element UI-遠程搜索（el-select）

1.需求

表單項需具有搜索功能，並以下拉選的形式展現

2.實現

<template>
  <div class="medicalRecord">
    <div class="main-content" v-if="!taskDetail">
      <div class="content-top">
        <el-form style="width: 100%" :inline="true" :model="formResult" ref="formResult" hide-required-asterisk class="form-box" :rules="formRules">
          <ul class="flex-space-between" style="width: 100%">
            <li style="width: 322px; margin-left: 3px !important;">
              <el-form-item label="管理機構：" label-width="82px">
                <el-select
                  v-model="formResult.branchCom"
                  filterable
                  remote
                  clearable
                  reserve-keyword
                  placeholder="請輸入關鍵詞"
                  :remote-method="remoteMethod"
                  :loading="remoteLoading"
                  :disabled="isRemote"
                  @focus="repeatList"
                  @change="handleSelectBranchCom"
                >
                  <el-option
                    v-for="item in remoteOptions"
                    :key="item.value"
                    :label="item.label"
                    :value="item.value">
                  </el-option>
                </el-select>
              </el-form-item>
            </li>
          </ul>
        </el-form>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: 'taskManage',
  data () {
    return {
      formResult: {
        branchCom: '', // 管理機構
        branchComCode: '' // 管理機構編碼
      },
      formRules: {
        // grpContNo: [{required: true, message: '請輸入團體保單號', trigger: 'blur'}] // 團體保單號必填
      },
      remoteOptions: [], // 遠程搜索列表
      remoteList: [], // 返回的遠程搜索列表
      remoteLoading: false, // 是否正在從遠程獲取數據
      isRemote: false // 是否爲遠程搜索
    }
  },
  created () {
    // 獲取當前登錄人的中支
    // this.formResult.branchComCode = this.$cookies.get('branchCom')
    // console.log(this.formResult.branchComCode)
    this.getBranchCom() // 獲取管理機構列表
  },
  methods: {
    // 獲取管理機構列表
    getBranchCom () {
      console.log('獲取管理機構，入參；；；this.branchComCode', this.formResult.branchComCode)
      // let bcode = this.formResult.branchComCode
      this.$axios({
        url: 'survey-app-service/rest/survey/branchcom/query',
        method: 'post',
        data: {
          'tradeMap': {
            'manageCom': '',
            'branchCom': '%'
          }
        }
      }).then(res => {
        console.log(res)
        let data = res.data
        if (data.tradeMap.resultCode === '00') {
          this.remoteList = data.tradeMap.comCode.map(item => {
            // return { value: item, label: item }
            return {
              value: item,
              label: item.split(',')[1]
            }
          })
          console.log('this.remoteList')
          console.log(this.remoteList)
        }
      }).catch(() => {
        this.$message.error('系統異常')
      })
    },
    // 清空選擇項
    repeatList () {
      this.remoteOptions = this.remoteList.filter(item => {
        return item.label
      })
    },
    // 選中管理機構時觸發
    handleSelectBranchCom (item) {
      console.log('遠程搜索選中後返回的item：：：：：即value的值')
      console.log(item)
      this.formResult.branchComCode = item.split(',')[0]
    },
    // 管理機構觸發的遠程搜索方法
    remoteMethod (query) {
      console.log(this.remoteList)
      if (query !== '') {
        this.remoteLoading = true
        setTimeout(() => {
          this.remoteLoading = false
          this.remoteOptions = this.remoteList.filter(item => {
            return item.value
              .indexOf(query) > -1
          })
          console.log('this.remoteOptions')
          console.log(this.remoteOptions)
        }, 200)
      } else {
        this.remoteOptions = []
      }
    }
  }
}
</script>

3.後端返回結果示例  

{errorList:[]
serviceNode:""
shardFlag:false
storageMap:{}
tradeMap:{
    message:"查詢成功"
    resultCode:"00"
    comCode:["01,北京分公司", "02,湖北分公司", "0201,湖北分公司宜昌中心"]
}}

4.效果展示