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随着对个人项目的不断开发、迭代和重构，博主在这个过程中总结出了一套使用redis的较好的规范。主要包含Redis的key命名规范和Redis代码规范。

主要内容

主要包含以下几个内容：

• 同一应用的key在最前面添加统一的前缀，如应用名；
  • 案例：appName:业务相关的key前缀:具有代表性的字段的值
  • 例如：mhxysy:SEVER:1
• 所有key的前缀，根据业务功能，以常量的形式保存在同一个接口中；
• 一个业务的Redis缓存对应一个缓存类，使代码易于维护，把缓存的代码统一编写在一个类里，如果想要取消缓存，只需要修改这个缓存类的代码即可。缓存类可以根据自己的喜好来命名，如XxxRepository；
• 为了体现面向接口的开发原则，可以让所有Reids得缓存类实现一个代表Reids缓存的顶级接口，如RedisRepository；

代码展示

角色信息的缓存类RoleAccountRepository.java

package cn.edu.sgu.www.mhxysy.redis.repository.impl;import cn.edu.sgu.www.mhxysy.consts.RedisKeyPrefixes;
import cn.edu.sgu.www.mhxysy.entity.role.RoleAccount;
import cn.edu.sgu.www.mhxysy.redis.RedisUtils;
import cn.edu.sgu.www.mhxysy.redis.repository.RedisRepository;
import cn.edu.sgu.www.mhxysy.util.TimerUtils;
import cn.edu.sgu.www.mhxysy.vo.role.RoleAccountVO;
import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;import java.util.List;
import java.util.TimerTask;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;/*** @author heyunlin* @version 1.0*/
@Slf4j
@Component
public class RoleAccountRepository implements RedisRepository {private final RedisUtils redisUtils;public RoleAccountRepository(RedisUtils redisUtils) {this.redisUtils = redisUtils;}@Overridepublic void put(String id, Object value) {String key = RedisKeyPrefixes.PREFIX_ROLE_ACCOUNT + id;redisUtils.set(key, JSON.toJSONString(value));redisUtils.expire(key, 7, TimeUnit.DAYS);}@Overridepublic RoleAccount get(String id) {String key = RedisKeyPrefixes.PREFIX_ROLE_ACCOUNT + id;String value = redisUtils.get(key);if (value != null) {log.debug("命中缓存{}", key);}return JSON.parseObject(value, RoleAccount.class);}@Overridepublic void putList(Object value) {String key = RedisKeyPrefixes.PREFIX_ROLE_ACCOUNTS;redisUtils.set(key, JSON.toJSONString(value), 7, TimeUnit.DAYS);}@Overridepublic List<RoleAccount> getList() {String key = RedisKeyPrefixes.PREFIX_ROLE_ACCOUNTS;String value = redisUtils.get(key);if (value != null) {log.debug("命中缓存{}", key);return JSON.parseArray(value, RoleAccount.class);}return null;}@Overridepublic void delete() {String key = RedisKeyPrefixes.PREFIX_ROLE_ACCOUNTS;redisUtils.delete(key);}@Overridepublic void delete(String primaryKey) {redisUtils.delete(RedisKeyPrefixes.PREFIX_ROLE_ACCOUNT + primaryKey);}@Overridepublic void delayDoubleDelete(String primaryKey, Consumer<String> consumer) {delete();delete(primaryKey);deleteCache(primaryKey);consumer.accept(primaryKey);// 延时双删TimerUtils.schedule(new TimerTask() {@Overridepublic void run() {delete();delete(primaryKey);deleteCache(primaryKey);}});}public void cacheRole(String roleId, RoleAccountVO roleAccountVO) {String key = RedisKeyPrefixes.PREFIX_ROLE_DETAIL + roleId;redisUtils.set(key, JSON.toJSONString(roleAccountVO));}public RoleAccountVO getCache(String roleId) {String key = RedisKeyPrefixes.PREFIX_ROLE_DETAIL + roleId;String value = redisUtils.get(key);if (value != null) {log.debug("命中缓存{}...", key);return JSON.parseObject(value, RoleAccountVO.class);}return null;}public void deleteCache(String roleId) {String key = RedisKeyPrefixes.PREFIX_ROLE_DETAIL + roleId;redisUtils.delete(key);}}

