本篇文章基于java把数据库中的数据以Excel的方式导出，欢迎各位大神吐槽：
1、基于maven jar包引入如下：
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<dependency> <groupId>net.sourceforge.jexcelapi</groupId> <artifactId>jxl</artifactId> <version>2.6.12</version> </dependency> |
2、首先创建数据库对应的实体类VO ：UserVO（具体代码省略）；
3、确定导出Excel内的title列，并放在数组里：String[] （具体代码省略）；
4、编写导出Excel的方法：
传入参数：
Excel名称，Excel内的title列数组String[]，数据集合List<UserVO>
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package bp.util;import java.io.OutputStream;import java.util.List;import javax.servlet.http.HttpServletResponse;import java.lang.reflect.Field;import jxl.Workbook;import jxl.format.Alignment;import jxl.format.Border;import jxl.format.BorderLineStyle;import jxl.format.VerticalAlignment;import jxl.write.Label;import jxl.write.WritableCellFormat;import jxl.write.WritableFont;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;public class ExportExcel { public final static String exportExcel(String fileName, String[] Title, List listContent, HttpServletResponse response) { String result = "Excel文件导出成功！"; try { OutputStream os = response.getOutputStream(); response.reset(); response.setHeader("Content-disposition", "attachment; filename=" + new String(fileName.getBytes("GB2312"), "ISO8859-1")); response.setContentType("application/msexcel"); WritableWorkbook workbook = Workbook.createWorkbook(os); WritableSheet sheet = workbook.createSheet("Sheet1", 0); jxl.SheetSettings sheetset = sheet.getSettings(); sheetset.setProtected(false); WritableFont BoldFont = new WritableFont(WritableFont.ARIAL, 10, WritableFont.BOLD); WritableCellFormat wcf_center = new WritableCellFormat(BoldFont); wcf_center.setBorder(Border.ALL, BorderLineStyle.THIN); wcf_center.setVerticalAlignment(VerticalAlignment.CENTRE); wcf_center.setAlignment(Alignment.CENTRE); wcf_center.setWrap(true); for (int i = 0; i < Title.length; i++) { sheet.setColumnView(i, 20); sheet.addCell(new Label(i, 0, Title[i], wcf_center)); } Field[] fields = null; int i = 1; for (Object obj : listContent) { fields = obj.getClass().getDeclaredFields(); int j = 0; for (Field v : fields) { v.setAccessible(true); Object va = v.get(obj); if (va == null) { va = ""; } sheet.addCell(new Label(j, i, va.toString(), wcf_center)); j++; } i++; } workbook.write(); workbook.close(); } catch (Exception e) { result = "Excel文件导出失败"; e.printStackTrace(); } return result; }} |
在需要导出数据的时候调用此方法即可；
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://www.cnblogs.com/bestxyl/p/7383103.html
