http://it.chinawin.net/softwaredev/article-13f87.html
http://www.cnblogs.com/raymond19840709/archive/2008/06/26/1230289.html
http://www.iteye.com/blogs/tag/Jxl
Java操作Excel之理解 JXL–读取Excel 说到如何用JXL读取Excel文件，现在来看看如何读取Excel模板然后把动态数据写入到模板以生成特定格式的Excel。同样的思路，先来考虑下会涉及到那些对象，和上篇文章读取相比这里涉及到一个写入的步骤，所以JXL必然会提供一个对象来支持写入，这就是WritableWorkbook。那么如何得到到这个类的实例，查看APIDoc发现Workbook类提供了几个静态的createWorkbook方法返回WritableWorkbook实例，可以看到众多createWorkbook方法主要分为两类：一个参 数和两个参数。简单分析可以得知前者仅仅是用来直接生成Excel文件，后者先读取模板再向模板写入数据然后生成Excel。（还有一个三参数方法加上一个用来设置workbook的参数）现在按照上篇文章中所讲述的流程来看看读取模板并写入需要那些步骤。
第一步：选择模板文件：Workbook wb = Workbook.getWorkbook(new File(realpath));
第二步：通过模板得到一个可写的Workbook：WritableWorkbook wwb = Workbook.createWorkbook(targetFile, wb); ByteArrayOutputStream targetFile = new ByteArrayOutputStream();这样定义这个输出流对象。第二个参数代表了要读取的模板。
第三步：选择模板中名称为StateResult的Sheet：WritableSheet wws = wwb.getSheet("StateResult");如果需要也可以创建SheetWritableSheet wws = wwb.createSheet("Sheet名称",i);
Label A1 = (Label)wws.getWritableCell(0,0);A1.setString("单元格内容") Number A2 = (Number)wws.getWritableCell(0,1);//Number是jxl.write.NumberA2.setValue(3.3);也可以创建新的单元格并且加入到Sheet中Label C1 = new Label(2,0,"单元格内容");wws.addCell(C1); Number C1 = new Number(2,0,3.3);wws.addCell(C1);
在生成Excel报表的时候还会遇到一种需求就是数据的格式问题，我们可能希望数值型单元格以某种格 式显示，而字符串型单元格以另
一种格式显示。这些可以通过WritableFont、NumberFormat、 WritableCellFormat等实现,下例给单元格A1、A2添加了不同的格式。
java代码 WritableFont font= new WritableFont(WritableFont.createFont("宋体"),10,WritableFont.NO_BOLD); NumberFormat format = new NumberFormat("###,##0.00"); //NumberFormat是jxl.write.NumberFormat WritableCellFormat cellFormat1 = new WritableCellFormat(font,format); WritableCellFormat cellFormat2 = new WritableCellFormat(font); cellFormat1.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); //Border是 jxl.format.Border cellFormat2.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); //Border是 jxl.format.Border A2.setCellFormat(cellFormat1); A1.setCellFormat(cellFormat2);
还有不要忘记关闭WritableWorkbook和Workbook以释放资源：wwb.close();wb.close();
最后就可以你需要的方式从输出流targetFile中取得Excel，比如直接生成文件存本地，输 出到客户端浏览器等。
如果还有其他需求，按照这种思路，再参照APIDoc相信可以很容易的解决。
至此，Java操作Excel之理解JXL就写完了。
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在这里说说两种表单格式，第一种只需把数据填充就行了,第二种是循环输出数据。
第一种表单如下：
//选择模板文件： String realpath = "D:/download/test.xls"; try{ Workbook wb = Workbook.getWorkbook(new File(realpath)); //第二步：通过模板得到一个可写的Workbook：第一个参数是一个输出流对象,第二个参数代表了要读取的模板 File targetFile = new File("D:/download/test1.xls"); WritableWorkbook wwb = Workbook.createWorkbook(targetFile, wb); //第三步：选择模板中名称为StateResult的Sheet： WritableSheet wws = wwb.getSheet(4);// 如果需要也可以创建Sheet// WritableSheet wws = wwb.createSheet("Sheet名称",1); //(列，行) Label A1 = (Label)wws.getWritableCell(0,0); A1.setString(" 2009年 7 月****出单中心####公司结算表"); WritableFont font= new WritableFont(WritableFont.createFont("宋体"),18,WritableFont.BOLD); WritableCellFormat cellFormat1 = new WritableCellFormat(font); cellFormat1.