boot-starter</artifactId>
        <version>3.4.2</version>
    </dependency>
    <!-- MySQL驱动程序 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.20</version>
    </dependency>
    <!--Swagger2-->
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>3.0.0</version>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>3.0.0</version>
    </dependency>
</dependencies>

# 数据库连接信息
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/wechat_login?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&useSSL=false&serverTimezone=Asia/Shanghai
spring.datasource.username=root
spring.datasource.password=root

# Mybatis配置
# 配置Mapper的扫描路径
mybatis-plus.mapper-locations=classpath:mapper/*.xml
# 开启实体注解扫描
mybatis-plus.typeAliasesPackage=com.springboot.mybatismplus.entity
# 开启逻辑删除
mybatis-plus.global-config.db-config.logic-delete-value=1
mybatis-plus.global-config.db-config.logic-not-delete-value=0
mybatis-plus.global-config.refresh=true

# swagger-ui配置
# 访问路径：http://localhost:8080/swagger-ui.html
swagger.title=Spring Boot Example
swagger.description=Spring Boot Example API Document
swagger.version=1.0.0
swagger.controller.package=com.springboot.mybatismplus.controller

public class UserEntity implements Serializable {

    private static final long serialVersionUID = 1L;

    @TableId(type= IdType.AUTO)
    private Long id;

    @TableField("open_id")
    private String openId;

    private String credential;

    @TableField("create_time")
    private LocalDateTime createTime;

    // getters and setters
}

public interface UserMapper extends BaseMapper<UserEntity> {

    /**
     * 根据OpenID查询用户信息
     */
    UserEntity selectByOpenId(String openId);

}

@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, UserEntity> implements UserService {

    @Autowired
    private UserMapper userMapper;

    /**
     * 根据OpenID查询用户信息
     */
    @Override
    public UserEntity selectByOpenId(String openId) {
        return userMapper.selectByOpenId(openId);
    }

}

@RestController
@RequestMapping("/user")
@Api(tags = "用户管理")
public class UserController {

    @Autowired
    private UserService userService;

    /**
     * 用户登录接口
     */
    @PostMapping("/login")
    @ApiOperation(value = "用户登录", notes = "首次登录需使用微信注册")
    public Result<UserEntity> login(@RequestParam("openId") String openId, @RequestParam("credential") String credential) {
        UserEntity user = userService.selectByOpenId(openId);
        if (user == null) {
            throw new BusinessException("该用户不存在");
        }
        if (!user.getCredential().equals(credential)) {
            throw new BusinessException("登录凭证不正确");
        }
        return Result.success(user);
    }

    /**
     * 用户注册接口
     */
    @PostMapping("/register")
    @ApiOperation(value = "用户注册", notes = "注册成功后可使用微信直接登录")
    public Result<UserEntity> register(@RequestBody UserEntity user) {
        boolean result = userService.save(user);
        if (!result) {
            throw new BusinessException("注册失败，请检查输入参数");
        }
        return Result.success(user);
    }

}

<template>
  <div class="login-page">
    <van-field v-model="openId" label="微信OpenID" placeholder="请输入微信OpenID" />

    <van-field type="password" v-model="credential" label="登录凭证" placeholder="请输入登录凭证" />

    <van-button type="primary" :disabled="!openId || !credential" class="login-button" @click="login">登录</van-button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      openId: '',
      credential: ''
    };
  },
  methods: {
    login() {
      if (!this.openId || !this.credential) {
        this.$toast('请填写完整登录信息');
        return;
      }
      // TODO: 调用后端接口处理登录逻辑
    }
  }
};
</script>

<template>
  <div class="register-page">
    <van-form
      ref="form"
      label-position="top"
      :rules="rules"
    >
      <van-field v-model="openId" label="微信OpenID" placeholder="请输入微信OpenID" />

      <van-field type="password" v-model="credential" label="登录凭证" placeholder="请输入登录凭证" />

      <van-button type="primary" :disabled="!isFormValid" class="register-button" @click="register">注册</van-button>
    </van-form>
  </div>
</template>

<script>
export default {
  data() {
    return {
      openId: '',
      credential: '',
      rules: {
        openId: [
          { required: true, message: '请输入微信OpenID', trigger: 'blur' }
        ],
        credential: [
          { required: true, message: '请输入登录凭证', trigger: 'blur' },
          { min: 6, max: 20, message: '登录凭证长度为6到20个字符', trigger: 'blur' }
        ]
      }
    };
  },
  computed: {
    isFormValid() {
      return this.$refs.form.validate();
    }
  },
  methods: {
    register() {
      if (!this.isFormValid) {
        this.$toast('请填写完整注册信息');
        return;
      }
      // TODO: 调用后端接口进行注册操作
    }
  }
};
</script>