JAVA-读取excel转成html 将excel表格转换为HTML文件格式 转成前端表格样式

博客背景：JAVA项目，将Excel转换为HTML的便捷工具类。可快速上手使用~

1、调用函数

excelPositon为存放excel的位置；htmlPositon为将要存放html的位置。
可以直接设置位置为磁盘中指定位置；如下默认为项目运行的上一级目录

	public void excel2Html() {
        String excelPositon = "../test.xlsx";
        String htmlPositon =  "../test.html";
        //excel转html；src为excel位置，htmlPositon为存放html文件位置
        Excel2HtmlUtil.readExcelToHtml(excelPositon, htmlPositon, true, "xlsx", "test");
    }
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2、excel转html工具类

创建相应工具类Excel2HtmlUtil
改编了一些表头、第一列的样式；还有链接时的样式。如无需可以在对应位置去掉即可~
调用函数readExcelToHtml()可直接使用转换~

//excel转html工具类
package com.xx.util;

import org.apache.commons.io.FileUtils;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.*;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class Excel2HtmlUtil {
    /**
     *
     * @param filePath    excel源文件文件的路径
     * @param htmlPositon 生成的html文件的路径
     * @param isWithStyle 是否需要表格样式 包含 字体 颜色 边框 对齐方式
     * @throws Exception
     *
     */
    public static String readExcelToHtml(String filePath, String htmlPositon, boolean isWithStyle,String type,String attname) throws Exception {
        InputStream is = null;
        String htmlExcel = null;
        Map<String,String> stylemap = new HashMap<String,String>();
        try {
            if("csv".equalsIgnoreCase(type)) {
                htmlExcel = getCSVInfo(filePath,htmlPositon);
                writeFile1(htmlExcel, htmlPositon,stylemap,attname);
            }else {
                File sourcefile = new File(filePath);
                is = new FileInputStream(sourcefile);
                Workbook wb = WorkbookFactory.create(is);
                if (wb instanceof XSSFWorkbook) { // 03版excel处理方法
                    XSSFWorkbook xWb = (XSSFWorkbook) wb;
                    htmlExcel = getExcelInfo(xWb, isWithStyle,stylemap);
                } else if (wb instanceof HSSFWorkbook) { // 07及10版以后的excel处理方法
                    HSSFWorkbook hWb = (HSSFWorkbook) wb;
                    htmlExcel = getExcelInfo(hWb, isWithStyle,stylemap);
                }
                writeFile(htmlExcel, htmlPositon,stylemap,attname);
            }
        } catch (Exception e) {
            System.out.println("文件被损坏或不能打开，无法预览");
            //throw new Exception("文件被损坏或不能打开，无法预览");
        } finally {
            try {
                if(is!=null){
                    is.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return htmlPositon;
    }

    private static void getcscvvalue(BufferedReader reader,List col,String oldvalue,List list) {
        String line = null;
        try {
            while((line=reader.readLine())!=null){
                String[] item = line.split(",",-1);
                boolean isbreak = false;
                for(int i=0;i<item.length;i++) {
                    String value = item[i];
                    if(value.endsWith("\"")) {
                        value = oldvalue+value;
                        col.add(value);
                    }else if(item.length==1) {
                        value = oldvalue+value;
                        getcscvvalue(reader,col,value,list);
                        isbreak = true;
                    }else if(value.startsWith("\"")){
                        getcscvvalue(reader,col,value,list);
                        isbreak = true;
                    }else {
                        col.add(value);
                    }
                }
                if(!isbreak) {
                    list.add(col);
                    col = new ArrayList();
                }
            }
        } catch (IOException e) {
        }
    }

    private static String getCSVInfo(String filePath,String htmlPositon) {
        StringBuffer sb = new StringBuffer();
        DataInputStream in = null;
        try {
            in=new DataInputStream(new FileInputStream(filePath));
            BufferedReader reader=new BufferedReader(new InputStreamReader(in));
            //reader.readLine();
            String line = null;
            List list = new ArrayList();
            while((line=reader.readLine())!=null){
                String[] item = line.split(",");
                List col = new ArrayList();
                for(int i=0;i<item.length;i++) {
                    String value = item[i];
                    if(value.startsWith("\"")) {
                        getcscvvalue(reader,col,value,list);
                    }else {
                        col.add(value);
                    }
                }
                list.add(col);
            }
            sb.append("");for(int i=0;i<list.size();i++){List col =(List) list.get(i);if(col==null||col.size()==0){
                    sb.append("");}
                sb.append("");for(int j=0;j<col.size();j++){String value =(String) col.get(j);if(value ==null||"".equals(value)){
                        sb.append("");continue;}else{
                        sb.append("");}}
                sb.append("");}
            sb.append("