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); //Border是jxl.format.Border cellFormat1.setBackground(Colour.BLUE);//设置单元格背景颜色为天蓝色 cellFormat1.setAlignment(jxl.format.Alignment.CENTRE);//设置文本对其方式，左对齐还是右对 齐 A1.setCellFormat(cellFormat1); Label A2 = (Label)wws.getWritableCell(0,1); A2.setString("结算日期：2009年 7月7日 至 2009年 7月31日"); WritableFont font2= new WritableFont(WritableFont.createFont("宋体"),12,WritableFont.BOLD); WritableCellFormat cellFormat2 = new WritableCellFormat(font2); cellFormat2.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); //Border是jxl.format.Border cellFormat2.setBackground(Colour.BLUE);//设置单元格背景颜色为天蓝色 cellFormat2.setAlignment(jxl.format.Alignment.RIGHT);//设置文本对其方式，左对齐还是右对齐 A2.setCellFormat(cellFormat2); /********************************public*****************************/ jxl.write.NumberFormat format = new jxl.write.NumberFormat("#"); jxl.write.WritableCellFormat wcf = new jxl.write.WritableCellFormat(format); WritableFont fonte= new WritableFont(WritableFont.createFont("宋体"),12,WritableFont.NO_BOLD); WritableCellFormat cellFormat= new WritableCellFormat(fonte,format); cellFormat.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); //Border是jxl.format.Border cellFormat.setAlignment(jxl.format.Alignment.CENTRE);//设置文本对其方式，左对齐还是右对齐 /********************************public*****************************/ //份数 jxl.write.Number C4 = new jxl.write.Number(2,3,bean.getPieces(),wcf); wws.addCell(C4); C4.setCellFormat(cellFormat); //保单总印量 jxl.write.Number C5 = new jxl.write.Number(2,4,bean.getAllprintnum(),wcf); wws.addCell(C5); C5.setCellFormat(cellFormat);
//……………..以此类推
wwb.write(); wwb.close(); wb.close(); }catch(Exception e){ e.printStackTrace(); }
第二种表单如下：
循环一个月内 每天的记录，前面是写死的填充数据，现在是循环输出，也很简单，写个FOR循环就OK，关闭WritableWorkbook和Workbook释放资源 要放在FOR循环之外，方法如下：
/*** 月报表导出EXCEL * 循环输出的地方要采用新建单元格并且加入到Sheet的方式来实现 */public void reportMonthJXLWriteExcel(List list, List list2) throws Exception { String realpath = "D:/download/test.xls"; try { Workbook wb = Workbook.getWorkbook(new File(realpath)); // 第二步：通过模板得到一个可写的Workbook：第一个参数是一个输出流对象,第二个参数代表了要读取的模板 File targetFile = new File("D:/download/test1.xls"); WritableWorkbook wwb = Workbook.createWorkbook(targetFile, wb); // 第三步：选择模板中名称为StateResult的Sheet： WritableSheet wws = wwb.getSheet(3); // (列，行) Label A1 = (Label) wws.getWritableCell(0, 0); A1.setString("2007年07月16日湖南出单中心长沙分公司生产月明细表"); WritableFont font = new WritableFont(WritableFont.createFont("宋体"), 18, WritableFont.BOLD); WritableCellFormat cellFormat1 = new WritableCellFormat(font); cellFormat1.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); // Border是jxl.format.Border cellFormat1.setBackground(Colour.BLUE);// 设置单元格背景颜色为天蓝色 cellFormat1.setAlignment(jxl.format.Alignment.CENTRE);// 设置文本对其方式，左对齐还是右对齐 A1.setCellFormat(cellFormat1);
/** ******************************public**************************** */ jxl.write.NumberFormat format = new jxl.write.NumberFormat("#"); jxl.write.WritableCellFormat wcf = new jxl.write.WritableCellFormat( format); WritableFont fonte = new WritableFont( WritableFont.createFont("宋体"), 10, WritableFont.NO_BOLD); WritableCellFormat cellFormat = new WritableCellFormat(fonte, format); cellFormat.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); // Border是jxl.format.Border cellFormat.setAlignment(jxl.format.Alignment.CENTRE);// 设置文本对其方式，左对齐还是右对齐 for (int c = 0; c < 18; c++) { wws.setColumnView(c, 8);// 给每列设置宽度 }
