目录
前言：
本篇博客也是接着上篇博客进行编码的，在上篇博客结果的基础上进行增加动态树以及列表查询
本次目标：
- 树形菜单功能实现
- 书籍列表查询
一、树形菜单功能实现
我们前面用到了mockjs，那么我们需要把其映射去掉，因为这篇博客所用到的不需要考虑跨域问题
首先我们搭建原生的模块，我们数据库只有两级关系，所以我们先把动态树改成两级关系
然后通过钩子函数向后台调用接口，拿到数据，在把拿到的值赋值给对应的值即可
LeftNav.vue
<template>
<el-menu router :default-active="$route.path" default-active="2" class="el-menu-vertical-demo" background-color="#334157" text-color="#fff"
active-text-color="#ffd04b" :collapse="collapsed">
<!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$route.path" unique-opened class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b"> -->
<div class="logobox">
<img class="logoimg" src="../assets/img/logo.png" alt="">
</div>
<el-submenu v-for="m in menus" :index="'id_'+m.treeNodeId">
<template slot="title">
<i :class="m.icon"></i>
<span>{{m.treeNodeName}}</span>
</template>
<el-menu-item v-for="n in m.children" :key="'id_'+n.treeNodeId" :index="n.url">
<i :class="n.icon"></i>
<span>{{n.treeNodeName}}</span>
</el-menu-item>
</el-submenu>
</el-menu>
</template>
<script>
export default {
data() {
return {
collapsed: false,
menus:[]
}
},
//钩子函数
created() {
//从总线上取出this,collapsed变量
this.$root.Bus.$on("collapsed-side", v => {
this.collapsed = v;
});
let url = this.axios.urls.SYSTEM_MENU_TREE;
this.axios.post(url, {})
.then(resp => { //箭头函数 jdk8的语法
//成功的回调函数
console.log(resp);
this.menus = resp.data.result;
})
.catch(function() { // 代表失败
});
}
}
</script>
<style>
.el-menu-vertical-demo:not(.el-menu--collapse) {
width: 240px;
min-height: 400px;
}
.el-menu-vertical-demo:not(.el-menu--collapse) {
border: none;
text-align: left;
}
.el-menu-item-group__title {
padding: 0px;
}
.el-menu-bg {
background-color: #1f2d3d !important;
}
.el-menu {
border: none;
}
.logobox {
height: 40px;
line-height: 40px;
color: #9d9d9d;
font-size: 20px;
text-align: center;
padding: 20px 0px;
}
.logoimg {
height: 40px;
}
</style>
结果
二、书籍列表查询
实现思路:
1.利用el-table组件搭建基本表格
2.利用axios调用后台的文章查询接口->created
3.利用el-pagination分页组件
size-change 页大小改变事件
current-change 页码改变调用事件
4.优化，将调用的后台的文章查询接口的代码进行封装，利于复用
5.el-form 查询的筛选条件
首先我们创建一个新的文章管理
Articles.vue
<template>
<div>
<!-- 搜索筛选-->
<el-form :inline="true" :model="formInline" class="user-search">
<el-form-item label="搜索：">
<el-input size="small" v-model="formInline.title" placeholder="输入文章标题"></el-input>
</el-form-item>
<el-form-item>
<el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索</el-button>
<el-button size="small" type="primary" icon="el-icon-plus" @click="handleEdit()">添加</el-button>
</el-form-item>
</el-form>
<!--列表-->
<el-table size="small" :data="listData" highlight-current-row style="width: 100%;">
<el-table-column align="center" type="selection" min-width="60">
</el-table-column>
<el-table-column sortable prop="id" label="文章ID" min-width="300">
</el-table-column>
<el-table-column sortable prop="title" label="文章标题" min-width="300">
</el-table-column>
<el-table-column sortable prop="body" label="文章内容" min-width="300">
</el-table-column>
<el-table-column align="center" label="操作" min-width="300">
<template slot-scope="scope">
<el-button size="mini" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
<el-button size="mini" type="danger" @click="deleteUser(scope.$index, scope.row)">删除</el-button>
</template>
</el-table-column>
</el-table>
<!-- 分页条 -->
<el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
:current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="100"
layout="total, sizes, prev, pager, next, jumper" :total="formInline.total">
</el-pagination>
<!-- 编辑界面 -->
<el-dialog :title="title" :visible.sync="editFormVisible" width="30%" @before-close="closeDialog">
<el-form label-width="120px" :model="editForm" :rules="rules" ref="editForm">
<el-form-item label="文章标题" prop="title">
<el-input size="small" v-model="editForm.title" auto-complete="off" placeholder="请输入文章标题"></el-input>
</el-form-item>
<el-form-item label="文章内容" prop="body">
<el-input size="small" v-model="editForm.body" auto-complete="off" placeholder="请输入文章内容"></el-input>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button size="small" @click="closeDialog">取消</el-button>
<el-button size="small" type="primary" class="title" @click="submitForm('editForm')">保存</el-button>
</div>
</el-dialog>
</div>
</template>
<script>
export default {
name: 'Articles',
data() {
return {
title: '',
editFormVisible: false,
editForm: {
title: '',
body: '',
id: 0
},
rules: {
title: [{
required: true,
message: '请输入文章标题',
trigger: 'blur'
},
{
min: 5,
max: 10,
message: '长度须在 5 到 10 个字符之间',
trigger: 'blur'
}
],
body: [{
required: true,
message: '请输入文章内容',
trigger: 'blur'
}],
},
listData: [],
formInline: {
page: 1,
total: 10,
title: ''
