package com.jadyer.demo; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.openxml4j.exceptions.InvalidFormatException; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; 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.usermodel.WorkbookFactory; /** * POI下载地址为http://poi.apache.org/ * 这里要用到poi-3.9-20121203.jar和poi-ooxml-3.9-20121203.jar * @create Jul 9, 2013 7:54:34 PM * @author 玄玉<http://blog.csdn.net/jadyer> */ public class POIDemo { public static void writeExcel() throws IOException{ //创建一个Excel(or new XSSFWorkbook()) Workbook wb = new HSSFWorkbook(); //创建表格 Sheet sheet = wb.createSheet("测试Sheet_01"); //创建行 Row row = sheet.createRow(0); //设置行高 row.setHeightInPoints(30); //创建样式 CellStyle cs = wb.createCellStyle(); cs.setAlignment(CellStyle.ALIGN_CENTER); cs.setVerticalAlignment(CellStyle.VERTICAL_CENTER); cs.setBorderBottom(CellStyle.BORDER_DOTTED); cs.setBorderLeft(CellStyle.BORDER_THIN); cs.setBorderRight(CellStyle.BORDER_THIN); cs.setBorderTop(CellStyle.BORDER_THIN); //创建单元格 Cell cell = row.createCell(0); //设置单元格样式 cell.setCellStyle(cs); //设置单元格的值 cell.setCellValue("序号"); cell = row.createCell(1); cell.setCellStyle(cs); cell.setCellValue("用户"); row = sheet.createRow(1); cell = row.createCell(0); cell.setCellValue("1"); cell = row.createCell(1); cell.setCellValue("张起灵"); FileOutputStream fos = new FileOutputStream("D:/测试的Excel.xls"); wb.write(fos); if(null != fos){ fos.close(); } } public static void readExcel() throws InvalidFormatException, IOException{ //老版本POI是使用这种方式创建Workbook的,新版本中可以使用WorkbookFactory,它能自动根据文档的类型打开一个Excel //Workbook wb = new HSSFWorkbook(new FileInputStream("D:/5月业务定制对账文件汇总.xls")); Workbook wb = WorkbookFactory.create(new File("D:/5月业务定制对账文件汇总.xls")); //获取Excel中的某一个数据表..也可以通过Sheet名称来获取,即Workbook.getSheet("定制对账文件") Sheet sheet = wb.getSheetAt(0); Row row = null; Cell cell = null; //获取Excel的总行数:Sheet.getLastRowNum()+1(需要+1) for(/*int i=0*/ int i=sheet.getFirstRowNum(); i<sheet.getLastRowNum()+1; i++){ //获取数据表里面的某一行 row = sheet.getRow(i); //获取Excel的总列数:Row.getLastCellNum()(不用+1) for(/*int j=0*/ int j=row.getFirstCellNum(); j<row.getLastCellNum(); j++){ //获取一行中的一个单元格 cell = row.getCell(j); System.out.print(getCellValue(cell) + "----"); } //打印完一行的数据之后,再输入一个空行 System.out.println(); } } /** * 使用for-each循环来读取Excel */ public static void readExcelUseForeach() throws InvalidFormatException, IOException { for(Row row : WorkbookFactory.create(new File("D:/5月业务定制对账文件汇总.xls")).getSheetAt(0)){ for(Cell cell : row){ System.out.print(getCellValue(cell) + "----"); } System.out.println(); } } /** * 获取单元格内的数据值 */ private static String getCellValue(Cell cell){ String str = null; switch (cell.getCellType()) { case Cell.CELL_TYPE_BLANK: str = ""; break; case Cell.CELL_TYPE_BOOLEAN: str = String.valueOf(cell.getBooleanCellValue()); break; case Cell.CELL_TYPE_FORMULA: str = String.valueOf(cell.getCellFormula()); break; case Cell.CELL_TYPE_NUMERIC: str = String.valueOf(cell.getNumericCellValue()); break; case Cell.CELL_TYPE_STRING: str = cell.getStringCellValue(); break; default: str = null; break; } return str; } }
