本文实例讲述了JSP导出Excel文件的方法。分享给大家供大家参考，具体如下：
<%@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,交易时间,摘要,借方发生额,贷方发生额,对方账号,对方户名,单位卡号,主卡标识,用途,备注";
IndexedCollection indexedCollection = (IndexedCollection)context.getDataElement("parentCardDetails");
String[] sourceStrArray=flag.split(",");
List selValList = new ArrayList();
selValList.add("序号#");
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('对不起!当前条件没有数据，不能导出!');
//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);
//解决HTTPS不能下载的问题
response.setHeader("Cache-Control","public");
book = Workbook.createWorkbook(response.getOutputStream());
//表头字体
WritableCellFormat writableCellFormat = new WritableCellFormat();
writableCellFormat.setAlignment(Alignment.CENTRE);
writableCellFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
writableCellFormat.setWrap(true);
WritableFont cellFont = new WritableFont(WritableFont.createFont("宋体"), 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);
//标题字体（左对齐）
WritableCellFormat writableCellFormat1 = new WritableCellFormat();
writableCellFormat1.setAlignment(Alignment.CENTRE);
writableCellFormat1.setVerticalAlignment(VerticalAlignment.CENTRE);
writableCellFormat1.setWrap(false);
WritableFont cellFont1 = new WritableFont(WritableFont.createFont("宋体"), 14, WritableFont.NO_BOLD, false,
UnderlineStyle.NO_UNDERLINE, Colour.BLACK);
writableCellFormat1.setFont(cellFont1);
//数据字体（居中）
WritableCellFormat writableCellFormat2 = new WritableCellFormat();
writableCellFormat2.setAlignment(Alignment.CENTRE);
writableCellFormat2.setVerticalAlignment(VerticalAlignment.CENTRE);
writableCellFormat2.setWrap(true);
WritableFont cellFont2 = new WritableFont(WritableFont.createFont("宋体"), 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);//交易时间
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");//借方发生额
String entrAmt2=utb.formatMoney("DEBIT".equals((String)(keyedCollection.getDataValue("DCFlag")))?"0.00":((String)keyedCollection.getDataValue("entrAmt")));//贷方发生额
String OppAc=utb.nvl(keyedCollection.getDataValue("OppAc"), "--");//对方账号
String OppacName=utb.nvl(keyedCollection.getDataValue("OppacName"), "--");//对方户名
String TransCardNo=utb.nvl(keyedCollection.getDataValue("TransCardNo"), "--");//单位卡号
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";}//主卡标识
String Usage=utb.nvl(keyedCollection.getDataValue("Usage"), "--");//用途
String ReMark=utb.nvl(keyedCollection.getDataValue("ReMark"), "--");//备注
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, "序号", writableCellFormat);
sheet.addCell(label);
sheet.setColumnView(i, "序号".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;
}
%>
希望本文所述对大家JSP程序设计有所帮助。