BUG id to load is required for loading

The reason for the bug is that the query data is where id = XXX. This is because @ModelAttribute does not get the id, which is null.

 

The book is fine, that's it, I don't know why, just change it to @RequestBody to accept the object. Maybe the front-end pass value has changed! !

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Origin blog.csdn.net/liuming690452074/article/details/114103914