/** ******************************public**************************** */
int i = 0, j = 0;// i=描述单元格，j=获取JAVA BEAN对象 for (i = 3, j = 0; i < list.size() + 3 && j < list.size(); i++, j++) { ReportDayBean bean = (ReportDayBean) list.get(j);
Label A4 = new Label(0, i, bean.getBusitime()); wws.addCell(A4); WritableFont font2 = new WritableFont(WritableFont .createFont("宋体"), 10, WritableFont.NO_BOLD); WritableCellFormat cellFormat2 = new WritableCellFormat(font2); cellFormat2.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); // Border是jxl.format.Border cellFormat2.setAlignment(jxl.format.Alignment.CENTRE);// 设置文本对其方式，左对齐还是右对齐 A4.setCellFormat(cellFormat2);
// 份数 jxl.write.Number B4 = new jxl.write.Number(1, i, bean .getPieces(), wcf); wws.addCell(B4); B4.setCellFormat(cellFormat);
// 总印量 jxl.write.Number C4 = new jxl.write.Number(2, i, bean .getAllprintnum(), wcf); wws.addCell(C4); C4.setCellFormat(cellFormat);
// 超印量 jxl.write.Number D4 = new jxl.write.Number(3, i, bean .getOverprintnum(), wcf); wws.addCell(D4); D4.setCellFormat(cellFormat);
// 清单印量 jxl.write.Number E4 = new jxl.write.Number(4, i, bean .getListprintnum(), wcf); wws.addCell(E4); E4.setCellFormat(cellFormat); // A4纸 jxl.write.Number F4 = new jxl.write.Number(5, i, bean .getPaper(), wcf); wws.addCell(F4); F4.setCellFormat(cellFormat);
// 份数 jxl.write.Number G4 = new jxl.write.Number(6, i, bean .getZ_pieces(), wcf); wws.addCell(G4); G4.setCellFormat(cellFormat); jxl.write.Number H4 = new jxl.write.Number(7, i, bean .getZ_printnum(), wcf); wws.addCell(H4); H4.setCellFormat(cellFormat); jxl.write.Number I4 = new jxl.write.Number(8, i, bean .getZ_paper(), wcf); wws.addCell(I4); I4.setCellFormat(cellFormat); jxl.write.Number J4 = new jxl.write.Number(9, i, bean .getLocal(), wcf); wws.addCell(J4); J4.setCellFormat(cellFormat); jxl.write.Number K4 = new jxl.write.Number(10, i, bean .getForeign(), wcf); wws.addCell(K4); K4.setCellFormat(cellFormat); jxl.write.Number L4 = new jxl.write.Number(11, i, bean .getPrintnum(), wcf); wws.addCell(L4); L4.setCellFormat(cellFormat); jxl.write.Number M4 = new jxl.write.Number(12, i, bean .getPrepaper(), wcf); wws.addCell(M4); M4.setCellFormat(cellFormat); jxl.write.Number N4 = new jxl.write.Number(13, i, bean .getBlankpaper(), wcf); wws.addCell(N4); N4.setCellFormat(cellFormat); jxl.write.Number O4 = new jxl.write.Number(14, i, bean .getEnvelope(), wcf); wws.addCell(O4); O4.setCellFormat(cellFormat); jxl.write.Number P4 = new jxl.write.Number(15, i, bean .getQ_pieces(), wcf); wws.addCell(P4); P4.setCellFormat(cellFormat); jxl.write.Number Q4 = new jxl.write.Number(16, i, bean .getQ_printnum(), wcf); wws.addCell(Q4); Q4.setCellFormat(cellFormat); // A4纸 jxl.write.Number R4 = new jxl.write.Number(17, i, bean .getQ_paper(), wcf); wws.addCell(R4); R4.setCellFormat(cellFormat);
}
System.out.println("iiiiiiiiiiii=" + i); ReportDayBean bean = (ReportDayBean) list2.get(0);
