为什么我的 Nodejs 应用程序看不到我的 sqlite3 数据库列？

Question

没有与数据库或 table 关联的错误，但它没有看到列。这是错误：节点服务器是运行.. SQLITE_ERROR：没有这样的栏目：场景

这是table:

CREATE TABLE animalStream (
id INTEGER PRIMARY KEY AUTOINCREMENT,
cascade_name TEXT NOT NULL,
enclosre_name TEXT NOT NULL,
scene TEXT NOT NULL,
sensorCamAddress TEXT NOT NULL,
streamerCamAddress TEXT NOT NULL,
duration INTEGER NOT NULL
);

下面的 Nodejs 代码允许我从 HTML 表单接收数据

 const path=require('path');
  const sqlite3 = require("sqlite3").verbose();
  const db_name = path.join(__dirname, "wildlife.db");
  const db = new sqlite3.Database(db_name);

var express = require('express');
var app = express();

var bodyParser = require("body-parser");
app.use(bodyParser.urlencoded({ extended: false }));

app.get('/', function (req, res) {
    res.sendFile('/home/harry/interface/in9.html');
});

app.post('/submit-student-data', function (req, res) {
  var scene = req.body.scene 
  var cascade_name = req.body.cascade_name;
  var enclosre_name = req.body.enclosre_name;
  var sensorCamAddress = req.body.sensorCamAddress
  var streamerCamAddress = req.body.streamerCamAddress
  var duration = req.body.duration;

db.run(`INSERT INTO animalStream(scene) VALUES(scene)`, ['C'], function(err) {
    if (err) {
      return console.log(err.message);
    }
    // get the last insert id
    console.log(`A row has been inserted with rowid ${this.lastID}`);
  });

});/////////////////

var server = app.listen(3000, function () {
    console.log('Node server is running..');
});

<!DOCTYPE html>

<html><body style="background-color:black;"><blockquote><blockquote>
        <form action="/submit-student-data" method="post">
<p style="color:white;">Cascade file name:<br>
<input type = "text" name = "cascade_name" /></p>

<p style="color:white;">Enclosure name:<br>
<input type = "text" name = "enclosre_name" /></p>

<p style="color:white;">Scene number:<br>
<input type = "text" name = "scene" /></p>

<p style="color:white;">Sensor Camera IP address:
<br> <input type = "text" name = "sensorCamAddress" /></p>
                                                                                                               >
<p style="color:white;">Streamer Camera IP address:
<br> <input type = "text" name = "streamerCamAddress" /></p>

<p style="color:white;">Scene duration:
<br><input type = "text" name = "duration" /></p>
         <br>
        <center> <INPUT type="submit" value="Send">  <INPUT type="reset"></center>
         </form>
</blockquote></blockquote>
</body></html>

正如我提到的，它似乎可以获取数据库并且 table 很好。由于某种原因，它只是看不到这些列。我将不胜感激。

Answer 1

我想你必须这样写你的查询：

`INSERT INTO animalStream (scene) VALUES("${scene}")`

而且您没有为设置 NOT NULL

的其他列设置任何值

为什么我的 Nodejs 应用程序看不到我的 sqlite3 数据库列？

Why can't my Nodejs application cannot see my sqlite3 database column?

html

node.js

express

node-sqlite3