POI3.8和jxl读取Excel例子

时间 2019-11-07

标签 poi3.8 poi jxl 读取 excel 例子栏目 Apache 繁體版

原文原文链接

这几天在弄java读excel的问题，之前用的是jxl.jar来读的，后来发现没法读取2007的，因而研究了一下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。 html

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，而后将要读取的test.xls和test.xlsx放到upload目录下，而后运行jsp文件便可看到结果： java

（1）用poi.jar来读取excel2003 apache

必需要用到的jar文件： api

poi-3.8-beta5-20111217.jar tomcat

poi-ooxml-3.8-beta5-20111217.jar 服务器

poi-ooxml-schemas-3.8-beta5-20111217.jar app

xmlbeans-2.3.0.jar dom

dom4j-1.6.1.jar xss

jsr173_1.0_api.jar （若是jdk是1.5版本则须要此jar，若是是1.6以上版本则不须要） jsp

为了方便测试，代码为jsp，以下：

[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

须要jxl.jar便可

[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>