POI3.8和jxl读取Excel例子
这几天在弄java读excel的问题，以前用的是jxl.jar来读的，后来发现无法读取2007的，于是研究了一下POI，在网上下了最新版的poi-bin-3.8-beta5-20111217.zip，同时也参考了网上其它人写的代码，在jboss7服务器下成功读出，发demo吧。
使用方法：jboss服务器或tomcat服务器，将下面的jsp文件保存到某个域名下，同时在此文件所在的目录中新建一个upload目录，然后将要读取的test.xls和test.xlsx放到upload目录下，然后运行jsp文件即可看到结果：
（1）用poi.jar来读取excel2003
必须要用到的jar文件：
poi-3.8-beta5-20111217.jar
poi-ooxml-3.8-beta5-20111217.jar
poi-ooxml-schemas-3.8-beta5-20111217.jar
xmlbeans-2.3.0.jar
dom4j-1.6.1.jar
jsr173_1.0_api.jar （如果jdk是1.5版本则需要此jar，如果是1.6以上版本则不需要）
为了方便测试，代码为jsp，如下：
[html] view plain copy print ?
- <%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
- <%@ page import="java.io.*,org.apache.poi.poifs.filesystem.POIFSFileSystem,org.apache.poi.hssf.record.*,org.apache.poi.hssf.model.*,org.apache.poi.hssf.usermodel.*,org.apache.poi.hssf.util.*" %>
- <%request.setCharacterEncoding("gb2312");%>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
- <title>用poi.jar来读取excel2003</title>
- </head>
- <body bgcolor="#F2F8FF">
- <%
- try{
- String file = application.getRealPath("/") + "upload\\test.xls";
- POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(file));
- HSSFWorkbook xwb = new HSSFWorkbook(fs);
- //读取第一个sheet
- HSSFSheet sheet = xwb.getSheetAt(0);
- //定义 row、cell
- HSSFRow row;
- HSSFCell cell;
- String output;
- int rowNum;
- int cellNum;
- //循环输出表格中的内容
- output = "";
- rowNum = sheet.getPhysicalNumberOfRows();
- for (int i = 0; i < rowNum; i++)
- {
- row = sheet.getRow(i);
- cellNum = row.getPhysicalNumberOfCells();
- for (int j = 0; j < cellNum; j++)
- {
- cell = row.getCell(j);
- output = output + cell.getStringCellValue() + " ";
- }
- output = output + "<br />";
- }
- out.print(output);
- }catch(Exception e){
- out.print(e.toString());
- }
- %>
- </body>
- </html>
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
<%@ page import="java.io.*,org.apache.poi.poifs.filesystem.POIFSFileSystem,org.apache.poi.hssf.record.*,org.apache.poi.hssf.model.*,org.apache.poi.hssf.usermodel.*,org.apache.poi.hssf.util.*" %>
<%request.setCharacterEncoding("gb2312");%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>用poi.jar来读取excel2003</title>
</head>
<body bgcolor="#F2F8FF">
<%
try{
String file = application.getRealPath("/") + "upload\\test.xls";
POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(file));
HSSFWorkbook xwb = new HSSFWorkbook(fs);
//读取第一个sheet
HSSFSheet sheet = xwb.getSheetAt(0);
//定义 row、cell
HSSFRow row;
HSSFCell cell;
String output;
int rowNum;
int cellNum;
//循环输出表格中的内容
output = "";
rowNum = sheet.getPhysicalNumberOfRows();
for (int i = 0; i < rowNum; i++)
{
row = sheet.getRow(i);
cellNum = row.getPhysicalNumberOfCells();
for (int j = 0; j < cellNum; j++)
{
cell = row.getCell(j);
output = output + cell.getStringCellValue() + " ";
}
output = output + "<br />";
}
out.print(output);
}catch(Exception e){
out.print(e.toString());
}
%>
</body>
</html>
（2）用poi读取excel2007的代码
所需jar文件同上
[html] view plain copy print ?
