Question

我需要转移使用javascript制作的数组的帮助。我对如何使用node.js并将其发送到MySql感到困惑。任何有用的视频链接或解释将不胜感激。谢谢

Answer 1

我建议您用useful tutorials仔细阅读。

也就是说，执行此操作的基本方法是使用MYSQL2之类的NPM软件包。然后，您遍历数组以创建一条插入语句：

// get the client
const mysql = require('mysql2');
 
// create the connection to database
const connection = mysql.createConnection({
  host: 'localhost',
  user: 'root',
  database: 'test'
});

/*
Assuming your database has a table named `employee` with a two columns: id and name.

Goal: INSERT INTO employee(id,name)
VALUES 
   (1,"Jerry"),
   (2,"Jenny"),
   (3,"Jessie"); */
   
var ary=[{id: 1, name: "Jerry"}, {id: 2, name:"Jenny"}, {id: 3, name: "Jessie"}];
var values = ary.map(a => {
  return `(${a.id}, ${a.name})`;
});

// simple query
connection.query(
  'INSERT INTO employee(id, name) VALUES ' + values.join(','),
  function(err, results, fields) {
    console.log(results); // results contains rows returned by server
    console.log(fields); // fields contains extra meta data about results, if available
  }
);

如何将数组从HTML页面发送到Node.js，然后将其存储在数据库中

1 个答案: