From a950287fa15ba0961dc09fc50bf9324258c89ac8 Mon Sep 17 00:00:00 2001
From: bunny <1319900154@qq.com>
Date: Mon, 18 Mar 2024 12:37:50 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0Redis=E9=85=8D=E7=BD=AE?=
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Content-Type: text/plain; charset=UTF-8
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---
 .../sky/common/config/RedisConfiguration.java | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 sky-common/src/main/java/com/sky/common/config/RedisConfiguration.java

diff --git a/sky-common/src/main/java/com/sky/common/config/RedisConfiguration.java b/sky-common/src/main/java/com/sky/common/config/RedisConfiguration.java
new file mode 100644
index 0000000..66d355e
--- /dev/null
+++ b/sky-common/src/main/java/com/sky/common/config/RedisConfiguration.java
@@ -0,0 +1,95 @@
+package com.sky.common.config;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cache.CacheManager;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.cache.RedisCacheConfiguration;
+import org.springframework.data.redis.cache.RedisCacheManager;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.RedisSerializationContext;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+@Configuration
+@Slf4j
+public class RedisConfiguration {
+    /**
+     * 使用StringRedisSerializer序列化为字符串
+     */
+    @Bean
+    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory connectionFactory) {
+        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
+        redisTemplate.setConnectionFactory(connectionFactory);
+        // 设置key序列化为string
+        redisTemplate.setKeySerializer(new StringRedisSerializer());
+        // 设置value序列化为JSON，使用GenericJackson2JsonRedisSerializer替换默认序列化
+        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
+        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
+        redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
+
+        return redisTemplate;
+    }
+
+    /**
+     * 解决cache(@Cacheable)把数据缓存到redis中的value是乱码问题
+     */
+    @Bean
+    @SuppressWarnings("all")
+    public CacheManager cacheManager(RedisConnectionFactory factory) {
+        StringRedisSerializer redisSerializer = new StringRedisSerializer();
+        // json序列化
+        Jackson2JsonRedisSerializer<Object> serializer = jsonRedisSerializer();
+        // 配置序列化
+        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
+        RedisCacheConfiguration redisCacheConfiguration = config
+                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
+                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(serializer));
+
+        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
+                .cacheDefaults(redisCacheConfiguration).build();
+        return cacheManager;
+    }
+
+    /**
+     * 指定的日期模式
+     */
+    public Jackson2JsonRedisSerializer<Object> jsonRedisSerializer() {
+        Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<>(Object.class);
+        ObjectMapper mapper = new ObjectMapper();
+        // 设置ObjectMapper访问权限
+        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
+        // 记录序列化之后的数据类型，方便反序列化
+        mapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
+        // LocalDatetime序列化，默认不兼容jdk8日期序列化
+        JavaTimeModule timeModule = new JavaTimeModule();
+        timeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
+        timeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
+
+        timeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        timeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        // 关闭默认的日期格式化方式，默认UTC日期格式 yyyy-MM-dd’T’HH:mm:ss.SSS
+        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        mapper.registerModule(timeModule);
+
+        serializer.setObjectMapper(mapper);
+        return serializer;
+    }
+}