Vue笔记:Vue中使用mockjs

 

前言

  前后端分离的开发模式,前端需要向后端请求数据(ajax请求),但实际开发过程中,前后端会约定一份接口文档,但前后端开发进度并不一致,当后端没有完善接口功能时,前端需要在本地模拟数据返回,此时需要使用到mockjs。

安装

npm install mockjs --save-dev

目录结构

 

 配置

1、api下的config.js:配置axios的拦截处理

import axios from 'axios'

// 创建一个axios实例
const service = axios.create({
    //请求超时配置
    timeout:3000
})
//添加请求拦截器
service.interceptors.request.use(
    config => {
        return config
    },
    err => {
        console.log(err)
    }
)
//添加响应拦截器
service.interceptors.response.use(
    response => {
        let res = {}
        res.status = response.status
        res.data = response.data
        return res
    },
    err => {
        console.log(err)
    }
)

export default service

另外一个应用场景,劫持请求,获取token,为请求添加token:

// 请求拦截器
axios.interceptors.request.use(config => {
    const token = localStorage.getItem('userToken');
    if (token) { // 判断是否存在token,如果存在的话,则每个http header都加上token
      config.headers.accessToken = token;
    }
    return config;
  }, 
  error => {
    return Promise.reject(error);
  })

2、mock目录下index.js

import Mock from 'mockjs'
import homeApi from './home'
import userApi from './user'


// 设置200-2000毫秒延时请求数据
// Mock.setup({
//   timeout: '200-2000'
// })

// 首页相关
// 拦截的是 /home/getData
Mock.mock(/\/home\/getData/, 'get', homeApi.getStatisticalData)

// 用户相关
Mock.mock(/\/user\/getUser/, 'get', userApi.getUserList)
Mock.mock(/\/user\/del/, 'get', userApi.deleteUser)
Mock.mock(/\/user\/batchremove/, 'get', userApi.batchremove)
Mock.mock(/\/user\/add/, 'post', userApi.createUser)
Mock.mock(/\/user\/edit/, 'post', userApi.updateUser)
Mock.mock(/\/home\/getData/, 'get', homeApi.getStatisticalData)
import Mock from 'mockjs'

// 图表数据
let List = []
export default {
  getStatisticalData: () => {
    for (let i = 0; i < 7; i++) {
      List.push(
        Mock.mock({
          vue: Mock.Random.float(100, 8000, 0, 2),
          wechat: Mock.Random.float(100, 8000, 0, 2),
          ES6: Mock.Random.float(100, 8000, 0, 2),
          Redis: Mock.Random.float(100, 8000, 0, 2),
          React: Mock.Random.float(100, 8000, 0, 2),
          springboot: Mock.Random.float(100, 8000, 0, 2)
        })
      )
    }
    return {
      code: 20000,
      data: {
        // 饼图
        videoData: [
          {
            name: 'springboot',
            value: Mock.Random.float(1000, 10000, 0, 2)
          },
          {
            name: 'vue',
            value: Mock.Random.float(1000, 10000, 0, 2)
          },
          {
            name: '小程序',
            value: Mock.Random.float(1000, 10000, 0, 2)
          },
          {
            name: 'ES6',
            value: Mock.Random.float(1000, 10000, 0, 2)
          },
          {
            name: 'Redis',
            value: Mock.Random.float(1000, 10000, 0, 2)
          },
          {
            name: 'React',
            value: Mock.Random.float(1000, 10000, 0, 2)
          }
        ],
        // 柱状图
        userData: [
          {
            date: '周一',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          },
          {
            date: '周二',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          },
          {
            date: '周三',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          },
          {
            date: '周四',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          },
          {
            date: '周五',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          },
          {
            date: '周六',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          },
          {
            date: '周日',
            new: Mock.Random.integer(1, 100),
            active: Mock.Random.integer(100, 1000)
          }
        ],
        // 折线图
        orderData: {
          date: ['20191001', '20191002', '20191003', '20191004', '20191005', '20191006', '20191007'],
          data: List
        },
        tableData: [
          {
            name: 'ES6',
            todayBuy: Mock.Random.float(100, 1000, 0, 2),
            monthBuy: Mock.Random.float(3000, 5000, 0, 2),
            totalBuy: Mock.Random.float(40000, 1000000, 0, 2)
          },
          {
            name: '小程序',
            todayBuy: Mock.Random.float(100, 1000, 0, 2),
            monthBuy: Mock.Random.float(3000, 5000, 0, 2),
            totalBuy: Mock.Random.float(40000, 1000000, 0, 2)
          },
          {
            name: 'Vue',
            todayBuy: Mock.Random.float(100, 1000, 0, 2),
            monthBuy: Mock.Random.float(3000, 5000, 0, 2),
            totalBuy: Mock.Random.float(40000, 1000000, 0, 2)
          },
          {
            name: 'springboot',
            todayBuy: Mock.Random.float(100, 1000, 0, 2),
            monthBuy: Mock.Random.float(3000, 5000, 0, 2),
            totalBuy: Mock.Random.float(40000, 1000000, 0, 2)
          },
          {
            name: 'React',
            todayBuy: Mock.Random.float(100, 1000, 0, 2),
            monthBuy: Mock.Random.float(3000, 5000, 0, 2),
            totalBuy: Mock.Random.float(40000, 1000000, 0, 2)
          },
          {
            name: 'Redis',
            todayBuy: Mock.Random.float(100, 1000, 0, 2),
            monthBuy: Mock.Random.float(3000, 5000, 0, 2),
            totalBuy: Mock.Random.float(40000, 1000000, 0, 2)
          }
        ]
      }
    }
  }
}
home.js
import Mock from 'mockjs'

