cnpm i --save sortablejs

<template>
  <div class="home">
    <div class="body">
      <el-table :data="tableData" border row-key="date" class="draggable-table" style="width: 100%">
        <el-table-column prop="sortNo" label="序號(hào)">
          <template slot-scope="{ row }">
            <img
              class="handle"
              :src="require('./icon-drop.png')"
              style="width: 20px; height: 20px; object-fit: contain"
            />
          </template>
        </el-table-column>
        <el-table-column prop="date" label="日期"></el-table-column>
        <el-table-column prop="name" label="姓名"></el-table-column>
        <el-table-column prop="address" label="地址"></el-table-column>
      </el-table>
    </div>
  </div>
</template>
<script>
  import Sortable from 'sortablejs'
  export default {
    name: 'Demo',
    data() {
      return {
        tableData: [
          // 略去數(shù)據(jù)，與前段代碼一直
          { date: '2024-01-02', name: '張三1', address: '深圳市' },
          { date: '2024-01-03', name: '李四2', address: '成都市' },
          { date: '2024-01-04', name: '王五3', address: '重慶市' },
          { date: '2024-01-05', name: '麻六4', address: '上海市' },
          { date: '2024-01-07', name: 'kk5', address: '上海市01' },
          { date: '2024-01-08', name: 'fantay6', address: '上海市02' },
        ],
      }
    },
    mounted() {
      const tbody = document.querySelector('.draggable-table .el-table__body-wrapper tbody')
      new Sortable(tbody, {
        handle: '.handle', // handle's class
        animation: 150,
        // 需要在odEnd方法中處理原始eltable數(shù)據(jù)，使原始數(shù)據(jù)與顯示數(shù)據(jù)保持順序一致
        onEnd: ({ newIndex, oldIndex }) => {
          const targetRow = this.tableData[oldIndex]
          this.tableData.splice(oldIndex, 1)
          this.tableData.splice(newIndex, 0, targetRow)
          console.table(this.tableData)
        },
      })
    },
  }
</script>
<style scoped lang="scss">
  .home {
    .body {
      width: 890px;
      height: 500px;
      border: #ff3366 solid 10px;
      box-sizing: border-box;
      padding: 20px;
      box-sizing: border-box;
    }
  }
  .handle {
    cursor: move;
    display: flex;
    align-content: center;
  }
</style>

npm install sortablejs --save
# yarn add sortablejs --save
# bower install --save sortablejs

import Sortable from 'sortablejs'

<template>
	<!-- 注意這里的 row-key 需要設(shè)置，否則拖動(dòng)排序可能顯示不正常 -->
    <el-table :data="tableList" row-key="id">
        <el-table-column prop="..." label="..."></el-table-column>
        ...
    </el-table>
</template>

mounted() {
  // 初始化
  this.initSort()
},
methods: {
  initSort() {
    const el = document.querySelectorAll('.el-table__body-wrapper > table > tbody')[0]
    const sortable = new Sortable(el, {
      onEnd: evt => {
        const curRow = this.tableList.splice(evt.oldIndex, 1)[0]
        this.tableList.splice(evt.newIndex, 0, curRow)
        // this.updateSort() 更新數(shù)據(jù)庫，將排序后的數(shù)據(jù)傳給后端
      }
    })
  }
}

