Node.js massively injects data into MySQL
This time I will bring you Node.jsInjecting a large amount of data into MySQL, Node.js injecting a large amount of data into MySQL. What are the things to note?The following are practical cases, one Get up and take a look.
1. Database connection
var mysql = require('mysql');
// 数据库信息
var connection = mysql.createConnection({
host : 'localhost',
user : '数据库用户名',
password : '数据库登录密码',
database : '操作数据库名'
});insert data into nested array
For example, two pieces of data to be inserted: Record 1:from:"index" to:“www.alibaba.com” status:1 is_new:0
from:"index1" to:"www.google.com" status:1 is_new:0
var values = [ ["index","www.alibaba.com",1,0], ["index1","www.google.com",1,0] ];
var sql = "INSERT INTO url(`from`,`to`,`status`, `is_new`) VALUES ?";
connection.query(sql, [values], function (err, rows, fields) {
if(err){
console.log('INSERT ERROR - ', err.message);
return;
}
console.log("INSERT SUCCESS");
});var mysql = require('mysql');
// 数据库信息
var connection = mysql.createConnection({
host : 'localhost',
user : '数据库用户名',
password : '数据库登录密码',
database : '操作数据库名'
});
var values = [
["index","www.alibaba.com",1,0],
["index1","www.google.com",1,0]
];
var sql = "INSERT INTO url(`from`,`to`,`status`, `is_new`) VALUES ?";
connection.query(sql, [values], function (err, rows, fields) {
if(err){
console.log('INSERT ERROR - ', err.message);
return;
}
console.log("INSERT SUCCESS");
});action is to do transactions
Then I encapsulated a function here to perform operations such as loop insertion or update on the incoming array. If one item fails, roll back, and if everything is correct, commit I believe you have read the case in this article. After mastering the method, please pay attention to other related articles on the php Chinese website for more exciting content! Recommended reading:A detailed explanation of the steps for AngularJS registration form verification
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