import React, { Component } from 'react';
import XLSX from 'xlsx';

import CsvViewer from './csv-viewer';

class XlsxViewer extends Component {
 constructor(props) {
super(props);
this.state = this.pars,javascript,reactjs"/>
	














    

		

        

            
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首页  > 解决方案 > 错误：无效的 HTML：在 xlsx 反应组件中找不到
import React, { Component } from 'react';
import XLSX from 'xlsx';

import CsvViewer from './csv-viewer';

class XlsxViewer extends Component {
 constructor(props) {
super(props);
this.state = this.pars












javascript - 错误：无效的 HTML：在 xlsx 反应组件中找不到
import React, { Component } from 'react';
import XLSX from 'xlsx';

import CsvViewer from './csv-viewer';

class XlsxViewer extends Component {
 constructor(props) {
super(props);
this.state = this.pars






问题描述



import React, { Component } from 'react';
import XLSX from 'xlsx';

import CsvViewer from './csv-viewer';

class XlsxViewer extends Component {
 constructor(props) {
super(props);
this.state = this.parse();
}

parse() {
const dataArr = new Uint8Array(this.props.data);
const arr = [];

for (let i = 0; i !== dataArr.length; i += 1) {
  arr.push(String.fromCharCode(dataArr[i]));
}

const workbook = XLSX.read(arr.join(''), { type: 'binary' });
const names = Object.keys(workbook.Sheets);
const sheets = names.map(name => (
  XLSX.utils.sheet_to_csv(workbook.Sheets[name])
));

return { sheets, names, curSheetIndex: 0 };
  }

renderSheetNames(names) {
const sheets = names.map((name, index) => (
  <input
    key={name}
    type="button"
    value={name}
    onClick={() => {
      this.setState({ curSheetIndex: index });
    }}
  />
));

return (
  <div className="sheet-names">
    {sheets}
  </div>
);




}



 renderSheetData(sheet) {
 const csvProps = Object.assign({}, this.props, { data: sheet });
 return (
   <CsvViewer {...csvProps} />
 );
  }

  render() {
    const { sheets, names, curSheetIndex } = this.state;
    return (
  <div className="spreadsheet-viewer">
    {this.renderSheetNames(names)}
    {this.renderSheetData(sheets[curSheetIndex || 0])}
  </div>
);




} }



导出默认 XlsxViewer；



我正在尝试加载 Xlsx 文件我收到错误“./src/components/Fileviewer/images/SimpleSpreadsheet.xlsx 模块构建失败（来自（webpack）-xlsx-loader/index.js）：错误：无效的 HTML：可以找不到 ”



上述错误出现较早，这是由于我已安装和配置的 webpack-xslx-loader 但未更改错误






您可以创建一个TreeMap而不是Hashmap.



将员工 id 作为 TreeMap 中的键，将员工对象作为值。（因为您想根据员工 id 进行排序，而员工 id 对于您的上下文来说似乎是唯一的。）



TreeMap<Integer, EmpObj> map = new TreeMap<>();




如果您无法更改地图 ID，则可以按值对哈希图进行排序。请参阅此链接。


标签： javascriptreactjs


解决方案





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