凌上鑫-实训项目1.2.3

1.安装 nodejs

2.安装 git

3.下载vue-element-admin

建议

本项目的定位是后台集成方案，不太适合当基础模板来进行二次开发。因为本项目集成了很多你可能用不到的功能，会造成不少的代码冗余。如果你的项目不关注这方面的问题，也可以直接基于它进行二次开发。

集成方案:vue-element-admin

基础模板:vue-admin-template

桌面终端:electron-vue-admin

Typescript 版:vue-typescript-admin-template(鸣谢:@Armour)

Others:awesome-project

# clone the projectgit clone https://github.com/PanJiaChen/vue-admin-template.git# enter the project directorycd vue-admin-template# install dependencynpm install# developnpm run dev

启动成功

启动成功图片

删除多余界面 router/index

删除后的界面如下

importVuefrom'vue'importRouterfrom'vue-router'Vue.use(Router)/* Layout */importLayoutfrom'@/layout'/**

* Note: sub-menu only appear when route children.length >= 1

* Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html

*

* hidden: true                  if set true, item will not show in the sidebar(default is false)

* alwaysShow: true              if set true, will always show the root menu

*                                if not set alwaysShow, when item has more than one children route,

*                                it will becomes nested mode, otherwise not show the root menu

* redirect: noRedirect          if set noRedirect will no redirect in the breadcrumb

* name:'router-name'            the name is used by (must set!!!)

* meta : {

    roles: ['admin','editor']    control the page roles (you can set multiple roles)

    title: 'title'              the name show in sidebar and breadcrumb (recommend set)

    icon: 'svg-name'            the icon show in the sidebar

    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)

    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set

  }

*//**

* constantRoutes

* a base page that does not have permission requirements

* all roles can be accessed

*/exportconstconstantRoutes=[{path:'/login',component:()=>import('@/views/login/index'),hidden:true},{path:'/404',component:()=>import('@/views/404'),hidden:true},{path:'/',component:Layout,redirect:'/dashboard',children:[{path:'dashboard',name:'Dashboard',component:()=>import('@/views/dashboard/index'),meta:{title:'Dashboard',icon:'dashboard'}}]},// 404 page must be placed at the end !!!{path:'*',redirect:'/404',hidden:true}]constcreateRouter=()=>newRouter({// mode: 'history', // require service supportscrollBehavior:()=>({y:0}),routes:constantRoutes})constrouter=createRouter()// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465exportfunctionresetRouter(){constnewRouter=createRouter()router.matcher=newRouter.matcher// reset router}exportdefaultrouter

安装ES6语法插件

npm install --save es6-promise

本人使用了自己写的Axios 插件

http.js存放位置

http.js ↓

importVuefrom'vue';importAxiosfrom'axios';import{Promise}from'es6-promise';import{MessageBox,Message}from'element-ui'Axios.defaults.timeout=30000;// 1分钟Axios.defaults.baseURL='';Axios.interceptors.request.use(function(config){// Do something before request is sent//change method for get/*if(process.env.NODE_ENV == 'development'){

      config['method'] = 'GET';

      console.log(config)

  }*/if(config['MSG']){// Vue.prototype.$showLoading(config['MSG']);}else{// Vue.prototype.$showLoading();}// if(user.state.token){//用户登录时每次请求将token放入请求头中//  config.headers["token"] = user.state.token;// }if(config['Content-Type']==='application/x-www-form-urlencoded;'){//默认发application/json请求，如果application/x-www-form-urlencoded;需要使用transformRequest对参数进行处理/*config['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8';*/config.headers['Content-Type']='application/x-www-form-urlencoded;charset=UTF-8';config['transformRequest']=function(obj){varstr=[];for(varpinobj)str.push(encodeURIComponent(p)+"="+encodeURIComponent(obj[p]));returnstr.join("&")};}//config.header['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8';returnconfig;},function(error){// Do something with request error// Vue.$vux.loading.hide()returnPromise.reject(error);});Axios.interceptors.response.use(response=>{// Vue.$vux.loading.hide();returnresponse.data;},error=>{// Vue.$vux.loading.hide();if(error.response){switch(error.response.status){case404:Message({message:''||'Error',type:'error',duration:5*1000})break;default:Message({message:''||'Error',type:'error',duration:5*1000})}}elseif(errorinstanceofError){console.error(error);}else{Message({message:''||'Error',type:'error',duration:5*1000})}returnPromise.reject(error.response);});exportdefaultVue.prototype.$http=Axios;

配置axios代理：

vue.config.js

vue.config.js ↓

'use strict'constpath=require('path')constdefaultSettings=require('./src/settings.js')functionresolve(dir){returnpath.join(__dirname,dir)}constname=defaultSettings.title||'vue Admin Template'// page title// If your port is set to 80,// use administrator privileges to execute the command line.// For example, Mac: sudo npm run// You can change the port by the following methods:// port = 9528 npm run dev OR npm run dev --port = 9528constport=process.env.port||process.env.npm_config_port||9528// dev port// All configuration item explanations can be find in https://cli.vuejs.org/config/module.exports={/**

  * You will need to set publicPath if you plan to deploy your site under a sub path,

  * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,

  * then publicPath should be set to "/bar/".

