文件导出

我这里做的比较简单,就点击导出按钮,到后台写一个导出地址

jsp代码如下

 <%@ page import="mc.global.demo.Export" %>
<%@ page import="java.util.List" %>
<%@ page import="net.sf.json.JSONArray" %>
<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2015/7/28
  Time: 11:19
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
  String data = (String)request.getAttribute("data") ;
%>
<html>
<head>
  <title>上传Excel</title>
  <%@ include file="/global/commonPage/includeHead/head.jsp" %>
  <script type="text/javascript" src="<%=baseUrl%>/global/scripts/jquery/jquery-1.7.2.min.js"></script>
  <script type="text/javascript" src="<%=baseUrl%>/global/scripts/jsrender.js"></script>
</head>
<script>
 function exportClik(){
    var file=document.getElementById("fileName").value;
    fileForm.action = "<%=baseUrl%>/upImageFile.do?method=exportExcel";
    fileForm.submit();
  }
</script>
<body>
<form action="" enctype="multipart/form-data" id="fileForm" name="fileForm"  method="post" >
  <div id="filePanel">
    <table >
      <tr>
        <td width="100px" style="font-size:10px;text-align:center"></td>
        <td><input type="file" id="fileName" name="fileName"  /></td>
        <td style="width:80px"><input type="button" value="导入"  onclick="javascript:improtBudgetVersion()"  id="import1"/></td>
        <td><input type="button" value="导出" onclick="exportClik()" id="export" style="right: auto"></td>
      </tr>
    </table>
      </div>
</form>
</body>
</html>

java 代码,需要jxl及io流jar包

import com.brainlong.framework.struts.BaseDispatchAction;
import jxl.Sheet;
import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Colour;
import jxl.write.*;
import jxl.write.biff.RowsExceededException; 
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;

public class UpImageFileAction extends BaseDispatchAction { 
 ActionForward exportExcel(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)IOException{
        String outputFileName = ;
        String title = ;
        List<String> list =ArrayList<String>();
        list.add();
        list.add();
        list.add();
        list.add();
        list.add();
        WritableWorkbook testBook;
        {
          
            String path=;
OutputStream os = FileOutputStream(path);
            testBook = Workbook.(os);
            WritableSheet ws=testBook.createSheet(outputFileName,);
WritableFont font1 =WritableFont(WritableFont.(), ,WritableFont.);
            WritableFont font2 =WritableFont(WritableFont.(), ,WritableFont.);
            WritableCellFormat wcf = WritableCellFormat(font1);
            WritableCellFormat wcf2 = WritableCellFormat(font2);
            WritableCellFormat wcf3 = WritableCellFormat(font2);wcf.setBackground(Colour.);
            wcf.setAlignment(Alignment.);  wcf3.setAlignment(Alignment.);  wcf.setAlignment(jxl.format.Alignment.);
            (list!=&&list.size()>){
                (i=;i<list.size();i++){
                    ws.addCell(Label(i,,list.get(i),wcf ));
                }
            }

            ws.addCell(Label(,,));
            ws.addCell(Label(,,));
            ws.addCell(Label(,,));
            ws.addCell(Label(,,));
            testBook.write();
            testBook.close();
            os.flush();
            os.close();


        } (FileUploadException e) {
            e.printStackTrace();
        } (RowsExceededException e) {
            e.printStackTrace();
        } (WriteException e) {
            e.printStackTrace();
        }
            ;
    }
}




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