我刚刚开始接触Node.js。我来自PHP背景,所以我相当习惯使用MySQL来满足我的所有数据库需求。
我如何使用MySQL与Node.js?
我刚刚开始接触Node.js。我来自PHP背景,所以我相当习惯使用MySQL来满足我的所有数据库需求。
我如何使用MySQL与Node.js?
当前回答
您可以跳过ORM,构建器等,并使用sqler和sqler-mdb简化您的DB/SQL管理。
-- create this file at: db/mdb/setup/create.database.sql
CREATE DATABASE IF NOT EXISTS sqlermysql
const conf = {
"univ": {
"db": {
"mdb": {
"host": "localhost",
"username":"admin",
"password": "mysqlpassword"
}
}
},
"db": {
"dialects": {
"mdb": "sqler-mdb"
},
"connections": [
{
"id": "mdb",
"name": "mdb",
"dir": "db/mdb",
"service": "MySQL",
"dialect": "mdb",
"pool": {},
"driverOptions": {
"connection": {
"multipleStatements": true
}
}
}
]
}
};
// create/initialize manager
const manager = new Manager(conf);
await manager.init();
// .sql file path is path to db function
const result = await manager.db.mdb.setup.create.database();
console.log('Result:', result);
// after we're done using the manager we should close it
process.on('SIGINT', async function sigintDB() {
await manager.close();
console.log('Manager has been closed');
});
其他回答
您还可以尝试一种名为Node.js DB的新方法,该方法旨在为多个数据库引擎提供一个通用框架。它是用c++构建的,因此性能得到了保证。
具体来说,你可以使用它的db-mysql驱动程序来支持Node.js的MySQL。
通过安装库连接mysql数据库。在这里,选择了稳定且易于使用的node-mysql模块。
npm install mysql@2.0.0-alpha2
var http = require('http'),
mysql = require('mysql');
var sqlInfo = {
host: 'localhost',
user: 'root',
password: 'urpass',
database: 'dbname'
}
client = mysql.createConnection(sqlInfo);
client.connect();
用于NodeJS mysql连接和查询的例子
您可以跳过ORM,构建器等,并使用sqler和sqler-mdb简化您的DB/SQL管理。
-- create this file at: db/mdb/setup/create.database.sql
CREATE DATABASE IF NOT EXISTS sqlermysql
const conf = {
"univ": {
"db": {
"mdb": {
"host": "localhost",
"username":"admin",
"password": "mysqlpassword"
}
}
},
"db": {
"dialects": {
"mdb": "sqler-mdb"
},
"connections": [
{
"id": "mdb",
"name": "mdb",
"dir": "db/mdb",
"service": "MySQL",
"dialect": "mdb",
"pool": {},
"driverOptions": {
"connection": {
"multipleStatements": true
}
}
}
]
}
};
// create/initialize manager
const manager = new Manager(conf);
await manager.init();
// .sql file path is path to db function
const result = await manager.db.mdb.setup.create.database();
console.log('Result:', result);
// after we're done using the manager we should close it
process.on('SIGINT', async function sigintDB() {
await manager.close();
console.log('Manager has been closed');
});
以下是生产代码,可能会对您有所帮助。
Package.json
{
"name": "node-mysql",
"version": "0.0.1",
"dependencies": {
"express": "^4.10.6",
"mysql": "^2.5.4"
}
}
这是服务器文件。
var express = require("express");
var mysql = require('mysql');
var app = express();
var pool = mysql.createPool({
connectionLimit : 100, //important
host : 'localhost',
user : 'root',
password : '',
database : 'address_book',
debug : false
});
function handle_database(req,res) {
pool.getConnection(function(err,connection){
if (err) {
connection.release();
res.json({"code" : 100, "status" : "Error in connection database"});
return;
}
console.log('connected as id ' + connection.threadId);
connection.query("select * from user",function(err,rows){
connection.release();
if(!err) {
res.json(rows);
}
});
connection.on('error', function(err) {
res.json({"code" : 100, "status" : "Error in connection database"});
return;
});
});
}
app.get("/",function(req,res){-
handle_database(req,res);
});
app.listen(3000);
参考资料:https://codeforgeek.com/2015/01/nodejs-mysql-tutorial/
node-mysql可能是用于MySQL数据库的最好的模块之一,它是积极维护和良好的文档。