具体的角色service层方法

package cn.edu.sgu.www.mhxysy.service.role.impl;import cn.edu.sgu.www.mhxysy.base.Pager;
import cn.edu.sgu.www.mhxysy.dto.role.RoleAccountDTO;
import cn.edu.sgu.www.mhxysy.easyexel.impl.RoleAccountExcelData;
import cn.edu.sgu.www.mhxysy.entity.gang.Gang;
import cn.edu.sgu.www.mhxysy.entity.role.Account;
import cn.edu.sgu.www.mhxysy.entity.role.RoleAccount;
import cn.edu.sgu.www.mhxysy.entity.role.RoleModeling;
import cn.edu.sgu.www.mhxysy.entity.school.School;
import cn.edu.sgu.www.mhxysy.entity.server.Server;
import cn.edu.sgu.www.mhxysy.exception.GlobalException;
import cn.edu.sgu.www.mhxysy.mapper.role.JiadianSchemaMapper;
import cn.edu.sgu.www.mhxysy.mapper.role.RoleAccountMapper;
import cn.edu.sgu.www.mhxysy.mapper.role.RoleAttributeMapper;
import cn.edu.sgu.www.mhxysy.mapper.role.RoleJiadianMapper;
import cn.edu.sgu.www.mhxysy.mapper.school.SchoolSkillCategoryMapper;
import cn.edu.sgu.www.mhxysy.mapper.school.SchoolSkillMapper;
import cn.edu.sgu.www.mhxysy.redis.repository.impl.RoleAccountRepository;
import cn.edu.sgu.www.mhxysy.restful.ResponseCode;
import cn.edu.sgu.www.mhxysy.service.gang.GangService;
import cn.edu.sgu.www.mhxysy.service.role.AccountService;
import cn.edu.sgu.www.mhxysy.service.role.RoleAccountService;
import cn.edu.sgu.www.mhxysy.service.role.RoleModelingService;
import cn.edu.sgu.www.mhxysy.service.school.SchoolService;
import cn.edu.sgu.www.mhxysy.service.server.ServerService;
import cn.edu.sgu.www.mhxysy.vo.role.RoleAccountVO;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;/*** @author heyunlin* @version 1.0*/
@Service
public class RoleAccountServiceImpl implements RoleAccountService {private final RoleAccountMapper roleAccountMapper;private final RoleJiadianMapper roleJiadianMapper;private final SchoolSkillMapper schoolSkillMapper;private final JiadianSchemaMapper jiadianSchemaMapper;private final RoleAttributeMapper roleAttributeMapper;private final RoleAccountRepository roleAccountRepository;private final SchoolSkillCategoryMapper schoolSkillCategoryMapper;private final GangService gangService;private final ServerService serverService;private final SchoolService schoolService;private final AccountService accountService;private final RoleModelingService roleModelingService;@Autowiredpublic RoleAccountServiceImpl(RoleAccountMapper roleAccountMapper,RoleJiadianMapper roleJiadianMapper,SchoolSkillMapper schoolSkillMapper,JiadianSchemaMapper jiadianSchemaMapper,RoleAttributeMapper roleAttributeMapper,RoleAccountRepository roleAccountRepository,SchoolSkillCategoryMapper schoolSkillCategoryMapper,GangService gangService,ServerService serverService,SchoolService schoolService,AccountService accountService,RoleModelingService roleModelingService) {this.roleAccountMapper = roleAccountMapper;this.roleJiadianMapper = roleJiadianMapper;this.schoolSkillMapper = schoolSkillMapper;this.jiadianSchemaMapper = jiadianSchemaMapper;this.roleAttributeMapper = roleAttributeMapper;this.roleAccountRepository = roleAccountRepository;this.schoolSkillCategoryMapper = schoolSkillCategoryMapper;this.gangService = gangService;this.serverService = serverService;this.schoolService = schoolService;this.accountService = accountService;this.roleModelingService = roleModelingService;}@Overridepublic RoleAccount selectById(String roleId) {RoleAccount roleAccount  = roleAccountRepository.get(roleId);if (roleAccount == null) {roleAccount = roleAccountMapper.selectById(roleId);roleAccountRepository.put(roleId, roleAccount);}return roleAccount;}}