// 配置項(xiàng)
var sortable = new Sortable(el, {
  group: "name", // or { name: "...", pull: [true, false, 'clone', array], put: [true, false, array] }
  sort: true, // boolean 定義是否列表單元是否可以在列表容器內(nèi)進(jìn)行拖拽排序
  delay: 0, // number 定義鼠標(biāo)選中列表單元可以開始拖動(dòng)的延遲時(shí)間；
  touchStartThreshold: 0, // px, how many pixels the point should move before cancelling a delayed drag event
  disabled: false, // boolean 定義是否此sortable對(duì)象是否可用，為true時(shí)sortable對(duì)象不能拖放排序等功能，為false時(shí)為可以進(jìn)行排序，相當(dāng)于一個(gè)開關(guān)；
  store: null, // @see Store
  animation: 150, // ms, number 單位：ms，定義排序動(dòng)畫的時(shí)間
  easing: "cubic-bezier(1, 0, 0, 1)", // Easing for animation. Defaults to null. See https://easings.net/ for examples.
  handle: ".my-handle", // 格式為簡單css選擇器的字符串，使列表單元中符合選擇器的元素成為拖動(dòng)的手柄，只有按住拖動(dòng)手柄才能使列表單元進(jìn)行拖動(dòng)
  filter: ".ignore-elements", // 過濾器，不需要進(jìn)行拖動(dòng)的元素
  preventOnFilter: true, //  在觸發(fā)過濾器`filter`的時(shí)候調(diào)用`event.preventDefault()`
  draggable: ".item", // 允許拖拽的項(xiàng)目類名
  ghostClass: "sortable-ghost", // drop placeholder的css類名
  chosenClass: "sortable-chosen", // 被選中項(xiàng)的css 類名
  dragClass: "sortable-drag", // 正在被拖拽中的css類名
  dataIdAttr: 'data-id',
  swapThreshold: 1, // Threshold of the swap zone
  invertSwap: false, // Will always use inverted swap zone if set to true
  invertedSwapThreshold: 1, // Threshold of the inverted swap zone (will be set to swapThreshold value by default)
  direction: 'horizontal', // 拖拽方向 (默認(rèn)情況下會(huì)自動(dòng)判斷方向)
  forceFallback: false, // 忽略 HTML5拖拽行為，強(qiáng)制回調(diào)進(jìn)行
  fallbackClass: "sortable-fallback", // 當(dāng)使用forceFallback的時(shí)候，被復(fù)制的dom的css類名
  fallbackOnBody: false, // 將cloned DOM 元素掛到body元素上。
  fallbackTolerance: 0, // Specify in pixels how far the mouse should move before it's considered as a drag.
  scroll: true, // or HTMLElement
  scrollFn: function (offsetX, offsetY, originalEvent, touchEvt, hoverTargetEl) {
    ...
  }, // if you have custom scrollbar scrollFn may be used for autoscrolling
  scrollSensitivity: 30, // px, how near the mouse must be to an edge to start scrolling.
  scrollSpeed: 10, // px
  bubbleScroll: true, // apply autoscroll to all parent elements, allowing for easier movement
  dragoverBubble: false,
  removeCloneOnHide: true, // Remove the clone element when it is not showing, rather than just hiding it
  emptyInsertThreshold: 5, // px, distance mouse must be from empty sortable to insert drag element into it
  setData: function ( /** DataTransfer */ dataTransfer, /** HTMLElement*/ dragEl) {
    dataTransfer.setData('Text', dragEl.textContent); // `dataTransfer` object of HTML5 DragEvent
  },
  // 元素被選中
  onChoose: function ( /**Event*/ evt) {
    evt.oldIndex; // element index within parent
  },
  // 元素未被選中的時(shí)候（從選中到未選中）
  onUnchoose: function ( /**Event*/ evt) {
    // same properties as onEnd
  },
  // 開始拖拽的時(shí)候
  onStart: function ( /**Event*/ evt) {
    evt.oldIndex; // element index within parent
  },
  // 結(jié)束拖拽
  onEnd: function ( /**Event*/ evt) {
    var itemEl = evt.item; // dragged HTMLElement
    evt.to; // target list
    evt.from; // previous list
    evt.oldIndex; // element's old index within old parent
    evt.newIndex; // element's new index within new parent
    evt.clone // the clone element
    evt.pullMode; // when item is in another sortable: `"clone"` if cloning, `true` if moving
  },
  // 元素從一個(gè)列表拖拽到另一個(gè)列表
  onAdd: function ( /**Event*/ evt) {
    // same properties as onEnd
  },
  // 列表內(nèi)元素順序更新的時(shí)候觸發(fā)
  onUpdate: function ( /**Event*/ evt) {
    // same properties as onEnd
  },
  // 列表的任何更改都會(huì)觸發(fā)
  onSort: function ( /**Event*/ evt) {
    // same properties as onEnd
  },
  // 元素從列表中移除進(jìn)入另一個(gè)列表
  onRemove: function ( /**Event*/ evt) {
    // same properties as onEnd
  },
  // 試圖拖拽一個(gè)filtered的元素
  onFilter: function ( /**Event*/ evt) {
    var itemEl = evt.item; // HTMLElement receiving the `mousedown|tapstart` event.
  },
  // 拖拽移動(dòng)的時(shí)候
  onMove: function ( /**Event*/ evt, /**Event*/ originalEvent) {
    // Example: https://jsbin.com/nawahef/edit?js,output
    evt.dragged; // dragged HTMLElement
    evt.draggedRect; // DOMRect {left, top, right, bottom}
    evt.related; // HTMLElement on which have guided
    evt.relatedRect; // DOMRect
    evt.willInsertAfter; // Boolean that is true if Sortable will insert drag element after target by default
    originalEvent.clientY; // mouse position
    // return false; — for cancel
    // return -1; — insert before target
    // return 1; — insert after target
  },
  // clone一個(gè)元素的時(shí)候觸發(fā)
  onClone: function ( /**Event*/ evt) {
    var origEl = evt.item;
    var cloneEl = evt.clone;
  },
  // 拖拽元素改變位置的時(shí)候
  onChange: function ( /**Event*/ evt) {
    evt.newIndex // most likely why this event is used is to get the dragging element's current index
    // same properties as onEnd
  }
})