标签:last 打印 java display back select stat hid 单元格边框
一、POI 表格框架
1.POI : POI提供API给Java程序对Microsoft Office格式档案读和写的功能
2.HSSF:Horrible SpreadSheet Format,为读取操作提供了两类API:usermodel和eventusermodel,即“用户模型”和“事件-用户模型”
3.POI 文档结构类
HSSFWorkbook 文档对象,HSSFSheet 页,HSSFRow 行,HSSFCell 单元格,HSSFFont 字体, HSSFName 名称,HSSFDataFormat 日期格式
HSSFHeader 表头,HSSFFooter 表尾,HSSFCellStyle 单元格样式,HSSFDateUtil 日期,HSSFPrintSetup 打印, HSSFErrorConstants 错误信息表
二、POI excel操作方法
1.获取excel 表格对象
读取表格:POIFSFileSystem fs=newPOIFSFileSystem(new FileInputStream("d:/test.xls"));
Excel工作簿对象:HSSFWorkbook wb = new HSSFWorkbook(fs);
Excel工作表对象:HSSFSheet sheet = wb.getSheetAt(0);
Excel工作表的行:HSSFRow row = sheet.getRow(i);
Excel工作表指定行的单元格:HSSFCell cell = row.getCell((short) j);
单元格样式:cellStyle = cell.getCellStyle()
2.建立excel表格对象
创建Excel工作簿对象:HSSFWorkbook wb = new HSSFWorkbook();
创建Excel工作表对象:HSSFSheet sheet = wb.createSheet("new sheet");
创建Excel工作表的行:HSSFRow row = sheet.createRow((short)0);
创建单元格样式 cellStyle = wb.createCellStyle();
创建Excel工作表指定行的单元格 : row.createCell((short)0).setCellStyle(cellStyle);
设置Excel工作表的值:row.createCell((short)0).setCellValue(1)
3.设置sheet名称和单元格内容
wb.setSheetName(1, "第一张工作表",HSSFCell.ENCODING_UTF_16);
cell.setEncoding((short) 1);
cell.setCellValue("单元格内容");
4.获取shee数目:wb.getNumberOfSheets()
5.根据index获取sheet对象:HSSFSheet sheet = wb.getSheetAt(0)
6.获取有效行数:int rowcount = sheet.getLastRowNum()
7.取得一行中有效单元格数:row.getLastCellNum()
8.单元格值类型读写
设置单元格为STRING类型 :cell.setCellType(HSSFCell.CELL_TYPE_STRING)
读取为数值类型的单元格内容 :cell.getNumericCellValue()
9.设置列宽、行高
sheet.setColumnWidth((short)column,(short)width)
row.setHeight((short)height)
10.添加区域、合并单元格
合并从第rowFrom行columnFrom列: Region region = new Region((short)rowFrom,(short)columnFrom,(short)rowTo ,(short)columnTo)
到rowTo行columnTo的区域 :sheet.addMergedRegion(region)
得到所有区域:sheet.getNumMergedRegions()
11.保存excel文件
FileOutputStream fileOut = new FileOutputStream(path);
wb.write(fileOut)
12.根据单元格不同属性返回字符串数值
public String getCellStringValue(HSSFCell cell) { String cellValue = ""; switch (cell.getCellType()) { case HSSFCell.CELL_TYPE_STRING://字符串类型 cellValue = cell.getStringCellValue(); if(cellValue.trim().equals("")||cellValue.trim().length()<=0) cellValue=" "; break; case HSSFCell.CELL_TYPE_NUMERIC: //数值类型 cellValue = String.valueOf(cell.getNumericCellValue()); break; case HSSFCell.CELL_TYPE_FORMULA: //公式 cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC); cellValue = String.valueOf(cell.getNumericCellValue()); break; case HSSFCell.CELL_TYPE_BLANK: cellValue=" "; break; case HSSFCell.CELL_TYPE_BOOLEAN: break; case HSSFCell.CELL_TYPE_ERROR: break; default: break; } return cellValue; }
13.常用单元格边框格式
HSSFCellStyle style = wb.createCellStyle();
下边框:style.setBorderBottom(HSSFCellStyle.BORDER_DOTTED);
左边框:style.setBorderLeft(HSSFCellStyle.BORDER_DOTTED);
