Java tutorial
/** * Copyright © 2012-2013 <a href="https://github.com/free lance/infosys">infosys</a> All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); */ package com.heimaide.server.common.utils.excel; import com.google.common.collect.Lists; import com.heimaide.server.common.utils.DictUtils; import com.heimaide.server.common.utils.Encodes; import com.heimaide.server.common.utils.ReflectHelper; import com.heimaide.server.common.utils.excel.annotation.ExcelField; import org.apache.commons.lang3.StringUtils; import org.apache.poi.ss.usermodel.*; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.ss.util.CellRangeAddressList; import org.apache.poi.xssf.streaming.SXSSFSheet; import org.apache.poi.xssf.streaming.SXSSFWorkbook; import org.apache.poi.xssf.usermodel.*; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.servlet.http.HttpServletResponse; import java.io.*; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.*; /** * ExcelXLSX????? @see org.apache.poi.ss.SpreadsheetVersion * * @author free lance * @version 2013-04-21 */ public class ExportExcel { private static Logger log = LoggerFactory.getLogger(ExportExcel.class); /** * */ private SXSSFWorkbook wb; /** * */ private Sheet sheet; /** * ? */ private Map<String, CellStyle> styles; /** * ?? */ private int rownum; /** * Object[]{ ExcelField, Field/Method } */ List<Object[]> annotationList = Lists.newArrayList(); /** * * * @param title * ? * @param cls * annotation.ExportField? */ public ExportExcel(String title, Class<?> cls) { this(title, cls, 1); } /** * * * @param title * ? * @param cls * annotation.ExportField? * @param type * 1:?2? * @param groups * */ public ExportExcel(String title, Class<?> cls, int type, int... groups) { // Get annotation field Field[] fs = cls.getDeclaredFields(); for (Field f : fs) { ExcelField ef = f.getAnnotation(ExcelField.class); if (ef != null && (ef.type() == 0 || ef.type() == type)) { if (groups != null && groups.length > 0) { boolean inGroup = false; for (int g : groups) { if (inGroup) { break; } for (int efg : ef.groups()) { if (g == efg) { inGroup = true; annotationList.add(new Object[] { ef, f }); break; } } } } else { annotationList.add(new Object[] { ef, f }); } } } // Get annotation method Method[] ms = cls.getDeclaredMethods(); for (Method m : ms) { ExcelField ef = m.getAnnotation(ExcelField.class); if (ef != null && (ef.type() == 0 || ef.type() == type)) { if (groups != null && groups.length > 0) { boolean inGroup = false; for (int g : groups) { if (inGroup) { break; } for (int efg : ef.groups()) { if (g == efg) { inGroup = true; annotationList.add(new Object[] { ef, m }); break; } } } } else { annotationList.add(new Object[] { ef, m }); } } } // Field sorting Collections.sort(annotationList, new Comparator<Object[]>() { public int compare(Object[] o1, Object[] o2) { return new Integer(((ExcelField) o1[0]).sort()).compareTo(new Integer(((ExcelField) o2[0]).sort())); }; }); // Initialize List<String> headerList = Lists.newArrayList(); for (Object[] os : annotationList) { String t = ((ExcelField) os[0]).title(); // if (type == 1) { String[] ss = StringUtils.split(t, "**", 2); if (ss.length == 2) { t = ss[0]; } } headerList.add(t); } initialize(title, headerList); } /** * * * @param title * ? * @param headers * */ public ExportExcel(String title, String[] headers) { initialize(title, Lists.newArrayList(headers)); } /** * * * @param title * ? * @param headerList * */ public ExportExcel(String title, List<String> headerList) { initialize(title, headerList); } public ExportExcel(List<String> list, String rootPath, HttpServletResponse response, List<List<Object>> bodyList) throws FileNotFoundException, IOException { exportFile(list, rootPath, response, bodyList); } /** * ? * * @param title * ? * @param headerList * */ /** * */ public static void main(String[] args) throws Throwable { List<String> headerList = Lists.newArrayList(); for (int i = 1; i <= 10; i++) { headerList.add("" + i); } List<String> dataRowList = Lists.newArrayList(); for (int i = 1; i <= headerList.size(); i++) { dataRowList.add("?" + i); } List<List<String>> dataList = Lists.newArrayList(); for (int i = 1; i <= 30; i++) { dataList.add(dataRowList); } ExportExcel ee = new ExportExcel("?