http://blog.csdn.net/kings988/article/details/5865882
/** * 本测试使用的POI版本为3.6 * 其Excel测试案例全部来自POI文档，部分根据情况做了不同程度的修改. * 该测试仅供交流学习使用,代码根据个人理解基本上已做注释 * 测试环境： * OS： Windows 7 Ultimate US_en * IDE: MyEclipse 8.0 GA * JDK: JDK_1.6_20 * MS Excel: Excel 2007 Zh_cn * 作者：WESTDREAM */ package junit.westdream.test; import java.awt.Color; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.Calendar; import java.util.Date; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFClientAnchor; import org.apache.poi.hssf.usermodel.HSSFFooter; import org.apache.poi.hssf.usermodel.HSSFPatriarch; import org.apache.poi.hssf.usermodel.HSSFRichTextString; import org.apache.poi.hssf.usermodel.HSSFShape; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFSimpleShape; import org.apache.poi.hssf.usermodel.HSSFTextbox; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.openxml4j.exceptions.InvalidFormatException; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.ClientAnchor; import org.apache.poi.ss.usermodel.CreationHelper; import org.apache.poi.ss.usermodel.DataFormat; import org.apache.poi.ss.usermodel.DateUtil; import org.apache.poi.ss.usermodel.Drawing; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.IndexedColors; import org.apache.poi.ss.usermodel.Picture; import org.apache.poi.ss.usermodel.PrintSetup; import org.apache.poi.ss.usermodel.RichTextString; 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.usermodel.WorkbookFactory; import org.apache.poi.ss.usermodel.contrib.CellUtil; import org.apache.poi.ss.usermodel.contrib.RegionUtil; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.ss.util.CellReference; import org.apache.poi.util.IOUtils; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.junit.BeforeClass; import org.junit.Test; /** * @author WESTDREAM * @since 2010-8-7 下午10:34:03 */ public class POIExcelTest { /** * @throws java.lang.Exception */ public static final String XLS_WORKBOOK_LOCATION = "D:/workbook.xls"; public static final String XLS_OR_XLSX_DIR = "D:/"; public static final String XLSX_WORKBOOK_LOCATION = "D:/workbook.xlsx"; public static final String IMAGE_LOCATION = "F:/Pictures/Picture/love2.jpg"; @BeforeClass public static void setUpBeforeClass() throws Exception { } @Test public void testWriteExcel() { //## 重复利用 的对象 ##// Workbook wb = null; FileOutputStream fileOut = null; CellStyle cellStyle = null; Cell cell = null; Font font = null; /** * EXCEL早期版本 */ try { //## 创建早期EXCEL的Workbook ##// wb = new HSSFWorkbook(); //## 获取HSSF和XSSF的辅助类 ##// CreationHelper createHelper = wb.getCreationHelper(); //## 创建一个名为“New Sheet”的Sheet ##// Sheet sheet = wb.createSheet("New