事前にExcelファイルを作成・編集し、スタイルを設定する必要があります。
出力データを編集し、Excelの座標に合わせて1対1対応させます。
リストデータの出力とリスト内の列の結合をサポートします。
コードは次のとおりです:
package com.icourt.util;import org.apache.commons.collections4.CollectionUtils;import org.apache.poi.openxml4j.exceptions.InvalidFormatException;import org.apache.poi.ss.usermodel.*;import org.apache.poi.ss.util.CellRangeAddress;import java.io.*;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Map.Entry;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * 描述:poi根据模板导出excel,根据excel坐标赋值,如(B1) */public class ExcelExportUtil {//模板mapprivate Map<String, Workbook> tempWorkbook = new HashMap<String, Workbook>();//模板输入流mapprivate Map<String, InputStream> tempStream = new HashMap<String, InputStream>();/** * 功能:按模板向Excel中相应地方填充数据 */public void writeData(String templateFilePath, Map<String, Object> dataMap, int sheetNo) throws IOException, InvalidFormatException {if (dataMap == null || dataMap.isEmpty()) {return; }//读取模板Workbook wbModule = getTempWorkbook(templateFilePath);//数据填充的sheetSheet wsheet = wbModule.getSheetAt(sheetNo);for (Entry<String, Object> entry : dataMap.entrySet()) { String point = entry.getKey(); Object data = entry.getValue(); TempCell cell = getCell(point, data, wsheet);//指定坐标赋值 setCell(cell, wsheet); }//设置生成excel中公式自动计算wsheet.setForceFormulaRecalculation(true); }/** * 功能:按模板向Excel中列表填充数据.只支持列合并 */public void writeDateList(String templateFilePath, String[] heads, List<Map<Integer, Object>> datalist, int sheetNo) throws IOException, InvalidFormatException {if (heads == null || heads.length <= 0 || CollectionUtils.isEmpty(datalist)) {return; }//读取模板Workbook wbModule = getTempWorkbook(templateFilePath);//数据填充的sheetSheet wsheet = wbModule.getSheetAt(sheetNo);//列表数据模板cellList<TempCell> tempCells = new ArrayList<TempCell>(heads.length);for (String point : heads) { TempCell tempCell = getCell(point, null, wsheet);//取得合并单元格位置 -1:表示不是合并单元格int pos = isMergedRegion(wsheet, tempCell.getRow(), tempCell.getColumn());if (pos > -1) { CellRangeAddress range = wsheet.getMergedRegion(pos); tempCell.setColumnSize(range.getLastColumn() - range.getFirstColumn()); } tempCells.add(tempCell); }//赋值for (int i = 0; i < datalist.size(); i++) {//数据行Map<Integer, Object> dataMap = datalist.get(i);for (int j = 0; j < tempCells.size(); j++) {//列TempCell tempCell = tempCells.get(j); tempCell.setData(dataMap.get(j + 1)); setCell(tempCell, wsheet); tempCell.setRow(tempCell.getRow() + 1); } } }/** * 功能:获取输入工作区 */private Workbook getTempWorkbook(String templateFilePath) throws IOException, InvalidFormatException {if (!tempWorkbook.containsKey(templateFilePath)) { InputStream inputStream = getInputStream(templateFilePath); tempWorkbook.put(templateFilePath, WorkbookFactory.create(inputStream)); }return tempWorkbook.get(templateFilePath); }/** * 功能:获得模板输入流 */private InputStream getInputStream(String templateFilePath) throws FileNotFoundException {if (!tempStream.containsKey(templateFilePath)) { tempStream.put(templateFilePath, new FileInputStream((templateFilePath))); }return tempStream.get(templateFilePath); }/** * 功能:获取单元格数据,样式(根据坐标:B3) */private TempCell getCell(String point, Object data, Sheet sheet) { TempCell tempCell = new TempCell();//得到列 字母String lineStr = ""; String reg = "[A-Z]+"; Pattern p = Pattern.compile(reg); Matcher m = p.matcher(point);while (m.find()) { lineStr = m.group(); }//将列字母转成列号 根据ascii转换char[] ch = lineStr.toCharArray();int column = 0;for (int i = 0; i < ch.length; i++) {char c = ch[i];int post = ch.length - i - 1;int r = (int) Math.pow(10, post); column = column + r * ((int) c - 65); } tempCell.setColumn(column);//得到行号reg = "[1-9]+"; p = Pattern.compile(reg); m = p.matcher(point);while (m.find()) { tempCell.setRow((Integer.parseInt(m.group()) - 1)); }//获取模板指定单元格样式,设置到tempCell(写列表数据的时候用)Row rowIn = sheet.getRow(tempCell.getRow());if (rowIn == null) { rowIn = sheet.createRow(tempCell.getRow()); } Cell cellIn = rowIn.getCell(tempCell.getColumn());if (cellIn == null) { cellIn = rowIn.createCell(tempCell.getColumn()); } tempCell.setCellStyle(cellIn.getCellStyle()); tempCell.setData(data);return tempCell; }/** * 功能:给指定坐标单元格赋值 */private void setCell(TempCell tempCell, Sheet sheet) {if (tempCell.getColumnSize() > -1) { CellRangeAddress rangeAddress = mergeRegion(sheet, tempCell.getRow(), tempCell.getRow(), tempCell.getColumn(), tempCell.getColumn() + tempCell.getColumnSize()); setRegionStyle(tempCell.getCellStyle(), rangeAddress, sheet); } Row rowIn = sheet.getRow(tempCell.getRow());if (rowIn == null) { copyRows(tempCell.getRow() - 1, tempCell.getRow() - 1, tempCell.getRow(), sheet);//复制上一行rowIn = sheet.getRow(tempCell.getRow()); } Cell cellIn = rowIn.getCell(tempCell.getColumn());if (cellIn == null) { cellIn = rowIn.createCell(tempCell.getColumn()); }//根据data类型给cell赋值if (tempCell.getData() instanceof String) { cellIn.setCellValue((String) tempCell.getData()); } else if (tempCell.getData() instanceof Integer) { cellIn.setCellValue((int) tempCell.getData()); } else if (tempCell.getData() instanceof Double) { cellIn.setCellValue((double) tempCell.getData()); } else { cellIn.setCellValue((String) tempCell.getData()); }//样式if (tempCell.getCellStyle() != null && tempCell.getColumnSize() == -1) { cellIn.setCellStyle(tempCell.getCellStyle()); } }/** * 功能:写到输出流并移除资源 */public void writeAndClose(String templateFilePath, OutputStream os) throws IOException, InvalidFormatException {if (getTempWorkbook(templateFilePath) != null) { getTempWorkbook(templateFilePath).write(os); tempWorkbook.remove(templateFilePath); }if (getInputStream(templateFilePath) != null) { getInputStream(templateFilePath).close(); tempStream.remove(templateFilePath); } }/** * 功能:判断指定的单元格是否是合并单元格 */private Integer isMergedRegion(Sheet sheet, int row, int column) {for (int i = 0; i < sheet.getNumMergedRegions(); i++) { CellRangeAddress range = sheet.getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {return i; } } }return -1; }/** * 功能:合并单元格 */private CellRangeAddress mergeRegion(Sheet sheet, int firstRow, int lastRow, int firstCol, int lastCol) { CellRangeAddress rang = new CellRangeAddress(firstRow, lastRow, firstCol, lastCol); sheet.addMergedRegion(rang);return rang; }/** * 功能:设置合并单元格样式 */private void setRegionStyle(CellStyle cs, CellRangeAddress region, Sheet sheet) {for (int i = region.getFirstRow(); i <= region.getLastRow(); i++) { Row row = sheet.getRow(i);if (row == null) row = sheet.createRow(i);for (int j = region.getFirstColumn(); j <= region.getLastColumn(); j++) { Cell cell = row.getCell(j);if (cell == null) { cell = row.createCell(j); cell.setCellValue(""); } cell.setCellStyle(cs); } } }/** * 功能:copy rows */private void copyRows(int startRow, int endRow, int pPosition, Sheet sheet) {int pStartRow = startRow - 1;int pEndRow = endRow - 1;int targetRowFrom;int targetRowTo;int columnCount; CellRangeAddress region = null;int i;int j;if (pStartRow == -1 || pEndRow == -1) {return; }// 拷贝合并的单元格for (i = 0; i < sheet.getNumMergedRegions(); i++) { region = sheet.getMergedRegion(i);if ((region.getFirstRow() >= pStartRow)&& (region.getLastRow() <= pEndRow)) { targetRowFrom = region.getFirstRow() - pStartRow + pPosition; targetRowTo = region.getLastRow() - pStartRow + pPosition; CellRangeAddress newRegion = region.copy(); newRegion.setFirstRow(targetRowFrom); newRegion.setFirstColumn(region.getFirstColumn()); newRegion.setLastRow(targetRowTo); newRegion.setLastColumn(region.getLastColumn()); sheet.addMergedRegion(newRegion); } }// 设置列宽for (i = pStartRow; i <= pEndRow; i++) { Row sourceRow = sheet.getRow(i); columnCount = sourceRow.getLastCellNum();if (sourceRow != null) { Row newRow = sheet.createRow(pPosition - pStartRow + i); newRow.setHeight(sourceRow.getHeight());for (j = 0; j < columnCount; j++) { Cell templateCell = sourceRow.getCell(j);if (templateCell != null) { Cell newCell = newRow.createCell(j); copyCell(templateCell, newCell); } } } } }/** * 功能:copy cell,不copy值 */private void copyCell(Cell srcCell, Cell distCell) { distCell.setCellStyle(srcCell.getCellStyle());if (srcCell.getCellComment() != null) { distCell.setCellComment(srcCell.getCellComment()); }int srcCellType = srcCell.getCellType(); distCell.setCellType(srcCellType); }/** * 描述:临时单元格数据 */class TempCell {private int row;private int column;private CellStyle cellStyle;private Object data;//用于列表合并,表示几列合并private int columnSize = -1;public int getColumn() {return column; }public void setColumn(int column) {this.column = column; }public int getRow() {return row; }public void setRow(int row) {this.row = row; }public CellStyle getCellStyle() {return cellStyle; }public void setCellStyle(CellStyle cellStyle) {this.cellStyle = cellStyle; }public Object getData() {return data; }public void setData(Object data) {this.data = data; }public int getColumnSize() {return columnSize; }public void setColumnSize(int columnSize) {this.columnSize = columnSize; } }public static void main(String[] args) throws FileNotFoundException, IOException, InvalidFormatException { String templateFilePath = ExcelExportUtil.class.getClassLoader().getResource("plugin/ProTiming.xlsx").getPath(); File file = new File("/Users/sql/Downloads/test/data.xlsx"); OutputStream os = new FileOutputStream(file); ExcelExportUtil excel = new ExcelExportUtil(); Map<String, Object> dataMap = new HashMap<String, Object>(); dataMap.put("B1", "03_Alpha_项目工作时间统计表"); dataMap.put("B2", "统计时间:2017/01/01 - 2017/03/31"); excel.writeData(templateFilePath, dataMap, 0); List<Map<Integer, Object>> datalist = new ArrayList<Map<Integer, Object>>(); Map<Integer, Object> data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, "3/10/17"); data.put(2, "18:50"); data.put(3, "19:00"); data.put(4, "李子鹏"); data.put(5, "新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用新增项目键值对接口,供任务计时调用"); data.put(6, "代码开发"); data.put(7, "3.17"); datalist.add(data); data = new HashMap<Integer, Object>(); data.put(1, ""); data.put(2, ""); data.put(3, ""); data.put(4, ""); data.put(5, ""); data.put(6, ""); data.put(7, ""); datalist.add(data); String[] heads = new String[]{"B4", "C4", "D4", "E4", "F4", "G4", "H4"}; excel.writeDateList(templateFilePath, heads, datalist, 0);//写到输出流并移除资源 excel.writeAndClose(templateFilePath, os); os.flush(); os.close(); } }
一般的な考え方:
最も重要なことは良いテンプレートを作成することです
コードは次に従って読み取られますテンプレートの列フォーマットを設定します。 ループデータ行で、行が存在する場合はそれを取得し、特定の行をコピーする必要があるかどうかを確認します。書式を指定せずに行を作成し、行の各列に対応するデータを追加します。各セルの書式とデータを指定します。
以上がApache poiはテンプレートに基づいてExcelをエクスポートしますの詳細内容です。詳細については、PHP 中国語 Web サイトの他の関連記事を参照してください。