}
}
},
methods: {
handleSizeChange(rows) {
// console.log("页面发生改变")
this.formInline.page = 1;
this.formInline.rows = rows;
this.search();
},
handleCurrentChange(page) {
// console.log("当前页码发生改变")
this.formInline.page = page;
this.search();
},
//是为了代码复用
doSearch(param) {
// 获取树形节点的数据
let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
//this指的是vue实例
this.axios.post(url, param)
.then(resp => { //代表成功 箭头函数 jdk8的语法
console.log(resp);
this.listData = resp.data.result;
this.formInline = resp.data.pageBean;
}).catch(function() { //代表失败
});
},
search() {
// 按照条件进行查询
this.doSearch(this.formInline);
},
closeDialog() {
// 关闭窗体
this.clearData();
},
clearData() {
//清除编辑窗体的缓存数据
this.editForm.title = '';
this.editForm.id = 0;
this.editForm.body = '';
this.title = '';
this.editFormVisible = false;
},
handleEdit(index, row) {
this.clearData();
// 展示新增文章的表单
this.editFormVisible = true;
if (row) {
// 编辑
this.title = '编辑窗体';
this.editForm.id = row.id;
this.editForm.title = row.title;
this.editForm.body = row.body
} else {
//新增
this.title = '新增窗体';
}
},
deleteUser(index, row) {
this.$confirm('此操作将永久删除该文章, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => {
let url = this.axios.urls.SYSTEM_ARTICLE_DEL;
this.axios.post(url, {
id: row.id
}).then(r => {
// 新增成功之后，1、关闭窗体 ，清空数据 2、重新查询
this.$message({
message: r.data.msg,
type: 'success'
});
this.closeDialog();
this.search();
}).catch(e => {
})
}).catch(() => {
this.$message({
type: 'info',
message: '已取消删除'
});
});
},
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
let url;
if (this.editForm.id == 0) {
//新增
url = this.axios.urls.SYSTEM_ARTICLE_ADD;
} else {
//修改
url = this.axios.urls.SYSTEM_ARTICLE_EDIT;
}
this.axios.post(url, this.editForm).then(r => {
// 新增成功之后，1、关闭窗体 ，清空数据 2、重新查询
this.$message({
message: r.data.msg,
type: 'success'
});
this.closeDialog();
this.search();
}).catch(e => {
})
} else {
console.log('error submit!!');
return false;
}
});
}
},
created() {
this.doSearch({});
}
}
</script>
<style scoped>
</style>
在我们的AppMain主页设计路由
然后在左侧的树形菜单LeftNav添加点击事件
LeftNav
<template>
<el-menu router :default-active="$route.path" default-active="2" class="el-menu-vertical-demo"
background-color="#334157" text-color="#fff" active-text-color="#ffd04b" :collapse="collapsed">
<!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$route.path" unique-opened class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b"> -->
<div class="logobox">
<img class="logoimg" src="../assets/img/logo.png" alt="">
</div>
<el-submenu :index="'id_'+m.treeNodeId" v-for="m in menus" :key="'id_'+m.treeNodeId">
<template slot="title">
<i :class="m.icon"></i>
<span>{{m.treeNodeName}}</span>
</template>
<el-menu-item :key="'id_'+m2.treeNodeId" :index="m2.url" v-for="m2 in m.children">
<i :class="m2.icon"></i>
<span>{{m2.treeNodeName}}</span>
</el-menu-item>
</el-submenu>
</el-menu>
</template>
<script>
export default {
data() {
return {
collapsed: false,
menus: []
}
},
created() {
//从总线上取出this.collapsed变量
this.$root.Bus.$on("collapsed-side", v => {
this.collapsed = v;
});
// 要获取树形节点的数据
let url = this.axios.urls.SYSTEM_MENU_TREE;
this.axios.post(url, {})
.then(resp => { //代表成功
console.log(resp);
this.menus = resp.data.result
}).catch(function() { //代表失败
});
}
}
</script>
<style>
.el-menu-vertical-demo:not(.el-menu--collapse) {
width: 240px;
min-height: 400px;
}
.el-menu-vertical-demo:not(.el-menu--collapse) {
border: none;
text-align: left;
}
.el-menu-item-group__title {
padding: 0px;
}
.el-menu-bg {
background-color: #1f2d3d !important;
}
.el-menu {
border: none;
}
.logobox {
height: 40px;
line-height: 40px;
color: #9d9d9d;
font-size: 20px;
text-align: center;
padding: 20px 0px;
}
.logoimg {
height: 40px;
}
</style>
然后挂在到主键上，写一个新的配置
router/index.js
import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from "@/components/HelloWorld";
import AppMain from "@/components/AppMain";
import LeftNav from "@/components/LeftNav";
import TopNav from "@/components/TopNav";
import Login from "@/views/Login";
import Reg from "@/views/Reg";
import Articles from "@/views/sys/Articles";
Vue.use(Router)
export default new Router({
routes: [
{
path: '/',
name: 'Login',
component: Login
},
{
path: '/Login',
name: 'Login',
component: Login
},
{
path: '/Reg',
name: 'Reg',
component: Reg
},
{
path: '/AppMain',
name: 'AppMain',
component: AppMain,
children:[
{
path: '/LeftNav',
name: 'LeftNav',
component: LeftNav
},
{
path: '/TopNav',
name: 'TopNav',
component: TopNav
},
{
path: '/sys/Articles',
name: 'Articles',
component: Articles
}
]
}
]
})
效果：
模糊查询：
我们就搞定了！
今天分享的知识就到这里啦！我们下次再见！
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