<!--mybatis plus的依赖--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatisplus.version}</version><exclusions><exclusion><groupId>com.baomidou</groupId><artifactId>mybatis-plus-generator</artifactId></exclusion></exclusions></dependency>

# 容器服务
server:port: 8002servlet:context-path: /xiongdi-api# spring 配置
spring:profiles:active: dev # 使用 application-dev.yml配置servlet:multipart: # 文件上传和下载enabled: truemax-file-size: 100MBmax-request-size: 100MB# 自定义配置
xiongdi:redis:open: false # 是否开启缓存 true 开启 false 关闭# mybatis plus的配置
mybatis-plus:# mybatis 的原生配置configuration:cache-enabled: false # 是否开启缓存map-underscore-to-camel-case: true # 是否开启自动驼峰命名规则（camel case）映射call-setters-on-nulls: true # MyBatis 在使用 resultMap 来映射查询结果中的列，如果查询结果中包含空值的列jdbc-type-for-null: 'null' # 如果type为空# MyBatis-Plus 全局策略配置global-config:# MyBatis-Plus 全局策略中的 DB 策略配置db-config:id-type: auto # 全局默认主键类型，AUTO:"数据库ID自增", INPUT:"用户输入ID", ID_WORKER:"全局唯一ID (数字类型唯一ID)", UUID:"全局唯一ID UUID";field-strategy: not_null # 字段策略 IGNORED:"忽略判断",NOT_NULL:"非 NULL 判断"),NOT_EMPTY:"非空判断"logic-delete-value: -1 # 逻辑已删除值,(逻辑删除下有)logic-not-delete-value: 0 # 逻辑未删除值,(逻辑删除下有效)banner: false # 是否显示mybatis-plus的图标

package io.xiongdi.dao;import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import io.xiongdi.entity.TokenEntity;
import org.apache.ibatis.annotations.Mapper;/*** TokenEntity 的操作DAO层【继承Base Mapper就具有了对TokenEntity的基本操作方法】* @author wujiaxing* @date 2019-06-30*/
@Mapper
public interface TokenDao extends BaseMapper<TokenEntity> {
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="io.xiongdi.dao.TokenDao"></mapper>

package io.xiongdi.service;import com.baomidou.mybatisplus.extension.service.IService;
import io.xiongdi.entity.TokenEntity;/*** token* @author wujiaxing* @date 2019-06-30*/
public interface TokenService extends IService<TokenEntity> {/*** <p>*     根据请求token查询token信息* </p>* @param token* @return*/TokenEntity queryByToken(String token);/***  创建token* @param userId 用户ID* @return 返回token信息*/TokenEntity createToken(long userId);/*** 设置token过期* @param userId 用户ID*/void expireToken(long userId);
}

package io.xiongdi.service.impl;import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import io.xiongdi.dao.TokenDao;
import io.xiongdi.entity.TokenEntity;
import io.xiongdi.service.TokenService;
import org.springframework.stereotype.Service;import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.util.Date;
import java.util.UUID;/*** @author wujiaxing* @date 2019-07-08*/
@Service("tokenService")
public class TokenServiceImpl extends ServiceImpl<TokenDao, TokenEntity> implements TokenService {/*** 12 小时过期 单位：毫秒*/private final static int EXPIRE = 3600 * 12 * 1000;/***  根据请求头的token查询数据库对应的token信息* @param token* @return*/@Overridepublic TokenEntity queryByToken(String token) {return this.getOne(new QueryWrapper<TokenEntity>().eq("token", token));}@Overridepublic TokenEntity createToken(long userId) {// 得到当前时间LocalDateTime now = LocalDateTime.now();// 根据过期时间加上当前时间，得到token的有效期long indate = LocalDateTime.now().toInstant(ZoneOffset.of("+8")).toEpochMilli() + EXPIRE;LocalDateTime tokenExpireDateTime = LocalDateTime.ofInstant(new Date(indate).toInstant(), ZoneId.systemDefault());// 生成tokenString token = generateToken();// 创建实体对象TokenEntity tokenEntity = TokenEntity.builder().expireTime(tokenExpireDateTime).userId(userId).token(token).updateTime(now).build();// 放入数据库保存this.saveOrUpdate(tokenEntity);return tokenEntity;}/***  生成token* @return*/private String generateToken() {return UUID.randomUUID().toString().replace("-", "");}@Overridepublic void expireToken(long userId) {// 获取当前时间LocalDateTime now = LocalDateTime.now();TokenEntity tokenEntity = TokenEntity.builder().userId(userId).expireTime(now).updateTime(now).build();this.saveOrUpdate(tokenEntity);}
}