springboot整合redis并在项目中使用

﹏ヽ暗。殇╰゛Y 2023-02-23 05:11 73阅读 0赞

> 推荐文章：  
> [redis学习][redis]  
> [springboot+mybatis+vue实战——旅游网站(一) 完成登录注册、验证码、省份增删改查功能][springboot_mybatis_vue_]

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### 目录 ###

*  一、下载安装并启动redis
 *  二、springboot项目整合redis
 *   *  1、pom.xml引入redis依赖
     *  2、在application.properties中加入配置
     *  3、新建\`RedisCache.java\`
     *  4、新建工具类\`ApplicationContextUtils.java\`
     *  5、在实体类中实现\`Serializable\`接口
     *  6、在对应的Mapper.xml中绑定redis
     *  7、启动项目

# 一、下载安装并启动redis #

看这篇博客的第二点：[https://blog.csdn.net/m0\_45234510/article/details/106504401][redis]

注意：启动后不要关闭，启动项目时需要保持redis一直打开

# 二、springboot项目整合redis #

## 1、pom.xml引入redis依赖 ##

<dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>

## 2、在application.properties中加入配置 ##

spring.redis.host=localhost
    spring.redis.port=6379
    spring.redis.database=0

## 3、新建`RedisCache.java` ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70]

*  RedisCache.java

package com.travel.travels.cache;
    
    import com.travel.travels.utils.ApplicationContextUtils;
    import lombok.extern.slf4j.Slf4j;
    import org.apache.ibatis.cache.Cache;
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.data.redis.serializer.StringRedisSerializer;
    
    @Slf4j
    public class RedisCache implements Cache { 
    
        private String id;
    
        public RedisCache(String id){ 
            log.info("当前的缓存id: [{}]",id);
            this.id = id;
        }
    
        @Override
        public String getId() { 
            return this.id;
        }
    
        @Override //放入redis缓存
        public void putObject(Object key, Object value) { 
            log.info("放入缓存的key:[{}] 放入缓存的valus:[{}]",key,value);
            getRedisTemplate().opsForHash().put(id,key.toString(),value);
        }
    
        @Override//从redis缓存获取
        public Object getObject(Object key) { 
            log.info("取出的缓存的key:[{}] ",key.toString());
            return getRedisTemplate().opsForHash().get(id,key.toString());
        }
    
        @Override//删除指定缓存
        public Object removeObject(Object o) { 
            return null;
        }
    
        @Override  //清除缓存
        public void clear() { 
            log.info("清除所有缓存信息...");
            getRedisTemplate().delete(id);
        }
    
        @Override
        public int getSize() { 
            return getRedisTemplate().opsForHash().size(id).intValue();
        }
    
        //封装获取redistemplate的方法
        public RedisTemplate getRedisTemplate(){ 
            RedisTemplate redisTemplate = (RedisTemplate) ApplicationContextUtils.getBean("redisTemplate");
            redisTemplate.setKeySerializer(new StringRedisSerializer());
            redisTemplate.setHashKeySerializer(new StringRedisSerializer());
            return redisTemplate;
        }
    }

## 4、新建工具类`ApplicationContextUtils.java` ##

![在这里插入图片描述][20200705174326605.png]

*  ApplicationContextUtils.java

package com.travel.travels.utils;
    
    import org.springframework.beans.BeansException;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationContextAware;
    import org.springframework.stereotype.Component;
    
    @Component // //注意:需要添加这个注解
    public class ApplicationContextUtils implements ApplicationContextAware { 
    
        private static ApplicationContext applicationContext;
    
        @Override
        public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 
            this.applicationContext = applicationContext;
        }
    
        public static Object getBean(String name){ 
            return applicationContext.getBean(name);
        }
    }

## 5、在实体类中实现`Serializable`接口 ##

implements Serializable

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 1]

## 6、在对应的Mapper.xml中绑定redis ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 2]

## 7、启动项目 ##

注意：需要提前打开redis！  
![在这里插入图片描述][2020070517525634.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 3]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 4]

--------------------

> 推荐文章：  
> [redis学习][redis]  
> [springboot+mybatis+vue实战——旅游网站(一) 完成登录注册、验证码、省份增删改查功能][springboot_mybatis_vue_]

[redis]: https://blog.csdn.net/m0_45234510/article/details/106504401
[springboot_mybatis_vue_]: https://blog.csdn.net/m0_45234510/article/details/107087289
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/2020070517410893.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw,size_16,color_FFFFFF,t_70
[20200705174326605.png]: https://img-blog.csdnimg.cn/20200705174326605.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200705174724871.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200705175047144.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw,size_16,color_FFFFFF,t_70
[2020070517525634.png]: https://img-blog.csdnimg.cn/2020070517525634.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200705175344367.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/2020070517551481.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzQ1MjM0NTEw,size_16,color_FFFFFF,t_70