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JSP如何导出Excel文件?

2015-11-12 20:42:31 来源:www.45fan.com 【

JSP如何导出Excel文件?

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。


本文地址:http://www.45fan.com/bcdm/27844.html
Tags: 导出 JSP excel
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