♻ 调整缓存由序列化改为 json 格式，[ISSUE#57](https://github.com/xkcoding/spring-boot-demo/issues/57)

spring-boot-demo-cache-redis/README.md

@@ -148,6 +148,18 @@ public class RedisConfig {
         template.setConnectionFactory(redisConnectionFactory);
         return template;
     }
+
+    /**
+     * 配置使用注解的时候缓存配置，默认是序列化反序列化的形式，加上此配置则为 json 形式
+     */
+    @Bean
+    public CacheManager cacheManager(RedisConnectionFactory factory) {
+        // 配置序列化
+        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
+        RedisCacheConfiguration redisCacheConfiguration = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer())).serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
+
+        return RedisCacheManager.builder(factory).cacheDefaults(redisCacheConfiguration).build();
+    }
 }
 ```
 
@@ -327,7 +339,7 @@ public class UserServiceTest extends SpringBootDemoCacheRedisApplicationTests {
      */
     @Test
     public void getAfterSave() {
-        userService.saveOrUpdate(new User(4L, "user4"));
+        userService.saveOrUpdate(new User(4L, "测试中文"));
 
         User user = userService.get(4L);
         log.debug("【user】= {}", user);

spring-boot-demo-cache-redis/src/main/java/com/xkcoding/cache/redis/config/RedisConfig.java

@@ -2,12 +2,17 @@ package com.xkcoding.cache.redis.config;
 
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
+import org.springframework.cache.CacheManager;
 import org.springframework.cache.annotation.EnableCaching;
 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.RedisSerializationContext;
 import org.springframework.data.redis.serializer.StringRedisSerializer;
 
 import java.io.Serializable;
@@ -41,4 +46,16 @@ public class RedisConfig {
         template.setConnectionFactory(redisConnectionFactory);
         return template;
     }
+
+    /**
+     * 配置使用注解的时候缓存配置，默认是序列化反序列化的形式，加上此配置则为 json 形式
+     */
+    @Bean
+    public CacheManager cacheManager(RedisConnectionFactory factory) {
+        // 配置序列化
+        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
+        RedisCacheConfiguration redisCacheConfiguration = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer())).serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
+
+        return RedisCacheManager.builder(factory).cacheDefaults(redisCacheConfiguration).build();
+    }
 }

spring-boot-demo-cache-redis/src/test/java/com/xkcoding/cache/redis/service/UserServiceTest.java

@@ -44,7 +44,7 @@ public class UserServiceTest extends SpringBootDemoCacheRedisApplicationTests {
      */
     @Test
     public void getAfterSave() {
-        userService.saveOrUpdate(new User(4L, "user4"));
+        userService.saveOrUpdate(new User(4L, "测试中文"));
 
         User user = userService.get(4L);
         log.debug("【user】= {}", user);
@@ -62,4 +62,4 @@ public class UserServiceTest extends SpringBootDemoCacheRedisApplicationTests {
         userService.delete(1L);
     }
 
-}
\ No newline at end of file
+}