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package com.htb.beidawebspringboot10redis.config;

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;

import java.net.UnknownHostException;

import java.text.SimpleDateFormat;

/**

 * @Description:Redis通用配置类

 * @Author 16221

 * @Date 2020/4/23

 **/

@Configuration

public class RedisConfig {

    @Bean

    //不指定id的话bean 的id就是方法名

    //返回结果就是spring中管理的bean

    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory)

            throws UnknownHostException {

        RedisTemplate<Object, Object> template = new RedisTemplate<>();

        //ObjectMapper 指定在转成json的时候的一些转换规则

        ObjectMapper objectMapper = new ObjectMapper();

        objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));

        template.setConnectionFactory(redisConnectionFactory);

        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

        //把自定义objectMapper设置到jackson2JsonRedisSerializer中（可以不设置，使用默认规则）

        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        //RedisTemplate默认的序列化方式使用的是JDK的序列化

        //设置了key的序列化方式

        template.setKeySerializer(new StringRedisSerializer());

        //设置了value的序列化方式

        template.setValueSerializer(jackson2JsonRedisSerializer);

        return template;

    }

}