英文:
REST PUT resource with ID while having auto-generated IDs
问题
我正在实现一个REST API，想要使用PUT方法来创建或更新资源。该资源通过一个ID进行标识，用户可以像这样发送ID：
{
"id": 5,
"name": "John"
}
Spring Boot Rest Controller接收这些消息并使用Spring Data Repository，其中包含自动生成的ID。如果数据库中存在具有此ID的记录，则会对其进行更新，否则将创建一个新记录并分配此ID。然而，这些ID是由Hibernate序列生成的。如果用户使用ID 5添加资源，但Hibernate序列当前位于编号2，我是否应该调整Hibernate序列？或者是否有更好的方法来解决这个问题？
英文:
I'm implementing a REST API and I want to use PUT method to create or update a resource. The resource is identified by an ID, which can be sent by user like this:
{
"id": 5,
"name": "John"
}
The Spring Boot Rest Controller accepts the messages and uses a Spring Data Repository, which has auto-generated IDs. If a record in DB with this ID exists, it will be updated, otherwise a new one with this ID will be created. However the IDs are created by Hibernate sequence. Should I move the Hibernate sequence if user adds resource with ID 5, but the Hibernate sequence is at number 2, or is there a better way how to handle this problem?
答案1
得分: 2
我认为不需要，你应该将POST/PUT API用于创建/更新，就像这样：
POST：/users
PUT：/users/{user_id}
请求体：
{
"name": "John",
...
}
英文:
I believe not, you should separate POST/PUT API to create/update like
POST: /users
PUT: /users/{user_id}
body: {
"name": "John",
...
}
答案2
得分: 1
在Hibernate中，如果您想添加具有自动生成的ID的新实体，则不应传递ID列，或者如果您已经具有带有ID的实体，则应将ID字段设置为null。
英文:
In Hibernate, if you want to add new Entity with auto-generated ID, you SHOULD NOT pass them ID column,or if you already have entity with ID, you should set ID field to null.
答案3
得分: 1
我建议你创建一个查询方法 GET：
GET：/users/{userId}
这将帮助你获取你的ID。
谢谢。
英文:
I suggest you to create a query method GET:
GET: /users/{userId}
This help you to get your ID.
Regards.
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