fastjson-spring配置 text/html;charset=UTF-8 application/json;charset=UTF-8 DisableCircularReferenceDetect WriteMapNullValue WriteNullNumberAsZero WriteNullStringAsEmpty WriteNullListAsEmpty WriteNullBooleanAsFalse
text/html;charset=UTF-8
application/json;charset=UTF-8
DisableCircularReferenceDetect
WriteMapNullValue
WriteNullNumberAsZero
WriteNullStringAsEmpty
WriteNullListAsEmpty
WriteNullBooleanAsFalse