"JSON parse error: Unexpected character ('/' (code 47)): maybe a (non-standard) comment? 
(not recognized as one since Feature 'ALLOW_COMMENTS' not enabled for parser); nested 
exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('/'
 (code 47)): maybe a (non-standard) comment? (not recognized as one since Feature 
 'ALLOW_COMMENTS' not enabled for parser)\n at [Source: (PushbackInputStream); line: 1,
  column: 28]"

这种异常是在postman中注释遇到的
在postman下发送post请求：

这种发送会报出上述异常，把注释去掉再次发送：

请求成功。