An exception is reported when the field in Hibernate is null.

Due to invalid data, you may encounter:

Org. hibernate. propertyaccessexception: null value was assigned to a property of primitive type setter of COM. xugao. Bean. memberlevel. memberpointrate

It is necessary to record it to avoid forgetting,

When an exception occurs, fields in the table are generally empty,

Example: membenlevel
Table. The value of the memberpointrate field is null.

If the corresponding object class membenlevel

Private double memberpointrate;

The above exception will be reported:

Modification method,

Private double memberpointrate;

The reason is very simple. in Java, NUL values cannot be assigned to the double, Int, and other basic data types. Only null values can be assigned to the encapsulation class.