Label A4 = new Label(0, i, "小计"); wws.addCell(A4); WritableFont font2 = new WritableFont( WritableFont.createFont("宋体"), 12, WritableFont.NO_BOLD); WritableCellFormat cellFormat2 = new WritableCellFormat(font2); cellFormat2.setBorder(Border.ALL, jxl.format.BorderLineStyle.THIN); // Border是jxl.format.Border cellFormat2.setAlignment(jxl.format.Alignment.CENTRE);// 设置文本对其方式，左对齐还是右对齐 A4.setCellFormat(cellFormat2);
// 份数 jxl.write.Number B4 = new jxl.write.Number(1, i, bean.getPieces(), wcf); wws.addCell(B4); B4.setCellFormat(cellFormat);
// 总印量 jxl.write.Number C4 = new jxl.write.Number(2, i, bean .getAllprintnum(), wcf); wws.addCell(C4); C4.setCellFormat(cellFormat);
// 超印量 jxl.write.Number D4 = new jxl.write.Number(3, i, bean .getOverprintnum(), wcf); wws.addCell(D4); D4.setCellFormat(cellFormat);
// 清单印量 jxl.write.Number E4 = new jxl.write.Number(4, i, bean .getListprintnum(), wcf); wws.addCell(E4); E4.setCellFormat(cellFormat); // A4纸 jxl.write.Number F4 = new jxl.write.Number(5, i, bean.getPaper(), wcf); wws.addCell(F4); F4.setCellFormat(cellFormat);
// 份数 jxl.write.Number G4 = new jxl.write.Number(6, i, bean.getZ_pieces(), wcf); wws.addCell(G4); G4.setCellFormat(cellFormat); jxl.write.Number H4 = new jxl.write.Number(7, i, bean .getZ_printnum(), wcf); wws.addCell(H4); H4.setCellFormat(cellFormat); jxl.write.Number I4 = new jxl.write.Number(8, i, bean.getZ_paper(), wcf); wws.addCell(I4); I4.setCellFormat(cellFormat); jxl.write.Number J4 = new jxl.write.Number(9, i, bean.getLocal(), wcf); wws.addCell(J4); J4.setCellFormat(cellFormat); jxl.write.Number K4 = new jxl.write.Number(10, i, bean.getForeign(), wcf); wws.addCell(K4); K4.setCellFormat(cellFormat); jxl.write.Number L4 = new jxl.write.Number(11, i, bean .getPrintnum(), wcf); wws.addCell(L4); L4.setCellFormat(cellFormat); jxl.write.Number M4 = new jxl.write.Number(12, i, bean .getPrepaper(), wcf); wws.addCell(M4); M4.setCellFormat(cellFormat); jxl.write.Number N4 = new jxl.write.Number(13, i, bean .getBlankpaper(), wcf); wws.addCell(N4); N4.setCellFormat(cellFormat); jxl.write.Number O4 = new jxl.write.Number(14, i, bean .getEnvelope(), wcf); wws.addCell(O4); O4.setCellFormat(cellFormat); jxl.write.Number P4 = new jxl.write.Number(15, i, bean .getQ_pieces(), wcf); wws.addCell(P4); P4.setCellFormat(cellFormat); jxl.write.Number Q4 = new jxl.write.Number(16, i, bean .getQ_printnum(), wcf); wws.addCell(Q4); Q4.setCellFormat(cellFormat); // A4纸 jxl.write.Number R4 = new jxl.write.Number(17, i, bean.getQ_paper(), wcf); wws.addCell(R4); R4.setCellFormat(cellFormat);
int k = i + 2;// 这里是空一行再写入制表人，审核人…… wws.mergeCells(4, k, 17, k); Label E14 = new Label( 4, k, wws.addCell(E14); WritableCellFormat cellFormatinfo = new WritableCellFormat(font2); cellFormatinfo.setBorder(Border.ALL, jxl.format.BorderLineStyle.NONE); // Border是jxl.format.Border cellFormatinfo.setAlignment(jxl.format.Alignment.LEFT);// 设置文本对其方式，左对齐还是右对齐 E14.setCellFormat(cellFormatinfo);
wwb.write(); wwb.close(); wb.close(); } catch (Exception e) { }
闽南的花市，一开始是来自漳州百花村，