  * In most cases please use '/' !!!

  * Detail: https://cli.vuejs.org/config/#publicpath

  */publicPath:'/',outputDir:'dist',assetsDir:'static',lintOnSave:process.env.NODE_ENV==='development',productionSourceMap:false,devServer:{port:port,open:true,overlay:{warnings:false,errors:true},proxy:{// change xxx-api/login => mock/login// detail: https://cli.vuejs.org/config/#devserver-proxy[process.env.VUE_APP_BASE_API]:{target:`http://127.0.0.1:${port}/mock`,changeOrigin:true,pathRewrite:{['^'+process.env.VUE_APP_BASE_API]:''}},['/api']:{target:`http://127.0.0.1:3000`,changeOrigin:true,pathRewrite:{['^'+'/api']:''}}},after:require('./mock/mock-server.js')},configureWebpack:{// provide the app's title in webpack's name field, so that// it can be accessed in index.html to inject the correct title.name:name,resolve:{alias:{'@':resolve('src')}}},chainWebpack(config){config.plugins.delete('preload')// TODO: need testconfig.plugins.delete('prefetch')// TODO: need test// set svg-sprite-loaderconfig.module.rule('svg').exclude.add(resolve('src/icons')).end()config.module.rule('icons').test(/\.svg$/).include.add(resolve('src/icons')).end().use('svg-sprite-loader').loader('svg-sprite-loader').options({symbolId:'icon-[name]'}).end()// set preserveWhitespaceconfig.module.rule('vue').use('vue-loader').loader('vue-loader').tap(options=>{options.compilerOptions.preserveWhitespace=truereturnoptions}).end()config// https://webpack.js.org/configuration/devtool/#development.when(process.env.NODE_ENV==='development',config=>config.devtool('cheap-source-map'))config.when(process.env.NODE_ENV!=='development',config=>{config.plugin('ScriptExtHtmlWebpackPlugin').after('html').use('script-ext-html-webpack-plugin',[{// `runtime` must same as runtimeChunk name. default is `runtime`inline:/runtime\..*\.js$/}]).end()config.optimization.splitChunks({chunks:'all',cacheGroups:{libs:{name:'chunk-libs',test:/[\\/]node_modules[\\/]/,priority:10,chunks:'initial'// only package third parties that are initially dependent},elementUI:{name:'chunk-elementUI',// split elementUI into a single packagepriority:20,// the weight needs to be larger than libs and app or it will be packaged into libs or apptest:/[\\/]node_modules[\\/]_?element-ui(.*)/// in order to adapt to cnpm},commons:{name:'chunk-commons',test:resolve('src/components'),// can customize your rulesminChunks:3,//  minimum common numberpriority:5,reuseExistingChunk:true}}})config.optimization.runtimeChunk('single')})}}

main.js中加入http

importhttpfrom'./utils/http'Vue.use(http)

调用接口：

index.vue

index.vue ↓

.dashboard {    &-container {      margin: 30px;    }    &-text {      font-size: 30px;      line-height: 46px;    }  }

6.全局安装koa-generator,执行下面命令

npm install -g koa-generator

7.构建koa2项目代码如下

koa2 projectName

构建成功信息：

D:\project>koa2 projectName  create:projectName  create:projectName/package.json  create:projectName/app.js  create:projectName/publiccreate:projectName/public/images  create:projectName/routes  create:projectName/routes/index.js  create:projectName/routes/users.js  create:projectName/views  create:projectName/views/index.pug  create:projectName/views/layout.pug  create:projectName/views/error.pug  create:projectName/public/stylesheets  create:projectName/public/stylesheets/style.css  create:projectName/bin  create:projectName/bin/www  install dependencies:>cd projectName&&npm install  run the app:>SETDEBUG=koa*&npm start projectName  create:projectName/public/javascriptsD:\project>

初始化后台项目插件，命令属下:

cd projectName

初始化项目，如果没有安装git会报错.