Sheet"); /** 第一行 --- CELL创建，数据填充及日期格式 **/ Row row1 = sheet.createRow(0); //Cell cell = row.createCell(0); //cell.setCellValue(1); //## 在相应的位置填充数据 ##// row1.createCell(0).setCellValue(1); row1.createCell(1).setCellValue(1.2); row1.createCell(2).setCellValue(createHelper.createRichTextString("CreationHelper---字符串")); row1.createCell(3).setCellValue(true); //## 填充日期类型的数据---未设置Cell Style ##// row1.createCell(4).setCellValue(new Date()); //## 填充日期类型的数据---已设置Cell Style ##// cellStyle = wb.createCellStyle(); cellStyle.setDataFormat(createHelper.createDataFormat().getFormat("yyyy年MM月dd日 hh:mm:ss")); //cellStyle.setDataFormat(createHelper.createDataFormat().getFormat("mm/dd/yyyy h:mm")); cellStyle.setDataFormat(createHelper.createDataFormat().getFormat("yyyy-MM-dd hh:mm:ss")); cell = row1.createCell(5); cell.setCellValue(new Date()); cell.setCellStyle(cellStyle); //## 另一种创建日期的方法 ##// /*cell = row1.createCell(6); cell.setCellValue(Calendar.getInstance()); cell.setCellStyle(cellStyle);*/ /** 第二行 --- 数据类型 **/ Row row2 = sheet.createRow(1); row2.createCell(0).setCellValue(1.1); row2.createCell(1).setCellValue(new Date()); row2.createCell(2).setCellValue(Calendar.getInstance()); row2.createCell(3).setCellValue("字符串"); row2.createCell(4).setCellValue(true); //## 错误的CELL数据格式 ##// row2.createCell(5).setCellType(HSSFCell.CELL_TYPE_ERROR); /** 第三行 --- CELL的各种对齐方式 **/ Row row3 = sheet.createRow(2); row3.setHeightInPoints(30); //## 水平居中,底端对齐 ##// createCell(wb, row3, (short)0, XSSFCellStyle.ALIGN_CENTER, XSSFCellStyle.VERTICAL_BOTTOM); //## 水平居中,垂直居中 ##// createCell(wb, row3, (short)1, XSSFCellStyle.ALIGN_CENTER_SELECTION, XSSFCellStyle.VERTICAL_BOTTOM); //## 填充 ,垂直居中 ##// createCell(wb, row3, (short)2, XSSFCellStyle.ALIGN_FILL, XSSFCellStyle.VERTICAL_CENTER); //## 左对齐,垂直居中 ##// createCell(wb, row3, (short)3, XSSFCellStyle.ALIGN_GENERAL, XSSFCellStyle.VERTICAL_CENTER); //## 左对齐,顶端对齐 ##// createCell(wb, row3, (short)4, XSSFCellStyle.ALIGN_JUSTIFY, XSSFCellStyle.VERTICAL_JUSTIFY); //## 左对齐,顶端对齐 ##// createCell(wb, row3, (short)5, XSSFCellStyle.ALIGN_LEFT, XSSFCellStyle.VERTICAL_TOP); //## 右对齐,顶端对齐 ##// createCell(wb, row3, (short)6, XSSFCellStyle.ALIGN_RIGHT, XSSFCellStyle.VERTICAL_TOP); /** 第四行 --- CELL边框 **/ Row row4 = sheet.createRow(3); cell = row4.createCell(1); cell.setCellValue(4); cellStyle = wb.createCellStyle(); //## 设置底部边框为THIN ##// cellStyle.setBorderBottom(CellStyle.BORDER_THIN); //## 设置底部边框颜色为黑色 ##// cellStyle.setBottomBorderColor(IndexedColors.BLACK.getIndex()); //## 设置左边边框为THIN ##// cellStyle.setBorderLeft(CellStyle.BORDER_THIN); //## 设置左边边框颜色为红色 ##// cellStyle.setLeftBorderColor(IndexedColors.RED.getIndex()); //## 设置右边边框为THIN ##// cellStyle.setBorderRight(CellStyle.BORDER_THIN); //## 设置右边边框颜色为蓝色 ##// cellStyle.setRightBorderColor(IndexedColors.BLUE.getIndex()); //## 设置顶部边框为MEDIUM DASHED ##// cellStyle.setBorderTop(CellStyle.BORDER_MEDIUM_DASHED); //## 设置顶部边框颜色为黑色 ##// cellStyle.setTopBorderColor(IndexedColors.BLACK.getIndex()); cell.setCellStyle(cellStyle); /** 第五行 --- 填充与颜色 **/ Row row5 = sheet.createRow((short) 4); //## Aqua背景 ##// cellStyle = wb.createCellStyle(); cellStyle.setFillBackgroundColor(IndexedColors.AQUA.getIndex()); //## 设置填充模式为BIG SPOTS ##// cellStyle.setFillPattern(CellStyle.BIG_SPOTS); cell = row5.createCell((short) 1); cell.setCellValue("Aqua背景"); cell.setCellStyle(cellStyle); //## 橙色前景色（相对 于CELL背景） ##// cellStyle = wb.createCellStyle(); cellStyle.setFillForegroundColor(IndexedColors.ORANGE.getIndex()); //## 设置填充模式为SOLID FOREGROUND ##// cellStyle.setFillPattern(CellStyle.SOLID_FOREGROUND); cell = row5.createCell((short) 2); cell.setCellValue("橙色前景色"); cell.setCellStyle(cellStyle); /** 第六行 --- 合并单元格 **/ Row row6 = sheet.createRow((short) 5); cell = row6.createCell((short) 4); cell.setCellValue("合并单元格测试"); //## Wrong:EXCEL 2007中打开workbook.xls文件看不到"合并单元格测试"，但单元格已经合并了 ##// /*sheet.addMergedRegion(new CellRangeAddress( 3, //first row (0-based) 5, //last row (0-based) 4, //first column (0-based) 6 //last column (0-based) ));*/ //## 正确合并单元格 注意：与上不同的是first row=last row ##// sheet.addMergedRegion(new CellRangeAddress( 5, //first row (0-based) 5, //last row (0-based) 4, //first column (0-based) 6 //last column (0-based) )); /** 第七行 --- 字体 **/ Row row7 = sheet.createRow(6); //## 创建字体 ##// //注意：POI限制一个Workbook创建的Font对象最多为32767，所以不要为每个CELL创建一个字体，建议重用字体 font = wb.createFont(); //## 设置字体大小为24 ##// font.setFontHeightInPoints((short)24); //## 设置字体样式为华文隶书 ##// font.setFontName("华文隶书"); //## 斜体 ##// font.setItalic(true); //## 添加删除线 ##// font.setStrikeout(true); //## 将字体添加到样式中 ##// cellStyle = wb.createCellStyle(); cellStyle.setFont(font); cell = row7.createCell(1); cell.setCellValue("字体测试"); cell.setCellStyle(cellStyle); /** 第八行 --- 自定义颜色 **/ Row row8 = sheet.createRow(7); cell = row8.createCell(0); cell.setCellValue("自定义颜色测试"); cellStyle = wb.createCellStyle(); //## 设置填充前景色为LIME ##// cellStyle.setFillForegroundColor(HSSFColor.LIME.index); //## 设置填充模式为SOLID FOREGROUND ##// cellStyle.setFillPattern(CellStyle.SOLID_FOREGROUND); font = wb.createFont(); //## 设置字体颜色为红色 ##// font.setColor(HSSFColor.RED.index); cellStyle.setFont(font); cell.setCellStyle(cellStyle); /* cell.setCellValue("自定义颜色测试Palette"); //creating a custom palette for the workbook HSSFPalette palette = ((HSSFWorkbook)wb).getCustomPalette(); //replacing the standard red with freebsd.org red palette.setColorAtIndex(HSSFColor.RED.index, (byte) 153, //RGB red (0-255) (byte) 0, //RGB green (byte) 0 //RGB blue ); //replacing lime with freebsd.org gold palette.setColorAtIndex(HSSFColor.LIME.index, (byte) 255, (byte) 204, (byte) 102);*/ /** 第九行 --- 换行 **/ Row row9 = sheet.createRow(8); cell = row9.createCell(2); cell.setCellValue("使用 /n及Word-wrap创建一个新行"); cellStyle = wb.createCellStyle(); //## 设置WrapText为true ##// cellStyle.setWrapText(true); cell.setCellStyle(cellStyle); //## 设置行的高度以适应新行 ---两行##// row9.setHeightInPoints((2*sheet.getDefaultRowHeightInPoints())); //## 调整列宽 ##// sheet.autoSizeColumn(2); /** 第十行 --- 数据格式 **/ DataFormat format = wb.createDataFormat(); Row row10 = sheet.createRow(9); cell = row10.createCell(0); cell.setCellValue(11111.25); cellStyle = wb.createCellStyle(); //## 一位小数 ##// cellStyle.setDataFormat(format.getFormat("0.0")); cell.setCellStyle(cellStyle); cell = row10.createCell(1); cell.setCellValue(11111.25); cellStyle = wb.createCellStyle(); //## 四位小数，千位逗号隔开 ##// // #,###.0000效果一样 cellStyle.setDataFormat(format.getFormat("#,##0.0000")); cell.setCellStyle(cellStyle); //## 将文件写到硬盘上 ##// fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } /** * EXCEL 2007及以后 */ /* try { wb = new XSSFWorkbook(); wb.createSheet("sheet1"); Cell cell = row.createCell( 0); cell.setCellValue("custom XSSF colors"); CellStyle style1 = wb.createCellStyle(); style1.setFillForegroundColor(new XSSFColor(new java.awt.Color(128, 0, 128))); style1.setFillPattern(CellStyle.SOLID_FOREGROUND); fileOut = new FileOutputStream("d:/workbook.xlsx"); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }*/ } /** * 创建相应格式的CELL */ public void createCell(Workbook wb, Row row, short column, short halign, short valign) { Cell cell = row.createCell(column); //## 给CELL赋值 ##// cell.setCellValue("对齐排列"); CellStyle cellStyle = wb.createCellStyle(); //## 设置水平对齐方式 ##// cellStyle.setAlignment(halign); //## 设置垂直对齐方式 ##// cellStyle.setVerticalAlignment(valign); //## 添加CELL样式 ##// cell.setCellStyle(cellStyle); } /** * 测试POI EXCEL迭代和或CELL中的值 */ @Test public void testExcelIteratorAndCellContents() { try { //## 创建HSSFWorkbook实例 ##// Workbook wb = new HSSFWorkbook(new FileInputStream(XLS_WORKBOOK_LOCATION)); //## 获得第一个SHEET ##// Sheet sheet = wb.getSheetAt(0); // or we could cast into HSSFSheet,that doesn't matter /** 第一种迭代方法 **/ /* //## 迭代ROW ##// for (Iterator<Row> rit = sheet.rowIterator(); rit.hasNext(); ) { Row row = rit.next(); //## 迭代CELL ##// for (Iterator<Cell> cit = row.cellIterator(); cit.hasNext(); ) { Cell cell = cit.next(); System.out.println(cell); } } */ /** 第二种迭代方法 **/ for (Row row : sheet) { for (Cell cell : row) { //## 获取CellReference对象 ##/ CellReference cellRef = new CellReference(row.getRowNum(), cell.getColumnIndex()); System.out.print(cellRef.formatAsString()); System.out.print(" - "); //## 根据CELL值类型进行相应处理 ##/ switch(cell.getCellType()) { case Cell.CELL_TYPE_STRING: System.out.println(cell.getRichStringCellValue().getString()); break; case Cell.CELL_TYPE_NUMERIC: //## yyyy年mm月dd日 hh:mm:ss此种格式日期不能识别 ##// //## mm/dd/yyyy h:mm,yyyy-MM-dd hh:mm:ss可以识别,估计是POI对中文日期支持不怎么好的问题 ##// if(DateUtil.isCellDateFormatted(cell)) { System.out.println(cell.getDateCellValue()); } else { System.out.println(cell.getNumericCellValue()); } break; case Cell.CELL_TYPE_BOOLEAN: System.out.println(cell.getBooleanCellValue()); break; case Cell.CELL_TYPE_FORMULA: System.out.println(cell.getCellFormula()); break; case Cell.CELL_TYPE_ERROR: System.out.println(cell.getErrorCellValue()); break; default: System.out.println(); } } } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 修改文件测试 */ @Test public void testReadingAndRewritingWorkbooks() { InputStream inp = null; try { inp = new FileInputStream(XLS_WORKBOOK_LOCATION); //inp = new FileInputStream("workbook.xlsx"); //## 获得要修改的Workbook ##/ Workbook wb = WorkbookFactory.create(inp); //## 获取要修改的Sheet ##// Sheet sheet = wb.getSheetAt(0); //## 获取要修改的Row ##// Row row = sheet.getRow(1); //## 获取要修改的Cell，如果没有相应位置的Cell那么就创建一个 ##// Cell cell = row.getCell(2); if (cell == null) cell = row.createCell(2); //## 写入修改数据 ##// cell.setCellType(Cell.CELL_TYPE_STRING); cell.setCellValue("修改文件测试"); //## 将文件写到硬盘上 ##// FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (InvalidFormatException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 暂时没看到有什么区别 */ @Test public void testFitSheetToOnePage() { try { Workbook wb = new HSSFWorkbook(); Sheet sheet = wb.createSheet("format sheet"); PrintSetup ps = sheet.getPrintSetup(); sheet.setAutobreaks(true); ps.setFitHeight((short)1); ps.setFitWidth((short)1); // Create various cells and rows for spreadsheet. FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch(Exception e) { e.printStackTrace(); } } /** * 设置打印区域测试 */ @Test public void testSetPrintArea() { /** * 注意：我测试的时候用的是EXCEL 2007打开的，效果不明显，只能控制列且列好像也是不正确的。 * 但是我用EXCEL 2007转换了一下，xls，xlsx的都正确了，目前还不知道是什么问题。 */ try { Workbook wb = new HSSFWorkbook(); Sheet sheet = wb.createSheet("Print Area Sheet"); Row row = sheet.createRow(0); row.createCell(0).setCellValue("第一个单元格"); row.createCell(1).setCellValue("第二个单元格"); row.createCell(2).setCellValue("第三个单元格"); row = sheet.createRow(1); row.createCell(0).setCellValue("第四个单元格"); row.createCell(1).setCellValue("第五个单元格"); row = sheet.createRow(2); row.createCell(0).setCellValue("第六个单元格"); row.createCell(1).setCellValue("第七个单元格"); //## 设置打印区域 A1--C2 ##// //wb.setPrintArea(0, "$A$1:$C$2"); //## 或者使用以下方法设置 ##// wb.setPrintArea( 0, //Sheet页 0, //开始列 2, //结束列 0, //开始行 1 //结束行 ); FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 设置页脚测试 * 用“页面布局”可以看到效果 * 下列代码只适用xls */ @Test public void testSetPageNumbersOnFooter() { try { HSSFWorkbook wb = new HSSFWorkbook(); HSSFSheet sheet = wb.createSheet("Footer Test"); //## 获得页脚 ##/ HSSFFooter footer = sheet.getFooter(); Row row; //## 将 当前页/总页数 写在右边 ##/ footer.setRight( HSSFFooter.page() + "/" + HSSFFooter.numPages() ); for(int i = 0; i < 100; i++) { row = sheet.createRow(i); for(int j = 0; j < 20; j++) { row.createCell(j).setCellValue("A" + i + j); } } FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 测试一些POI提供的比较方便的函数 * 文档中有些以HSSF为前缀的类的方法以过时(e.g: HSSFSheet, HSSFCell etc.)