Question

我正在组织中创建自定义缓存架构，并且必须序列化ResponseEntity对象。我使用GenericJackson2JsonRedisSerializer来序列化对象，但是当它是ResponseEntity时它不接受。

我使用Jackson Serializer的自定义redis模板：

 @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> template = new CustomRedisTemplate<String, Object>();
        template.setValueSerializer(new GenericJackson2JsonRedisSerializer());
        template.setConnectionFactory(jedisConnectionFactory());
        return template;
    }

我的端点返回ResponseEntity：

@RequestMapping(value = "/foo")
public ResponseEntity<String> foo() {
    return new ResponseEntity<>("bar", HttpStatus.OK);
}

错误记录：

Could not read JSON: Can not construct instance of org.springframework.http.ResponseEntity: no suitable constructor found, can not deserialize from Object value (missing default constructor or creator, or perhaps need to add/enable type information?)
 at [Source: [B@74297a01; line: 1, column: 137] (through reference chain: br.com.stilingue.cloudutilities.cache.CacheItem["value"]); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of org.springframework.http.ResponseEntity: no suitable constructor found, can not deserialize from Object value (missing default constructor or creator, or perhaps need to add/enable type information?)
 at [Source: [B@74297a01; line: 1, column: 137] (through reference chain: br.com.stilingue.cloudutilities.cache.CacheItem["value"])

问题发生在反序列化对象时，是否有人知道我能做什么？

Answer 1

尝试在return语句中添加类型信息：

localhost:3000/admins/sign_up

如何为Redis反序列化ResponseEntity？

1 个答案: