由于某种原因,我无法建立到服务器的简单连接。我安装了最新的MySQL Community 8.0数据库以及默认设置的Node.JS。
这是我的node。js代码
var mysql = require('mysql');
var con = mysql.createConnection({
host: "localhost",
user: "root",
password: "password",
insecureAuth : true
});
con.connect(function(err) {
if (err) throw err;
console.log("Connected!");
});
以下是在命令提示符中发现的错误:
C:\Users\mysql-test>node app.js
C:\Users\mysql-test\node_modules\mysql\lib\protocol\Parse
r.js:80
throw err; // Rethrow non-MySQL errors
^
Error: ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client
at Handshake.Sequence._packetToError (C:\Users\mysql-
test\node_modules\mysql\lib\protocol\sequences\Sequence.js:52:14)
at Handshake.ErrorPacket (C:\Users\mysql-test\node_mo
dules\mysql\lib\protocol\sequences\Handshake.js:130:18)
at Protocol._parsePacket (C:\Users\mysql-test\node_mo
dules\mysql\lib\protocol\Protocol.js:279:23)
at Parser.write (C:\Users\mysql-test\node_modules\mys
ql\lib\protocol\Parser.js:76:12)
at Protocol.write (C:\Users\mysql-test\node_modules\m
ysql\lib\protocol\Protocol.js:39:16)
at Socket.<anonymous> (C:\Users\mysql-test\node_modul
es\mysql\lib\Connection.js:103:28)
at Socket.emit (events.js:159:13)
at addChunk (_stream_readable.js:265:12)
at readableAddChunk (_stream_readable.js:252:11)
at Socket.Readable.push (_stream_readable.js:209:10)
--------------------
at Protocol._enqueue (C:\Users\mysql-test\node_module
s\mysql\lib\protocol\Protocol.js:145:48)
at Protocol.handshake (C:\Users\mysql-test\node_modul
es\mysql\lib\protocol\Protocol.js:52:23)
at Connection.connect (C:\Users\mysql-test\node_modul
es\mysql\lib\Connection.js:130:18)
at Object.<anonymous> (C:\Users\mysql-test\server.js:
11:5)
at Module._compile (module.js:660:30)
at Object.Module._extensions..js (module.js:671:10)
at Module.load (module.js:573:32)
at tryModuleLoad (module.js:513:12)
at Function.Module._load (module.js:505:3)
at Function.Module.runMain (module.js:701:10)
我读过一些东西,比如:
https://dev.mysql.com/doc/refman/5.5/en/old-client.html
https://github.com/mysqljs/mysql/issues/1507
但是我仍然不确定如何解决我的问题。任何帮助都将不胜感激
在MySQL 8+中,新的默认认证是caching_sha2_password而不是mysql_native_password。新的更安全的身份验证方法还不被本地mysql包所支持,但是你应该考虑使用包@mysql/xdevapi来代替,它是由Oracle官方支持和维护的。
要安装新包,请运行:
npm install @mysql/xdevapi --save --save-exact
连接到数据库并插入一些值:
const mysqlx = require('@mysql/xdevapi');
var myTable;
mysqlx
.getSession({
user: 'root',
password: '*****',
host: 'localhost',
port: 33060
})
.then(function (session) {
// Accessing an existing table
myTable = session.getSchema('Database_Name').getTable('Table_Name');
// Insert SQL Table data
return myTable
.insert(['first_name', 'last_name'])
.values(['John', 'Doe'])
.execute()
});
官方包文档可以在这里找到:
https://dev.mysql.com/doc/dev/connector-nodejs/8.0/
对于MySql 8,创建一个拥有所有权限的新用户,并将认证方法从caching_sha2_password更改为mysql_native_password。
详细步骤请查看Ochuko Ekrresa的文档。
步骤总结:
以root登录mysql -u root -p
创建用户newuser @ localhost
授予*上的所有特权。* TO 'newuser'@'localhost';
请检查上述文档链接,以获得有关授予特定特权的详细信息。
重新加载特权FLUSH privileges;
MySql退出;再次登录mysql -u [newuser] -p;
ALTER USER 'newuser'@'localhost' IDENTIFIED WITH mysql_native_password by 'password';
额外的信息:
对于我来说,在将身份验证更改为root后,我面临身份验证问题,无法登录。所以我重置我的密码(重置密码doc)。
对于会话,您应该使用用于mysql连接的任何模式
(async () => {
const connection = await db.connection();
sessionStore = new MySQLStore({
}, connection); //just pass your connection here
})();
我只是复制粘贴到这里但你可能已经实现了类似的东西来处理你的查询
const mysql = require('mysql')
if (!process.env.NODE_ENV || process.env.NODE_ENV === 'development') {
require('dotenv').config();
}
const dbConfig = {
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
connectionLimit: process.env.DB_CONNECTION_LIMITS
}
const pool = mysql.createPool(dbConfig);
const connection = () => {
return new Promise((resolve, reject) => {
pool.getConnection((err, connection) => {
if (err) {
reject(err);
}
const query = (sql, binding) => {
return new Promise((resolve, reject) => {
connection.query(sql, binding, (err, result) => {
if (err) {
reject(err);
}
resolve(result);
});
});
};
const release = () => {
return new Promise((resolve, reject) => {
if (err) {
reject(err);
}
resolve(connection.release());
});
};
resolve({ query, release });
});
});
};
const query = (sql, binding) => {
return new Promise((resolve, reject) => {
pool.query(sql, binding, (err, result, fields) => {
if (err) {
reject(err);
}
resolve(result);
});
});
};
module.exports = { pool, connection, query };
您可以在这里找到原始文档:https://dev.mysql.com/doc/dev/connector-nodejs/8.0/
'use strict';
const mysqlx = require('@mysql/xdevapi');
const options = {
host: 'localhost',
port: 33060,
password: '******',
user: 'root',
schema: 'yourconference'
};
mysqlx.getSession(options)
.then(session => {
console.log(session.inspect());
session.close();
}).catch(err => {
console.error(err.stack);
process.exit(1);
});