java导出EXCEL表格小demo
我自己在网上找的例子，地址：http://blog.csdn.net/u014621859/article/details/54944059
自己的代码：
1 package com.ym.admin.controller; 2 3 import java.io.FileOutputStream; 4 import java.text.SimpleDateFormat; 5 import java.util.ArrayList; 6 import java.util.Date; 7 import java.util.List; 8 9 import org.apache.poi.hssf.usermodel.HSSFCell; 10 import org.apache.poi.hssf.usermodel.HSSFCellStyle; 11 import org.apache.poi.hssf.usermodel.HSSFRow; 12 import org.apache.poi.hssf.usermodel.HSSFSheet; 13 import org.apache.poi.hssf.usermodel.HSSFWorkbook; 14 15 /** 16 * @author Anear: 17 * @version 创建时间：2017年12月23日 下午3:52:54 18 */ 19 public class TestExcelMain { 20 21 /** 22 * @功能：手工构建一个简单格式的Excel 23 */ 24 private static List<Member> getMember() throws Exception 25 { 26 List list = new ArrayList<Member>(); 27 SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd"); 28 29 Member user1 = new Member(1, "anpei", 16,df.parse("1994-08-19")); 30 Member user2 = new Member(2, "熊二", 23, df.parse("1994-08-19")); 31 Member user3 = new Member(3, "熊熊", 24, df.parse("1983-11-22")); 32 list.add(user1); 33 list.add(user2); 34 list.add(user3); 35 36 return list; 37 } 38 39 public static void main(String[] args) throws Exception 40 { 41 // 第一步，创建一个webbook，对应一个Excel文件 42 HSSFWorkbook wb = new HSSFWorkbook(); 43 // 第二步，在webbook中添加一个sheet,对应Excel文件中的sheet 44 HSSFSheet sheet = wb.createSheet("学生表一"); 45 // 第三步，在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short 46 HSSFRow row = sheet.createRow((int) 0); 47 // 第四步，创建单元格，并设置值表头 设置表头居中 48 HSSFCellStyle style = wb.createCellStyle(); 49 style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式 50 51 HSSFCell cell = row.createCell((short) 0); 52 cell.setCellValue("学号"); 53 cell.setCellStyle(style); 54 cell = row.createCell((short) 1); 55 cell.setCellValue("姓名"); 56 cell.setCellStyle(style); 57 cell = row.createCell((short) 2); 58 cell.setCellValue("年龄"); 59 cell.setCellStyle(style); 60 cell = row.createCell((short) 3); 61 cell.setCellValue("生日"); 62 cell.setCellStyle(style); 63 64 // 第五步，写入实体数据 实际应用中这些数据从数据库得到， 65 List list = TestExcelMain.getMember(); 66 67 for (int i = 0; i < list.size(); i++) 68 { 69 row = sheet.createRow((int) i + 1); 70 Member stu = (Member) list.get(i); 71 // 第四步，创建单元格，并设置值 72 row.createCell((short) 0).setCellValue((double) stu.getCode()); 73 row.createCell((short) 1).setCellValue(stu.getName()); 74 row.createCell((short) 2).setCellValue((double) stu.getAge()); 75 cell = row.createCell((short) 3); 76 cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(stu 77 .getBirth())); 78 } 79 // 第六步，将文件存到指定位置 80 try 81 { 82 FileOutputStream fout = new FileOutputStream("E:/Members.xls"); 83 wb.write(fout); 84 fout.close(); 85 } 86 catch (Exception e) 87 { 88 e.printStackTrace(); 89 } 90 } 91 92 public static class Member{ 93 private Integer code; 94 95 private String name; 96 97 private Integer age; 98 99 private Date birth; 100 101 public Member(Integer code, String name, Integer age, Date birth) { 102 super(); 103 this.code = code; 104 this.name = name; 105 this.age = age; 106 this.birth = birth; 107 } 108 109 public Integer getCode() { 110 return code; 111 } 112 113 public void setCode(Integer code) { 114 this.code = code; 115 } 116 117 public String getName() { 118 return name; 119 } 120 121 public void setName(String name) { 122 this.name = name; 123 } 124 125 public Integer getAge() { 126 return age; 127 } 128 129 public void setAge(Integer age) { 130 this.age = age; 131 } 132 133 public Date getBirth() { 134 return birth; 135 } 136 137 public void setBirth(Date birth) { 138 this.birth = birth; 139 } 140 141 142 143 } 144 }
pom文件：
1 <dependency> 2 <groupId>org.apache.poi</groupId> 3 <artifactId>poi</artifactId> 4 <version>3.15</version> 5 </dependency>
效果：