             
                 
                 

                

                 
                     
                       
 
                        
                     
"+value+"
                    
                
            
");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }

    //读取excel文件，返回转换后的html字符串
    private static String getExcelInfo(Workbook wb, boolean isWithStyle, Map<String,String> stylemap) {
        StringBuffer sb = new StringBuffer();
        StringBuffer ulsb = new StringBuffer();
        ulsb.append("
");
        int num = wb.getNumberOfSheets();
        //遍历excel文件里的每一个sheet
        for(int i=0;i<num;i++) {
            Sheet sheet = wb.getSheetAt(i);// 获取第i个Sheet的内容
            String sheetName = sheet.getSheetName();
            if(i==0) {
                //ulsb.append("
"+sheetName+"
");
                ulsb.append("
" + sheetName + "
");
            }else {
                //sheet名字 加上了蓝色底色
                //ulsb.append("
"+sheetName+"
");
                ulsb.append("
" + sheetName + "
");
            }
            int lastRowNum = sheet.getLastRowNum();
            Map<String, String> map[] = getRowSpanColSpanMap(sheet);
            Map<String, String> map1[] = getRowSpanColSpanMap(sheet);
            sb.append(");if(i==0){
                sb.append("class='block'");}
            sb.append(">");Row row =null;// 兼容Cell cell =null;// 兼容int maxRowNum =0;int maxColNum =0;//遍历每一行for(int rowNum = sheet.getFirstRowNum(); rowNum <= lastRowNum; rowNum++){
                row = sheet.getRow(rowNum);if(row ==null){continue;}int lastColNum = row.getLastCellNum();for(int colNum =0; colNum < lastColNum; colNum++){
                    cell = row.getCell(colNum);if(cell ==null){// 特殊情况 空白的单元格会返回nullcontinue;}String stringValue =getCellValue1(cell);if(map1[0].containsKey(rowNum +","+ colNum)){
                        map1[0].remove(rowNum +","+ colNum);if(maxRowNum<rowNum){
                            maxRowNum = rowNum;}if(maxColNum<colNum){
                            maxColNum = colNum;}}elseif(map1[1].containsKey(rowNum +","+ colNum)){
                        map1[1].remove(rowNum +","+ colNum);if(maxRowNum<rowNum){
                            maxRowNum = rowNum;}if(maxColNum<colNum){
                            maxColNum = colNum;}continue;}if(stringValue ==null||"".equals(stringValue.trim())){continue;}else{if(maxRowNum<rowNum){
                            maxRowNum = rowNum;}if(maxColNum<colNum){
                            maxColNum = colNum;}}}}for(int rowNum = sheet.getFirstRowNum(); rowNum <= maxRowNum; rowNum++){
                row = sheet.getRow(rowNum);if(row ==null){
                    sb.append("");continue;}
                sb.append("");int lastColNum = row.getLastCellNum();for(int colNum =0; colNum <= maxColNum; colNum++){
                    cell = row.getCell(colNum);if(cell ==null){// 特殊情况 空白的单元格会返回null
                        sb.append("");continue;}String stringValue =getCellValue(cell);if(stringValue.equals("")){// 空字符串返空
                        sb.append(stringValue.replace(String.valueOf((char)160)," "));}String pattrenStr ="[a-zA-z]+://[^\\s]*";Pattern pattern =Pattern.compile(pattrenStr);Matcher matcher = pattern.matcher(stringValue);if(map[0].containsKey(rowNum +","+ colNum)){String pointString = map[0].get(rowNum +","+ colNum);
                        map[0].remove(rowNum +","+ colNum);int bottomeRow =Integer.valueOf(pointString.split(",")[0]);int bottomeCol =Integer.valueOf(pointString.split(",")[1]);int rowSpan = bottomeRow - rowNum +1;int colSpan = bottomeCol - colNum +1;if(rowNum ==0){
                            sb.append("");}
                sb.append("");}
            sb.append("

             
            
              
              

             
             
            
              
                   
                    
                
                
                   
                        
                        
                    
                     
                          
                         
                        
                         
                        
                            
                         
                        
                         
                        
                        
                    
                         
                        
                     
                         
                        
                         
                        
                    
                
            
              
                   

                    
                

                
                   
                        
 
                        
                    
                     
                         
                    
                     
                     
                    
                        
                            
                         
                         
                         
                         
                         
 + rowSpan + "' colspan= '" + colSpan + "' ");
                        }else{
                            sb.append("
);
                        }
                    } else if (map[1].containsKey(rowNum + "," + colNum)) {
                        map[1].remove(rowNum + "," + colNum);
                        continue;
                    } else {
                        if(rowNum == 0 || colNum == 0){
                            //列表头加粗&底色
                            sb.append("
);
                        }else{
                            sb.append("
);
                        }
                    }
                    if (isWithStyle) {
                        dealExcelStyle(wb, sheet, cell, sb,stylemap);// 处理单元格样式
                    }


                    sb.append(">");
                    //如果单元格为空要判断该单元格是不是通过其他单元格计算得到的
                    if (stringValue == null) {
//                    if (stringValue == null || "".equals(stringValue.trim())) {
                        FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();
                        if (evaluator.evaluate(cell) != null) {
                            //如果单元格的值是通过其他单元格计算来的，则通过单元格计算获取
                            String cellnumber = evaluator.evaluate(cell).getNumberValue() + "";
                            //如果单元格的值是小数，保留两位
                            if (null != cellnumber && cellnumber.contains(".")) {
                                String[] decimal = cellnumber.split("\\.");
                                if (decimal[1].length() > 2) {
                                    int num1 = decimal[1].charAt(0) - '0';
                                    int num2 = decimal[1].charAt(1) - '0';
                                    int num3 = decimal[1].charAt(2) - '0';
                                    if (num3 == 9) {
                                        num2 = 0;
                                    } else if (num3 >= 5) {
                                        num2 = num2 + 1;
                                    }
                                    cellnumber = decimal[0] + "." + num1 + num2;
                                }
                            }
                            stringValue = cellnumber;
                        }
                        sb.append(stringValue.replace(String.valueOf((char) 160), " "));
                    } else {
                        //如果是链接则使用该语句
                        if(matcher.matches()){
                            sb.append("+ stringValue + "\">点击查看内容");
                        }else{
                            // 将ascii码为160的空格转换为html下的空格（ ）
                            sb.append(stringValue.replace(String.valueOf((char) 160), " "));
                        }
                    }
                    sb.append("
                
            
");
        }
        ulsb.append("
");
        return ulsb.toString()+sb.toString();
    }


    private static Map<String, String>[] getRowSpanColSpanMap(Sheet sheet) {
        Map<String, String> map0 = new HashMap<String, String>();
        Map<String, String> map1 = new HashMap<String, String>();
        int mergedNum = sheet.getNumMergedRegions();
        CellRangeAddress range = null;
        for (int i = 0; i < mergedNum; i++) {
            range = sheet.getMergedRegion(i);
            int topRow = range.getFirstRow();
            int topCol = range.getFirstColumn();
            int bottomRow = range.getLastRow();
            int bottomCol = range.getLastColumn();
            map0.put(topRow + "," + topCol, bottomRow + "," + bottomCol);
            // System.out.println(topRow + "," + topCol + "," + bottomRow + "," +
            // bottomCol);
            int tempRow = topRow;
            while (tempRow <= bottomRow) {
                int tempCol = topCol;
                while (tempCol <= bottomCol) {
                    map1.put(tempRow + "," + tempCol, "");
                    tempCol++;
                }
                tempRow++;
            }
            map1.remove(topRow + "," + topCol);
        }
        Map[] map = { map0, map1 };
        return map;
    }

    private static String getCellValue1(Cell cell) {
        String result = new String();
        switch (cell.getCellType()) {
            case NUMERIC:// 数字类型
                result = "1";
                break;
            case STRING:// String类型
                result = "1";
                break;
            case BLANK:
                result = "";
                break;
            default:
                result = "";
                break;
        }
        return result;
    }

