spring hibernate jpa 用findAll的时候,取出的所有的string类型的字段都是空字符串

但数据库中是有值的,int值可以选出
{"id":18187,"no":"","parent_id":11654,"name":"","route":"","type":0,"state":1,"plugin_id":2},{"id":18488,"no":"","parent_id":18484,"name":"","route":"","type":0,"state":1,"plugin_id":2},{"id":5482,"no":"","parent_id":5475,"name":"","route":"","type":0,"state":1,"plugin_id":2},{"id":5484,"no":"","parent_id":5475,"name":"","route":"","type":0,"state":1,"plugin_id":2},