-?-?", headerList); for (int i = 0; i < dataList.size(); i++) { Row row = ee.addRow(); for (int j = 0; j < dataList.get(i).size(); j++) { ee.addCell(row, j, dataList.get(i).get(j)); } } // ee.writeFile("target/export.xlsx"); // // ee.dispose(); // // log.debug("Export success."); // XSSFWorkbook wb = new XSSFWorkbook(new FileInputStream("xlsx/order.xlsx")); // //?excel? // //??sheet // XSSFSheet sheet = wb.getSheetAt(0); // //? // XSSFCell cell = sheet.getRow(1).getCell(3); // // XSSFCell cell2 = sheet.getRow(3).getCell(3); // // XSSFCell cell3 = sheet.getRow(1).getCell(0); // System.out.println("cell====="+cell3.getStringCellValue()); // //?? // FileOutputStream out = new FileOutputStream("D:/z.xlsx"); // wb.write(out); // out.close(); } private void exportFile(List<String> list, String rootPath, HttpServletResponse response, List<List<Object>> bodyList) throws FileNotFoundException, IOException { String importFileName = rootPath + "WEB-INF" + File.separator + "xlsx" + File.separator + "order.xlsx"; String tmpDir = rootPath + "tmpDir" + File.separator; XSSFWorkbook wb = new XSSFWorkbook(new FileInputStream(importFileName)); this.styles = createStyles(wb); //?excel? //??sheet XSSFSheet sheet = wb.getSheetAt(0); XSSFCell cell1 = sheet.getRow(1).getCell(0); String cell1str = cell1.getStringCellValue(); //???? cell1str = cell1str.replace("X", list.get(0)); cell1.setCellValue(cell1str); XSSFCell cell2 = sheet.getRow(2).getCell(0); String cell2str = cell2.getStringCellValue(); //?? cell2str = cell2str.replace("X", list.get(1)); //? cell2str = cell2str.replace("Y", list.get(2)); //??? cell2str = cell2str.replace("Z", list.get(3)); cell2.setCellValue(cell2str); XSSFCell cell3 = sheet.getRow(3).getCell(12); String cell3str = cell3.getStringCellValue(); cell3str = cell3str.replace("XX", list.get(4)); cell3.setCellValue(cell3str); XSSFCell cell4 = sheet.getRow(sheet.getLastRowNum() - 1).getCell(0); String cell4str = cell4.getStringCellValue(); cell4str = cell4str.replace("X", list.get(5)); cell4.setCellValue(cell4str); XSSFCell cell5 = sheet.getRow(sheet.getLastRowNum() - 4).getCell(12); XSSFCell cell6 = sheet.getRow(sheet.getLastRowNum() - 4).getCell(13); String str1 = String.valueOf(list.get(6)); String str2 = String.valueOf(list.get(7)); str1 = str1.substring(0, str1.indexOf(".")); str2 = str2.substring(0, str2.indexOf(".")); cell5.setCellValue(str1); cell6.setCellValue(str2); XSSFCell cell7 = sheet.getRow(sheet.getLastRowNum() - 3).getCell(12); XSSFCell cell8 = sheet.getRow(sheet.getLastRowNum() - 3).getCell(13); cell7.setCellValue(Double.parseDouble(list.get(6)) / 10); cell8.setCellValue(Double.parseDouble(list.get(7)) / 10); // int columnNum =sheet.getRow(3).getLastCellNum(); // int column =0; // for(int i=0;i<columnNum;i++) // { // System.out.println("==="+sheet.getRow(3).getCell(i).getStringCellValue()); // column =i; // } int num = 5; for (int i = 0; i < bodyList.size(); i++) { List<Object> strList = bodyList.get(i); sheet.shiftRows(num, bodyList.size() + num, 1, true, false); sheet.createRow(num); for (int j = 0; j < strList.size(); j++) { Row row = sheet.getRow(num); addCell(row, j, strList.get(j)); // Cell cell = row.createCell(j); // cell.setCellValue(strList.get(j)); } num++; } //?? String tmpName = tmpDir + "tmp_hmd.xlsx"; File dirFile = new File(tmpDir); if (!dirFile.exists()) { dirFile.mkdir(); } File tmpFile = new File(tmpName); FileOutputStream fos = new FileOutputStream(tmpFile); wb.write(fos); XSSFWorkbook wb1 = new XSSFWorkbook(new FileInputStream(tmpName)); response.reset(); response.setContentType("application/octet-stream; charset=utf-8"); response.setHeader("Content-Disposition", "attachment; filename=" + Encodes.urlEncode("?" + list.get(0) + "?.xlsx")); wb1.write(response.getOutputStream()); tmpFile.delete(); } private void initialize(String title, List<String> headerList) { this.wb = new SXSSFWorkbook(500); this.sheet = wb.createSheet("Export"); this.styles = createStyles(wb); // Create title if (StringUtils.isNotBlank(title)) { Row titleRow = sheet.createRow(rownum++); titleRow.setHeightInPoints(30); Cell titleCell = titleRow.createCell(0); titleCell.setCellStyle(styles.get("title")); titleCell.setCellValue(title); sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(), headerList.size() - 1)); } // Create header if (headerList == null) { throw new RuntimeException("headerList not null!"); } Row headerRow = sheet.createRow(rownum++); headerRow.setHeightInPoints(16); for (int i = 0; i < headerList.size(); i++) { Cell cell = headerRow.createCell(i); cell.setCellStyle(styles.get("header")); String[] ss = StringUtils.split(headerList.get(i), "**", 2); if (ss.length == 2) { cell.setCellValue(ss[0]); Comment comment = this.sheet.createDrawingPatriarch() .createCellComment(new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6)); comment.setString(new XSSFRichTextString(ss[1])); cell.setCellComment(comment); } else { cell.setCellValue(headerList.get(i)); } sheet.autoSizeColumn(i); } for (int i = 0; i < headerList.size(); i++) { int colWidth = sheet.getColumnWidth(i) * 2; sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth); } log.debug("Initialize success."); } /** * ? * * @param wb * * @return ? */ private Map<String, CellStyle> createStyles(Workbook wb) { Map<String, CellStyle> styles = new HashMap<String, CellStyle>(); CellStyle style = wb.createCellStyle(); style.setAlignment(CellStyle.ALIGN_CENTER); style.setVerticalAlignment(CellStyle.VERTICAL_CENTER); Font titleFont = wb.createFont(); titleFont.setFontName("Arial"); titleFont.setFontHeightInPoints((short) 16); titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD); style.setFont(titleFont); styles.put("title", style); style.setBorderTop(CellStyle.BORDER_THIN); style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderLeft(CellStyle.BORDER_THIN); style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderBottom(CellStyle.BORDER_THIN); style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style = wb.createCellStyle(); style.setAlignment(CellStyle.ALIGN_RIGHT); style.setVerticalAlignment(CellStyle.VERTICAL_CENTER); Font titleFont1 = wb.createFont(); titleFont1.setFontName("Arial"); titleFont1.setFontHeightInPoints((short) 10); titleFont1.setBoldweight(Font.BOLDWEIGHT_BOLD); titleFont1.setColor(Font.COLOR_RED); style.setFont(titleFont1); styles.put("title1", style); style.setBorderRight(CellStyle.BORDER_THIN); style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderTop(CellStyle.BORDER_THIN); style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderBottom(CellStyle.BORDER_THIN); style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style = wb.createCellStyle(); style.setVerticalAlignment(CellStyle.VERTICAL_CENTER); style.setBorderRight(CellStyle.BORDER_THIN); style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderLeft(CellStyle.BORDER_THIN); style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderTop(CellStyle.BORDER_THIN); style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderBottom(CellStyle.BORDER_THIN); style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); Font dataFont = wb.createFont(); dataFont.setFontName("Arial"); dataFont.setFontHeightInPoints((short) 10); style.setFont(dataFont); styles.put("data", style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get("data")); style.setAlignment(CellStyle.ALIGN_LEFT); styles.put("data1", style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get("data")); style.setAlignment(CellStyle.ALIGN_CENTER); styles.put("data2", style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get("data")); style.setAlignment(CellStyle.ALIGN_RIGHT); styles.put("data3", style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get("data")); // style.setWrapText(true); style.setAlignment(CellStyle.ALIGN_CENTER); style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setFillPattern(CellStyle.SOLID_FOREGROUND); Font headerFont = wb.createFont(); headerFont.setFontName("Arial"); headerFont.setFontHeightInPoints((short) 10); headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD); headerFont.setColor(IndexedColors.WHITE.getIndex()); style.setFont(headerFont); styles.put("header", style); return