vue-cli-plugin-mockjs

pluginOptions: {
    mock: {
        // mock配置文件路径，默认为 'mock.js'
        // Configuration file source, default is 'mock.js'
        entry: 'mock.js',  
        // 开关，默认为 true
        // switch, default is true
        power: true         
    }
}

module.exports = function (app, Mock) {
  app.post('/test', (req, res) => {
    res.json({
      code: '0',
      result: {
      }
    })
  })
}