poi读取excel文件
方法1：（转自：http://www.blogjava.net/hwpok/archive/2010/01/20/310263.html）
使用的jar包：poi-3.8-20120326.jar，poi-excelant-3.8-20120326.jar， poi-ooxml-3.8-20120326.jar ，poi-ooxml-schemas-3.8-20120326.jar，poi-scratchpad-3.8-20120326.jar，protobuf-java-2.2.0.jar
Java代码
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/** *//**
* <ul>
* <li>Title:[POI基础上的Excel数据读取工具]</li>
* <li>Description: [支持Excell2003,Excell2007,自动格式化数值型数据,自动格式化日期型数据]</li>
* <li>Copyright 2009 RoadWay Co., Ltd.</li>
* <li>All right reserved.</li>
* <li>Created by [惠万鹏] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
*
* <li>所需Jar包列表</li>
* <li>poi-3.6-20091214.jar</li>
* <li>poi-contrib-3.6-20091214.jar</li>
* <li>poi-examples-3.6-20091214.jar</li>
* <li>poi-ooxml-3.6-20091214.jar</li>
* <li>poi-ooxml-schemas-3.6-20091214.jar</li>
* <li>poi-scratchpad-3.6-20091214.jar</li>
* <li>xmlbeans-2.3.0.jar</li>
* <ul>
*
* @version 1.0
*/
public class POIExcelUtil
{
/** *//** 总行数 */
private int totalRows = 0;
/** *//** 总列数 */
private int totalCells = 0;
/** *//** 构造方法 */
public POIExcelUtil()
{}
/** *//**
* <ul>
* <li>Description:[根据文件名读取excel文件]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param fileName
* @return
* @throws Exception
*/
public List<ArrayList<String>> read(String fileName)
{
List<ArrayList<String>> dataLst = new ArrayList<ArrayList<String>>();
/** *//** 检查文件名是否为空或者是否是Excel格式的文件 */
if (fileName == null || !fileName.matches("^.+\\.(?i)((xls)|(xlsx))$"))
{
return dataLst;
}
boolean isExcel2003 = true;
/** *//** 对文件的合法性进行验证 */
if (fileName.matches("^.+\\.(?i)(xlsx)$"))
{
isExcel2003 = false;
}
/** *//** 检查文件是否存在 */
File file = new File(fileName);
if (file == null || !file.exists())
{
return dataLst;
}
try
{
/** *//** 调用本类提供的根据流读取的方法 */
dataLst = read(new FileInputStream(file), isExcel2003);
}
catch (Exception ex)
{
ex.printStackTrace();
}
/** *//** 返回最后读取的结果 */
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[根据流读取Excel文件]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param inputStream
* @param isExcel2003
* @return
*/
public List<ArrayList<String>> read(InputStream inputStream,
boolean isExcel2003)
{
List<ArrayList<String>> dataLst = null;
try
{
/** *//** 根据版本选择创建Workbook的方式 */
Workbook wb = isExcel2003 ? new HSSFWorkbook(inputStream)
: new XSSFWorkbook(inputStream);
dataLst = read(wb);
}
catch (IOException e)
{
e.printStackTrace();
}
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[得到总行数]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @return
*/
public int getTotalRows()
{
return totalRows;
}
/** *//**
* <ul>
* <li>Description:[得到总列数]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @return
*/
public int getTotalCells()
{
return totalCells;
}
/** *//**
* <ul>
* <li>Description:[读取数据]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param wb
* @return
*/
private List<ArrayList<String>> read(Workbook wb)
{
List<ArrayList<String>> dataLst = new ArrayList<ArrayList<String>>();
/** *//** 得到第一个shell */
Sheet sheet = wb.getSheetAt(0);
this.totalRows = sheet.getPhysicalNumberOfRows();
if (this.totalRows >= 1 && sheet.getRow(0) != null)
{
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
/** *//** 循环Excel的行 */
for (int r = 0; r < this.totalRows; r++)
{
Row row = sheet.getRow(r);
if (row == null)
{
continue;
}
ArrayList<String> rowLst = new ArrayList<String>();
/** *//** 循环Excel的列 */
for (short c = 0; c < this.getTotalCells(); c++)
{
Cell cell = row.getCell(c);
String cellValue = "";
if (cell == null)
{
rowLst.add(cellValue);
continue;
}
/** *//** 处理数字型的,自动去零 */
if (Cell.CELL_TYPE_NUMERIC == cell.getCellType())
{
/** *//** 在excel里,日期也是数字,在此要进行判断 */
if (HSSFDateUtil.isCellDateFormatted(cell))
{
cellValue = DateUtil.get4yMdHms(cell.getDateCellValue());
}
else
{
cellValue = getRightStr(cell.getNumericCellValue() + "");
}
}
/** *//** 处理字符串型 */
else if (Cell.CELL_TYPE_STRING == cell.getCellType())
{
cellValue = cell.getStringCellValue();
}
/** *//** 处理布尔型 */
else if (Cell.CELL_TYPE_BOOLEAN == cell.getCellType())
{
cellValue = cell.getBooleanCellValue() + "";
