目录

一、添加maven依赖

二、添加配置项

三、新增配置类

四、编辑实体类

五、编写接口

六、编写业务层

1.编写service层

2.编写service实现层 

七、测试接口

---

一、添加maven依赖

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.16.10</version>
</dependency>

二、添加配置项

redis:database: 1       # 指定所在的库host: 127.0.0.1   # Redis服务器地址 写你的ipport: 6379        # Redis服务器连接端口password: 123456  # Redis服务器连接密码lettuce:pool:max-active: 200   # 连接池最大连接数（使用负值表示没有限制）  类似于mysql的连接池max-wait: -1      # 连接池最大阻塞等待时间（使用负值表示没有限制） 表示连接池的链接拿完了 现在去申请需要等待的时间max-idle: 10      # 连接池中的最大空闲连接min-idle: 0       # 连接池中的最小空闲连接timeout: 6000         # 连接超时时间（毫秒） 去链接redis服务端

三、新增配置类

package com.saas.springboot.study.config;import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;@Configuration
public class RedisConfig {@Beanpublic RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {RedisTemplate redisTemplate = new RedisTemplate();redisTemplate.setConnectionFactory(redisConnectionFactory);Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);ObjectMapper objectMapper = new ObjectMapper();objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);jackson2JsonRedisSerializer.setObjectMapper(objectMapper);//key使用String序列化redisTemplate.setKeySerializer(new StringRedisSerializer());redisTemplate.setHashKeySerializer(new StringRedisSerializer());//value使用jackson序列化redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);redisTemplate.afterPropertiesSet();return redisTemplate;}
}

四、编辑实体类

package com.saas.springboot.study.entity.vo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/*** 用户表*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class UserVO {/*** 主键id*/Integer id;/*** 用户名*/String username;/*** 密码*/String password;
}

五、编写接口

package com.saas.springboot.study.controller;import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.saas.springboot.study.entity.dto.UserSaveDTO;
import com.saas.springboot.study.entity.po.User;
import com.saas.springboot.study.entity.vo.UserVO;
import com.saas.springboot.study.service.UserService;
import org.springframework.web.bind.annotation.*;import javax.annotation.Resource;
import java.util.List;@RestController
public class UserController {@Resourceprivate UserService userService;//保存用户信息到redis@PostMapping("/saveUserInfoToRedis")public void saveUserInfoToRedis(@RequestBody UserSaveDTO userSaveDTO){userService.saveUserInfoToRedis(userSaveDTO);}//从redis获取用户信息@PostMapping("/getUserInfoFromRedis")public UserVO getUserInfoFromRedis(){return  userService.getUserInfoFromRedis();}
}

六、编写业务层

1.编写service层

package com.saas.springboot.study.service;import com.saas.springboot.study.entity.dto.UserSaveDTO;
import com.saas.springboot.study.entity.vo.UserVO;public interface UserService {void saveUserInfoToRedis(UserSaveDTO userSaveDTO);UserVO getUserInfoFromRedis();
}

2.编写service实现层 

package com.saas.springboot.study.service.impl;import com.saas.springboot.study.entity.dto.UserSaveDTO;
import com.saas.springboot.study.entity.vo.UserVO;
import com.saas.springboot.study.service.UserService;
import org.springframework.beans.BeanUtils;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;import javax.annotation.Resource;@Service
public class UserServiceImpl implements UserService {@Resourceprivate RedisTemplate redisTemplate;@Overridepublic void saveUserInfoToRedis(UserSaveDTO userSaveDTO) {UserVO user = new UserVO();BeanUtils.copyProperties(userSaveDTO,user);redisTemplate.opsForValue().set("user",user);}@Overridepublic UserVO getUserInfoFromRedis() {return (UserVO)redisTemplate.opsForValue().get("user");}
}

七、测试接口

1.访问http://localhost:8888/saveUserInfoToRedis 保存redis

2.访问http://localhost:8888/getUserInfoFromRedis 获取redis