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| import React, { Component } from "react";
| import {
| Table,
| Tag,
| Form,
| Icon,
| Button,
| Input,
| Radio,
| Select,
| message,
| Collapse,
| } from "antd";
|
| import { excelList } from "@/api/excel";
| const { Panel } = Collapse;
| const columns = [
| {
| title: "Id",
| dataIndex: "id",
| key: "id",
| width: 200,
| align: "center",
| },
| {
| title: "Title",
| dataIndex: "title",
| key: "title",
| width: 200,
| align: "center",
| },
| {
| title: "Author",
| key: "author",
| dataIndex: "author",
| width: 100,
| align: "center",
| render: (author) => <Tag key={author}>{author}</Tag>,
| },
| {
| title: "Readings",
| dataIndex: "readings",
| key: "readings",
| width: 195,
| align: "center",
| },
| {
| title: "Date",
| dataIndex: "date",
| key: "date",
| width: 195,
| align: "center",
| },
| ];
| class Excel extends Component {
| _isMounted = false; // 这个变量是用来标志当前组件是否挂载
| state = {
| list: [],
| filename: "excel-file",
| autoWidth: true,
| bookType: "xlsx",
| downloadLoading: false,
| selectedRows: [],
| selectedRowKeys: [],
| };
| fetchData = () => {
| excelList().then((response) => {
| const list = response.data.data.items;
| if (this._isMounted) {
| this.setState({ list });
| }
| });
| };
| componentDidMount() {
| this._isMounted = true;
| this.fetchData();
| }
| componentWillUnmount() {
| this._isMounted = false;
| }
| onSelectChange = (selectedRowKeys, selectedRows) => {
| this.setState({ selectedRows, selectedRowKeys });
| };
| handleDownload = (type) => {
| if (type === "selected" && this.state.selectedRowKeys.length === 0) {
| message.error("至少选择一项进行导出");
| return;
| }
| this.setState({
| downloadLoading: true,
| });
| import("@/lib/Export2Excel").then((excel) => {
| const tHeader = ["Id", "Title", "Author", "Readings", "Date"];
| const filterVal = ["id", "title", "author", "readings", "date"];
| const list = type === "all" ? this.state.list : this.state.selectedRows;
| const data = this.formatJson(filterVal, list);
| excel.export_json_to_excel({
| header: tHeader,
| data,
| filename: this.state.filename,
| autoWidth: this.state.autoWidth,
| bookType: this.state.bookType,
| });
| this.setState({
| selectedRowKeys: [], // 导出完成后将多选框清空
| downloadLoading: false,
| });
| });
| };
| formatJson(filterVal, jsonData) {
| return jsonData.map(v => filterVal.map(j => v[j]))
| }
| filenameChange = (e) => {
| this.setState({
| filename: e.target.value,
| });
| };
| autoWidthChange = (e) => {
| this.setState({
| autoWidth: e.target.value,
| });
| };
| bookTypeChange = (value) => {
| this.setState({
| bookType: value,
| });
| };
| render() {
| const { selectedRowKeys } = this.state;
| const rowSelection = {
| selectedRowKeys,
| onChange: this.onSelectChange,
| };
| return (
| <div className="app-container">
| <Collapse defaultActiveKey={["1"]}>
| <Panel header="导出选项" key="1">
| <Form layout="inline">
| <Form.Item label="文件名:">
| <Input
| style={{ width: "250px" }}
| prefix={
| <Icon type="file" style={{ color: "rgba(0,0,0,.25)" }} />
| }
| placeholder="请输入文件名(默认excel-file)"
| onChange={this.filenameChange}
| />
| </Form.Item>
| <Form.Item label="单元格宽度是否自适应:">
| <Radio.Group
| onChange={this.autoWidthChange}
| value={this.state.autoWidth}
| >
| <Radio value={true}>是</Radio>
| <Radio value={false}>否</Radio>
| </Radio.Group>
| </Form.Item>
| <Form.Item label="文件类型:">
| <Select
| defaultValue="xlsx"
| style={{ width: 120 }}
| onChange={this.bookTypeChange}
| >
| <Select.Option value="xlsx">xlsx</Select.Option>
| <Select.Option value="csv">csv</Select.Option>
| <Select.Option value="txt">txt</Select.Option>
| </Select>
| </Form.Item>
| <Form.Item>
| <Button
| type="primary"
| icon="file-excel"
| onClick={this.handleDownload.bind(null, "all")}
| >
| 全部导出
| </Button>
| </Form.Item>
| <Form.Item>
| <Button
| type="primary"
| icon="file-excel"
| onClick={this.handleDownload.bind(null, "selected")}
| >
| 导出已选择项
| </Button>
| </Form.Item>
| </Form>
| </Panel>
| </Collapse>
| <br />
| <Table
| bordered
| columns={columns}
| rowKey={(record) => record.id}
| dataSource={this.state.list}
| pagination={false}
| rowSelection={rowSelection}
| loading={this.state.downloadLoading}
| />
| </div>
| );
| }
| }
|
| export default Excel;
|
|
