jxl在web專案中以IO流的形式寫入excel檔案
阿新 • • 發佈：2019-02-06
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> This is my JSP page. <br> <form action="servlet/Testjxl" method="post"> <input type="submit" value="到處excel"> </form> </body> </html>
package cn.itcast.poi;import jxl.format.Alignment; import jxl.format.Border; import jxl.format.BorderLineStyle; import jxl.format.Colour; import jxl.format.VerticalAlignment; import jxl.write.WritableCellFormat; import jxl.write.WritableFont; import jxl.write.WriteException; public class SetCellFormat { //設定第二行的樣式 public WritableCellFormat getsencondFormat() { // 設定字型 WritableFont wf = new WritableFont(WritableFont.ARIAL, 10, WritableFont.BOLD); // 建立單元格FORMAT WritableCellFormat wcf = new WritableCellFormat(wf); try { wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setLocked(true); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); wcf.setBackground(Colour.GREY_25_PERCENT); } catch (WriteException e) { // TODO Auto-generated catch block e.printStackTrace(); } return wcf; } //設定標題樣式 public WritableCellFormat gettitleFormat() { WritableFont wf = new WritableFont(WritableFont.ARIAL, 18, WritableFont.BOLD); // 建立單元格FORMAT WritableCellFormat wcf = new WritableCellFormat(wf); try { wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setLocked(true); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); } catch (WriteException e) { // TODO Auto-generated catch block e.printStackTrace(); } //wcf.setBackground(Colour.GREY_25_PERCENT); return wcf; } // 設定所有行的樣式 public WritableCellFormat getallFormat() { WritableFont wf = new WritableFont(WritableFont.ARIAL, 10); // 建立單元格FORMAT WritableCellFormat wcf = new WritableCellFormat(wf); try { wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setLocked(true); wcf.setWrap(true); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); //wcf.setBackground(Colour.GREY_25_PERCENT); } catch (WriteException e) { // TODO Auto-generated catch block e.printStackTrace(); } return wcf; } //設定第五列的樣式 public WritableCellFormat getfirdFormat() { WritableFont wf = new WritableFont(WritableFont.ARIAL, 10); // 建立單元格FORMAT WritableCellFormat wcf = new WritableCellFormat(wf); try { //wcf.setAlignment(Alignment.CENTRE); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf.setLocked(true); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); //wcf.setBackground(Colour.GREY_25_PERCENT); } catch (WriteException e) { e.printStackTrace(); } return wcf; } }
package cn.itcast.poi; import java.io.IOException; import java.io.OutputStream; import java.io.PrintStream; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import jxl.Workbook; import jxl.write.WriteException; import jxl.write.biff.RowsExceededException; public class Testjxl extends HttpServlet { private static final long serialVersionUID = 1L; public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { //獲取輸出流 OutputStream out = response.getOutputStream(); System.out.println(out); //重置輸出流 response.reset(); //設定匯出Excel報表的匯出形式 response.setContentType("application/vnd.ms-excel"); jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(out); jxl.write.WritableSheet ws = wwb.createSheet("表格 1", 0); for (int i = 0; i < 7; i++) { ws.setColumnView(i + 1, 14); if (i == 4) ws.setColumnView(i, 50); } SetCellFormat format = new SetCellFormat(); jxl.write.Number labelo = new jxl.write.Number(0, 0, 0, format.getallFormat()); jxl.write.Number labe1 = new jxl.write.Number(0, 1, 11, format.getallFormat()); jxl.write.Number labe2 = new jxl.write.Number(0, 2, 22, format.getallFormat()); ws.addCell(labelo); ws.addCell(labe1); ws.addCell(labe2); //設定輸出形式 System.setOut(new PrintStream(out)); wwb.write(); // 關閉Excel工作薄物件 wwb.close(); } catch (RowsExceededException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doGet(request, response); } }