注意：该功能只能过滤可一次性返回全部数据的表格，通过接口分页查询的请自主按照需求改动哈~

实现步骤：

1.在要过滤的列表表头增加过滤图标，点击图标显示浮窗
2.浮窗内显示整列可选选项，通过勾选单选或者全选、搜索框来过滤表格内容

效果如下：

表格页面index.vue:

<template><div><a-table :columns="column" :data-source="data" @change="change"><template v-for="(col, index) in column"><span :slot="col.slots.title" v-if="col.filterable" :key="index"><!--  --><popover-filter:ref="'popover_' + col.slots.title":key="col.dataIndex":label="col.dataIndex":field="col.dataIndex":shoppingType="0":filters="col.filtersList"@filter="handleFilterTable"/><span slot-scope="text, record">{{ text }}{{ record }}</span></span></template></a-table></div>
</template>
<script>
import PopoverFilter from "./popover-filter.vue";
export default {components: {PopoverFilter},data() {return {column: [],data: [],filters: {},allData: []};},mounted() {const columns = [{title: "序号",dataIndex: "id",customRender: (text, row, index) => {return index + 1;},width: 86},{//title: "Name",dataIndex: "name",width: "20%",slots: { title: "name" },filterable: true,onFilter: function(value, record) {console.log("value", value);return record.name.indexOf(value) != -1;}},{//title: "Gender",dataIndex: "gender",filters: [],width: "20%",filterable: true,slots: { title: "gender" }},{title: "Email",dataIndex: "email"}];this.column = columns;this.data = [{ name: "jone ke", gender: "Male", email: "23293238@qq.com" },{ name: "meary", gender: "Male1", email: "23293238@qq.com" },{ name: "lu xi", gender: "Doke", email: "23293238@qq.com" },{ name: "jiner", gender: "Doke1", email: "23293238@qq.com" },{ name: "geng", gender: "Doke1", email: "23293238@qq.com" }];this.allData = [...this.data];//要显示过滤的列，dataIndexlet filterList = ["name", "gender"];this.column.forEach(item => {if (filterList.includes(item.dataIndex)) {//获取每列所有数据，去除重复项item.filtersList = [...new Set(this.data.map(e => e[item.dataIndex]))];}});//console.log("this.column", this.column);},methods: {change(a, b, c) {console.log(a);console.log(b);console.log(c);},handleFilterTable(checkedList, field, label) {console.log(checkedList, field, label);this.filters[field] = checkedList;this.data = [...this.allData];Object.keys(this.filters).forEach(e => {this.data = this.data.filter(i =>this.filters[e].length > 0 ? this.filters[e].includes(i[e]) : true);});},changeFilter(checkedList, field) {console.log(checkedList, field);//this.filterInfo[this.typeValue][field] = checkedList;}}
};
</script>
<style lang="less" scoped></style>

