Question

我已经尝试了一个星期，以便能够将更改写入MySQL数据库，但最终我做到了，但是出现404错误，程序崩溃了，我在做什么错了，这是代码..

router.post('/edit', (req, res) => {
  const {
    user_id = req.params.user_id,
    timesPD = req.body.timesPD,
    chkCarbs = req.body.chkCarbs,
    chkInsulin = req.body.chkInsulin,
    typInsulin = req.body.typInsulin,
    chkBP = req.body.chkBP
  } = req.query;

  const sql =
    `UPDATE preferences
    SET user_id=${user_id}, timesPD=${timesPD}, chkCarbs=${chkCarbs},
    chkInsulin=${chkInsulin}, typInsulin=${typInsulin}, chkBP=${chkBP}
    WHERE user_id=${user_id};`;

  connection.query(sql,
    [user_id, timesPD, chkCarbs, chkInsulin, typInsulin, chkBP],
    (err, results) => {
      if (err) {
        return res.send(err.message);
      } else {
        res.send('Rows affected: ', results.affetedRows);
      }
    }
  );
});

我正在使用12.14.1版的节点，并且得到的终端错误是

RangeError [ERR_HTTP_INVALID_STATUS_CODE]: Invalid status code: Rows 
affected:
[0]     at ServerResponse.writeHead (_http_server.js:246:11)
[0]     at ServerResponse._implicitHeader (_http_server.js:237:8)
[0]     at ServerResponse.end (_http_outgoing.js:720:10)
[0]     at ServerResponse.send 
(D:\vscode\bgtracker\node_modules\express\lib\response.js:221:10)
[0]     at Query.<anonymous> 
(D:\vscode\bgtracker\routes\preferences.js:90:13)
[0]     at Query.<anonymous> 
(D:\vscode\bgtracker\node_modules\mysql\lib\Connection.js:525:10)
[0]     at Query._callback 
(D:\vscode\bgtracker\node_modules\mysql\lib\Connection.js:491:16) 
[0]     at Query.Sequence.end

（D：\ vscode \ bgtracker \ node_modules \ mysql \ lib \ protocol \ sequences \ Sequence.js：83：24） Query._handleFinalResultPacket上的[0]（D：\ vscode \ bgtracker \ node_modules \ mysql \ lib \ protocol \ sequences \ Query.js：139：8） [0]在Query.OkPacket上（D：\ vscode \ bgtracker \ node_modules \ mysql \ lib \ protocol \ sequences \ Query.js：72：10）{ [0]代码：“ ERR_HTTP_INVALID_STATUS_CODE”

运行此路线时，我收到状态代码错误

0 个答案: