本文实例讲述了Jexcel实现按一定规则分割excel文件的方法。分享给大家供大家参考。具体如下：
现有一个excel文档，需要读取它并按照一定的规则，分割之，分割出来的每一段记录需要单独创建一个excel文档并写入其中，一定要保证单元格格式的一致性。
package edu.bjut.zhutong.excelParser; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import jxl.Cell; import jxl.CellType; import jxl.Sheet; import jxl.Workbook; import jxl.format.Alignment; import jxl.format.Border; import jxl.format.BorderLineStyle; import jxl.format.Colour; import jxl.format.VerticalAlignment; import jxl.read.biff.BiffException; import jxl.write.Label; import jxl.write.WritableCellFormat; import jxl.write.WritableFont; import jxl.write.WritableSheet; import jxl.write.WritableWorkbook; import jxl.write.WriteException; import jxl.write.biff.RowsExceededException; public class ExcelParser { public static void main(String[] args) { Workbook wb = null; try { //获得了Workbook对象之后，就可以通过它得到Sheet（工作表）对象了 InputStream is = new FileInputStream("C:/excel/excel.xls"); wb = Workbook.getWorkbook(is); // 获得第一个工作表对象 Sheet sheet = wb.getSheet(0); //获得工作表的行数和列数 int rows = sheet.getRows(); int cols = sheet.getColumns(); System.out.println("一共 " + rows + " 行"); System.out.println("一共 " + cols + " 列"); int counter = 0; //工作表行游标 int fileCounts = 1; //用来标识创建的excel文档数目 while(counter<rows-1) { //得到counter行的所有单元格 Cell[] rowCells = sheet.getRow(counter); Cell cell0 = rowCells[0]; //判断单元格内容的类型 if(cell0.getType() == CellType.LABEL) { System.out.println("正在解析第 " + fileCounts + " 个文件...."); //新建一个excel文档 File file = new File("C:/excel/excel" + fileCounts + ".xls"); WritableWorkbook wwb = Workbook.createWorkbook(file); //设置excel文档的工作表 WritableSheet ws = wwb.createSheet("sheet1", 0); //第一行合并第0到第8列 ws.mergeCells(0, 0, 8, 0); //设置第7,8,9列的列宽 ws.setColumnView(6, 10); ws.setColumnView(7, 45); ws.setColumnView(8, 27); //向新建的表中写入数据，首先第一行先写入标题 for(int k=0; k<rowCells.length; k++) { //创建WritableFont对象用来格式化字体，这里是20号宋体，加粗 WritableFont wf = new WritableFont(WritableFont.createFont("宋体"), 20, WritableFont.BOLD, false); //使用WritableFont创建单元格格式化对象 WritableCellFormat wcf = new WritableCellFormat(wf); //设置水平对齐方式 wcf.setAlignment(Alignment.CENTRE); //设置垂直对齐方式 wcf.setVerticalAlignment(VerticalAlignment.CENTRE); //设置边框和颜色 wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); Cell cell = rowCells[k]; Label label = new Label(k,0,cell.getContents(),wcf); //添加单元格到表中 ws.addCell(label); //设置第一行的行高 ws.setRowView(0, 30*20, false); } //向新建的表中写入数据，第二行写入表头 for(int c=0; c<cols; c++) { String colCon = sheet.getCell(c, 1).getContents(); WritableFont wf = new WritableFont(WritableFont.createFont("宋体"), 12, WritableFont.BOLD, false); WritableCellFormat wcf = new WritableCellFormat(wf); wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); ws.addCell(new Label(c,1,colCon,wcf)); ws.setRowView(1, 18*20, false); } int rowCounts = 1; //用来遍历50 counter++; //将游标移动到下一行 if(counter == 1) //如果游标到了第二行 ，就自动把游标移动到第三行，第二行不需要处理 counter = 2; int rowIndex = 2; //每篇excel文档的游标 rowCells = sheet.getRow(counter); cell0 = rowCells[0]; while(cell0.getType() == CellType.NUMBER && counter<rows-1) { rowCells = sheet.getRow(counter); for(int k=0; k<rowCells.length; k++) { WritableFont wf = new WritableFont(WritableFont.createFont("宋体"), 12, WritableFont.NO_BOLD, false); WritableCellFormat wcf = new WritableCellFormat(wf); wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); Label label = new Label(k,rowIndex,rowCells[k].getContents(),wcf); ws.addCell(label); } //用来处理备注列的边框 { WritableFont wf = new WritableFont(WritableFont.createFont("宋体"), 12, WritableFont.NO_BOLD, false); WritableCellFormat wcf = new WritableCellFormat(wf); wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); Label label = new Label(8,rowIndex,"",wcf); ws.addCell(label); } ws.setRowView(rowIndex, 18*20, false); rowIndex++; counter++; cell0 = sheet.getRow(counter)[0]; } wwb.write(); wwb.close(); fileCounts++; } } System.out.println("程序执行结束...."); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (BiffException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (RowsExceededException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } finally { wb.close(); //关闭Workbook对象 } } }
希望本文所述对大家的java程序设计有所帮助。
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