dotnetcore+vue+elementUI 前后端分离三（前端篇）

说明：

本项目使用了 mysql employees数据库，使用了vue + axois + element UI 2.0 ,演示了单页程序架构 ,vue router 的使用，axois 使用，以及 element UI 控件的使用。通过这几种技术的组合，实现了对 employee 的增，删。查，改，分页操作，展示了在实际项目中，Vue 结合 elementUI 如何在前端项目中使用。

路由

说白了就是，页面的跳转如何控制。

当用户点击了部门信息就需要展示部门信息的；点击了员工信息就需要展示员工的总体信息，点击员工列表中明细信息就需要跳转到该员工的明细信息。如下图所示：

在传统的web程序中，跳转是由连接来控制的，不同的连接可以跳转到具体的页面，也可以在mvc 结构中，不同的路由地址，由controller返回不同的view。

在SPA单页程序中，路由一般是由专门的Router 来控制，而且Router是前端的组件，而不是由后端来控制的。

在本项目中，Vue 路由组件使用的是 Vue-Router，部门，员工列表信息，员工明细信息，都是一个个活生生 vue 组件，是前端组件，而不是一个页面。这种方式也是把web前端开发带入了组件化开发模式，

相对传统的web开发模式，进步可不是一点点。

项目结构：

核心组件介绍：

main.js

import Vue from 'vue'

import ElementUI from 'element-ui'

import 'element-ui/lib/theme-chalk/index.css'

import App from './App.vue'

import VueRouter from 'vue-router'

import routerMap from './router.js'

// 引入axios以及element ui中的loading和message组件

import axios from 'axios';

import { Loading, Message } from 'element-ui'

 

Vue.use(VueRouter);

Vue.use(ElementUI);

Vue.prototype.$http = axios;

//axios 配置最好提出专门的页面

//axios.defaults.baseURL = "http://localhost:5001/api";

axios.defaults.baseURL = "http://localhost/CMS.API/api";

 

/**

* http配置

*/

// 引入axios以及element ui中的loading和message组件

// 超时时间

axios.defaults.timeout = 5000;

// http请求拦截器

var loadinginstace

axios.interceptors.request.use(config => {

// element ui Loading方法

console.log(config);

loadinginstace = Loading.service({ fullscreen: true })

return config

}, error => {

loadinginstace.close()

Message.error({

message: '加载超时'

})

return Promise.reject(error)

})

// http响应拦截器

axios.interceptors.response.use(data => {// 响应成功关闭loading

loadinginstace.close()

return data

}, error => {

loadinginstace.close()

Message.error({

message: '服务端发生错误'

})

return Promise.reject(error)

})

 

export default axios

 

const router = new VueRouter({ routes: routerMap })

 

const app = new Vue({

router

}).$mount('#app');

axios 拦截器中添加的方法说明：

当http请求发出后，响应为返回前，前端页面弹出遮罩层，显示loading，避免用户在请求未响应前误操作。
当http请求发出后，发生异常后，前端提示用户，后台发生错误。
拦截一次处理了这两种通用的操作，其它地方再也不用以上两种操作。

router.js

/*!

//Router Map　文件

//hbb0b0@163.com

*/

import Help from './components/help/Help.vue';

import Feedback from './components/feedback/Feedback.vue';

import UserInfo from './components/business/UserInfo.vue';

import DepartmentList from './components/business/DepartmentList.vue';

import EmployeeList from './components/business/Employee/EmployeeList.vue';

import EmployeeDetail from './components/business/Employee/EmployeeDetail.vue';

import EmployeeAdd from './components/business/Employee/EmployeeAdd.vue';

import EmployeeEdit from './components/business/Employee/EmployeeEdit.vue';

import App from './App.vue'

export default [{

path: '/index',

component: App,

children: [

{

name: '部门信息',

path: 'departmentList',

component: DepartmentList

},

{

name: '员工信息',

path: 'employee/list',

component: EmployeeList

},

 

{

name: '帮助中心',

path: 'help',

component: Help

},

 

 

{

name: '意见反馈',

path: 'feedback',

component: Feedback

},

{

name:'员工详细信息',

path:'employee/detail/:id',

component:EmployeeDetail

},

{

name:'员工信息编辑',

path:'employee/edit/:id',

component:EmployeeEdit

},

{

name:'员工信息增加',

path:'employee/add/',

component:EmployeeAdd

}

]

},

{

path: '*',

redirect: '/index/departmentList'

}

]

EmployeeList.vue

<template>

<div class="testUser">

<div class="function">

<el-row>

<el-form :model="queryCondition" label-width="150px" class="common-margin common-form" ref="form" :rules="rules">

<el-form-item label="First Name" prop="param.first_Name">

<el-col :span="6">

<el-input placeholder="First Name" v-model="queryCondition.param.first_Name"></el-input>

</el-col>

</el-form-item>

<el-form-item label="Last Name" prop="param.last_Name">

<el-col :span="6">

<el-input placeholder="Last Name" v-model="queryCondition.param.last_Name"></el-input>

</el-col>

</el-form-item>

<el-form-item label="Gender">

<el-col :span="6">

<el-select placeholder="Gender" v-model="queryCondition.param.gender">

<el-option v-for="item in genderStatus" :key="item.value" :label="item.label" :value="item.value">