npm install

项目试运行

npm run dev

这里koa2模板提示信息做的并不好，没有输出测试地址，成功后出现如下界面代表成功了。

D:\project\projectName>npm run dev>[email protected] D:\project\projectName>nodemon bin/www[nodemon]1.19.4[nodemon]to restart at any time,enter `rs`[nodemon]watchingdir(s):*.*[nodemon]watching extensions:js,mjs,json[nodemon]starting `node bin/www`

在浏览器打开地址：

http://localhost:3000/

出现koa2的欢迎界面就代表成功了。

8.安装本地mongodb或者在mongodb官网新建免费的云端服务器。

本人在这里用的mongodb免费云端数据库。

抱歉密码不能公开，请自行换成自己的密码

链接如下：

本人数据库名为test

mongodb+srv://xxwozixin:@cluster0-7d5kk.mongodb.net/test?retryWrites=true&w=majority

安装mongoose

npm install mongoose --save

在第7步建好的nodejs项目中根目录创建db目录

作者用的webstorm,可以根据自己需要下载编辑器

db目录

下面代码中连接密码需要修改成自己的

config.js ↓

module.exports={// dbs: 'mongodb://139.159.253.110:27017/test1'dbs:'mongodb+srv://xxwozixin:<需要修改>@cluster0-7d5kk.mongodb.net/test?retryWrites=true&w=majority'}

user.js ↓

constmongoose=require('mongoose')constfeld={name:String,age:Number,//人物标签labels:Number}//自动添加更新时间创建时间:letpersonSchema=newmongoose.Schema(feld,{timestamps:{createdAt:'created',updatedAt:'updated'}})module.exports=mongoose.model('User',personSchema)

修改根目录app.js

app.js

app.js ↓

constKoa=require('koa')constapp=newKoa()constviews=require('koa-views')constjson=require('koa-json')constonerror=require('koa-onerror')constbodyparser=require('koa-bodyparser')constlogger=require('koa-logger')constindex=require('./routes/index')constusers=require('./routes/users')constmongoose=require('mongoose')constdbconfig=require('./db/config')mongoose.connect(dbconfig.dbs,{useNewUrlParser:true,useUnifiedTopology:true})constdb=mongoose.connectiondb.on('error',console.error.bind(console,'connection error:'));db.once('open',function(){console.log('mongoose 连接成功')});// error handleronerror(app)// middlewaresapp.use(bodyparser({enableTypes:['json','form','text']}))app.use(json())app.use(logger())app.use(require('koa-static')(__dirname+'/public'))app.use(views(__dirname+'/views',{extension:'pug'}))// loggerapp.use(async(ctx,next)=>{conststart=newDate()awaitnext()constms=newDate()-startconsole.log(`${ctx.method} ${ctx.url} - ${ms}ms`)})// routesapp.use(index.routes(),index.allowedMethods())app.use(users.routes(),users.allowedMethods())// error-handlingapp.on('error',(err,ctx)=>{console.error('server error',err,ctx)});module.exports=app// error handleronerror(app)// middlewaresapp.use(bodyparser({enableTypes:['json','form','text']}))app.use(json())app.use(logger())app.use(require('koa-static')(__dirname+'/public'))app.use(views(__dirname+'/views',{extension:'pug'}))// loggerapp.use(async(ctx,next)=>{conststart=newDate()awaitnext()constms=newDate()-startconsole.log(`${ctx.method} ${ctx.url} - ${ms}ms`)})// routesapp.use(index.routes(),index.allowedMethods())app.use(users.routes(),users.allowedMethods())// error-handlingapp.on('error',(err,ctx)=>{console.error('server error',err,ctx)});module.exports=app

user.js ↓

constrouter=require('koa-router')()constUser=require('../db/models/user')router.prefix('/users')router.get('/add',function(ctx,next){ctx.body='this is a users/bar response'})router.get('/',function(ctx,next){ctx.body='this is a users response!'})router.get('/bar',function(ctx,next){ctx.body='this is a users/bar response'})module.exports=router

重启项目

关掉前面我们启动的服务在运行

npm run dev

如下结果代表成功连接数据库

目标：学校管理

微信图片_20191208212146.png

一、后台三步骤：

1、打开projectName文件，在models目录下创建school.js文件，接着文件操作：

constmongoose=require('mongoose')constfeld={name:String,//人物标签where:String,leixing:String}//自动添加更新时间创建时间:letpersonSchema=newmongoose.Schema(feld,{timestamps:{createdAt:'created',updatedAt:'updated'}})module.exports=mongoose.model('School',personSchema)