    /**
     * 获取表格单元格Cell内容
     *
     * @param cell
     * @return
     */
    private static String getCellValue(Cell cell) {
        String result = new String();
        switch (cell.getCellType()) {
            case NUMERIC:// 数字类型
                if (DateUtil.isCellDateFormatted(cell)) {// 处理日期格式、时间格式
                    SimpleDateFormat sdf = null;
                    if (cell.getCellStyle().getDataFormat() == HSSFDataFormat.getBuiltinFormat("h:mm")) {
                        sdf = new SimpleDateFormat("HH:mm");
                    } else {// 日期
                        sdf = new SimpleDateFormat("yyyy-MM-dd");
                    }
                    Date date = cell.getDateCellValue();
                    result = sdf.format(date);
                } else if (cell.getCellStyle().getDataFormat() == 58) {
                    // 处理自定义日期格式：m月d日(通过判断单元格的格式id解决，id的值是58)
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                    double value = cell.getNumericCellValue();
                    Date date = org.apache.poi.ss.usermodel.DateUtil.getJavaDate(value);
                    result = sdf.format(date);
                } else {
                    double value = cell.getNumericCellValue();
                    CellStyle style = cell.getCellStyle();
                    DecimalFormat format = new DecimalFormat();
                    String temp = style.getDataFormatString();
                    // 单元格设置成常规
                    if (temp.equals("General")) {
                        format.applyPattern("#");
                    }
                    result = format.format(value);
                }
                break;
            case STRING:// String类型
                result = cell.getRichStringCellValue().toString();
                break;
            case BLANK:
                result = "";
                break;
            default:
                result = "";
                break;
        }
        return result;
    }

    /**
     * 处理表格样式
     *
     * @param wb
     * @param sheet
     * @param sb
     */
    private static void dealExcelStyle(Workbook wb, Sheet sheet, Cell cell, StringBuffer sb,Map<String,String> stylemap) {
        CellStyle cellStyle = cell.getCellStyle();
        if (cellStyle != null) {
            HorizontalAlignment alignment = cellStyle.getAlignment();
            // sb.append("align='" + convertAlignToHtml(alignment) + "' ");//单元格内容的水平对齐方式
            VerticalAlignment verticalAlignment = cellStyle.getVerticalAlignment();
            String _style = "vertical-align:"+convertVerticalAlignToHtml(verticalAlignment)+";";
            if (wb instanceof XSSFWorkbook) {
                XSSFFont xf = ((XSSFCellStyle) cellStyle).getFont();
                //short boldWeight = xf.getBoldweight();
                short boldWeight = 400;
                String align = convertAlignToHtml(alignment);
                int columnWidth = sheet.getColumnWidth(cell.getColumnIndex());
                _style +="font-weight:" + boldWeight + ";font-size: " + xf.getFontHeight() / 2 + "%;width:" + columnWidth + "px;text-align:" + align + ";";

                XSSFColor xc = xf.getXSSFColor();
                if (xc != null && !"".equals(xc)) {
                    _style +="color:#" + xc.getARGBHex().substring(2) + ";";
                }

                XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor();
                if (bgColor != null && !"".equals(bgColor)) {
                    _style +="background-color:#" + bgColor.getARGBHex().substring(2) + ";"; // 背景颜色
                }
                _style +=getBorderStyle(0, cellStyle.getBorderTop().getCode(),((XSSFCellStyle) cellStyle).getTopBorderXSSFColor());
                _style +=getBorderStyle(1, cellStyle.getBorderRight().getCode(),((XSSFCellStyle) cellStyle).getRightBorderXSSFColor());
                _style +=getBorderStyle(2, cellStyle.getBorderBottom().getCode(),((XSSFCellStyle) cellStyle).getBottomBorderXSSFColor());
                _style +=getBorderStyle(3, cellStyle.getBorderLeft().getCode(),((XSSFCellStyle) cellStyle).getLeftBorderXSSFColor());
            } else if (wb instanceof HSSFWorkbook) {
                HSSFFont hf = ((HSSFCellStyle) cellStyle).getFont(wb);
                short boldWeight = hf.getFontHeight();
                short fontColor = hf.getColor();
                HSSFPalette palette = ((HSSFWorkbook) wb).getCustomPalette(); // 类HSSFPalette用于求的颜色的国际标准形式
                HSSFColor hc = palette.getColor(fontColor);
                String align = convertAlignToHtml(alignment);
                int columnWidth = sheet.getColumnWidth(cell.getColumnIndex());
                _style +="font-weight:" + boldWeight + ";font-size: " + hf.getFontHeight() / 2 + "%;text-align:" + align + ";width:" + columnWidth + "px;";
                String fontColorStr = convertToStardColor(hc);
                if (fontColorStr != null && !"".equals(fontColorStr.trim())) {
                    _style +="color:" + fontColorStr + ";"; // 字体颜色
                }
                short bgColor = cellStyle.getFillForegroundColor();
                hc = palette.getColor(bgColor);
                String bgColorStr = convertToStardColor(hc);
                if (bgColorStr != null && !"".equals(bgColorStr.trim())) {
                    _style +="background-color:" + bgColorStr + ";"; // 背景颜色
                }
                _style +=getBorderStyle(palette, 0, cellStyle.getBorderTop().getCode(), cellStyle.getTopBorderColor());
                _style +=getBorderStyle(palette, 1, cellStyle.getBorderRight().getCode(), cellStyle.getRightBorderColor());
                _style +=getBorderStyle(palette, 3, cellStyle.getBorderLeft().getCode(), cellStyle.getLeftBorderColor());
                _style +=getBorderStyle(palette, 2, cellStyle.getBorderBottom().getCode(), cellStyle.getBottomBorderColor());
            }
            String calssname="";
            if(!stylemap.containsKey(_style)) {
                int count = stylemap.size();
                calssname = "td"+count;
                stylemap.put(_style, calssname);
            }else {
                calssname = stylemap.get(_style);
            }
            if(!"".equals(calssname)) {
                sb.append("class='"+calssname+"'");
            }
        }
    }