， * 测试的时候我去掉了HSSF前缀，当然也就是现在POI推荐的接口(Sheet,Row,Cell etc.) */ @Test public void testConvenienceFunctions() { try { Workbook wb = new HSSFWorkbook(); Sheet sheet1 = wb.createSheet( "Convenience Functions" ); //## 设置Sheet的显示比例 这里是3/4,也就是 75% ##// sheet1.setZoom(3, 4); //## 合并单元格 ##// Row row = sheet1.createRow((short) 1 ); Row row2 = sheet1.createRow((short) 2 ); Cell cell = row.createCell((short) 1 ); cell.setCellValue( "合并单元格测试" ); //## 创建合并区域 ##// CellRangeAddress region = new CellRangeAddress( 1, (short) 1, 4, (short) 4 ); sheet1.addMergedRegion(region); //## 设置边框及边框颜色 ##// final short borderMediumDashed = CellStyle.BORDER_MEDIUM_DASHED; RegionUtil.setBorderBottom( borderMediumDashed, region, sheet1, wb ); RegionUtil.setBorderTop( borderMediumDashed, region, sheet1, wb ); RegionUtil.setBorderLeft( borderMediumDashed, region, sheet1, wb ); RegionUtil.setBorderRight( borderMediumDashed, region, sheet1, wb ); //## 设置底部边框的颜色 ##// RegionUtil.setBottomBorderColor(HSSFColor.AQUA.index, region, sheet1, wb); //## 设置顶部边框的颜色 ##// RegionUtil.setTopBorderColor(HSSFColor.AQUA.index, region, sheet1, wb); //## 设置左边边框的颜色 ##// RegionUtil.setLeftBorderColor(HSSFColor.AQUA.index, region, sheet1, wb); //## 设置右边边框的颜色 ##// RegionUtil.setRightBorderColor(HSSFColor.AQUA.index, region, sheet1, wb); //## CellUtil的一些用法 ##/ CellStyle style = wb.createCellStyle(); style.setIndention((short)10); CellUtil.createCell(row, 8, "CellUtil测试", style); Cell cell2 = CellUtil.createCell( row2, 8, "CellUtil测试"); //## 设置对齐方式为居中对齐 ##// CellUtil.setAlignment(cell2, wb, CellStyle.ALIGN_CENTER); //## 将Workbook写到硬盘上 ##// FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 测试冻结窗格和拆分 */ @Test public void testSplitAndFreezePanes() { try { Workbook wb = new HSSFWorkbook(); Sheet sheet1 = wb.createSheet("冻结首行Sheet"); Sheet sheet2 = wb.createSheet("冻结首列Sheet"); Sheet sheet3 = wb.createSheet("冻结两行两列 Sheet"); Sheet sheet4 = wb.createSheet("拆分Sheet"); /** 冻结窗格 **/ /* createFreezePane( colSplit, rowSplit, topRow, leftmostColumn ) colSplit 冻结线水平位置 rowSplit 冻结线垂直位置 topRow Top row visible in bottom pane leftmostColumn Left column visible in right pane. */ //## 冻结首行 ##// sheet1.createFreezePane( 0, 1, 0, 1 ); //## 冻结首列 ##// sheet2.createFreezePane( 1, 0, 1, 0 ); //## 冻结两行两列 ##// sheet3.createFreezePane( 2, 2 ); //## 拆分,左下的为面板为激活状态 ##// sheet4.createSplitPane( 2000, 2000, 0, 0, Sheet.PANE_LOWER_LEFT ); FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 测试简单图形 */ @Test public void testDrawingShapes() { try { Workbook wb = new HSSFWorkbook(); Sheet sheet = wb.createSheet("Drawing Shapes"); //## 得到一个HSSFPatriarch对象,有点像画笔但是注意区别 ##// HSSFPatriarch patriarch = (HSSFPatriarch)sheet.createDrawingPatriarch(); /* 构造器： * HSSFClientAnchor(int