在src-components-goods中新建List.vue组件,然后打开router.js添加对应的路由规则
<div>
<!-- 面包屑导航 -->
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
<el-breadcrumb-item>商品管理</el-breadcrumb-item>
<el-breadcrumb-item>商品列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图区域 -->
<el-card>
<el-row :gutter="20">
<el-col :span="8">
<el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
<el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
</el-input>
</el-col>
<el-col :span="4">
<el-button type="primary" @click="goAddpage">添加商品</el-button>
</el-col>
</el-row>
<!-- table表格区域 -->
<el-table :data="goodslist" border stripe>
<el-table-column type="index"></el-table-column>
<el-table-column label="商品名称" prop="goods_name"></el-table-column>
<el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
<el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
<el-table-column label="创建时间" prop="add_time" width="140px">
<template slot-scope="scope">
{{scope.row.add_time | dateFormat}}
</template>
</el-table-column>
<el-table-column label="操作" width="130px">
<template slot-scope="scope">
<el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
</template>
</el-table-column>
</el-table>
<!-- 分页区域 -->
<el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background>
</el-pagination>
</el-card>
</div>
//绑定数据以及添加方法
<script>
export default {
data() {
return {
//查询参数
queryInfo: {
query: '',
pagenum: 1,
pagesize: 10
},
//保存商品列表信息
goodsList: [],
//总数据条数
total: 0
}
},
created() {
this.getGoodsList()
},
methods: {
async getGoodsList() {
// 根据分页获取对应的商品列表
const { data: res } = await this.$http.get('goods', {params: this.queryInfo})
if (res.meta.status !== 200) {
return this.$message.error('获取商品列表失败')
}
this.$message.success('获取商品列表成功')
this.goodsList = res.data.goods
this.total = res.data.total
},
handleSizeChange(newSize){
//当页号发生改变时,更改pagesize,重新请求
this.queryInfo.pagesize = newSize
this.getGoodsList();
},
handleCurrentChange(newPage){
//当页码发生改变时,更改pagesize,重新请求
this.queryInfo.pagenum = newPage
this.getGoodsList();
}
}
}
</script>
<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
async removeById(id) {
const confirmResult = await this.$confirm(
'此操作将永久删除该商品, 是否继续?',
'提示',
{
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}
).catch(err => err)
if (confirmResult !== 'confirm') {
return this.$message.info('已经取消删除!')
}
const { data: res } = await this.$http.delete(`goods/${id}`)
if (res.meta.status !== 200) {
return this.$message.error('删除失败!')
}
this.$message.success('删除成功!')
this.getGoodsList()
},
在main.js中添加过滤器将毫秒数过滤为年月日,时分秒:
Vue.filter('dateFormat', function(originVal) {
const dt = new Date(originVal)
const y = dt.getFullYear()
const m = (dt.getMonth() + 1 + '').padStart(2, '0')
const d = (dt.getDate() + '').padStart(2, '0')
const hh = (dt.getHours() + '').padStart(2, '0')
const mm = (dt.getMinutes() + '').padStart(2, '0')
const ss = (dt.getSeconds() + '').padStart(2, '0')
return `${y}-${m}-${d} ${hh}:${mm}:${ss}`
})
过滤器的使用:
<el-table-column label="创建时间" prop="add_time" width="140px">
<template slot-scope="scope">
{{scope.row.add_time | dateFormat}}
</template>
</el-table-column>
在src-components-goods中新建Add.vue组件,当点击商品列表模块的添加商品按钮时跳转到该模块
所以要设置编程式导航完成跳转:
//在List.vue中添加编程式导航
<el-col :span="4">
<el-button type="primary" @click="goAddpage">添加商品</el-button>
</el-col>
goAddpage() {
this.$router.push('/goods/add')
}
最后在router.js中引入goods/Add.vue,并添加路由规则:
import GoodAdd from './components/goods/Add.vue'
path: '/home', component: Home, redirect: '/welcome', children: [
{ path: "/welcome", component: Welcome },
{ path: "/users", component: Users },
{ path: "/rights", component: Rights },
{ path: "/roles", component: Roles },
{ path: "/categories", component: Cate },