styles; } /** * * * @return */ public Row addRow() { return sheet.createRow(rownum++); } /** * ? * * @param row * * @param column * ? * @param val * * @return ? */ public Cell addCell(Row row, int column, Object val) { return this.addCell(row, column, val, 0, Class.class, new String[] {}); } /** * ? * * @param row * * @param column * ? * @param val * * @param align * ??1?23?? * @return ? */ public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType, String[] constraintValue) { Cell cell = row.createCell(column); CellStyle style = styles.get("data" + (align >= 1 && align <= 3 ? align : "")); try { if (val == null) { cell.setCellValue(""); } else if (val instanceof String) { cell.setCellValue((String) val); } else if (val instanceof Integer) { cell.setCellValue((Integer) val); } else if (val instanceof Long) { cell.setCellValue((Long) val); } else if (val instanceof Double) { cell.setCellValue((Double) val); } else if (val instanceof Float) { cell.setCellValue((Float) val); } else if (val instanceof Date) { DataFormat format = wb.createDataFormat(); style.setDataFormat(format.getFormat("yyyy-MM-dd")); cell.setCellValue((Date) val); } else { if (fieldType != Class.class) { cell.setCellValue((String) fieldType.getMethod("setValue", Object.class).invoke(null, val)); } else { cell.setCellValue((String) Class .forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(), "fieldtype." + val.getClass().getSimpleName() + "Type")) .getMethod("setValue", Object.class).invoke(null, val)); } } if (constraintValue.length > 0) { // ? // ??? CellRangeAddressList regions = new CellRangeAddressList(row.getRowNum(), row.getRowNum(), column, column); // ? XSSFDataValidationConstraint constraint = new XSSFDataValidationConstraint(constraintValue); DataValidationHelper help = sheet.getDataValidationHelper(); // DataValidation validation = help.createValidation(constraint, regions); validation.createErrorBox("", ""); validation.setShowErrorBox(true); // sheet sheet.addValidationData(validation); } } catch (Exception ex) { log.info("Set cell value [" + row.getRowNum() + "," + column + "] error: " + ex.toString()); cell.setCellValue(val.toString()); } cell.setCellStyle(style); return cell; } /** * ?annotation.ExportField? * * @return list ? */ public <E> ExportExcel setDataList(List<E> list) { for (E e : list) { int colunm = 0; Row row = this.addRow(); int num = row.getRowNum(); StringBuilder sb = new StringBuilder(); for (Object[] os : annotationList) { ExcelField ef = (ExcelField) os[0]; Object val = null; // Get entity value try { if (StringUtils.isNotBlank(ef.value())) { val = ReflectHelper.invokeGetter(e, ef.value()); } else { if (os[1] instanceof Field) { val = ReflectHelper.invokeGetter(e, ((Field) os[1]).getName()); } else if (os[1] instanceof Method) { val = ReflectHelper.invokeMethod(e, ((Method) os[1]).getName(), new Class[] {}, new Object[] {}); } } // If is dict, get dict label if (StringUtils.isNotBlank(ef.dictType())) { val = DictUtils.getDictLabel(val == null ? "" : val.toString(), ef.dictType(), ""); } } catch (Exception ex) { // Failure to ignore log.info(ex.toString()); val = ""; } this.addCell(row, colunm++, val, ef.align(), ef.fieldType(), ef.constraintValue()); sb.append(val + ", "); } log.debug("Write success: [" + row.getRowNum() + "] " + sb.toString()); } return this; } /** * ?? * * @param os * ?? */ public ExportExcel write(OutputStream os) throws IOException { wb.write(os); return this; } /** * * * @param fileName * ?? */ public ExportExcel write(HttpServletResponse response, String fileName) throws IOException { response.reset(); response.setContentType("application/octet-stream; charset=utf-8"); response.setHeader("Content-Disposition", "attachment; filename=" + Encodes.urlEncode(fileName)); write(response.getOutputStream()); return this; } /** * * * @param fileName * ?? */ public ExportExcel writeFile(String name) throws FileNotFoundException, IOException { FileOutputStream os = new FileOutputStream(name); this.write(os); return this; } /** * ? */ public ExportExcel dispose() { wb.dispose(); return this; } }