(六)商品管理模块- 商品列表功能

初始化List.vue并添加路由

和之前的步骤类似,搭建基本的结构

<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <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">
            <el-button slot="append" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary">添加商品</el-button>
        </el-col>
      </el-row>
    </el-card>
  </div>
</template>

获取数据

然后就是编写获取数据相关的业务逻辑

data() {
  return {
    // 查询参数对象
    queryInfo: {
      query: '',
      pagenum: 1,
      pagesize: 10
    },
    // 商品列表
    goodsList: [],
    // 总数据条数
    total: 0
  }
},
created() {
  this.getGoodsList()
},
methods: {
  // 根据分页获取对应的商品列表
  async getGoodsList() {
    const { data: result } = await this.$http.get('goods', { params: this.queryInfo })
    if (result.meta.status !== 200) {
      return this.$message.error('获取商品列表失败!')
    }
    this.$message.success('获取商品列表成功!')
    console.log(result.data)
    this.goodsList = result.data.goods
    this.total = result.data.total
  }
}

显示数据

将数据展现出来

<!-- 商品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="90px"></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"></el-table-column>
  <el-table-column label="操作" width="130px">
    <template>
      <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
      <el-button type="danger" icon="el-icon-delete" size="mini"></el-button>
    </template>
  </el-table-column>
</el-table>

使用全局过滤器Vue.filter自定义格式化时间

main.js注册全局过滤器

Vue.filter('dateFormat', function (originVal) {
  const dt = new Date(originVal)
  const y = dt.getFullYear()
  const m = (dt.getMonth() + 1 + '').padStart(2, '0') // 如果不是两位前面用0填充
  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}`
})
复制代码
<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>

商品列表分页管理功能

和之前的做法类似

搜索与清空功能

<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>

商品添加页面

通过编程式导航跳转到商品添加页面

<el-button type="primary" @click="goAddPage">添加商品</el-button>
复制代码
goAddPage(){
  this.$router.push('/goods/add')
}
复制代码

创建文件goods/Add.vue 添加路由规则

渲染添加页面基本结构

<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <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>
      <!-- 提示区域 -->
      <el-alert
        title="添加商品信息"
        type="info"
        center
        show-icon
        :closable="false"
      ></el-alert>
      <!-- 步骤条 -->
      <el-steps :space="200" :active="1" finish-status="success">
        <el-step title="已完成"></el-step>
        <el-step title="进行中"></el-step>
        <el-step title="步骤 3"></el-step>
      </el-steps>
    </el-card>
  </div>
</template>

美化步骤条组件

<!-- 步骤条 -->
<el-steps
  :space="200"
  :active="activeIndex"
  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>
复制代码
data() {
  return {
    activeIndex: 0
  }
}

表单组成部分

<el-form
  :model="addForm"
  :rules="addFormRules"
  ref="addFormRef"
  label-width="100px"
  label-position="top"
>

基本信息面板UI结构

<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">
    <el-cascader
      v-model="addForm.goods_cat"
      :options="cateList"
      :props="cateProps"
      @change="handleChange"
    ></el-cascader>
  </el-form-item>
</el-tab-pane>
复制代码
addForm: {
  goods_name: '',
  goods_price: 0,
  goods_weight: 0,
  goods_number: 0,
  // 商品所属的分类数组
  goods_cat: []
},
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' }
  ]
},
// 商品分类列表
cateList: [],
cateProps: {
  expandTrigger: 'hover',
  label: 'cat_name', // 看到的属性
  value: 'cat_id', // 选中的是什么值
  children: 'children' // 指定属性实现父子节点嵌套
}
复制代码
// 获取所有商品分类数据
async getCateList() {
  const { data: result } = await this.$http.get('categories')
  if (result.meta.status !== 200) {
    return this.$message.error('获取商品分类数据失败!')
  }
  this.cateList = result.data
  console.log(this.cateList)
},
// 级联选择器选中会触发
handleChange() {
  console.log(this.addForm.goods_cat)
        if (this.addForm.goods_cat.length !== 3) {
    this.addForm.goods_cat = []
  }
}