右边框 :style.setBorderRight(HSSFCellStyle.BORDER_THIN);
上边框: style.setBorderTop(HSSFCellStyle.BORDER_THIN)
14.设置字体和内容位置
HSSFFont f = wb.createFont();
字号:f.setFontHeightInPoints((short) 11);
加粗:f.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
style.setFont(f);
左右居中:style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
上下居中:style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
单元格内容的旋转的角度:style.setRotation(short rotation);
HSSFDataFormat df = wb.createDataFormat();
设置单元格数据格式: style1.setDataFormat(df.getFormat("0.00%"));
给单元格设公式:cell.setCellFormula(string);
单元格内容的旋转的角度:style.setRotation(short rotation)
15.插入图片
//先把读进来的图片放到一个ByteArrayOutputStream中,以便产生ByteArray ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream(); BufferedImage bufferImg = ImageIO.read(new File("ok.jpg")); ImageIO.write(bufferImg,"jpg",byteArrayOut); //读进一个excel模版 FileInputStream fos = new FileInputStream(filePathName+"/stencil.xlt"); fs = new POIFSFileSystem(fos); //创建一个工作薄 HSSFWorkbook wb = new HSSFWorkbook(fs); HSSFSheet sheet = wb.getSheetAt(0); HSSFPatriarch patriarch = sheet.createDrawingPatriarch(); HSSFClientAnchor anchor = new HSSFClientAnchor(0,0,1023,255,(short) 0,0,(short)10,10); patriarch.createPicture(anchor , wb.addPicture(byteArrayOut.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));
16.调整工作表位置
HSSFWorkbook wb = new HSSFWorkbook(); HSSFSheet sheet = wb.createSheet("format sheet"); HSSFPrintSetup ps = sheet.getPrintSetup(); sheet.setAutobreaks(true); ps.setFitHeight((short)1); ps.setFitWidth((short)1);
17.设置打印区域
HSSFSheet sheet = wb.createSheet("Sheet1");
wb.setPrintArea(0, "$A$1:$C$2");
18.标注脚注
HSSFSheet sheet = wb.createSheet("format sheet");
HSSFFooter footer = sheet.getFooter()
footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() )
19.在工作单中清空行数据,调整行位置
HSSFWorkbook wb = new HSSFWorkbook(); HSSFSheet sheet = wb.createSheet("row sheet"); // Create various cells and rows for spreadsheet. // Shift rows 6 - 11 on the spreadsheet to the top (rows 0 - 5) sheet.shiftRows(5, 10, -5);
20.选中指定的工作表
HSSFSheet sheet = wb.createSheet("row sheet");
sheet.setSelected(true);
21.工作表的放大缩小
HSSFSheet sheet1 = wb.createSheet("new sheet"); sheet1.setZoom(1,2); // 50 percent magnification
22.头注 脚注
HSSFSheet sheet = wb.createSheet("new sheet"); HSSFHeader header = sheet.getHeader(); header.setCenter("Center Header"); header.setLeft("Left Header"); header.setRight(HSSFHeader.font("Stencil-Normal", "Italic") + HSSFHeader.fontSize((short) 16) + "Right w/ Stencil-Normal Italic font and size 16");
23.自定义颜色
HSSFCellStyle style = wb.createCellStyle(); style.setFillForegroundColor(HSSFColor.LIME.index); style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); HSSFFont font = wb.createFont(); font.setColor(HSSFColor.RED.index); style.setFont(font); cell.setCellStyle(style);
24.填充和颜色设置
HSSFCellStyle style = wb.createCellStyle(); style.setFillBackgroundColor(HSSFColor.AQUA.index); style.setFillPattern(HSSFCellStyle.BIG_SPOTS); HSSFCell cell = row.createCell((short) 1); cell.setCellValue("X"); style = wb.createCellStyle(); style.setFillForegroundColor(HSSFColor.ORANGE.index); style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cell.setCellStyle(style);
25.强行刷新单元格格式
HSSFFormulaEvaluator eval=new HSSFFormulaEvaluator((HSSFWorkbook) wb); private static void updateFormula(Workbook wb,Sheet s,int row){ Row r=s.getRow(row); Cell c=null; FormulaEcaluator eval=null; if(wb instanceof HSSFWorkbook) eval=new HSSFFormulaEvaluator((HSSFWorkbook) wb); else if(wb instanceof XSSFWorkbook) eval=new XSSFFormulaEvaluator((XSSFWorkbook) wb); for(int i=r.getFirstCellNum();i c=r.getCell(i); if(c.getCellType()==Cell.CELL_TYPE_FORMULA) eval.evaluateFormulaCell(c); } }
注意:FormulaEvaluator提供了evaluateFormulaCell(Cell cell)方法,计算公式保存结果,但不改变公式。而evaluateInCell(Cell cell) 方法是计算公式,并将原公式替换为计算结果,也就是说该单元格的类型不在是Cell.CELL_TYPE_FORMULA而是Cell.CELL_TYPE_NUMBERIC。
HSSFFormulaEvaluator提供了静态方法evaluateAllFormulaCells(HSSFWorkbook wb) ,计算一个Excel文件的所有公式,用起来很方便
三、POI 方法总结
1.设置不显示excel网格线
sheet.setDisplayGridlines(false);其中sheet是Sheet对象
2.设置excel单元格中的内容换行
cellStyle.setWrapText(true);
其中cellStyle是WorkBook创建的CellStyle对象,然后将cellStyle设置到要换行的Cell对象,最后在要换行的对象(一般为字符串)加入"/r/n"。如 topTile.append("/r/n" +"cellContent");
3.单元格的合并
sheet.addMergedRegion(new CellRangeAddress(0, 4, 0, 2));本示例为合并4行2列
4.设置页眉和页脚的页数
HSSFHeader header = sheet.getHeader(); header.setCenter("Center Header"); header.setLeft("Left Header"); header.setRight(HSSFHeader.font("Stencil-Normal", "Italic") + HSSFHeader.fontSize((short) 16) + "Right w/ Stencil-Normal Italic font and size 16"); HSSFFooter footer = (HSSFFooter )sheet.getFooter() footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() );
5.使得一个Sheet适合一页
sheet.setAutobreaks(true);
6.设置放大属性(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)
sheet.setZoom(3,4);
7.设置打印
HSSFPrintSetup print = (HSSFPrintSetup) sheet.getPrintSetup(); print.setLandscape(true);//设置横向打印 print.setScale((short) 70);//设置打印缩放70% print.setPaperSize(HSSFPrintSetup.A4_PAPERSIZE);//设置为A4纸张 print.setLeftToRight(true);//設置打印顺序先行后列,默认为先列行 print.setFitHeight((short) 10);设置缩放调整为10页高 print.setFitWidth((short) 10);设置缩放调整为宽高 sheet.setAutobreaks(false); if (i != 0 && i % 30 == 0) sheet.setRowBreak(i);//設置每30行分頁打印
8.反复的行和列(设置打印标题)
HSSFWorkbook wb = new HSSFWorkbook();
wb.setRepeatingRowsAndColumns(0, 0, 12, 1, 6);//设置1到12列,行1到6每一页重复打印
9.调整单元格宽度
sheet.setAutobreaks(true);
sheet.setColumnWidth((short)i,colsWidth[i]); //设定单元格长度
sheet.autoSizeColumn((short) i);//自动根据长度调整单元格长度
转至:https://www.cnblogs.com/mh-study/p/9754692.html
标签:last 打印 java display back select stat hid 单元格边框
原文地址:https://www.cnblogs.com/dxjx/p/12557265.html