dx1, int dy1, int dx2, int dy2, short col1, int row1, short col2, int row2) * 描述： * 创建HSSFClientAnchor类的实例，设置该anchor的顶-左和底-右坐标(相当于锚点，也就是图像出现的位置,大小等). * Creates a new client anchor and sets the top-left and bottom-right coordinates of the anchor. * 参数： * dx1 第一个单元格的x坐标 * dy1 第一个单元格的y坐标 * dx2 第二个单元格的x坐标 * dy2 第二个单元格的y坐标 * col1 第一个单元格所在列 * row1 第一个单元格所在行 * col2 第二个单元格所在列 * row2 第二个单元格所在行 */ HSSFClientAnchor anchor = new HSSFClientAnchor( 0, 0, 512, 255, (short) 1, 0, (short) 1, 0 ); //## 通过HSSFClientAnchor类的对象创建HSSFSimpleShape的实例 ##// HSSFSimpleShape shape = patriarch.createSimpleShape(anchor); //## 画个椭圆 ##// shape.setShapeType(HSSFSimpleShape.OBJECT_TYPE_OVAL); //## 这几个是没问题的 ##// //shape.setLineStyleColor(10,10,10); //shape.setFillColor(90,10,200); //shape.setLineStyleColor(HSSFColor.BLUE.index); //设置不了,尚不知原因 //## 设置线条颜色为红色 ##// //shape.setLineStyleColor(Color.BLUE.getRGB()); //搞不清楚为什是反的BLUE:红色 RED:蓝色，是不是开发POI的有点色盲，JUST KIDDING! //## 设置填充颜色为灰色 ##// shape.setFillColor(Color.GRAY.getRGB()); //这个又可以 //## 设置线条宽度为3pt ##// shape.setLineWidth(HSSFShape.LINEWIDTH_ONE_PT * 3); //## 设置线条的样式为点式 ##// shape.setLineStyle(HSSFShape.LINESTYLE_DOTSYS); //## 创建文本框并填充文字 “创建文本框” ##// HSSFTextbox textbox = patriarch.createTextbox( new HSSFClientAnchor(0,0,0,0,(short)1,1,(short)2,2)); RichTextString text = new HSSFRichTextString("创建文本框"); //## 创建字体 ##// Font font = wb.createFont(); //## 斜体 ##// font.setItalic(true); //## 设置字体颜色为蓝色 ##// //font.setColor((short)Color.BLUE.getBlue()); not work font.setColor(HSSFColor.BLUE.index); //## 添加字体 ##// text.applyFont(font); textbox.setString(text); //## 将文件写到硬盘上 ##// FileOutputStream fileOut = new FileOutputStream(XLS_WORKBOOK_LOCATION); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 添加图片到工作薄测试 * 已测试PNG，JPG，GIF */ @Test public void testImages() { try { //## 创建一个新的工作薄 ##// Workbook wb = new XSSFWorkbook(); //or new HSSFWorkbook(); //## 添加图片到该工作薄 ##// InputStream is = new FileInputStream(IMAGE_LOCATION); byte[] bytes = IOUtils.toByteArray(is); int pictureIdx = wb.addPicture(bytes, Workbook.PICTURE_TYPE_JPEG); is.close(); CreationHelper helper = wb.getCreationHelper(); //## 创建一个名为“添加图片”的Sheet ##// Sheet sheet = wb.createSheet("添加图片"); //## 创建一个DrawingPatriarch实例 ##// Drawing drawing = sheet.createDrawingPatriarch(); //## 设置图片的形状，位置等 ##// ClientAnchor anchor = helper.createClientAnchor(); //set top-left corner of the picture, //subsequent call of Picture#resize() will operate relative to it anchor.setCol1(3); anchor.setRow1(2); Picture pict = drawing.createPicture(anchor, pictureIdx); //## 自动设置图片的大小 注意：只支持PNG，JPG，GIF（BMP未测试）##// pict.resize(); //## 保存Workbook ##// String file = "picture.xls"; if(wb instanceof XSSFWorkbook) file += "x"; FileOutputStream fileOut = new FileOutputStream(XLS_OR_XLSX_DIR + file); wb.write(fileOut); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }