读取和重写 Workbooks
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POIFSFileSystem fs =
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new POIFSFileSystem(new FileInputStream("workbook.xls"));
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HSSFWorkbook wb = new HSSFWorkbook(fs);
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HSSFSheet sheet = wb.getSheetAt(0);
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HSSFRow row = sheet.getRow(2);
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HSSFCell cell = row.getCell((short)3);
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if (cell == null)
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cell = row.createCell((short)3);
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cell.setCellType(HSSFCell.CELL_TYPE_STRING);
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cell.setCellValue("a test");
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// 写入文件
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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在单元格中换行
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet s = wb.createSheet();
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HSSFRow r = null;
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HSSFCell c = null;
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HSSFCellStyle cs = wb.createCellStyle();
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HSSFFont f = wb.createFont();
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HSSFFont f2 = wb.createFont();
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cs = wb.createCellStyle();
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cs.setFont( f2 );
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//开启Word Wrap
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cs.setWrapText( true );
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r = s.createRow( (short) 2 );
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r.setHeight( (short) 0x349 );
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c = r.createCell( (short) 2 );
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c.setCellType( HSSFCell.CELL_TYPE_STRING );
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c.setCellValue( "Use "n with word wrap on to create a new line" );
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c.setCellStyle( cs );
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s.setColumnWidth( (short) 2, (short) ( ( 50 * 8 ) / ( (double) 1 / 20 ) ) );
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FileOutputStream fileOut = new FileOutputStream( "workbook.xls" );
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wb.write( fileOut );
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fileOut.close();
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数据格式化
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("format sheet");
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HSSFCellStyle style;
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HSSFDataFormat format = wb.createDataFormat();
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HSSFRow row;
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HSSFCell cell;
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short rowNum = 0;
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short colNum = 0;
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row = sheet.createRow(rowNum++);
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cell = row.createCell(colNum);
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cell.setCellValue(11111.25);
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style = wb.createCellStyle();
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style.setDataFormat(format.getFormat("0.0"));
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cell.setCellStyle(style);
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row = sheet.createRow(rowNum++);
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cell = row.createCell(colNum);
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cell.setCellValue(11111.25);
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style = wb.createCellStyle();
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style.setDataFormat(format.getFormat("#,##0.0000"));
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cell.setCellStyle(style);
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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使得一个Sheet适合一页
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("format sheet");
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HSSFPrintSetup ps = sheet.getPrintSetup();
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sheet.setAutobreaks(true);
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ps.setFitHeight((short)1);
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ps.setFitWidth((short)1);
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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设置打印区域
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("Sheet1");
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wb.setPrintArea(0, "$A$1:$C$2");
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//为第一个Sheet页设置打印区域
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//也可以这样
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//wb.setPrintArea(0, 0, 1, 0, 0) ,详细参考java doc
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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设置页脚的页数
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("format sheet");
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HSSFFooter footer = sheet.getFooter()
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footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() );
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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使用简便的函数
这些函数保存在contrib并且提供了一些使用特征功能,例如设置合并单元格的边框,不用创建新样式改变样式属性。
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet1 = wb.createSheet( "new sheet" );
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// 合并单元格
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HSSFRow row = sheet1.createRow( (short) 1 );
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HSSFRow row2 = sheet1.createRow( (short) 2 );
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HSSFCell cell = row.createCell( (short) 1 );
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cell.setCellValue( "This is a test of merging" );
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Region region = new Region( 1, (short) 1, 4, (short) 4 );
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sheet1.addMergedRegion( region );
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// 设置边框和颜色.
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final short borderMediumDashed = HSSFCellStyle.BORDER_MEDIUM_DASHED;
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HSSFRegionUtil.setBorderBottom( borderMediumDashed,
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region, sheet1, wb );
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HSSFRegionUtil.setBorderTop( borderMediumDashed,
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region, sheet1, wb );
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HSSFRegionUtil.setBorderLeft( borderMediumDashed,
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region, sheet1, wb );
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HSSFRegionUtil.setBorderRight( borderMediumDashed,
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region, sheet1, wb );
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HSSFRegionUtil.setBottomBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
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HSSFRegionUtil.setTopBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
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HSSFRegionUtil.setLeftBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
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HSSFRegionUtil.setRightBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
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// 展示HSSFCellUtil类的用法
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HSSFCellStyle style = wb.createCellStyle();
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style.setIndention((short)4);
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HSSFCellUtil.createCell(row, 8, "This is the value of the cell", style);
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HSSFCell cell2 = HSSFCellUtil.createCell( row2, 8, "This is the value of the cell");
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HSSFCellUtil.setAlignment(cell2, wb, HSSFCellStyle.ALIGN_CENTER);
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// 写入文件
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FileOutputStream fileOut = new FileOutputStream( "workbook.xls" );
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wb.write( fileOut );
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fileOut.close();
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在Sheet页中上下移动行
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("row sheet");
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//创建不同的行列
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// 将6-11行移动到0-5行
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sheet.shiftRows(5, 10, -5);
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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设置一个Sheet页为被选中的
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("row sheet");
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sheet.setSelected(true);
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// 创建不同的行列。。。
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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设置放大属性
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The zoom is expressed as a fraction. For example to express a zoom of 75% use 3 for the numerator and 4 for the denominator.
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Zoom被明确为一个分数,例如下面的75%使用3作为分子,4作为分母。
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet1 = wb.createSheet("new sheet");
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sheet1.setZoom(3,4); // 75%放大
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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拆分和冻结窗口
这里有你创建的两种窗口:冻结窗口和拆分窗口。
一个冻结窗口是被行和列拆分开的,可以按照如下设置创建冻结窗口。
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sheet1.createFreezePane( 3, 2, 3, 2 );
前两个参数是你要用来拆分的列数和行数。后两个参数是下面窗口的可见象限,其中第三个参数是右边区域可见的左边列数,第四个参数是下面区域可见的首行。
拆分可以将区域分成四个工作区。拆分发生在像素级别而且用户可以通过拖拽到新的位置来判断。
用如下方式拆分窗口:
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sheet2.createSplitPane( 2000, 2000, 0, 0, HSSFSheet.PANE_LOWER_LEFT );
The first parameter is the x position of the split. This is in 1/20th of a point. A point in this case seems to equate to a pixel. The second parameter is the y position of the split. Again in 1/20th of a point.
第一个参数是拆分的x位置。这里单位是一个点的1/20,在这种比例下点看起来是一个像素。第二个参数是拆分的y位置,也是一个点的1/20。第三、四个参数同上。最后一个参数说明当前哪个窗口有焦点,四个选择HSSFSheet.PANE_LOWER_LEFT, PANE_LOWER_RIGHT, PANE_UPPER_RIGHT or PANE_UPPER_LEFT。
反复的行和列(设置打印标题)
在打印输出的时候需要使用HSSFWorkbook类的setRepeatingRowsAndColumns()方法反复的设置行和列。
这个方法包含5个参数,第一个参数是Sheet页的索引(从0开始算),第二、三个参数是重写的列的范围。不使用重写功能的话可以设置-1代替。第四、五个参数是重写的行的范围。不使用重写功能的话可以设置-1代替。
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet1 = wb.createSheet("new sheet");
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HSSFSheet sheet2 = wb.createSheet("second sheet");
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// 第一个Sheet设置从0到2的列
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wb.setRepeatingRowsAndColumns(0,0,2,-1,-1);
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// 第二个Sheet设置行和列
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wb.setRepeatingRowsAndColumns(1,4,5,1,2);
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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页眉和页脚
这是个页眉的例子,但是页脚也同样适用.
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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HSSFHeader header = sheet.getHeader();
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header.setCenter("Center Header");
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header.setLeft("Left Header");
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header.setRight(HSSFHeader.font("Stencil-Normal", "Italic") +
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HSSFHeader.fontSize((short) 16) + "Right w/ Stencil-Normal Italic font and size 16");
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
posted on 2008-11-25 12:01
Vincent-chen 阅读(1177)
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