</el-option>

</el-select>

</el-col>

</el-form-item>

<el-form-item label="Hire Date">

<el-date-picker format="yyyy-MM-dd" value-format="yyyy-MM-dd" :editable="false" v-model="queryCondition.param.hire_date_range" type="daterange" start-placeholder="start " end-placeholder="end" default-value="1980-01-01">

</el-date-picker>

 

</el-form-item>

<el-form-item label="Birth Date">

<el-date-picker format="yyyy-MM-dd" value-format="yyyy-MM-dd" :editable="false" v-model="queryCondition.param.birth_date_range" type="daterange" start-placeholder="start" end-placeholder="end" default-value="1950-01-01"></el-date-picker>

 

</el-form-item>

<el-form-item label="">

<el-button type="primary" icon="el-icon-search" @click="getData()">查询</el-button>

<el-button type="primary" @click="addEmployeeInfo()" icon="el-icon-circle-plus">增加</el-button>

</el-form-item>

</el-form>

</el-row>

</div>

<div style="height: 10px; background-color: rgb(242, 242, 242);"></div>

<div id="table">

<el-table :data="pageList.items" stripe style=" 100%" border>

<el-table-column prop="emp_No" sortable label="No">

</el-table-column>

<el-table-column prop="first_Name" sortable label="First Name">

</el-table-column>

<el-table-column prop="last_Name" sortable label="Last Name">

</el-table-column>

<el-table-column prop="gender" sortable label="Gender">

</el-table-column>

<el-table-column prop="hire_Date_Display" sortable label="Hire Date">

</el-table-column>

<el-table-column prop="birth_Date_Display" sortable label="Birth Date">

</el-table-column>

 

<el-table-column label="操作">

<template slot-scope="scope">

<el-button

@click="getDetail(scope.row)"

type="primary"

size="small" icon="el-icon-info">

</el-button>

<el-button

@click="editEmployeeInfo(scope.row)"

type="primary"

size="small" icon="el-icon-edit">

</el-button>

<el-button

@click="deleteEmployeeInfo(scope.row)"

type="primary"

size="small" icon="el-icon-delete">

</el-button>

</template>

</el-table-column>

</el-table>

<div class="block">

<el-pagination :data="pageList" @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryCondition.pageInfo.pageIndex" :page-sizes="[10,100, 200, 300, 400]" :page-size="queryCondition.pageInfo.pageSize" layout="total, sizes, prev, pager, next, jumper"

:total="pageList.totalCount">

</el-pagination>

</div>

</div>

</div>

</template>

 

<script>

export default {

data() {

return {

input: "",

pageList: [],

genderStatus: [{

vale: "",

label: ""

},

{

value: "F",

label: "Female"

},

{

value: "M",

label: "Male"

}

],

queryCondition: {

 

param: {

first_Name: "",

last_Name: "",

gender: "",

hire_date_range: null,

birth_date_range: null,

 

},

pageInfo: {

pageIndex: 1,

pageSize: 10

}

 

},

rules: {

'param.first_Name': [{

required: false,

message: "只允许字母或数字",

pattern: /[a-zA-Z0-9]/

}]

}

}

},

mounted: function() {

//debugger;

this.getData();

},

methods: {

handleSizeChange(val) {

//debugger;

//console.log(`每页 ${val} 条`);

this.queryCondition.pageInfo.pageSize = val;

this.getData();

},

handleCurrentChange(val) {

//debugger;

this.queryCondition.pageInfo.pageIndex = val;

this.getData();

},

getData() {

let _self = this;

_self.$refs["form"].validate(function(isValid) {

if (isValid) {

let url = "/Employee/query";

//debugger;

_self.$http

.post(url, _self.queryCondition)

.then(function(response) {

//debugger;

//console.log(response.data.data);

_self.pageList = response.data.data;

 

})

.catch(function(error) {

console.log(error);

});

} else {

return false;

}

})

 

},

hire_date_pick(maxDate, minDate) {

//debugger;

alert(maxDate);

},

getDetail(currentRow) {

 

this.$router.push({

path: '/index/employee/detail/' + currentRow.emp_No

});

 

},

editEmployeeInfo(currentRow) {

this.$router.push({

path: '/index/employee/edit/' + currentRow.emp_No

});

},

deleteEmployeeInfo(currentRow) {

this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {

confirmButtonText: '确定',

cancelButtonText: '取消',

type: 'warning'

}).then(() => {

let _self = this;

let url = "/employee/delete/" + currentRow.emp_No;

//debugger;

_self.$http

.post(url)

.then(function(response) {

//debugger;

//console.log(response.data.data);

if (response.data.isSuccess) {

_self.$message({

type: 'success',

message: '删除成功!'

});

 

_self.getData();

} else {

_self.$message.error("删除失败");

}

})

.catch(function(error) {

console.log(error);

});

 

 

}).catch(() => {

this.$message({

type: 'info',

message: '已取消删除'

});

});

},

addEmployeeInfo() {

 

this.$router.push({

path: '/index/employee/add'

});

 

}

}

};

</script>

 

<style scoped>

@import '/static/default.css';

</style>