使用vNode實(shí)現(xiàn)給列表字段打標(biāo)簽

更新時(shí)間：2022年09月23日 15:21:19 作者：甜點(diǎn)cc

這篇文章主要為大家介紹了使用vNode實(shí)現(xiàn)給列表字段打標(biāo)簽示例詳解，有需要的朋友可以借鑒參考下，希望能夠有所幫助，祝大家多多進(jìn)步，早日升職加薪

問題

如何給列表數(shù)據(jù)打標(biāo)簽？類似下面這種樣子??

思路實(shí)現(xiàn)

數(shù)模轉(zhuǎn)換（對(duì)接口請(qǐng)求回來的數(shù)據(jù)進(jìn)行過濾標(biāo)記，返回新的數(shù)據(jù)）
渲染新的數(shù)據(jù)模型

1、過濾數(shù)據(jù)，需要打標(biāo)簽的采用jsx寫法

業(yè)務(wù)數(shù)據(jù)的處理我封裝在 mixins 里面

// 存放全局的mixin， 可拆分到模塊獨(dú)享
import { mapGetters } from 'vuex'
import { fetchListData } from '@/api/global/api.js'
export default {
  data() {
    return {
      p_category: [],
      listdata: [],
      p_total: 0,
      p_loading: false,
    }
  },
  computed: {
    // ...mapGetters(['productLevel', 'productLevelInfo']),
    p_listdata() {
      const data = this.listdata;
      data.forEach((item) => {
        // ...
        // jsx 方式，打標(biāo)簽
        if (item.status === 2 || item.status === 3) {
          item.status = <span style={{color: '#999'}}>停售</span>
        } else {
          item.status = item.status
        }
        if (item.age <= 25) {
          item.age = <span class="badge_info">{item.age}</span>
        }
        if (item.sex === 'Man') {
          item.sex = <span class="badge_default">{item.sex}</span>
        }
      })
      return data;
    }
  },
  methods: {
    async getProductList(params = {}) {
      try {
        this.p_loading = true
        this.listdata = []
        const res = await fetchListData(params)
        if (res.code === 0) {
          const { data = [], total = 0 } = res || {}
          if (Array.isArray(data)) {
            this.listdata = [...data]
            this.p_total = total
          } else {
            this.listdata = []
            this.p_total = 0
          }
        } else {
          this.listdata = []
          this.p_total = 0
          this.$message.error(res.message || '出錯(cuò)了')
        }
        this.p_loading = false;
      } catch (err) {
        this.p_loading = false
        this.listdata = []
        this.p_total = 0
        console.log(err);
      }
    }
  }
}

base.less 定義標(biāo)簽樣式

.badge_info {
  color: #4760f0;
  background: #1C84C6;
  padding: 5px 8px;
  color: #fff;
  border-radius: 5px;
}
.badge_default {
  color: #4760f0;
  background: #4760f0;
  padding: 5px 8px;
  color: #fff;
  border-radius: 5px;
}

2、封裝列表渲染組件

<template>
  <ul class="listV2">
    <li class="listV2_row-title">
      <span v-for="(col, index) in fieldList" :key="index" class="listV2_cell ellipsis" :name="col.fieldName">
        {{col.fieldLabel}}
      </span>
    </li>
    <!-- 行 -->
    <div v-if="tableData.length === 0" class="nodata">暫無數(shù)據(jù)</div>
    <li v-for="(row, index) in tableData" :key="index" class="listV2_row pointer" @click="rowClickToDetail(row)">
      <!-- 單元格-列 -->
      <span v-for="(col, index) in fieldList" :key="index" class="listV2_cell ellipsis" :name="col.fieldName">
        <RenderDom :vNode="row[col.fieldName] || '-'"></RenderDom>
      </span>
    </li>
  </ul>
</template>
<script>
  import RenderDom from "./renderDom";
  export default {
    name: 'TableList',
    props: {
      tableData: {
        type: Array,
        required: true,
      },
      fieldList: {
        type: Array,
        required: true,
      },
      align: {
        type: String,
        default: 'left',
      },
    },
    components: {
      RenderDom,
    },
    data() {
      return {}
    },
    computed: {},
    watch: {},
    created() { },
    mounted() { },
    methods: {},
    updated() { },
    beforeDestroy() { },
  }
</script>
<style lang='less' rel='stylesheet/less' scoped>
  @import "./index.less";
</style>

3、封裝渲染vNode的方法

const renderDom = {
  props: {
    vNode: {
      type: [Array, String, Object,Number],
    },
  },
  render(h) {
    // jsx - vNode 直接返回，交給框架處理（js語法帶來很多可能，列表打標(biāo)簽功能）
    if (typeof this.vNode === 'object') {
      return this.vNode;
    }
    // 普通數(shù)據(jù)，直接包一層div，然后返回給頁面
    return h(
      'div',
      {
        class: 'ellipsis',
      },
      this.vNode
    )
  }
}

4、頁面組件調(diào)用

<template>
  <div class="customer">
    <table-list v-loading="p_loading" :tableData="p_listdata" :fieldList="fieldList"></table-list>
  </div>
</template>
<script>
  import TableList from '@/basecomponents/TableList/index'
  import $_pMixins from "@/mixins/product.js";
  import enums from './enum.js'
  export default {
    name: 'Customer',
    props: {},
    components: {
      'table-list': TableList,
    },
    mixins: [$_pMixins],
    data() {
      return {
        tableData: [],
        fieldList: Object.freeze(enums.Enum_customerFieldList),
      }
    },
    computed: {},
    watch: {},
    created() {
    },
    mounted() {
      this.initData()
    },
    methods: {
      initData() {
        this.getProductList()
      }
    },
    updated() { },
    beforeDestroy() { },
  }
</script>
<style lang='less' rel='stylesheet/less' scoped>
  @import "./index.less";
</style>