- package com.weichai;
-
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.io.InputStream;
- import java.util.Iterator;
-
- import org.apache.poi.ss.usermodel.DateUtil;
- import org.apache.poi.ss.util.CellRangeAddress;
- import org.apache.poi.xssf.usermodel.XSSFCell;
- import org.apache.poi.xssf.usermodel.XSSFCellStyle;
- import org.apache.poi.xssf.usermodel.XSSFRow;
- import org.apache.poi.xssf.usermodel.XSSFSheet;
- import org.apache.poi.xssf.usermodel.XSSFWorkbook;
-
- public class Test {
-
- public static void main(String[] args) throws Exception {
- // TODO Auto-generated method stub
- // 將所有類型的盡調excel文件合併成一個excel文件
- String Path = "D:\\ExcelTest";
- File file = new File(Path);
- File[] tempList = file.listFiles();
- String TmpList [] = new String [2];
- System.out.println("該目錄下對象個數:" + tempList.length);
- for (int i = 0; i < tempList.length; i++) {
- if (tempList[i].isFile()) {
- TmpList[i] = tempList[i].toString();
- System.out.println("文件:"+TmpList[i]+" 待處理");
- }
- }
- XSSFWorkbook newExcelCreat = new XSSFWorkbook();
- for (String fromExcelName : TmpList) { // 遍歷每個源excel文件,TmpList爲源文件的名稱集合
- InputStream in = new FileInputStream(fromExcelName);
- XSSFWorkbook fromExcel = new XSSFWorkbook(in);
- int length = fromExcel.getNumberOfSheets();
- if(length<=1){ //長度爲1時
- XSSFSheet oldSheet = fromExcel.getSheetAt(0);
- XSSFSheet newSheet = newExcelCreat.createSheet(oldSheet.getSheetName());
- copySheet(newExcelCreat, oldSheet, newSheet);
- }else{
- for (int i = 0; i < length; i++) {// 遍歷每個sheet
- XSSFSheet oldSheet = fromExcel.getSheetAt(i);
- XSSFSheet newSheet = newExcelCreat.createSheet(oldSheet.getSheetName());
- copySheet(newExcelCreat, oldSheet, newSheet);
- }
- }
- }
- String allFileName = Path+ "\\New.xlsx"; //定義新生成的xlx表格文件
- FileOutputStream fileOut = new FileOutputStream(allFileName);
- newExcelCreat.write(fileOut);
- fileOut.flush();
- fileOut.close();
- // // 刪除各個源文件
- // for (String fromExcelName : TmpList) {// 遍歷每個源excel文件
- // File Existfile = new File(fromExcelName);
- // if (Existfile.exists()) {
- // Existfile.delete();
- // }
- // }
- System.out.println("運行結束!");
- }
-
- public static void copyCellStyle(XSSFCellStyle fromStyle, XSSFCellStyle toStyle) {
-
- toStyle.cloneStyleFrom(fromStyle);// 此一行代碼搞定
- // 下面統統不用
- /*
- * //對齊方式 toStyle.setAlignment(fromStyle.getAlignment()); //邊框和邊框顏色
- * toStyle.setBorderBottom(fromStyle.getBorderBottom());
- * toStyle.setBorderLeft(fromStyle.getBorderLeft());
- * toStyle.setBorderRight(fromStyle.getBorderRight());
- * toStyle.setBorderTop(fromStyle.getBorderTop());
- * toStyle.setTopBorderColor(fromStyle.getTopBorderColor());
- * toStyle.setBottomBorderColor(fromStyle.getBottomBorderColor());
- * toStyle.setRightBorderColor(fromStyle.getRightBorderColor());
- * toStyle.setLeftBorderColor(fromStyle.getLeftBorderColor()); //背景和前景
- * //toStyle.setFillPattern(fromStyle.getFillPattern());
- * //填充圖案,不起作用,轉爲黑色
- * toStyle.setFillBackgroundColor(fromStyle.getFillBackgroundColor());
- * //不起作用
- * toStyle.setFillForegroundColor(fromStyle.getFillForegroundColor());
- * toStyle.setDataFormat(fromStyle.getDataFormat()); //數據格式
- * //toStyle.setFont(fromStyle.getFont()); //不起作用
