项目结构：
http://www.cnblogs.com/hongten/gallery/image/112177.html
在项目中我们看到Reference Libraries中的jxl.jar包，它是我们自己外部引入的包。
运行结果：
http://www.cnblogs.com/hongten/gallery/image/112178.html
ExcelHandle.java
1 /** 2 * 3 */ 4 package com.b510; 5 6 import java.io.File; 7 8 import jxl.Workbook; 9 import jxl.format.Border; 10 import jxl.format.BorderLineStyle; 11 import jxl.format.Colour; 12 import jxl.write.Label; 13 import jxl.write.WritableCellFormat; 14 import jxl.write.WritableFont; 15 import jxl.write.WritableSheet; 16 import jxl.write.WritableWorkbook; 17 18 /** 19 * 20 * @author XHW 21 * 22 * @date 2012-2-29 23 * 24 */ 25 public class ExcelHandle { 26 27 /** 28 * @param args 29 */ 30 public static void main(String[] args) { 31 ExcelHandle excelHandle = new ExcelHandle(); 32 excelHandle.writeExcel(); 33 34 } 35 36 /** 37 * 写入Excel 38 * 39 */ 40 public void writeExcel() { 41 try { 42 //写入到那个Excel文件 如：c:\\hello.xls,或者hello.xls(这个是在项目的根目录下) 43 WritableWorkbook wwb = Workbook 44 .createWorkbook(new File("hello.xls")); 45 // 创建Excel工作表 指定名称和位置 46 WritableSheet ws = wwb.createSheet("Test Sheet 1", 0); 47 // 设置表格的列宽度 48 ws.setColumnView(0, 14);//第一列宽14 49 ws.setColumnView(1, 12); 50 ws.setColumnView(2, 25); 51 ws.setColumnView(3, 20); 52 ws.setColumnView(4, 12); 53 ws.setColumnView(5, 9); 54 ws.setColumnView(6, 12);//第7列宽12 55 56 // **************往工作表中添加数据***************** 57 58 //定义字体格式：字体为：微软雅黑，24号子，加粗 59 WritableFont titleFont = new WritableFont(WritableFont 60 .createFont("微软雅黑"), 24, WritableFont.NO_BOLD); 61 WritableFont contentFont = new WritableFont(WritableFont 62 .createFont("楷体 _GB2312"), 12, WritableFont.NO_BOLD); 63 64 WritableCellFormat titleFormat = new WritableCellFormat(titleFont); 65 WritableCellFormat contentFormat = new WritableCellFormat( 66 contentFont); 67 WritableCellFormat contentFormat2 = new WritableCellFormat( 68 contentFont); 69 70 contentFormat.setBorder(Border.ALL, BorderLineStyle.THIN, 71 Colour.BLACK); 72 //设置格式居中对齐 73 titleFormat.setAlignment(jxl.format.Alignment.CENTRE); 74 contentFormat2.setAlignment(jxl.format.Alignment.CENTRE); 75 76 // ***************将定义好的单元格添加到工作表中***************** 77 ws.mergeCells(0, 0, 6, 0);// 合并单元格A-G共7列 78 ws.addCell(new Label(0, 0, "广州XXX大学2009级研究生课程考试成绩册", titleFormat)); 79 ws.addCell(new Label(0, 1, "课程名称", contentFormat2)); 80 ws.mergeCells(1, 1, 6, 1);// 合并单元格B-G共6列 81 ws.addCell(new Label(1, 1, "大学数学", contentFormat2)); 82 ws.addCell(new Label(0, 2, "院所教研室", contentFormat2)); 83 ws.mergeCells(1, 2, 6, 2);// 合并单元格B-G共6列 84 ws.addCell(new Label(0, 3, "填表人", contentFormat2)); 85 ws.addCell(new Label(2, 3, "教研室负责人", contentFormat2)); 86 87 String th[] = { "学号", "姓名", "学院", "平时成绩", "期末成绩", "总成绩", "补考成绩" }; 88 for (int i = 0; i < 7; i++) { 89 ws.addCell(new Label(i, 4, th[i], contentFormat2)); 90 } 91 //这里我们可以从数据库里面查询数据，然后在这里获取数据 92 int xh = 200901; 93 String xm = "王佳佳"; 94 String xy = "XXX信息技术学院"; 95 String space = " "; 96 int cj = 50; 97 String bk = "补 80"; 98 //向Excel中插入数据 99 for (int j = 5; j < 10; j++) {100 ws.addCell(new Label(0, j, "" + xh + j + "", contentFormat));101 ws.addCell(new Label(1, j, xm+j , contentFormat));102 ws.addCell(new Label(2, j, xy , contentFormat));103 ws.addCell(new Label(3, j, space , contentFormat));104 ws.addCell(new Label(4, j, space, contentFormat));105 ws.addCell(new Label(5, j, "" + cj + j + "", contentFormat));106 ws.addCell(new Label(6, j, "" + bk + "", contentFormat));107 }108 // 写入工作表完毕，关闭流109 wwb.write();110 wwb.close();111 } catch (Exception e) {112 e.printStackTrace();113 }114 }115 116 117 118 }
java的poi技术读取和导入Excel：
http://www.cnblogs.com/hongten/archive/2012/02/22/java2poi.html
来源：https://www.cnblogs.com/hongten/archive/2012/02/29/java_jxl.html