2、找到projectName下的routes目录：

constrouter=require('koa-router')()//建立模块，require(“../db/models/文件名”)letModel=require("../db/models/school");router.prefix('/school')router.get('/',function(ctx,next){ctx.body='this is a users response!'})//数据库增删改查router.post('/add',asyncfunction(ctx,next){console.log(ctx.request.body)letmodel=newModel(ctx.request.body);model=awaitmodel.save();console.log('user',model)ctx.body=model})router.post('/find',asyncfunction(ctx,next){letmodels=awaitModel.find({})ctx.body=models})router.post('/get',asyncfunction(ctx,next){// let users = await User.// find({})console.log(ctx.request.body)letmodel=awaitModel.find(ctx.request.body)console.log(model)ctx.body=model})router.post('/update',asyncfunction(ctx,next){console.log(ctx.request.body)letpbj=awaitModel.update({_id:ctx.request.body._id},ctx.request.body);ctx.body=pbj})router.post('/delete',asyncfunction(ctx,next){console.log(ctx.request.body)awaitModel.remove({_id:ctx.request.body._id});ctx.body='shibai '})module.exports=router

3.在app.js中挂载路由：

constschool=require('./routes/school')app.use(school.routes(),school.allowedMethods())

二、前台三步骤：

打开vue-admin-template-master文件，在src/views目录下创建一个school模块：

11.png

并在school目录下创建vue文件。

1.editor.vue为编辑文件，用于创建学校记录；

22.png

.dashboard {    &-container {      margin: 30px;    }    &-text {      font-size: 30px;      line-height: 46px;    }  }

2.index.vue为目录文件，用于显示结果；

33.png

.dashboard {    &-container {      margin: 30px;    }    &-text {      font-size: 30px;      line-height: 46px;    }  }

3.在index.js中添加路由：

{path:'/school',component:Layout,meta:{title:'学校管理',icon:'example'},redirect:'school',children:[{path:'school',name:'school',component:()=>import('@/views/school'),meta:{title:'学校管理',icon:'school'}},{path:'editor',name:'editor',component:()=>import('@/views/school/editor'),meta:{title:'添加学校',icon:'school'}}]},

目标：创建学院管理模块（学院和学校关联起来）

一、后台三步骤：

1、打开projectName文件，在models目录下创建academy.js文件，接着文件操作：

constmongoose=require('mongoose')constSchema=mongoose.Schemaconstfeld={name:String,//人物标签major:String,renshu:Number,school:{type:Schema.Types.ObjectId,ref:'School'}}//自动添加更新时间创建时间:letschema=newSchema(feld,{timestamps:{createdAt:'created',updatedAt:'updated'}})module.exports=mongoose.model('Academy',schema)

2、找到projectName下的routes目录，创建academy.js文件：

constrouter=require('koa-router')()letModel=require("../db/models/academy");router.prefix('/academy')router.get('/',function(ctx,next){ctx.body='this is a users response!'})router.post('/add',asyncfunction(ctx,next){console.log(ctx.request.body)letmodel=newModel(ctx.request.body);model=awaitmodel.save();console.log('user',model)ctx.body=model})router.post('/find',asyncfunction(ctx,next){letmodels=awaitModel.find({}).populate('school')ctx.body=models})router.post('/get',asyncfunction(ctx,next){// let users = await User.// find({})console.log(ctx.request.body)letmodel=awaitModel.find(ctx.request.body)console.log(model)ctx.body=model})router.post('/update',asyncfunction(ctx,next){console.log(ctx.request.body)letpbj=awaitModel.update({_id:ctx.request.body._id},ctx.request.body);ctx.body=pbj})router.post('/delete',asyncfunction(ctx,next){console.log(ctx.request.body)awaitModel.remove({_id:ctx.request.body._id});ctx.body='shibai '})module.exports=router

3.在app.js中挂载路由：

constacademy=require('./routes/academy')app.use(academy.routes(),academy.allowedMethods())

二、前台三步骤：

打开vue-admin-template-master文件，在src/views目录下创建一个academy模块：

academy.png

并在academy目录下创建vue文件。

1.editor.vue为编辑文件，用于创建学院记录；

添加学院.png

.dashboard {    &-container {      margin: 30px;    }    &-text {      font-size: 30px;      line-height: 46px;    }  }

2.index.vue为目录文件，用于显示结果；

学院管理.png

编辑删除

.dashboard {    &-container {      margin: 30px;    }    &-text {      font-size: 30px;      line-height: 46px;    }  }

3.在index.js中添加路由：

{path:'/academy',component:Layout,meta:{title:'学院管理',icon:'example'},redirect:'academy',children:[{path:'academy',name:'academy',component:()=>import('@/views/academy'),meta:{title:'学院管理',icon:'academy'}},{path:'editor',name:'editor',component:()=>import('@/views/academy/editor'),meta:{title:'添加学院',icon:'academy'}}]},