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    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;isourceStrArray.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。

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