今天在controller中獲取post引數時，報瞭如下錯誤

{ 
    "timestamp": "2018-09-07T07:25:51.524+0000", 
    "status": 500, "error": "Internal Server Error", 
    "message": "Optional int parameter 'id' is present but cannot be translated into a null value due to being declared as a primitive type. Consider declaring it as object wrapper for the corresponding primitive type.", 
    "path": "/user/add" 
}
 

檢視報錯資訊

Optional int parameter 'id' is present but cannot be translated into a null value

意思是id不能轉換為空，後面也給出了修改的建議

Consider declaring it as object wrapper for the corresponding primitive type.

可以用包裝類來避免這個錯誤

在springmvc接受引數的時候，儘量不要使用基本資料型別