JSP导出Excel文件的方法

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。