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JSP導出Excel文件的方法

2020-07-27 21:29:46
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本文實例講述了JSP導出Excel文件的方法。分享給大家供大家參考,具體如下:

<%@page import="jxl.Workbook,com.ecc.emp.core.*,com.ecc.emp.data.*,com.ecc.emp.jdbc.ConnectionManager,jxl.format.VerticalAlignment,java.sql.*,jxl.write.*,jxl.format.UnderlineStyle,javax.sql.DataSource"%><%@page language="java" contentType="text/html; charset=UTF-8"%><%@taglib uri="/WEB-INF/CTP.tld" prefix="ctp"%><jsp:directive.page import="java.util.List"/><jsp:directive.page import="java.util.ArrayList"/><%@ include file="http://www.xxxx.com/head.jsp" %><% Context context = (Context)request.getAttribute("context");String flag ="交易日期,交易時間,摘要,借方發生額,貸方發生額,對方賬號,對方戶名,單位卡號,主卡標識,用途,備注"; IndexedCollection indexedCollection = (IndexedCollection)context.getDataElement("parentCardDetails"); String[] sourceStrArray=flag.split(","); List selValList = new ArrayList(); selValList.add("序號#"); for(int i=0;i<sourceStrArray.length;i++){  selValList.add(sourceStrArray[i]+"#"); } WritableWorkbook book = null; if (indexedCollection == null || indexedCollection.size()<0)  {%> <script language="javascript">  alert('對不起!當前條件沒有數據,不能導出!');  //history.go(-1); </script> <% } else  {  response.reset();  response.setContentType("charset=UTF-8");  response.setContentType("application/vnd.ms-excel");  String filename = "regularInform.xls";  response.setHeader("Content-Disposition","attachment; filename=" + filename);  //解決HTTPS不能下載的問題  response.setHeader("Cache-Control","public");  book = Workbook.createWorkbook(response.getOutputStream());  //表頭字體  WritableCellFormat writableCellFormat = new WritableCellFormat();  writableCellFormat.setAlignment(Alignment.CENTRE);  writableCellFormat.setVerticalAlignment(VerticalAlignment.CENTRE);  writableCellFormat.setWrap(true);  WritableFont cellFont = new WritableFont(WritableFont.createFont("宋體"), 14, WritableFont.BOLD, false,  UnderlineStyle.NO_UNDERLINE, Colour.BLACK);  writableCellFormat.setFont(cellFont);  writableCellFormat.setBorder(Border.ALL,  BorderLineStyle.THIN);  writableCellFormat.setBackground(Colour.SKY_BLUE,  Pattern.SOLID);  //標題字體(左對齊)  WritableCellFormat writableCellFormat1 = new WritableCellFormat();  writableCellFormat1.setAlignment(Alignment.CENTRE);  writableCellFormat1.setVerticalAlignment(VerticalAlignment.CENTRE);  writableCellFormat1.setWrap(false);  WritableFont cellFont1 = new WritableFont(WritableFont.createFont("宋體"), 14, WritableFont.NO_BOLD, false,  UnderlineStyle.NO_UNDERLINE, Colour.BLACK);  writableCellFormat1.setFont(cellFont1);  //數據字體(居中)  WritableCellFormat writableCellFormat2 = new WritableCellFormat();  writableCellFormat2.setAlignment(Alignment.CENTRE);  writableCellFormat2.setVerticalAlignment(VerticalAlignment.CENTRE);  writableCellFormat2.setWrap(true);  WritableFont cellFont2 = new WritableFont(WritableFont.createFont("宋體"), 10, WritableFont.NO_BOLD, false,  UnderlineStyle.NO_UNDERLINE, Colour.BLACK);  writableCellFormat2.setFont(cellFont2);  writableCellFormat2.setBorder(Border.ALL,BorderLineStyle.THIN);  WritableSheet sheet = book.createSheet("Sheet1", 0);  sheet = setSheetHeader(sheet, writableCellFormat, selValList);  int startRow = 2;  Label label1 = null;  int m = 0;  sheet.mergeCells(0, 0, selValList.size()-1, 0);  if(indexedCollection!=null && indexedCollection.size()>0)   {        for (int i = 0; i < indexedCollection.size(); i++){         KeyedCollection keyedCollection = (KeyedCollection) indexedCollection.get(i);        String TranDate=(String)keyedCollection.getDataValue("TranDate");//交易日期        String tt = (String)keyedCollection.getDataValue("TranTime");        tt = tt.substring(0,2)+":"+tt.substring(2,4);//交易時間        String narr=utb.nvl(keyedCollection.getDataValue("narr"), "--");//摘要        String entrAmt1=utb.formatMoney("DEBIT".equals((String)(keyedCollection.getDataValue("DCFlag")))?((String)keyedCollection.getDataValue("entrAmt")):"0.00");//借方發生額        String entrAmt2=utb.formatMoney("DEBIT".equals((String)(keyedCollection.getDataValue("DCFlag")))?"0.00":((String)keyedCollection.getDataValue("entrAmt")));//貸方發生額        String OppAc=utb.nvl(keyedCollection.getDataValue("OppAc"), "--");//對方賬號        String OppacName=utb.nvl(keyedCollection.getDataValue("OppacName"), "--");//對方戶名        String TransCardNo=utb.nvl(keyedCollection.getDataValue("TransCardNo"), "--");//單位卡號        String stdflag=(String)context.getDataValue("stdflag");        String cardNo=(String)context.getDataValue("parentCardNo");        String mainflag = "附";if(!"parent".equals(stdflag)){}else{mainflag = cardNo.equals((String)(keyedCollection.getDataValue("TransCardNo")))?"主":"附";}//主卡標識        String Usage=utb.nvl(keyedCollection.getDataValue("Usage"), "--");//用途        String ReMark=utb.nvl(keyedCollection.getDataValue("ReMark"), "--");//備注       int k = 0;       sheet.setRowView(startRow, 450);       label1 = new Label(k, startRow, (startRow-1)+"", writableCellFormat2);       sheet.addCell(label1);       k++;       //(列,行,值,格式)       label1 = new Label(k, startRow,TranDate, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,tt, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,narr, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,entrAmt1, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,entrAmt2, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,OppAc, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,OppacName, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,TransCardNo, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,mainflag, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,Usage, writableCellFormat2);       sheet.addCell(label1);       k++;       label1 = new Label(k, startRow,ReMark, writableCellFormat2);       sheet.addCell(label1);       k++;       startRow = startRow+1;       }       }   book.write();   try {    book.close();    response.flushBuffer();   } catch (Exception e) {    System.out.println("Excel is not exist!");   }   out = pageContext.pushBody();  }%><%!private static WritableSheet setSheetHeader(WritableSheet sheet,WritableCellFormat writableCellFormat, List selValList) throws Exception  {  int i = 0;  int j = 1;  Label label = new Label(i, j, "序號", writableCellFormat);  sheet.addCell(label);  sheet.setColumnView(i, "序號".length() * 4);  for(int w =1; w < selValList.size(); w++)  {   label = new Label(w, j, ((String)selValList.get(w)).split("#")[0], writableCellFormat);   sheet.addCell(label);   sheet.setColumnView(w, ((String)selValList.get(w)).split("#")[0].length() * 5);  }  return sheet; }%>

希望本文所述對大家JSP程序設計有所幫助。

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