springboot整合cache缓存+redis（三）

浅浅的花香味﹌ 2022-12-28 04:29 328阅读 0赞

准备：docker镜像，redis镜像；redis桌面管理工具；redis desktop manager之后所有的代码都在github上：[https://github.com/pshdhx/springboot-redis-cache-mysql][https_github.com_pshdhx_springboot-redis-cache-mysql]

1、下载docker中的redis镜像 docker pull redis

2、生成redis容器； docker run -d  --name redis1  -p 6379:6379  redis --requirepass "pshdhx"

![20201214190927948.png][]

3、配置dom文件

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

4、application.properities配置redis

spring.redis.host=192.168.55.128
    spring.redis.port=6379
    spring.redis.password=pshdhx

5、客户端桌面工具连接redis

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BzaGRoeA_size_16_color_FFFFFF_t_70][]

6、springboot的redis使用

@Configuration(proxyBeanMethods = false)
    @ConditionalOnClass(RedisOperations.class)
    @EnableConfigurationProperties(RedisProperties.class)
    @Import({ LettuceConnectionConfiguration.class, JedisConnectionConfiguration.class })
    public class RedisAutoConfiguration {
    
    	@Bean
    	@ConditionalOnMissingBean(name = "redisTemplate")
    	public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory)
    			throws UnknownHostException {
    		RedisTemplate<Object, Object> template = new RedisTemplate<>();
    		template.setConnectionFactory(redisConnectionFactory);
    		return template;
    	}
    
    	@Bean
    	@ConditionalOnMissingBean
    	public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory redisConnectionFactory)
    			throws UnknownHostException {
    		StringRedisTemplate template = new StringRedisTemplate();
    		template.setConnectionFactory(redisConnectionFactory);
    		return template;
    	}
    
    }

/**
         * redis常见的五大数据类型
         * String(字符串)、list列表、set集合、hash散列、ZSet有序集合
         */
        @Autowired
        RedisTemplate redisTemplate;  //key value 都是对象
    
        @Autowired
        StringRedisTemplate stringRedisTemplate; //key和value都是字符串
    
    
        @Test
        public void test1(){
            //往redis中保存数据
            stringRedisTemplate.opsForValue().append("msg","hello");
        }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BzaGRoeA_size_16_color_FFFFFF_t_70 1][]

存储对象时要给实体类实现序列化的接口；

当然也可以使用json方式来缓存对象；

package com.pshdhx.cache.config;
    
    import com.pshdhx.cache.domain.Employee;
    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;
    
    /**
     * @Authtor pshdhx
     * @Date 2020/12/1420:24
     * @Version 1.0
     */
    @Configuration
    public class MyRedisConfig {
        @Bean
        public RedisTemplate <Object, Employee> empRedisTemplate(RedisConnectionFactory redisConnectionFactory) throws  Exception{
            RedisTemplate<Object,Employee>  template  = new RedisTemplate<>();
            template.setConnectionFactory(redisConnectionFactory);
            Jackson2JsonRedisSerializer<Employee> ser = new Jackson2JsonRedisSerializer<Employee>(Employee.class);
            template.setDefaultSerializer(ser);
            return template;
        }
    }

@Autowired
        RedisTemplate<Object,Employee> empRedisTemplate;
    
        @Test
        public void test2(){
            Employee employee = employeemapper.getEmployee(1);
            empRedisTemplate.opsForValue().set("emp-01",employee);
        }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BzaGRoeA_size_16_color_FFFFFF_t_70 2][]

[https_github.com_pshdhx_springboot-redis-cache-mysql]: https://github.com/pshdhx/springboot-redis-cache-mysql
[20201214190927948.png]: /images/20221120/3177b6dd61b14b5da211e62ad7381e85.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BzaGRoeA_size_16_color_FFFFFF_t_70]: /images/20221120/ce4d0098b1f44d7887329059543c3448.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BzaGRoeA_size_16_color_FFFFFF_t_70 1]: /images/20221120/33beb7e380bc440b953df5dc17b932e4.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BzaGRoeA_size_16_color_FFFFFF_t_70 2]: /images/20221120/8ba9b1291638426b95889891345a7e8e.png