springboot整合cache缓存+redis（三）

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​​

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"

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

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");
    }

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);
    }