meidu2021/daju/target/classes/cn/com/lzt/personnelbasearchivesmanage/util/CopyExcelSheetToAnotherExcelSheet.java

package cn.com.lzt.personnelbasearchivesmanage.util;

import oracle.sql.NUMBER;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.util.CellRangeAddress;

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


public class CopyExcelSheetToAnotherExcelSheet {

    /**
     * 创建新的Excel并复制sheet
     *
     * @param args
     * @author zbw
     * 2017-12-18
     */
    public static void main(String[] args) {

        String fromPath = "F:/员工基本档案列表.xls";// excel存放路径
        String fileUUID = java.util.UUID.randomUUID().toString().replace("-", "");
        String toPathPart = "F:/upFiles";// 保存新EXCEL路径
        String toPath = toPathPart + "/zbwImportTemp/" + fileUUID + "/";// 保存新EXCEL路径
//		CopyExcelSheetToAnotherExcelSheet(fromPath,toPathPart,toPath);


    }


    public static List<String> CopyExcelSheetToAnotherExcelSheet(InputStream inputStream,
                                                                 String toPathPart, String toPath) {
		
		/*String fromPath = "F:/员工基本档案列表.xls";// excel存放路径
		String fileUUID=GetUUID.generate();
        String toPathPart = "F:/upFiles/zbwImportTemp/";// 保存新EXCEL路径
        String toPath = "F:/upFiles/zbwImportTemp/"+fileUUID+"/";// 保存新EXCEL路径
        System.out.println(fileUUID);*/
        List<String> list = new ArrayList<String>();
        // 新的excel 文件名
        String excelName = "";
//        File file = new File(fromPath);
        HSSFWorkbook wb = null;
        try {
//			InputStream in = new FileInputStream(file);
            wb = new HSSFWorkbook(inputStream);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        for (int i = 0; i < wb.getNumberOfSheets(); i++) {//sheet
            HSSFSheet sheet = wb.getSheetAt(i);
            excelName = sheet.getSheetName();
            list.add(excelName);
            // 创建新的excel
            HSSFWorkbook wbCreat = new HSSFWorkbook();
            HSSFSheet sheetCreat = wbCreat.createSheet(sheet.getSheetName());
            // 复制源表中的合并单元格
            MergerRegion(sheetCreat, sheet);
            for (int k = 0; k < sheet.getPhysicalNumberOfRows(); k++) {//row
                // 取得源有excel Sheet的行
                HSSFRow row = sheet.getRow(k);
                // 创建新建excel Sheet的行
                HSSFRow rowCreat = sheetCreat.createRow(k);

                // 单元格式样
                for (int j = 0; j < row.getPhysicalNumberOfCells(); j++) {//cell
//                	System.out.print(row.getCell(j)+"\t");
                    // 自动适应列宽 貌似不起作用
                    //sheetCreat.autoSizeColumn(j);
                    rowCreat.createCell(j);
                    String strVal = "";

                    if (row.getCell(j) != null && row.getCell(j).toString().length() > 0) {
                        String myCell = parseExcel(row.getCell(j));

//                    	row.getCell(j).setCellType(Cell.CELL_TYPE_STRING);
//                    	strVal = removeInternalBlank(row.getCell(j).getStringCellValue());
                        strVal = myCell;
                    }
                    rowCreat.getCell(j).setCellValue(strVal);
                }
            }

//            System.out.println();
            File fileVal = new File(toPath);
            //如果文件夹不存在则创建  
            if (!fileVal.exists() && !fileVal.isDirectory()) {
//                System.out.println("//不存在");
                File fileVal2 = new File(toPathPart);
                if (!fileVal2.exists() && !fileVal2.isDirectory()) {
                    fileVal.mkdirs();
                } else {
                    fileVal.mkdir();
                }

            } else {
//                System.out.println("//目录存在");
            }
            FileOutputStream fileOut = null;
            try {
                fileOut = new FileOutputStream(toPath + excelName + ".xls");
            } catch (FileNotFoundException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
            try {
                wbCreat.write(fileOut);
                fileOut.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

        }


        return list;
    }


    /**
     * 复制原有sheet的合并单元格到新创建的sheet
     *
     * @param sheetCreat 新创建sheet
     * @param sheet      原有的sheet
     */
    private static void MergerRegion(HSSFSheet sheetCreat, HSSFSheet sheet) {
        int sheetMergerCount = sheet.getNumMergedRegions();
        for (int i = 0; i < sheetMergerCount; i++) {
//            Region mergedRegionAt = sheet.getMergedRegionAt(i);
            CellRangeAddress mergedRegionAt = sheet.getMergedRegion(i);
            sheetCreat.addMergedRegion(mergedRegionAt);
        }

    }

    /**
     * 去除字符串内部空格
     */
    public static String removeInternalBlank(String s) {
        // System.out.println("bb:" + s);
        Pattern p = Pattern.compile("\\s*|\t|\r|\n");
        Matcher m = p.matcher(s);
        String after = m.replaceAll("");
        return after;
        /*char str[] = s.toCharArray();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < str.length; i++) {
            if (str[i] == ' ') {
                sb.append(' ');
            } else {
                break;
            }
        }
        String after = m.replaceAll("");
        return sb.toString() + after;*/
    }


    /**
     * cell格式转string
     *
     * @param cell
     * @return
     * @author zbw
     * 2017-12-18
     */
    public static String parseExcel(Cell cell) {
        if (cell == null) {
            return null;
        }
        String result = new String();

        switch (cell.getCellType()) {
//        case HSSFCell.CELL_TYPE_NUMERIC:// 数字类型
            case NUMERIC:// 数字类型
                if (HSSFDateUtil.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 HSSFCell.CELL_TYPE_STRING:// String类型
            case STRING:// String类型
                result = cell.getRichStringCellValue().toString();
                break;
//        case HSSFCell.CELL_TYPE_BLANK:
            case BLANK:
                result = "";
            default:
                result = "";
                break;
        }
        result = removeInternalBlank(result);
        return result;
    }


    /**
     * 使用poi解析需要导入的Excel
     *
     * @param inputStream
     * @throws Exception
     * @author zbw
     * 2017-12-16
     */
    public static void showExcel(InputStream inputStream) throws Exception {
//			HSSFWorkbook workbook=new HSSFWorkbook(new FileInputStream(new File(filePath)));
        HSSFWorkbook workbook = new HSSFWorkbook(inputStream);
        HSSFSheet sheet = null;
        for (int i = 0; i < workbook.getNumberOfSheets(); i++) {//获取每个Sheet表
            sheet = workbook.getSheetAt(i);
            for (int j = 0; j < sheet.getPhysicalNumberOfRows(); j++) {//获取每行
                HSSFRow row = sheet.getRow(j);
                for (int k = 0; k < row.getPhysicalNumberOfCells(); k++) {//获取每个单元格
//					System.out.print(row.getCell(k)+"\t");
                }
//				System.out.println("---Sheet表"+i+"处理完毕---");
            }
        }
    }

}