- * toStyle.setHidden(fromStyle.getHidden());
- * toStyle.setIndention(fromStyle.getIndention());//首行縮進
- * toStyle.setLocked(fromStyle.getLocked());
- * toStyle.setRotation(fromStyle.getRotation());//旋轉
- * toStyle.setVerticalAlignment(fromStyle.getVerticalAlignment());
- * //垂直對齊 toStyle.setWrapText(fromStyle.getWrapText()); //文本換行
- */
- }
-
- /**
- * 合併單元格
- * @param fromSheet
- * @param toSheet
- */
- public static void mergeSheetAllRegion(XSSFSheet fromSheet, XSSFSheet toSheet) {
- int num = fromSheet.getNumMergedRegions();
- CellRangeAddress cellR = null;
- for (int i = 0; i < num; i++) {
- cellR = fromSheet.getMergedRegion(i);
- toSheet.addMergedRegion(cellR);
- }
- }
-
- /**
- * 複製單元格
- * @param wb
- * @param fromCell
- * @param toCell
- */
- public static void copyCell(XSSFWorkbook wb, XSSFCell fromCell, XSSFCell toCell) {
- XSSFCellStyle newstyle = wb.createCellStyle();
- copyCellStyle(fromCell.getCellStyle(), newstyle);
- // toCell.setEncoding(fromCell.getStringCelllValue());
- // 樣式
- toCell.setCellStyle(newstyle);
- if (fromCell.getCellComment() != null) {
- toCell.setCellComment(fromCell.getCellComment());
- }
- // 不同數據類型處理
- int fromCellType = fromCell.getCellType();
- toCell.setCellType(fromCellType);
- if (fromCellType == XSSFCell.CELL_TYPE_NUMERIC) {
- if (XSSFDateUtil.isCellDateFormatted(fromCell)) {
- toCell.setCellValue(fromCell.getDateCellValue());
- } else {
- toCell.setCellValue(fromCell.getNumericCellValue());
- }
- } else if (fromCellType == XSSFCell.CELL_TYPE_STRING) {
- toCell.setCellValue(fromCell.getRichStringCellValue());
- } else if (fromCellType == XSSFCell.CELL_TYPE_BLANK) {
- // nothing21
- } else if (fromCellType == XSSFCell.CELL_TYPE_BOOLEAN) {
- toCell.setCellValue(fromCell.getBooleanCellValue());
- } else if (fromCellType == XSSFCell.CELL_TYPE_ERROR) {
- toCell.setCellErrorValue(fromCell.getErrorCellValue());
- } else if (fromCellType == XSSFCell.CELL_TYPE_FORMULA) {
- toCell.setCellFormula(fromCell.getCellFormula());
- } else { // nothing29
- }
-
- }
-
- /**
- * 行復制功能
- * @param wb
- * @param oldRow
- * @param toRow
- */
- public static void copyRow(XSSFWorkbook wb, XSSFRow oldRow, XSSFRow toRow) {
- toRow.setHeight(oldRow.getHeight());
- for (Iterator cellIt = oldRow.cellIterator(); cellIt.hasNext();) {
- XSSFCell tmpCell = (XSSFCell) cellIt.next();
- XSSFCell newCell = toRow.createCell(tmpCell.getColumnIndex());
- copyCell(wb, tmpCell, newCell);
- }
- }
-
- /**
- * Sheet複製
- * @param wb
- * @param fromSheet
- * @param toSheet
- */
- public static void copySheet(XSSFWorkbook wb, XSSFSheet fromSheet, XSSFSheet toSheet) {
- mergeSheetAllRegion(fromSheet, toSheet);
- // 設置列寬
- int length = fromSheet.getRow(fromSheet.getFirstRowNum()).getLastCellNum();
- for (int i = 0; i <= length; i++) {
- toSheet.setColumnWidth(i, fromSheet.getColumnWidth(i));
- }
- for (Iterator rowIt = fromSheet.rowIterator(); rowIt.hasNext();) {
- XSSFRow oldRow = (XSSFRow) rowIt.next();
- XSSFRow newRow = toSheet.createRow(oldRow.getRowNum());
- copyRow(wb, oldRow, newRow);
- }
- }
-
- public class XSSFDateUtil extends DateUtil {
-
- }
-
- }
運行截圖:
將Student1和Student2的數據整合到一個Excel表單中
生成的New.xlsx文件如下圖所示: