Spring Boot 环境初始化redis-读取自定义配置

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

/**
 * @author Cage Zhao
 * @date 2022/2/28 14:30
 * @description
 */
@Configuration
@ConfigurationProperties(prefix = "spring.cloud.stream.redis")
@Data
public class RedisProperties {

    /**
     * Database index used by the connection factory.
     */
    private int database = 0;
    /**
     * Redis server host.
     */
    private String host;

    /**
     * Login password of the redis server.
     */
    private String password;

    /**
     * Redis server port.
     */
    private int port;

    // 其它参数略

}

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConfiguration;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnection;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author Cage Zhao
 * @date 2022/2/22 12:02
 * @description
 */
@Configuration
@ConditionalOnClass({JedisConnection.class, RedisOperations.class, org.springframework.boot.autoconfigure.data.redis.RedisProperties.Jedis.class})
@EnableConfigurationProperties(RedisProperties.class)
public class RedisConfig {


    @Bean
    public LettuceConnectionFactory lettuceConnectionFactory(RedisProperties redisProperties) {
        RedisStandaloneConfiguration redisConfiguration = new RedisStandaloneConfiguration(
                redisProperties.getHost(), redisProperties.getPort()
        );
        // 设置选用的数据库号码
        redisConfiguration.setDatabase(redisProperties.getDatabase());
        // 设置 redis 数据库密码
        redisConfiguration.setPassword(redisProperties.getPassword());

        // 根据配置和客户端配置创建连接
        LettuceConnectionFactory factory = new LettuceConnectionFactory((RedisConfiguration)redisConfiguration);
        return factory;
    }
    /**
     * redisTemplate 初始化
     *
     * @param lettuceConnectionFactory
     * @return
     */
    @Bean
    @ConditionalOnBean(LettuceConnectionFactory.class)
    public RedisTemplate<Object, Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {
        RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();

        redisTemplate.setConnectionFactory(lettuceConnectionFactory);

        // 使用Jackson2JsonRedisSerialize 替换默认序列化
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        // 设置value的序列化规则和 key的序列化规则
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        //jackson2JsonRedisSerializer就是JSON序列化规则，
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

}