- <%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
- <%@ page import="org.apache.poi.xssf.usermodel.XSSFRow,org.apache.poi.xssf.usermodel.XSSFSheet,org.apache.poi.xssf.usermodel.XSSFWorkbook,org.apache.poi.xssf.usermodel.XSSFCell" %>
- <%request.setCharacterEncoding("gb2312");%>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
- <title>用poi.jar来读取excel2007</title>
- </head>
- <body bgcolor="#F2F8FF">
- <%
- try{
- String file = application.getRealPath("/") + "upload\\test.xlsx";
- XSSFWorkbook xwb = new XSSFWorkbook(new FileInputStream(file));
- //读取第一个sheet
- XSSFSheet sheet = xwb.getSheetAt(0);
- //定义 row、cell
- XSSFRow row;
- XSSFCell cell;
- String output;
- int rowNum;
- int cellNum;
- //循环输出表格中的内容
- output = "";
- rowNum = sheet.getLastRowNum();
- for (int i = 0; i <= rowNum; i++)
- {
- row = sheet.getRow(i);
- cellNum = row.getPhysicalNumberOfCells();
- for (int j = 0; j < cellNum; j++)
- {
- cell = row.getCell(j);
- output = output + cell.getStringCellValue() + " ";
- }
- output = output + "<br />";
- }
- out.print(output);
- }catch(Exception e){
- out.print(e.toString());
- }
- %>
- </body>
- </html>
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
<%@ page import="org.apache.poi.xssf.usermodel.XSSFRow,org.apache.poi.xssf.usermodel.XSSFSheet,org.apache.poi.xssf.usermodel.XSSFWorkbook,org.apache.poi.xssf.usermodel.XSSFCell" %>
<%request.setCharacterEncoding("gb2312");%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>用poi.jar来读取excel2007</title>
</head>
<body bgcolor="#F2F8FF">
<%
try{
String file = application.getRealPath("/") + "upload\\test.xlsx";
XSSFWorkbook xwb = new XSSFWorkbook(new FileInputStream(file));
//读取第一个sheet
XSSFSheet sheet = xwb.getSheetAt(0);
//定义 row、cell
XSSFRow row;
XSSFCell cell;
String output;
int rowNum;
int cellNum;
//循环输出表格中的内容
output = "";
rowNum = sheet.getLastRowNum();
for (int i = 0; i <= rowNum; i++)
{
row = sheet.getRow(i);
cellNum = row.getPhysicalNumberOfCells();
for (int j = 0; j < cellNum; j++)
{
cell = row.getCell(j);
output = output + cell.getStringCellValue() + " ";
}
output = output + "<br />";
}
out.print(output);
}catch(Exception e){
out.print(e.toString());
}
%>
</body>
</html>
（3）用jxl.jar读取excel2003的代码
需要jxl.jar即可
[html] view plain copy print ?
- <%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
- <%@ page import="jxl.*" %>
- <%request.setCharacterEncoding("gb2312");%>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
- <title>用jxl.jar来读取excel2003</title>
- </head>
- <body bgcolor="#F2F8FF">
- <%
- try{
- String file = application.getRealPath("/") + "upload\\test.xls";
- Workbook workbook = Workbook.getWorkbook(new File(file));
- Sheet sheet = workbook.getSheet(0);
- Cell c1 = null;
- String s1 = "";
- c1 = sheet.getCell(0,0);
- s1 = c1.getContents();
- workbook.close();
- out.print(s1);
- }catch(Exception e){
- out.print(e.toString());
- }
- %>
- </body>
- </html>
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
<%@ page import="jxl.*" %>
<%request.setCharacterEncoding("gb2312");%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>用jxl.jar来读取excel2003</title>
</head>
<body bgcolor="#F2F8FF">
<%
try{
String file = application.getRealPath("/") + "upload\\test.xls";
Workbook workbook = Workbook.getWorkbook(new File(file));
Sheet sheet = workbook.getSheet(0);
Cell c1 = null;
String s1 = "";
c1 = sheet.getCell(0,0);
s1 = c1.getContents();
workbook.close();
out.print(s1);
}catch(Exception e){
out.print(e.toString());
}
%>
</body>
</html>
相关jar库及代码资源下载：
http://download.csdn.net/detail/uixor_/4016423