{ path: "/params", component: Params },
{ path: "/goods", component: GoodList },
{ path: "/goods/add", component: GoodAdd }
]
<div>
<!-- 面包屑导航 -->
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
<el-breadcrumb-item>商品管理</el-breadcrumb-item>
<el-breadcrumb-item>添加商品</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图区域 -->
<el-card>
<!-- 消息提示 -->
<el-alert title="添加商品信息" type="info" center show-icon :closable="false">
</el-alert>
<!-- 步骤条组件 -->
<!-- align-center(居中效果) -->
<el-steps :space="200" :active="activeIndex - 0" finish-status="success" align-center>
<el-step title="基本信息"></el-step>
<el-step title="商品参数"></el-step>
<el-step title="商品属性"></el-step>
<el-step title="商品图片"></el-step>
<el-step title="商品内容"></el-step>
<el-step title="完成"></el-step>
</el-steps>
<!-- tab栏区域:el-tab-pane必须是el-tabs的子节点
:tab-position="'left'"(设置tab栏为左右结构tab栏) -->
<!-- 表单:label-position="top"(设置label在文本框上方) -->
<el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" label-position="top">
<el-tabs v-model="activeIndex" :tab-position="'left'">
<el-tab-pane label="基本信息" name="0"></el-tab-pane>
<el-tab-pane label="商品参数" name="1"></el-tab-pane>
<el-tab-pane label="商品属性" name="2"></el-tab-pane>
<el-tab-pane label="商品图片" name="3"></el-tab-pane>
<el-tab-pane label="商品内容" name="4"></el-tab-pane>
</el-tabs>
</el-form>
</el-card>
</div>
注意:布局过程中需要使用Steps组件,在element.js中引入并注册该组件
<el-tab-pane label="基本信息" name="0">
<el-form-item label="商品名称" prop="goods_name">
<el-input v-model="addForm.goods_name"></el-input>
</el-form-item>
<el-form-item label="商品价格" prop="goods_price">
<el-input v-model="addForm.goods_price" type="number"></el-input>
</el-form-item>
<el-form-item label="商品重量" prop="goods_weight">
<el-input v-model="addForm.goods_weight" type="number"></el-input>
</el-form-item>
<el-form-item label="商品数量" prop="goods_number">
<el-input v-model="addForm.goods_number" type="number"></el-input>
</el-form-item>
<el-form-item label="商品分类" prop="goods_cat">
<!-- 选择商品分类的级联选择框 -->
<el-cascader expand-trigger="hover" :options="catelist" :props="cateProps" v-model="addForm.goods_cat" @change="handleChange"></el-cascader>
</el-form-item>
</el-tab-pane>
<script>
export default {
data() {
return {
//保存步骤条激活项索引
activeIndex: '0',
//添加商品的表单数据对象
addForm: {
goods_name: '',
goods_price: 0,
goods_weight: 0,
goods_number: 0,
goods_cat:[]
},
//验证规则
addFormRules: {
goods_name: [
{ required: true, message: '请输入商品名称', trigger: 'blur' }
],
goods_price: [
{ required: true, message: '请输入商品价格', trigger: 'blur' }
],
goods_weight: [
{ required: true, message: '请输入商品重量', trigger: 'blur' }
],
goods_number: [
{ required: true, message: '请输入商品数量', trigger: 'blur' }
],
goods_cat: [
{ required: true, message: '请选择商品分类', trigger: 'blur' }
]
},
//用来保存分类数据
cateList: [],
//配置级联菜单中数据如何展示
cateProps: {
value: 'cat_id',
label: 'cat_name',
children: 'children'
}
}
},
created() {
this.getCateList()
},
methods: {
async getCateList() {
const { data: res } = await this.$http.get('categories')
if (res.meta.status !== 200) {
return this.$message.error('获取商品分类数据失败')
}
this.cateList = res.data
},
handleChange(){
//如果用户选择的不是三级分类,该次选择无效,因为必须选择三级分类
if(this.addForm.goods_cat.length !== 3){
this.addForm.goods_cat = []
return
}
}
}
}
</script>
原理是当用户点击其他tab栏时,判断是否填写了基本信息,若没填写则无法跳转到其他tab栏并提示错误
首先给tabs添加tab切换前事件beforeTabLeave
<el-tabs v-model="activeIndex" :tab-position="'left'" :before-leave="beforeTabLeave" @tab-click="tabClicked">
//再到methods编写事件函数beforeTabLeave
beforeTabLeave(activeName,oldActiveName){
//在tab栏切换之前触发,两个形参为切换前,后的tab栏name
if(oldActiveName === '0'){
//在第一个标签页的时候
if(this.addForm.goods_cat.length !== 3){
this.$message.error('请选择商品的分类')
return false
