如何使用sequelize获取用户角色？

npm install sequelize mysql2

const { DataTypes } = require('sequelize');
const sequelize = require('../database'); // 假设数据库连接已经配置好

const User = sequelize.define('User', {
  name: {
    type: DataTypes.STRING,
    allowNull: false
  }
});

module.exports = User;

const { DataTypes } = require('sequelize');
const sequelize = require('../database'); // 假设数据库连接已经配置好

const Role = sequelize.define('Role', {
  name: {
    type: DataTypes.STRING,
    allowNull: false
  }
});

module.exports = Role;

const sequelize = require('./database'); // 假设数据库连接已经配置好
const User = require('./models/user');
const Role = require('./models/role');

// 定义用户和角色之间的多对多关联关系
User.belongsToMany(Role, { through: 'UserRole' });
Role.belongsToMany(User, { through: 'UserRole' });

// 同步数据库模型
sequelize.sync()
  .then(() => {
    console.log('数据库同步完成');
  })
  .catch((error) => {
    console.error('数据库同步失败:', error);
  });

User.findByPk(1, { include: Role })
  .then((user) => {
    console.log(user.Roles); // 输出用户的角色
  })
  .catch((error) => {
    console.error('获取用户角色失败:', error);
  });