Returns the incremented value of the primary key of the newly inserted data.

 @Options(useGeneratedKeys = true, keyProperty = "instanceId", keyColumn = "instance_id")

The field corresponding to the primary key set by default in the @Options annotation is named id. In our table, the primary key is named instance_id, so we need to set keyProperty and keyColumn to the fields we want:
The meaning of this annotation is to put the data from the instance_id field into the instanceId member variable of the incoming object.
After calling the insert method, the @Options annotation will automatically set an auto-incremented value for the primary key field of the object corresponding to the table, which can be obtained directly from this object.