node.js - Sequelize 'Dialect needs to be explicitly supplied as of v4.0.0'

Question

我需要在 node.js 环境中运行第三方应用程序，但 Sequelize 抛出“从 v4.0.0 开始需要显式提供方言” 我在这里找到了类似的主题 Dialect needs to be explicitly supplied as of v4.0.0但是 'export NODE_ENV=development' 不起作用，我找不到 Sequelize 配置文件。 我该如何解决这个错误？

代码如下:

const Sequelize = require('sequelize');

const scheme = require('./scheme');

const Op = Sequelize.Op;

const sequelize = new Sequelize(null, null, {

dialect: 'sqlite',
storage: 'db.sqlite3',

operatorsAliases: { $and: Op.and },

logging: false
});

scheme(sequelize);
sequelize.sync();

module.exports.sequelize = sequelize;
module.exports.models = sequelize.models;

Answer 1

您只需在初始化 sequelize 时提供方言；

const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: // pick one of 'mysql','sqlite','postgres','mssql',
});