}else if(this.addForm.goods_name.trim() === ''){
this.$message.error('请输入商品名称')
return false
}else if(this.addForm.goods_price.trim() === '0'){
this.$message.error('请输入商品价格')
return false
}else if(this.addForm.goods_weight.trim() === '0'){
this.$message.error('请输入商品重量')
return false
}else if(this.addForm.goods_number.trim() === '0'){
this.$message.error('请输入商品数量')
return false
}
}
}
商品参数子标签可以使用el-checkbox,el-checkbox-group复选框组件,打开element.js引入组件并注册组件:
<el-tab-pane label="商品参数" name="1">
<!-- 渲染表单的Item项 -->
<el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
<!-- 复选框组 -->
<el-checkbox-group v-model="item.attr_vals">
<el-checkbox :label="cb" v-for="(cb, i) in item.attr_vals" :key="i" border></el-checkbox>
</el-checkbox-group>
</el-form-item>
</el-tab-pane>
<el-tab-pane label="商品属性" name="2">
<el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
<el-input v-model="item.attr_vals"></el-input>
</el-form-item>
</el-tab-pane>
在data数据中添加保存动态参数和静态属性的数组:
export default {
data() {
return {
//动态参数列表
manyTableData: [],
//静态属性列表
onlyTableData:[]
}
},methods: {
async tabClicked() {
//当用户点击切换tab栏时触发
if (this.activeIndex === '1') {
//发送请求获取动态参数
const { data: res } = await this.$http.get( `categories/${this.cateId}/attributes`, { params: { sel: 'many' } })
if (res.meta.status !== 200) {
return this.$message.error('获取动态参数列表失败')
}
//将attr_vals字符串转换为数组
res.data.forEach(item => {
item.attr_vals =
item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
})
this.manyTableData = res.data
} else if (this.activeIndex === '2') {
//发送请求获取静态属性
const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, { params: { sel: 'only' } })
if (res.meta.status !== 200) {
return this.$message.error('获取静态属性列表失败')
}
this.onlyTableData = res.data
}
}
},
//添加 计算属性获取三级分类
computed: {
cateId() {
if (this.addForm.goods_cat.length === 3) {
return this.addForm.goods_cat[2]
}
return null
}
}
}
使用upload组件完成图片上传,在element.js中导入upload组件
需要注意的是,upload组件进行图片上传的时候并不是使用axios发送请求
所以,我们需要手动为上传图片的请求添加token,即为upload组件添加headers属性
<el-tab-pane label="商品图片" name="3">
<!-- 商品图片上传
action:指定图片上传api接口
:on-preview : 当点击图片时会触发该事件进行预览操作,处理图片预览
:on-remove : 当用户点击图片右上角的X号时触发执行
:on-success:当用户点击上传图片并成功上传时触发
list-type :设置预览图片的方式
:headers :设置上传图片的请求头 -->
<el-upload :action="uploadURL" :on-preview="handlePreview" :on-remove="handleRemove" list-type="picture" :headers="headerObj" :on-success="handleSuccess">
<el-button size="small" type="primary">点击上传</el-button>
</el-upload>
</el-tab-pane>
<!-- 图片预览对话框 -->
<el-dialog title="图片预览" :visible.sync="previewVisible" width="50%">
<img :src="previewPath" alt="" class="previewImg">
</el-dialog>
//在data中添加数据
data(){
return {
......
//添加商品的表单数据对象
addForm: {
goods_name: '',
goods_price: 0,
goods_weight: 0,
goods_number: 0,
goods_cat: [],
//上传图片数组
pics: []
},
//上传图片的url地址
uploadURL: 'http://127.0.0.1:8888/api/private/v1/upload',
//图片上传组件的headers请求头对象
headerObj: { Authorization: window.sessionStorage.getItem('token') },
//保存预览图片的url地址
previewPath: '',
//控制预览图片对话框的显示和隐藏
previewVisible:false
}
},
//在methods中添加事件处理函数
methods:{
.......
handlePreview(file) {
//当用户点击图片进行预览时执行,处理图片预览
//形参file就是用户预览的那个文件
this.previewPath = file.response.data.url
//显示预览图片对话框
this.previewVisible = true
},
handleRemove(file) {
//当用户点击X号删除时执行
//形参file就是用户点击删除的文件
//获取用户点击删除的那个图片的临时路径
const filePath = file.response.data.tmp_path
//使用findIndex来查找符合条件的索引
const index = this.addForm.pics.findIndex(item => item.pic === filePath)
//移除索引对应的图片
this.addForm.pics.splice(index, 1)
},
handleSuccess(response) {
//当上传成功时触发执行
//形参response就是上传成功之后服务器返回的结果
//将服务器返回的临时路径保存到addForm表单的pics数组中
this.addForm.pics.push({ pic: response.data.tmp_path })
}
}
今天完成了商品列表模块的编写,核心是图片上传及展示相关知识,以及商品列表数据的增删改查,逻辑性不强,代码量比较多,需要足够的耐心去实现。