    /**
     * 单元格内容的水平对齐方式
     *
     * @param alignment
     * @return
     */
    private static String convertAlignToHtml(HorizontalAlignment alignment) {
        String align = "center";
        switch (alignment) {
            case LEFT:
                align = "left";
                break;
            case CENTER:
                align = "center";
                break;
            case RIGHT:
                align = "right";
                break;
            default:
                break;
        }
        return align;
    }

    /**
     * 单元格中内容的垂直排列方式
     *
     * @param verticalAlignment
     * @return
     */
    private static String convertVerticalAlignToHtml(VerticalAlignment verticalAlignment) {

        String valign = "middle";
        switch (verticalAlignment) {
            case BOTTOM:
                valign = "bottom";
                break;
            case CENTER:
                valign = "middle";
                break;
            case TOP:
                valign = "top";
                break;
            default:
                break;
        }
        return valign;
    }

    private static String convertToStardColor(HSSFColor hc) {
        StringBuffer sb = new StringBuffer("");
        if (hc != null) {
            if (HSSFColor.HSSFColorPredefined.AUTOMATIC.getIndex() == hc.getIndex()) {
                return null;
            }
            sb.append("#");
            for (int i = 0; i < hc.getTriplet().length; i++) {
                sb.append(fillWithZero(Integer.toHexString(hc.getTriplet()[i])));
            }
        }
        return sb.toString();
    }

    private static String fillWithZero(String str) {
        if (str != null && str.length() < 2) {
            return "0" + str;
        }
        return str;
    }

    static String[] bordesr = { "border-top:", "border-right:", "border-bottom:", "border-left:" };
    static String[] borderStyles = { "solid ", "solid ", "solid ", "solid ", "solid ", "solid ", "solid ", "solid ",
            "solid ", "solid", "solid", "solid", "solid", "solid" };

    private static String getBorderStyle(HSSFPalette palette, int b, short s, short t) {
        if (s == 0)
            return bordesr[b] + borderStyles[s] + "#d0d7e5 1px;";
        String borderColorStr = convertToStardColor(palette.getColor(t));
        borderColorStr = borderColorStr == null || borderColorStr.length() < 1 ? "#000000" : borderColorStr;
        return bordesr[b] + borderStyles[s] + borderColorStr + " 1px;";
    }

    private static String getBorderStyle(int b, short s, XSSFColor xc) {
        if (s == 0)
            return bordesr[b] + borderStyles[s] + "#d0d7e5 1px;";
        if (xc != null && !"".equals(xc)) {
            String borderColorStr = xc.getARGBHex();// t.getARGBHex();
            borderColorStr = borderColorStr == null || borderColorStr.length() < 1 ? "#000000"
                    : borderColorStr.substring(2);
            return bordesr[b] + borderStyles[s] + borderColorStr + " 1px;";
        }
        return "";
    }