}
/** *//** 其它的,非以上几种数据类型 */
else
{
cellValue = cell.toString() + "";
}
rowLst.add(cellValue);
}
dataLst.add(rowLst);
}
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[正确地处理整数后自动加零的情况]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param sNum
* @return
*/
private String getRightStr(String sNum)
{
DecimalFormat decimalFormat = new DecimalFormat("#.000000");
String resultStr = decimalFormat.format(new Double(sNum));
if (resultStr.matches("^[-+]?\\d+\\.[0]+$"))
{
resultStr = resultStr.substring(0, resultStr.indexOf("."));
}
return resultStr;
}
/** *//**
* <ul>
* <li>Description:[测试main方法]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception
{
List<ArrayList<String>> dataLst = new POIExcelUtil()
.read("e:/Book1_shao.xls");
for (ArrayList<String> innerLst : dataLst)
{
StringBuffer rowData = new StringBuffer();
for (String dataStr : innerLst)
{
rowData.append(",").append(dataStr);
}
if (rowData.length() > 0)
{
System.out.println(rowData.deleteCharAt(0).toString());
}
}
}
}
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/** *//**
* <ul>
* <li>Title:[POI基础上的Excel数据读取工具]</li>
* <li>Description: [支持Excell2003,Excell2007,自动格式化数值型数据,自动格式化日期型数据]</li>
* <li>Copyright 2009 RoadWay Co., Ltd.</li>
* <li>All right reserved.</li>
* <li>Created by [惠万鹏] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
*
* <li>所需Jar包列表</li>
* <li>poi-3.6-20091214.jar</li>
* <li>poi-contrib-3.6-20091214.jar</li>
* <li>poi-examples-3.6-20091214.jar</li>
* <li>poi-ooxml-3.6-20091214.jar</li>
* <li>poi-ooxml-schemas-3.6-20091214.jar</li>
* <li>poi-scratchpad-3.6-20091214.jar</li>
* <li>xmlbeans-2.3.0.jar</li>
* <ul>
*
* @version 1.0
*/
public class POIExcelUtil
{
/** *//** 总行数 */
private int totalRows = 0;
/** *//** 总列数 */
private int totalCells = 0;
/** *//** 构造方法 */
public POIExcelUtil()
{}
/** *//**
* <ul>
* <li>Description:[根据文件名读取excel文件]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param fileName
* @return
* @throws Exception
*/
public List<ArrayList<String>> read(String fileName)
{
List<ArrayList<String>> dataLst = new ArrayList<ArrayList<String>>();
/** *//** 检查文件名是否为空或者是否是Excel格式的文件 */
if (fileName == null || !fileName.matches("^.+\\.(?i)((xls)|(xlsx))$"))
{
return dataLst;
}
boolean isExcel2003 = true;
/** *//** 对文件的合法性进行验证 */
if (fileName.matches("^.+\\.(?i)(xlsx)$"))
{
isExcel2003 = false;
}
/** *//** 检查文件是否存在 */
File file = new File(fileName);
if (file == null || !file.exists())
{
return dataLst;
}
try
{
/** *//** 调用本类提供的根据流读取的方法 */
dataLst = read(new FileInputStream(file), isExcel2003);
}
catch (Exception ex)
{
ex.printStackTrace();
}
/** *//** 返回最后读取的结果 */
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[根据流读取Excel文件]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param inputStream
* @param isExcel2003
* @return
*/
public List<ArrayList<String>> read(InputStream inputStream,
boolean isExcel2003)
{
List<ArrayList<String>> dataLst = null;
try
{
/** *//** 根据版本选择创建Workbook的方式 */
Workbook wb = isExcel2003 ? new HSSFWorkbook(inputStream)
: new XSSFWorkbook(inputStream);
dataLst = read(wb);
}
catch (IOException e)
{
e.printStackTrace();
}
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[得到总行数]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @return
*/
public int getTotalRows()
{
return totalRows;
}
/** *//**
* <ul>
* <li>Description:[得到总列数]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @return
*/
public int getTotalCells()
{
return totalCells;
}
/** *//**
* <ul>
* <li>Description:[读取数据]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param wb
* @return
*/
private List<ArrayList<String>> read(Workbook wb)
{
List<ArrayList<String>> dataLst = new ArrayList<ArrayList<String>>();
/** *//** 得到第一个shell */
Sheet sheet = wb.getSheetAt(0);
this.totalRows = sheet.getPhysicalNumberOfRows();
if (this.totalRows >= 1 && sheet.getRow(0) != null)
{
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
/** *//** 循环Excel的行 */
for (int r = 0; r < this.totalRows; r++)
{
Row row = sheet.getRow(r);
if (row == null)