阻止页签切换

<el-tabs :tab-position="'left'" v-model="activeIndex" :before-leave="beforeTabLeave">
复制代码
beforeTabLeave(activeName, oldActiveName) {
  if (oldActiveName === '0' && this.addForm.goods_cat.length !== 3) {
    this.$message.error('请先选择商品分类!')
    return false
  }
}

获取动态参数列表数据

<el-tabs :tab-position="'left'" v-model="activeIndex" :before-leave="beforeTabLeave" @tab-click="tabClicked">
复制代码
// 动态参数列表
manyTableData: []
复制代码
async tabClicked() {
  if (this.activeIndex === '1') {
    const { data: result } = await this.$http.get(`categories/${this.cateId}/attributes`, { 
      params: { sel: 'many' } 
    })
    if (result.meta.status !== 200) {
      return this.$message.error('获取状态参数列表失败!')
    }
    console.log(result.data)
    this.manyTableData = result.data
  }
}
复制代码
computed: {
  cateId() {
    if (this.addForm.goods_cat.length === 3) {
      return this.addForm.goods_cat[2]
    }
    return null
  }
}

绘制商品参数面板复选框

<!-- 渲染表单item项 -->
<el-form-item
  :label="item.attr_name"
  v-for="item in manyTableData"
  :key="item.attr_id"
>
<el-checkbox-group v-model="item.attr_vals">
  <el-checkbox v-for="(cb, index) in item.attr_vals" :key="index" :label="cb" border></el-checkbox>
</el-checkbox-group>
</el-form-item>
复制代码
async tabClicked() {
  if (this.activeIndex === '1') {
    const { data: result } = await this.$http.get(
      `categories/${this.cateId}/attributes`,
      {
        params: { sel: 'many' }
      }
    )
    if (result.meta.status !== 200) {
      return this.$message.error('获取状态参数列表失败!')
    }
    console.log(result.data)
    result.data.forEach(item => {
      item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
    })
    this.manyTableData = result.data
  }
}
复制代码
.el-checkbox {
  margin: 0 10px 0 0 !important;
}

图片上传功能

初步使用upload上传组件

<!-- 图片上传模块 action表示上传的API地址 -->
<el-upload
  :action="uploadURL"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  list-type="picture"
>
  <el-button size="small" type="primary">点击上传</el-button>
</el-upload>
复制代码
// 上传图片的URL地址
uploadURL: 'http://127.0.0.1:8888/api/private/v1/'
复制代码
// 处理图片预览效果
handlePreview() {},
// 处理移除图片的操作
handleRemove() {}

手动为upload组件绑定header请求头

el-upload组件没有使用我们定义的axios发送ajax请求

<el-upload
  :action="uploadURL"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  list-type="picture"
  :headers="headerObj"
>
复制代码
// 图片上传组件的header请求头对象
headerObj: {
  Authorization: window.sessionStorage.getItem('token')
}

监听upload组件的on-success

<el-upload
:action="uploadURL"
:on-preview="handlePreview"
:on-remove="handleRemove"
list-type="picture"
:headers="headerObj"
:on-success="handleSuccess"
>
复制代码
addForm: {
  goods_name: '',
  goods_price: 0,
  goods_weight: 0,
  goods_number: 0,
  // 商品所属的分类数组
  goods_cat: [],
  // 图片的数组
  pics: []
}
复制代码
handleSuccess(responce) {
    // console.log(responce)
    // 1. 拼接得到一个图片信息对象
    const picInfo = { pic: responce.data.temp_path }
    // 2. 将图片信息对象,push到pics数组中
    this.addForm.pics.push(picInfo)
  }

监听upload组件的on-remove

// 处理移除图片的操作
handleRemove(file) {
  console.log(file)
  // 1. 获取将要删除的图片的临时路径
  const filePath = file.response.data.tmp_path
  // 2. 从pics数组中,找到这个图片对应的索引值
  const i = this.addForm.pics.findIndex(x => x.pic === filePath)
  // 3. 调用数组的splice方法,把图片信息对象,从pics数组中移除
  this.addForm.pics.splice(i, 1)
  console.log(this.addForm)
}

