一、简介
HSSF 是POI项目的纯的java的Excel97(-2007)文件格式的实现。XSSF是POI 项目的Excel 2007 OOxml (.xlsx)文件格式的Java实现。HSSF and XSSF提供多种方式来阅读电子表格创建、修改、读取和写入XLS电子表格。
它提供如下功能:
项目网址如下:http://poi.apache.org/sPReadsheet/index.html 。
二、实例
1、相关依赖如下:
<dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.12</version></dependency><dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.12</version></dependency>
2、示例代码如下:
1 package com.test.excel; 2 3 import java.io.FileOutputStream; 4 import java.util.ArrayList; 5 import java.util.List; 6 7 import org.apache.poi.ss.usermodel.Cell; 8 import org.apache.poi.ss.usermodel.Row; 9 import org.apache.poi.ss.usermodel.Sheet;10 import org.apache.poi.xssf.streaming.SXSSFWorkbook;11 12 /**13 * 14 *excle导出 15 */16 public class ExcelCreate {17 18 /**19 * excel生成20 */21 public static void main(String[] args) throws Throwable {22 // 表头23 List<String> headerList = new ArrayList<>(10);24 for (int i = 1; i <= 10; i++) {25 headerList.add("表头" + i);26 }27 28 // 数据29 List<String[]> dataRowList2 = new ArrayList<String[]>(10);30 for (int i = 1; i <= headerList.size(); i++) {31 dataRowList2.add(new String[] { "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i });32 }33 34 SXSSFWorkbook workbook = new SXSSFWorkbook(90);35 Sheet sheet = workbook.createSheet("Export");36 37 int rownum = 0;38 // 表头39 Row row = sheet.createRow(rownum++);40 for (int i = 0; i < headerList.size(); i++) {41 Cell cell = row.createCell(i);42 cell.setCellValue(headerList.get(i));43 }44 45 // 数据46 for (String[] array : dataRowList2) {47 row = sheet.createRow(rownum++);48 String[] arraya = (String[]) array;49 for (int i = 0; i < dataRowList2.size(); i++) {50 Cell cell = row.createCell(i);51 cell.setCellValue(arraya[i]);52 }53 }54 55 56 FileOutputStream os = new FileOutputStream("c:/test/testexcel.xlsx");57 58 //以下代码可进行文件下载59 // response.reset();60 // response.setContentType("application/octet-stream; charset=utf-8");61 // response.setHeader("Content-Disposition", "attachment; filename="+Encodes.urlEncode("testexcel.xlsx"));62 // write(response.getOutputStream());63 64 workbook.write(os);65 workbook.dispose();66 }67 }
3、运行结果如下:
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