springboot開發介面報錯Optional int parameter 'userId' is present but cannot be translated into a null v......

weixin_34248705發表於2018-12-20
Spring BootNull

springboot開發介面報錯
Optional int parameter 'userId' 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

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原來是這樣的：


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解決方案：


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