商品内容

安装配置vue-quill-editor富文本编辑器

安装运行依赖vue-quill-editor 3.0.6

github.com/surmon-chin…

// 商品的详情描述
goods_introduce: ''
复制代码
<!-- 富文本编辑组件 -->
<quill-editor v-model="addForm.goods_introduce"></quill-editor>
<!-- 添加商品按钮 -->
<el-button class="btnAdd" type="primary" @click="add">添加商品</el-button>
复制代码
.ql-editor {
  min-height: 300px;
}
.btnAdd {
  margin-top: 15px;

表单预验证

add() {
  this.$refs.addFormRef.validate(valid => {
    if (!valid) {
      return this.$message.error('填写必要的表单项!')
    }
    // 执行添加的业务逻辑
  })

goods_cat从数组传换成字符串

安装运行依赖lodash 实现深拷贝

import _ from 'lodash'

    add() {
      this.$refs.addFormRef.validate(valid => {
        if (!valid) {
          return this.$message.error('填写必要的表单项!')
        }
        // 执行添加的业务逻辑
        const form = _.cloneDeep(this.addForm)
        form.goods_cat = form.goods_cat.join(',')
      })
    }

处理attrs数组

add() {
  this.$refs.addFormRef.validate(valid => {
    if (!valid) {
      return this.$message.error('填写必要的表单项!')
    }
    // 执行添加的业务逻辑
    const form = _.cloneDeep(this.addForm)
    form.goods_cat = form.goods_cat.join(',')
    // 处理动态参数
    this.manyTableData.forEach(item => {
      const newInfo = { 
        attr_id: item.attr_id,
        attr_value: item.attr_vals.join(' ')
      }
      this.addForm.attrs.push(newInfo)
    })
    // 处理静态属性
    this.onlyTableData.forEach(item => {
      const newInfo = {
        attr_id: item.attr_id,
        attr_value: item.attr_vals
      }
      this.addForm.attrs.push(newInfo)
    })
    form.attrs = this.addForm.attrs
  })
}

完成商品添加操作

add() {
  this.$refs.addFormRef.validate(async valid => {
    if (!valid) {
      return this.$message.error('填写必要的表单项!')
    }
    // 执行添加的业务逻辑
    const form = _.cloneDeep(this.addForm)
    form.goods_cat = form.goods_cat.join(',')
    // 处理动态参数
    this.manyTableData.forEach(item => {
      const newInfo = { 
        attr_id: item.attr_id,
        attr_value: item.attr_vals.join(' ')
      }
      this.addForm.attrs.push(newInfo)
    })
    // 处理静态属性
    this.onlyTableData.forEach(item => {
      const newInfo = {
        attr_id: item.attr_id,
        attr_value: item.attr_vals
      }
      this.addForm.attrs.push(newInfo)
    })
    form.attrs = this.addForm.attrs
    // 发起请求添加商品
    // 商品的名称必须是唯一的
    const { data: result } = await this.$http.post('goods', form)
    if (result.meta.status !== 201) {
      return this.$message.error('添加商品失败')
    }
    this.$message.success('添加商品成功')
    this.$router.push('/goods')
  })
}

List.vue完整代码

<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <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>
      <!-- 商品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="90px"
        ></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>
      <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>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList: [],
      // 总数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: result } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (result.meta.status !== 200) {
        return this.$message.error('获取商品列表失败!')
      }
      this.$message.success('获取商品列表成功!')
      console.log(result.data)
      this.goodsList = result.data.goods
      this.total = result.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async removeById(id) {
      const confirmResult = await this.$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(error => error)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除!')
      }
      const { data: result } = await this.$http.delete(`goods/${id}`)
      if (result.meta.status !== 200) {
        return this.$message.error('删除失败!')
      }
      this.$message.success('删除成功!')
      this.getGoodsList()
    },
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style scoped></style>
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