{
continue;
}
ArrayList<String> rowLst = new ArrayList<String>();
/** *//** 循环Excel的列 */
for (short c = 0; c < this.getTotalCells(); c++)
{
Cell cell = row.getCell(c);
String cellValue = "";
if (cell == null)
{
rowLst.add(cellValue);
continue;
}
/** *//** 处理数字型的,自动去零 */
if (Cell.CELL_TYPE_NUMERIC == cell.getCellType())
{
/** *//** 在excel里,日期也是数字,在此要进行判断 */
if (HSSFDateUtil.isCellDateFormatted(cell))
{
cellValue = DateUtil.get4yMdHms(cell.getDateCellValue());
}
else
{
cellValue = getRightStr(cell.getNumericCellValue() + "");
}
}
/** *//** 处理字符串型 */
else if (Cell.CELL_TYPE_STRING == cell.getCellType())
{
cellValue = cell.getStringCellValue();
}
/** *//** 处理布尔型 */
else if (Cell.CELL_TYPE_BOOLEAN == cell.getCellType())
{
cellValue = cell.getBooleanCellValue() + "";
}
/** *//** 其它的,非以上几种数据类型 */
else
{
cellValue = cell.toString() + "";
}
rowLst.add(cellValue);
}
dataLst.add(rowLst);
}
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[正确地处理整数后自动加零的情况]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param sNum
* @return
*/
private String getRightStr(String sNum)
{
DecimalFormat decimalFormat = new DecimalFormat("#.000000");
String resultStr = decimalFormat.format(new Double(sNum));
if (resultStr.matches("^[-+]?\\d+\\.[0]+$"))
{
resultStr = resultStr.substring(0, resultStr.indexOf("."));
}
return resultStr;
}
/** *//**
* <ul>
* <li>Description:[测试main方法]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception
{
List<ArrayList<String>> dataLst = new POIExcelUtil()
.read("e:/Book1_shao.xls");
for (ArrayList<String> innerLst : dataLst)
{
StringBuffer rowData = new StringBuffer();
for (String dataStr : innerLst)
{
rowData.append(",").append(dataStr);
}
if (rowData.length() > 0)
{
System.out.println(rowData.deleteCharAt(0).toString());
}
}
}
}
方法2：已通过测试
Java代码
// 构造 XSSFWorkbook 对象，strPath 传入文件路径
XSSFWorkbook xwb = new XSSFWorkbook(fileName);
XSSFSheet sheet = null;
sheet = xwb.getSheet(sheetName);
//int num = xwb.getSheetIndex(sheetName);
//sheet = xwb.getSheetAt(num);
}
// 定义 row、cell
XSSFRow row;
String cell;
// 循环输出表格中的内容
for (int i = sheet.getFirstRowNum(); i < sheet
.getPhysicalNumberOfRows(); i++) {
row = sheet.getRow(i);//获取行数据
for (int j = row.getFirstCellNum(); j < row
.getPhysicalNumberOfCells(); j++) {
// 通过 row.getCell(j).toString() 获取单元格内容，
cell = row.getCell(j).toString();//获取列数据
System.out.print(cell + "\t");
}
System.out.println("");
}
// 构造 XSSFWorkbook 对象，strPath 传入文件路径
XSSFWorkbook xwb = new XSSFWorkbook(fileName);
XSSFSheet sheet = null;
sheet = xwb.getSheet(sheetName);
//int num = xwb.getSheetIndex(sheetName);
//sheet = xwb.getSheetAt(num);
}
// 定义 row、cell
XSSFRow row;
String cell;
// 循环输出表格中的内容
for (int i = sheet.getFirstRowNum(); i < sheet
.getPhysicalNumberOfRows(); i++) {
row = sheet.getRow(i);//获取行数据
for (int j = row.getFirstCellNum(); j < row
.getPhysicalNumberOfCells(); j++) {
// 通过 row.getCell(j).toString() 获取单元格内容，
cell = row.getCell(j).toString();//获取列数据
System.out.print(cell + "\t");
}
System.out.println("");
}
方法3：（若读取excel97---excel2003可试用以下方法，该方法已测试通过）
Java代码
//该方法根据参数返回该页指定单元格中的内容
//该方法根据参数返回该页指定单元格中的内容Java代码
public String getExcelCellValueByParams(String fileName, String sheetName, String cellNum){//传入的参数依次为excel文件名、sheet页名称(或sheet页下标)、单元格位置(例如A1、B1)
String cellValue = "";
try {
String n = fileName.substring(fileName.lastIndexOf(".")+1, fileName
.length());
if (n.equalsIgnoreCase("xls")) {
jxl.Workbook wb = Workbook.getWorkbook(new File(fileName));
Sheet rs = null;
if (isNumeric(sheetName)) {//判断该参数是否为数字
rs = wb.getSheet(Integer.valueOf(sheetName));// 根据下标读取sheet页
} else {
rs = wb.getSheet(sheetName);// 根据sheet名称读取该页
}
Cell cell = rs.getCell(cellNum);
cellValue = cell.getContents();
}
} catch (BiffException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return cellValue;
}
使用的jar包：poi-3.8-20120326.jar，poi-excelant-3.8-20120326.jar， poi-ooxml-3.8-20120326.jar ，poi-ooxml-schemas-3.8-20120326.jar，poi-scratchpad-3.8-20120326.jar，protobuf-java-2.2.0.jar，
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