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。
