利用jsp导出excel(菜鸟篇)
由于经常到本站找前辈们的资料,觉得非常方便,加上本人记忆力十分差劲,所以今天开博上来保存一些资料,如果恰好有人能用的到希望也能给大家点启发
最近要做报表,导出excel是必须的,所以本人提前准备了一下,本着偷懒的想法(汗~杂说漏了)本人决定用jsp导出 方法2种:
第一种:poi+jsp导出excel
<%@ page language="java" contentType="text/html;charset=GBK"%> <%@ page import = "java.util.*"%> <jsp:directive.page import="java.text.SimpleDateFormat"/> <jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFWorkbook"/> <jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFSheet"/> <jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFRow"/> <jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFCell"/> <%@ page import="com.test.dto.testDTO"%>
poi的包不多说了 剩下的就是jsp设置和自己用到的其他包
<%@ page language="java" contentType="text/html;charset=GBK"%>
<%@ page import = "java.util.*"%>
<jsp:directive.page import="java.text.SimpleDateFormat"/>
<jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFWorkbook"/>
<jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFSheet"/>
<jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFRow"/>
<jsp:directive.page import="org.apache.poi.hssf.usermodel.HSSFCell"/>
<%@ page import="com.test.dto.testDTO"%>
<%
//设置excel的名字
String name = "download.xls";
response.reset();
response.setContentType("application/download");
response.setHeader("Content-Disposition", "attachment; filename=" + new String(name.getBytes("gbk"), "iso8859-1"));
//设置初始行数
int rownumber = 1;
//初始化Book
HSSFWorkbook wb = new HSSFWorkbook();
//建立个sheet
HSSFSheet sheet = wb.createSheet("sheet");
//设置列宽度
sheet.setColumnWidth((short) 0, (short) 3000);
sheet.setColumnWidth((short) 1, (short) 3000); //想导出几个字段就设置几个
// 表头信息
HSSFRow headers = sheet.createRow( (short) 0);
//建立单元格
HSSFCell header8 = headers.createCell( (short) 0) ;
//设置字符集
header8.setEncoding(HSSFCell.ENCODING_UTF_16);
//单元格的头名称 类似展现table时的列头
header8.setCellValue("礼品名称");
HSSFCell header7 = headers.createCell( (short) 1) ;
header7.setEncoding(HSSFCell.ENCODING_UTF_16);
header7.setCellValue("礼品价格");
//接受servlet传过来的list
if(request.getAttribute("list") != null){
ArrayList list = (ArrayList)request.getAttribute("list");
//遍历
for(int i = 0;i < list.size();i ++){
testDTO dto = (testDTO )list.get(i);
//插入数据 创建一行
HSSFRow headers_list = sheet.createRow((short)(rownumber));
//通过遍历把"每一列的" cell填充上自己的数据 需要几个字段就创建几个
HSSFCell header0_list = headers_list.createCell((short)0);
header0_list.setEncoding(HSSFCell.ENCODING_UTF_16);
header0_list.setCellValue(dto.getPartnername());
HSSFCell header1_list = headers_list.createCell((short)1);
header1_list.setEncoding(HSSFCell.ENCODING_UTF_16);
header1_list.setCellValue(dto.getPetype());
rownumber++;
}
}
wb.write(response.getOutputStream());
out.clear();
out = pageContext.pushBody();
%>
第二种:纯jsp导出excel(更偷懒)
<%@ page contentType="application/download;charset=GBK"%>
<%@ page import="java.util.ArrayList,java.util.HashMap"%>
<%@ page import="com.test.dto.testDTO"%>
<%
String name = "download.xls";
name = new String(name.getBytes("GBK"), "ISO-8859-1");
response.setHeader("Content-Disposition", "attachment; filename=" + name);
%>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<table width="100%" border="1" align="center" cellpadding="0" cellspacing="1" class="con_02">
<tr>
<td>
列1
</td>
<td>
列2
</td>
<td>
列3
</td>
</tr>
<%
ArrayList list = (ArrayList)request.getAttribute("list");
if(list.size()>0)
{
for(int i = 0; i<list.size();i++)
{
testDTO dto1 = (testDTO)list.get(i);
%>
<tr>
<td><%= dto1.getPartnername()%></td>
<td><%= dto1.getPartnername()%></td>
<td><%= dto1.getPartnername()%></td>
</tr>
<%
}
}
%>
</table>
</head>
注释不多,但是其实里面别的代码没有,基本就是html组成的table和tr,td什么的,重要的就是头部信息的设置
由于本人还属于菜鸟级别,如有错误请大家批评指证,并无写教程的想法,只为记录资料 :)