浮窗组件popover-filter.vue：

<template><div class="filter-column"><!-- visible=true面板显示时或者有勾选项时icon图标高亮 --><divclass="popover-title":class="{ 'popover-title-active': visible || this.selected.length }"><span>{{ label }}</span><span class="caret-wrapper"><i class="sort-caret ascending"></i><i class="sort-caret descending"></i></span><a-popoveroverlayClassName="popover"width="190"ref="filter"popper-class="m-popper"v-model="visible"trigger="click":overlayStyle="{ width: '200px' }"><span class="filter-icon" @click.stop="handleClick"></span><template slot="content"><a-inputplaceholder="请输入关键词"suffix-icon="a-icon-search"size="small"@input="handleFilter($event)"v-model="keyWord"><a-icon slot="prefix" type="search" /></a-input><div class="popover-filter" v-loading="loading"><a-checkbox:indeterminate="indeterminate":checked="checkAll"@change="handleCheckAllSource">全选{{ filters.length ? `（${filters.length}）` : "" }}</a-checkbox><a-checkbox-groupv-model="checkedValue"class="popover-checkbox-group"@change="handleCheck"><a-checkboxv-for="item in filterOptions":key="item":value="item"><span>{{ item }}</span></a-checkbox></a-checkbox-group></div><div class="popover-btn-group"><a-buttontype="text"size="small"class="popover-btn popover-btn-reset":class="{ 'popover-btn-active': checkedValue.length > 0 }"@click="handleReset">重置</a-button><a-buttontype="primary"size="small"class="popover-btn"@click="handleSearch">确定</a-button></div></template></a-popover></div></div>
</template><script>
export default {components: {},props: {label: {type: String,default: ""},field: {type: String,default: ""},shoppingType: {type: Number,default: 0},filters: {type: Array,default: () => []}},data() {return {// 是否显示筛选框showFilter: false,interval: null,keyWord: "",loading: false,// 当前选择项checkedValue: [],selected: [],// 选择项列表options: [],filterOptions: [],checkAll: false,indeterminate: false,visible: false};},watch: {showFilter: {handler(val) {if (val) {this.getList();} else {this.keyWord = "";}}}},created() {},mounted() {this.options = this.filters;this.filterOptions = [...this.options];},methods: {handleClick() {//this.filterOptions = [...this.options];//this.$emit("click");this.visible = !this.visible;if (this.visible) {//面板显示时回显勾选this.checkedValue = [...this.selected];//显示全部勾选项this.getList();//清空搜索框this.keyWord = "";//判断全选勾选框状态this.checkAll = this.checkedValue.length === this.filterOptions.length;this.indeterminate =this.checkedValue.length > 0 &&this.checkedValue.length < this.filterOptions.length;}},handleFilter() {if (this.interval) {clearTimeout(this.interval);}this.interval = setTimeout(() => {this.filterOptions = this.options.filter(ele =>ele.toLowerCase().includes(this.keyWord.trim().toLowerCase()));console.log("搜索");clearTimeout(this.interval);this.interval = null;}, 1000);},getList() {// this.loading = true;// const params = {// 	shoppingType: this.shoppingType,// 	fieldStr: this.field,// };// this.axios// 	.post(`${this.$baseUrl}/mds/web/shopping/getCartSelect`, params)// 	.then((res) => {// 		this.loading = false;// 		if (res.data.code == "200") {// 			console.log("来源", res);// 			this.options = res.data.data || [];// 			this.filterOptions = [...this.options];// 			this.selected = this.selected.filter(ele => this.options.includes(ele));// 			this.checkedValue = [...this.selected];// 			this.$emit('changeFilter', this.checkedValue, this.field);// 		}// 	})// 	.catch((res) => {// 		this.loading = false;// 	});this.filterOptions = [...this.options];},handleCheck(val) {console.log("val", val, this.checkedValue);const count = val.length;this.checkAll = count === this.filterOptions.length;this.indeterminate = count > 0 && count < this.filterOptions.length;},handleCheckAllSource() {if (this.checkedValue.length == this.filterOptions.length) {this.checkedValue = [];this.checkAll = false;} else {this.checkedValue = this.filterOptions;this.checkAll = true;}},handleReset() {this.checkedValue = [];this.checkAll = false;this.indeterminate = false;this.keyWord = "";this.filterOptions = [...this.options];/* this.$refs.filter.doClose();this.$emit("filter", this.checkedValue, this.field); */},handleSearch() {this.selected = [...this.checkedValue];this.visible = false;this.$emit("filter", this.checkedValue, this.field, this.label);},close() {this.$refs.filter.doClose();}}
};
</script>
<style lang="less" scoped>
.filter-column {.caret-wrapper {width: 10px;margin: 0 2px 0 8px;.sort-caret {left: 0;}}.popover-title::after {display: none;}.filter-icon {width: 22px;height: 22px;display: inline-block;background: url("../../assets/filter-default.svg") 50% no-repeat;position: absolute;top: 50%;transform: translateY(-50%);margin-left: 4px;cursor: pointer;&:hover {background: url("../../assets/filter.svg") 50% no-repeat;background-color: #d3dbea;border-radius: 2px;}}.popover-title-active .filter-icon {background: url("../../assets/filter.svg") 50% no-repeat !important;background-color: #d3dbea !important;border-radius: 2px;}
}
</style>
<style>
.popover .ant-popover-inner-content {padding: 12px;
}
.popover-filter {margin: 8px -12px;padding: 4px 12px;border-top: 1px solid #dee2ed;border-bottom: 1px solid #dee2ed;max-height: 200px;overflow-y: auto;
}
.popover-filter .ant-checkbox-wrapper {margin-left: 0;width: 100%;margin-bottom: 4px;
}
.popover-filter .popover-checkbox-group .ant-checkbox-wrapper {margin-left: 0;width: 100%;margin-bottom: 4px;
}
.popover-btn-group {display: flex;justify-content: space-between;
}
</style>