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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