Reprinted from: https://blog.csdn.net/wgzhl2008/article/details/82184240
Narrative
Recently when using spring-data-redis, the use of serialization fastjson
GenericFastJsonRedisSerializerSequence of normal, but the following exception occurs during deserialization
com.alibaba.fastjson.JSONException: autoType is not support. com.hongshu.groovy.dto.Account。
Read the fastjson.ParserConfig source code, I found in the 1078 line abnormality occurs
Because GenericFastJsonRedisSerializer , as shown below, the autoTypeSupport set to true,
Resulting in generation of abnormal reason is because when the fastjson deserialization, build JavaBeanInfo. Whether there is a default constructor was examined. After seeing reason, directly to your Domain to go see, it really is not the default method of construction.
Summary: When using fastjson class serialization, especially in support of redis this sequence, in the class to be added to ensure that a default constructor, or during deserialization, fastjosn deserialized according to typeName, the exception occurs .