Redis的key前缀常量接口代码展示

package cn.edu.sgu.www.mhxysy.consts;/*** redis的key前缀的常量接口* @author heyunlin* @version 1.0*/
public interface RedisKeyPrefixes {String PREFIX_BASE = "mhxysy:";/*** 用户的邮箱*/String PREFIX_EMAIL = PREFIX_BASE + "EMAIL:";/*** 用户登录的验证码*/String PREFIX_CAPTCHA = PREFIX_BASE + "CAPTCHA:";/*** 用户的侧栏菜单*/String PREFIX_USER_LEFT_MENUS = PREFIX_BASE + "USER_LEFT_MENUS:";/*** 角色的菜单树*/String PREFIX_ROLE_MENU_TREE = PREFIX_BASE + "ROLE_MENU_TREE:";/*** 用户登录的次数*/String PREFIX_USER_LOGIN_TIMES = PREFIX_BASE + "USER_LOGIN_TIMES:";/*** shiro缓存认证管理*/String PREFIX_CACHE_MANAGER = PREFIX_BASE + "AUTHORIZATION:CACHE_MANAGER:";/*** 角色高级属性*/String PREFIX_ADVANCED_PROPERTY = PREFIX_BASE + "ROLE_GJSX:";/*** 角色详情*/String PREFIX_ROLE_DETAIL = PREFIX_BASE + "ROLE_DETAIL:";/*** 角色*/String PREFIX_ROLE_ACCOUNT = PREFIX_BASE + "ROLE_ACCOUNT:";/*** 角色列表*/String PREFIX_ROLE_ACCOUNTS = PREFIX_BASE + "ROLE_ACCOUNTS:";/*** 角色造型*/String PREFIX_ROLE_MODELING = PREFIX_BASE + "ROLE_MODELING:";/*** 角色造型列表*/String PREFIX_ROLE_MODELINGS = PREFIX_BASE + "ROLE_MODELINGS";/*** 帮派*/String PREFIX_GANG = PREFIX_BASE + "GANG:";/*** 帮派列表*/String PREFIX_GANGS = PREFIX_BASE + "GANGS";/*** 帮派职务*/String PREFIX_GANG_JOB = PREFIX_BASE + "GANG_JOB:";/*** 帮派职务列表*/String PREFIX_GANG_JOBS = PREFIX_BASE + "GANG_JOBS";/*** 门派*/String PREFIX_SCHOOL = PREFIX_BASE + "SCHOOL:";/*** 门派列表*/String PREFIX_SCHOOLS = PREFIX_BASE + "SCHOOLS";/*** 宠物*/String PREFIX_CHONGWU = PREFIX_BASE + "CHONGWU:";/*** 宠物列表*/String PREFIX_CHONGWUS = PREFIX_BASE + "CHONGWUS";/*** 宠物类型*/String PREFIX_CHONGWU_CATEGORY = PREFIX_BASE + "CHONGWU_CATEGORY:";/*** 宠物类型列表*/String PREFIX_CHONGWU_CATEGORIES = PREFIX_BASE + "CHONGWU_CATEGORIES";/*** 大区*/String PREFIX_AREA = PREFIX_BASE + "AREA:";/*** 大区列表*/String PREFIX_AREAS = PREFIX_BASE + "AREAS";/*** 服务器*/String PREFIX_SERVER = PREFIX_BASE + "SERVER:";/*** 服务器列表*/String PREFIX_SERVERS = PREFIX_BASE + "SERVERS";/*** 账号*/String PREFIX_ACCOUNT = PREFIX_BASE + "ACCOUNT:";/*** 账号列表*/String PREFIX_ACCOUNTS = PREFIX_BASE + "ACCOUNTS";
}

Redis缓存顶级接口

package cn.edu.sgu.www.mhxysy.redis.repository;import java.util.function.Consumer;/*** redis仓库的顶级接口：为了满足开闭原则设计了此接口* @author heyunlin* @version 1.0*/
public interface RedisRepository {void put(String key, Object value);Object get(String key);void putList(Object value);Object getList();/*** 删除数据缓存*/void delete();/*** 删除指定ID的数据缓存* @param primaryKey 数据的ID*/void delete(String primaryKey);/*** 延时双删* @param primaryKey 数据的ID* @param consumer Consumer<String>*/default void delayDoubleDelete(String primaryKey, Consumer<String> consumer) { }}

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