Java tutorial
/** * Copyright © 2012-2013 <a href="https://github.com/sccl/attech">attech</a> All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); */ package com.sccl.attech.common.utils.excel; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang3.StringUtils; import org.apache.poi.hssf.usermodel.DVConstraint; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFDataValidation; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.Comment; import org.apache.poi.ss.usermodel.DataFormat; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.IndexedColors; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.ss.util.CellRangeAddressList; import org.apache.poi.xssf.streaming.SXSSFWorkbook; import org.apache.poi.xssf.usermodel.XSSFClientAnchor; import org.apache.poi.xssf.usermodel.XSSFRichTextString; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.google.common.collect.Lists; import com.sccl.attech.common.utils.Encodes; import com.sccl.attech.common.utils.Reflections; import com.sccl.attech.common.utils.excel.annotation.ExcelField; import com.sccl.attech.modules.sys.utils.DictUtils; /** * ExcelXLSX????? @see org.apache.poi.ss.SpreadsheetVersion * @author sccl * @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); } /** * ? * @param title ? * @param headerList */ 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."); } /** * demo? * @param title * @param headerList */ private void initializeDemo(String title, List<String> headerList) { // Create header if (headerList == null) { throw new RuntimeException("headerList not null!"); } sheet.setColumnWidth(6, 6000); sheet.setColumnWidth(7, 6000); sheet.setColumnWidth(8, 6000); sheet.setColumnWidth(9, 4000); sheet.setColumnWidth(10, 4000); Row headerRow = sheet.getRow(24); headerRow.setHeightInPoints(16); Cell cell6 = headerRow.createCell(6); cell6.setCellValue("??"); cell6.setCellStyle(this.styles.get("header")); Cell cell7 = headerRow.createCell(7); cell7.setCellValue("??"); cell7.setCellStyle(this.styles.get("header")); Cell cell8 = headerRow.createCell(8); cell8.setCellValue(""); cell8.setCellStyle(this.styles.get("header")); Cell cell9 = headerRow.createCell(9); cell9.setCellValue("?"); cell9.setCellStyle(this.styles.get("header")); Cell cell10 = headerRow.createCell(10); cell10.setCellValue(""); cell10.setCellStyle(this.styles.get("header")); 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 = 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 rows * @return */ public Row getExistRow(int rows) { return sheet.getRow(rows); } /** * ??? */ public void createAddMergedRegion() { sheet.addMergedRegion(new CellRangeAddress(1, 23, 6, 11)); } /** * ? * @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); } /** * ? * @param row * @param column ? * @param val * @return ? */ public Cell addCellStyle(Row row, int column, Object val) { return this.addCellStyle(row, column, val, 0, Class.class); } /** * ? * @param row * @param column ? * @param val * @param align ??1?23?? * @return ? */ public Cell addCellStyle(Row row, int column, Object val, int align, Class<?> fieldType) { Cell cell = row.createCell(column); CellStyle style = styles.get("data" + (align >= 1 && align <= 3 ? align : "")); style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); style.setAlignment(HSSFCellStyle.ALIGN_LEFT); style.setWrapText(true); 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)); } } } catch (Exception ex) { log.info("Set cell value [" + row.getRowNum() + "," + column + "] error: " + ex.toString()); cell.setCellValue(val.toString()); } if (column == 8) { CellRangeAddressList regions = new CellRangeAddressList(25, 25, 8, 8); // ? DVConstraint constraint = DVConstraint .createExplicitListConstraint(new String[] { "2", "3", "" }); // HSSFDataValidation data_validation = new HSSFDataValidation(regions, constraint); // sheet data_validation.createErrorBox("Error", "Error"); data_validation.createPromptBox("", null); sheet.addValidationData(data_validation); } cell.setCellStyle(style); return cell; } /** * ? * @param row * @param column ? * @param val * @param align ??1?23?? * @return ? */ public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType) { 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)); } } } 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(); 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 = Reflections.invokeGetter(e, ef.value()); } else { if (os[1] instanceof Field) { val = Reflections.invokeGetter(e, ((Field) os[1]).getName()); } else if (os[1] instanceof Method) { val = Reflections.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()); 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; } /** * */ public static void main(String[] args) throws Throwable { List<String> headerList = Lists.newArrayList(); headerList.add("??"); headerList.add("??"); headerList.add(""); headerList.add("?"); headerList.add(""); 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 <= 100; i++) { dataList.add(dataRowList); } ExportExcel ee = new ExportExcel(null, 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.createAddMergedRegion(); StringBuilder sb = new StringBuilder(); sb.append("????").append("\r\n"); sb.append( "???64????? ?: ; { } ! @ $ ^ & | , . / ? [ ] ~ * # <+ - = ") .append("\r"); sb.append("??:").append("").append("'").append("%") .append("\\").append("? ") .append("\r"); sb.append( "?? ?60?????? : ; { } ! @ $ ^ & | , . / ? [ ] ~ * # < +- = ") .append("\r"); sb.append( " ????") .append("\r"); sb.append( "??180???1590???15???? :") .append("\r"); sb.append( "79.000000000000000?GPS???????6?") .append("\r"); sb.append( "* ??2000??2000?????") .append("\r"); sb.append("* EXCEL???.xls97-2003").append("\r"); sb.append("* ??????").append("\r"); sb.append( "* ??") .append("\r"); sb.append( "* ????POI??POI??????") .append("\r"); ee.addCellStyle(ee.getExistRow(1), 6, sb.toString()); //demo ee.initializeDemo(null, headerList); ee.addCellStyle(ee.getExistRow(25), 6, "?"); ee.addCellStyle(ee.getExistRow(25), 7, ""); ee.addCellStyle(ee.getExistRow(25), 8, ""); ee.addCellStyle(ee.getExistRow(25), 9, "116.35526644472"); ee.addCellStyle(ee.getExistRow(25), 10, "40.03711432476"); //ee.addCell(ee.getExistRow(26), 6, dataList.get(i).get(j)); ee.writeFile("D:\\export.xlsx"); ee.dispose(); log.debug("Export success."); } }