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node返回數據出錯 Cannot set headers after they are sent to the client
時間 2021-01-16
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nodejs
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「Cannot set headers after they are sent to the client.」==>「發送到客戶端後無法設置標頭」 在處理HTTP請求時,服務器會輸出響應頭,再輸出主體內容,如果你在代碼中設置了res.writeHead()函數,然後再使用res.send()方法,就會出現這個錯誤 這時候只需要將res.send()函數更換爲res.end()函數代爲執行即可 注意
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