SprignCloud整合Redis序列化问题【已解决】
2021/8/6 19:06:09
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项目中,redis作为一个单独的公共Moudle,被其他模块依赖
pom依赖:
<!--redis集成--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency>
代码:
@Autowired private RedisTemplate redisTemplate; /** * 初始化基础数据 * @return */ @Override public R<String> initBasicData() { redisTemplate.opsForValue().set("HD-BASIC-USER","测试"); Map test = new HashMap<>(); test.put("hello","world"); redisTemplate.opsForHash().put("HD-BASIC-MAP","TEST", JSONUtil.toJsonStr(test)); return R.success("初始化成功"); } /** * 获取基础数据 * @return */ @Override public R getBasicData() { String user = (String) redisTemplate.opsForValue().get("HD-BASIC-USER"); log.info("-------------------------"+user); return R.data(redisTemplate.opsForHash().get("HD-BASIC-MAP","TEST")); }
初始化时存储数据到redis,检查redis时出现以下问题:
存储的String类型和HASH类型的数据,key前面出现了莫名其妙的编码,value也乱码了
百度了一波,是序列化的问题,RedisTemplate的keySerializer和valueSerializer默认使用的是JdkSerializationRedisSerializer,debug看一下:
果然,那就换一个序列化的方式,将String类型的key和value以及HASH类型的key都用StringRedisSerializer来序列化,避免出现乱码的问题,将HASH类型的value序列化方式设置为jackson2JsonRedisSerializer来进行序列化。
上代码:
1.公共的redis模块新建配置对象,并初始序列化方式:
HdRedisConfig
package com.hd.redis.config; import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.JsonInclude; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.SerializationFeature; 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 javax.annotation.Resource; /** * @author liuch * @title: MyRedisConfig * @description: redis自定义序列化 * @date 2021/8/6 9:51 */ @Configuration public class HdRedisConfig { @Resource RedisConnectionFactory redisConnectionFactory; @Bean public RedisTemplate<Object, Object> redisTemplate() { RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>(); redisTemplate.setConnectionFactory(redisConnectionFactory); Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class); ObjectMapper objectMapper = new ObjectMapper(); objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL); objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false); jackson2JsonRedisSerializer.setObjectMapper(objectMapper); redisTemplate.setKeySerializer(new StringRedisSerializer()); redisTemplate.setValueSerializer(new StringRedisSerializer()); redisTemplate.setHashKeySerializer(new StringRedisSerializer()); redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer); redisTemplate.afterPropertiesSet(); return redisTemplate; } }
2.更新依赖后再测试,发现没有生效,是因为redis模块作为公共能提供依赖,自己项目在执行时,没有扫描到公共模块的自定义配置,
解决方法:
启动l类添加注解:
@ComponentScan(basePackages ="com.hd")
再次测试:
搞定!
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