// get请求从config.url获取参数,post从config.body中获取参数
function param2Obj(url) {
  const search = url.split('?')[1]
  if (!search) {
    return {}
  }
  return JSON.parse(
    '{"' +
      decodeURIComponent(search)
        .replace(/"/g, '\\"')
        .replace(/&/g, '","')
        .replace(/=/g, '":"') +
      '"}'
  )
}
let List = []
const count = 200
for (let i = 0; i < count; i++) {
  List.push(
    Mock.mock({
      id: Mock.Random.guid(),
      name: Mock.Random.cname(),
      addr: Mock.mock('@county(true)'),
      'age|18-60': 1,
      birth: Mock.Random.date(),
      sex: Mock.Random.integer(0, 1)
    })
  )
}

export default {
  /**
   * 获取列表
   * 要带参数 name, page, limt; name可以不填, page,limit有默认值。
   * @param name, page, limit
   * @return {{code: number, count: number, data: *[]}}
   */
  getUserList: config => {
    const { name, page = 1, limit = 20 } = param2Obj(config.url)
    console.log('name:' + name, 'page:' + page, '分页大小limit:' + limit)
    const mockList = List.filter(user => {
      if (name && user.name.indexOf(name) === -1 && user.addr.indexOf(name) === -1) return false
      return true
    })
    const pageList = mockList.filter((item, index) => index < limit * page && index >= limit * (page - 1))
    return {
      code: 20000,
      count: mockList.length,
      list: pageList
    }
  },
  /**
   * 增加用户
   * @param name, addr, age, birth, sex
   * @return {{code: number, data: {message: string}}}
   */
  createUser: config => {
    const { name, addr, age, birth, sex } = JSON.parse(config.body)
    console.log(JSON.parse(config.body))
    List.unshift({
      id: Mock.Random.guid(),
      name: name,
      addr: addr,
      age: age,
      birth: birth,
      sex: sex
    })
    return {
      code: 20000,
      data: {
        message: '添加成功'
      }
    }
  },
  /**
   * 删除用户
   * @param id
   * @return {*}
   */
  deleteUser: config => {
    const { id } = param2Obj(config.url)
    if (!id) {
      return {
        code: -999,
        message: '参数不正确'
      }
    } else {
      List = List.filter(u => u.id !== id)
      return {
        code: 20000,
        message: '删除成功'
      }
    }
  },
  /**
   * 批量删除
   * @param config
   * @return {{code: number, data: {message: string}}}
   */
  batchremove: config => {
    let { ids } = param2Obj(config.url)
    ids = ids.split(',')
    List = List.filter(u => !ids.includes(u.id))
    return {
      code: 20000,
      data: {
        message: '批量删除成功'
      }
    }
  },
  /**
   * 修改用户
   * @param id, name, addr, age, birth, sex
   * @return {{code: number, data: {message: string}}}
   */
  updateUser: config => {
    const { id, name, addr, age, birth, sex } = JSON.parse(config.body)
    const sex_num = parseInt(sex)
    List.some(u => {
      if (u.id === id) {
        u.name = name
        u.addr = addr
        u.age = age
        u.birth = birth
        u.sex = sex_num
        return true
      }
    })
    return {
      code: 20000,
      data: {
        message: '编辑成功'
      }
    }
  }
}
user.js

mockjs

Mock.mock( rurl, rtype, function( options ) )
Mock.mock( rurl, rtype, template )
表示当拦截到rurl和rtype的ajax请求时,将根据数据模板template生成模拟数据,并作为响应数据返回。

Mock.mock( rurl, rtype, function( options ) )
记录用于生成响应数据的函数。当拦截到匹配 rurl 和 rtype 的 Ajax 请求时,函数 function(options) 将被执行,并把执行结果作为响应数据返回。
其中:
rurl 可选
表示要拦截的url,可以使字符串,也可以是正则
rtype 可选
表示要拦截的ajax请求方式,如get、post
template 可选
数据模板,可以是对象也可以是字符串
function(option) 可选
表示用于生成响应数据的函数

3.main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'


//全局配置
import http from '@/api/config'
import './mock'

//第三方包

Vue.prototype.$http = http
Vue.config.productionTip = false

new Vue({
  router,
  store,
  render: h => h(App)
}).$mount('#app')

4、组件中的方法如何使用:

      this.$http.get('/home/getData').then(res => {
        //
      })

 

posted @ 2020-10-16 20:00  -零  阅读(10034)  评论(0编辑  收藏  举报