vue elementui 实现搜索栏子组件封装的示例代码

<template>
  <div class="search-main">
    <!-- 下拉框 -->
    <el-select
      class="com com-margin"
      v-model="objSearch.searchType"
      filterable
      placeholder="请选择"
    >
      <el-option
        v-for="item in objSearch.searchKeyOptions"
        :key="item.value"
        :label="item.label"
        :value="item.value"
      >
      </el-option>
    </el-select>
    <!-- 搜索值 -->
    <el-input
      class="com"
      v-model="objSearch.searchValue"
      placeholder="请输入搜索值"
    ></el-input>
    <!-- 下拉框 -->
    <el-cascader
      class="com"
      :options="objSearch.options"
      :props="{ checkStrictly: true }"
      clearable
      :placeholder="objSearch.placeholder"
      v-model="objSearch.status"
    ></el-cascader>

    <el-button @click="search" type="primary" icon="el-icon-search"
      >搜索</el-button
    >
    <el-button @click="refresh" type="primary" icon="el-icon-refresh"
      >刷新</el-button
    >
    <el-button type="primary" icon="el-icon-document" @click="exportExcel"
      >导出EXCEL</el-button
    >
    <el-button class="total" type="primary" icon="el-icon-files"
      >{{ objSearch.name }}总数:{{ objSearch.total
      }}{{ objSearch.unit }}</el-button
    >
  </div>
</template>

<script>
export default {
  name: 'Search',
  // 接收父组件对象
  props: {
    objSearch: { type: Object, default: null }
  },
  methods: {
    // 搜索
    search () {
      let obj = {
        searchType: this.objSearch.searchType,
        searchValue: this.objSearch.searchValue,
        status: this.objSearch.status
      }
      this.$emit('search', obj)
    },
    // 刷新
    refresh () {
      this.$emit('refresh')
    },
    // 导出
    exportExcel () {
      this.$emit('exportExcel')
    }
  }
}
</script>

<style scoped>
.search-main {
  width: 100%;
  line-height: 4rem;
}
.com {
  width: 10rem;
}
.com-margin {
  margin-left: 1rem;
}
.total {
  float: right;
  margin-top: 1rem;
}
</style>

<div class="device-sensor-main">
    <!--使用Search子组件 refresh 方法是刷新，exportExcel 方法是导出，search 方法是搜索 -->
    <div class="search">
      <Search
        :objSearch="objSearch"
        @refresh="refresh"
        @exportExcel="exportExcel"
        @search="search"
      ></Search>
    </div>
</div>

<script>
// 引用搜索模块子组件
import Search from '@/components/search'
export default {
  name: 'SensorList',
  // 注册
  components: {
    Search
  },
  data () {
    return {
      // 搜索模块
      objSearch: {
        searchKeyOptions: [
          { label: '传感器编号', value: 'sensorImei' },
          { label: '设备IMEI号', value: 'imei' },
          { label: '医院名称', value: 'hospitalName' }
        ],
        searchType: 'sensorImei',
        searchValue: '',
        name: '设备',
        unit: '台',
        total: 0,
        placeholder: '传感器状态',
        options: [],
        status: []
      }
    }
  },
  methods: {
    // 搜索 obj就是子组件传过来的对象
    search (obj) {
      console.log('子组件搜索返回数据：', obj)
    },
    // 刷新
    refresh () {
      console.log('刷新')
    },
    // 导出
    exportExcel () {
      console.log('导出')
    }
  }
}
</script>

<style scoped>
.search {
  width: 100%;
  height: 4rem;
}
.footer {
  text-align: center;
}
.el-table .el-table__cell {
  padding: 0.3rem 0;
}
</style>