Excel导出(SSM下的POI导出简单详细)

今天公司要做导出功能，所以就在SSM下研究了下 发现还挺简单的做了个工具类以便自己以后使用

• 使用的第三方架包是POI,使用的框架是SSM
• 第三方架包下载地址: POI官网
• 如果是使用的maven创建的项目，直接导入依赖就好

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.14-beta1</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml-schemas</artifactId>
    <version>3.14-beta1</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.14-beta1</version>
</dependency>
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.2</version>

正式工具代码如下

首先是获得SXSSFWorkbook类的工具类
工具类代码如下

public SXSSFWorkbook export_Flight (List<Flight> flights) {
		SXSSFWorkbook workbook = new SXSSFWorkbook(100);//内存中保留100条数据，以免内存溢出
		Sheet sheet = workbook.createSheet();//获取改工作区间的第一个sheet
		int flightsSize = flights.size();
		Row row = sheet.createRow(0);//标题行
		Cell title1 = row.createCell(0);
		Cell title2 = row.createCell(1);
		Cell title3 = row.createCell(2);
		Cell title4 = row.createCell(3);
		Cell title5 = row.createCell(4);
		Cell title6 = row.createCell(5);
		
		title1.setCellValue("航空编号");
		title2.setCellValue("航空公司");
		title3.setCellValue("起飞日期");
		title4.setCellValue("起飞时间");
		title5.setCellValue("起飞城市");
		title6.setCellValue("到达城市");
		
		for (int i = 0; i < flightsSize; i++) {
			Flight flight = flights.get(i);
			Row row1 = sheet.createRow(i + 1);
			Cell cell1 = row1.createCell(0);
			Cell cell2 = row1.createCell(1);
			Cell cell3 = row1.createCell(2);
			Cell cell4 = row1.createCell(3);
			Cell cell5 = row1.createCell(4);
			Cell cell6 = row1.createCell(5);
			
			cell1.setCellValue(flight.getFlightid());
			cell2.setCellValue(flight.getFlighname());
			cell3.setCellValue(flight.getStartDate());
			cell4.setCellValue(flight.getArrivalTime());
			cell5.setCellValue(flight.getStartCity());
			cell6.setCellValue(flight.getArrivalCity());
		}
		
		return workbook;
	}

我这里是导出一个飞机类的实例，所以命名是这么命名的

然后在控制层写这么一个方法就可以了，代码如下

//导出航班信息
	@RequestMapping("/export")
	public void export(HttpServletResponse response) {
		// 创建新的Excel工作簿
		SXSSFWorkbook workbook = null;
		UtilPoi export = new UtilPoi();
		try {
			String excelName = "flight";
			OutputStream out = response.getOutputStream();
			excelName = new String(excelName.getBytes("GBK"), "ISO8859_1");
			response.setHeader("Content-Disposition", "attachment;filename=" + excelName + ".xlsx");
			//这里flightService.selectFlightPage(1) 只是得到一个flight的集合 不用太关心
			workbook = export.export_Flight(flightService.selectFlightPage(1));
			workbook.write(out);
			out.flush();
			out.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		 
	} 

然后我们看效果:

至此导出完成了,因为第一次写导出所以写的比价简单，如果大家想要更详细的介绍这里推荐一篇博客感觉写的听详细的，有导入和导出
比较详细的导入发出博客推荐