    /*
     * @param content 生成的excel表格标签
     *
     * @param htmlPath 生成的html文件地址
     */
    private static void writeFile(String content, String htmlPath, Map<String,String> stylemap,String name) {
        File file2 = new File(htmlPath);
        StringBuilder sb = new StringBuilder();
        try {
            file2.createNewFile();// 创建文件
            sb.append("");
            sb.append("
");
            sb.append(content);
            sb.append("
");
            sb.append("");
            FileUtils.write(file2, sb.toString(),"UTF-8");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void writeFile1(String content, String htmlPath, Map<String,String> stylemap,String name) {
        File file2 = new File(htmlPath);
        StringBuilder sb = new StringBuilder();
        try {
            file2.createNewFile();// 创建文件
            sb.append("");
            sb.append("
");
            sb.append(content);
            sb.append("
");
            sb.append("");
            FileUtils.write(file2, sb.toString(),"UTF-8");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

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3、html样式解析

3.1 加载图片-URL链接

src设置需要加载的图片地址，alt是未加载到链接内容时展示的提示语

<img src="http://www.baidu.com/images/xx.jpg" alt="暂未加载图像">
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3.2 设置图片大小

可以直接按比例设置100%；也可以直接按100px等比例设置

width="图片宽度" height="图片高度"
width=100%
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2

3.3 设置标题-底色&加粗

hX是标题设置；background-color设置底色；font-weight:bold是加粗

<h4 style="background-color:LightSkyBlue;font-weight:bold;">标题h4>
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3.4 圆点样式

设置为带圆点样式的语句

<li id='li_1' οnclick='changetab(1)'>第一张li>
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3.5 url链接显示为设置内容

不直接展示该链接，显示为“点击查看内容”可点击跳转
点击查看内容

3.6 表格 – 一行三列

<table border="1">
<tr>
  <td>100td>
  <td>200td>
  <td>300td>
tr>
table>
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3.6 表格 – 两行三列

<table border="1">
<tr>
  <td> 1 td>
  <td> 2 td>
  <td> 3 td>
tr>
<tr>
  <td>400td>
  <td>500td>
  <td>600td>
tr>
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3.7 段落

段落正文中的具体内容

<p>段落段落段落段落段落段落段落p>
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4、时间工具类

专供表格使用相关的时间工具类，解决格式转换的问题。

//DateUtil
public class DateUtil {
    public static boolean isCellDateFormatted(Cell cell)
    {
        if (cell == null) {
            return false;
        }
        boolean bDate = false;

        double d = cell.getNumericCellValue();
        if (isValidExcelDate(d)) {
            CellStyle style = cell.getCellStyle();
            if (style == null) {
                return false;
            }
            int i = style.getDataFormat();
            String f = style.getDataFormatString();
            bDate = isADateFormat(i, f);
        }
        return bDate;
    }

    public static boolean isADateFormat(int formatIndex, String formatString)
    {
        if (isInternalDateFormat(formatIndex)) {
            return true;
        }

        if ((formatString == null) || (formatString.length() == 0)) {
            return false;
        }

        String fs = formatString;
        //添加以支持汉字格式wingzing
        fs = fs.replaceAll("[\"|\']","").replaceAll("[年|月|日|时|分|秒|毫秒|微秒]", "");

        fs = fs.replaceAll("\\\\-", "-");

        fs = fs.replaceAll("\\\\,", ",");

        fs = fs.replaceAll("\\\\.", ".");

        fs = fs.replaceAll("\\\\ ", " ");

        fs = fs.replaceAll(";@", "");

        fs = fs.replaceAll("^\\[\\$\\-.*?\\]", "");

        fs = fs.replaceAll("^\\[[a-zA-Z]+\\]", "");

        return (fs.matches("^[yYmMdDhHsS\\-/,. :]+[ampAMP/]*$"));
    }

    public static boolean isInternalDateFormat(int format)
    {
        switch (format) { case 14:
            case 15:
            case 16:
            case 17:
            case 18:
            case 19:
            case 20:
            case 21:
            case 22:
            case 45:
            case 46:
            case 47:
                return true;
            case 23:
            case 24:
            case 25:
            case 26:
            case 27:
            case 28:
            case 29:
            case 30:
            case 31:
            case 32:
            case 33:
            case 34:
            case 35:
            case 36:
            case 37:
            case 38:
            case 39:
            case 40:
            case 41:
            case 42:
            case 43:
            case 44: } return false;
    }

    public static boolean isValidExcelDate(double value)
    {
        return (value > -4.940656458412465E-324D);
    }
}
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参考：
https://www.runoob.com/html/html-colornames.html
https://www.cnblogs.com/mythz/p/14177739.html
https://blog.csdn.net/qq_33697094/article/details/122736603