Java POI 读取Office excel (2003,2007)及相关jar包

poi-3.7-20101029.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107089

geronimo-stax-api_1.0_spec-1.0.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107083

xmlbeans-2.3.0.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107140

poi-ooxml-3.7-20101029.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107145

poi-ooxml-schemas-3.7-20101029.jar，下载地址：http://download.csdn.net/detail/evangel_z/4108997

以上5个jar，就可读取Excel 2003；

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读取Excel 2007，请加上dom4j-1.6.1.jar，下载地址：http://download.csdn.net/detail/evangel_z/6739735

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poi-3.6-20091214.jar，下载地址：http://download.csdn.net/detail/evangel_z/3895051
poi-contrib-3.6-20091214.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107197

poi-scratch.6-20091214.jar，下载地址：http://download.csdn.net/detail/evangel_z/4107204
读取excel 文件的 java 代码：
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackInputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.LinkedList;
import java.util.List;

import org.apache.poi.POIXMLDocument;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class read_Excel{
    /**
     * 对外提供读取excel 的方法
     */
    public static List<List<Object>> readExcel(File file) throws IOException{
        List<List<Object>> list = new LinkedList<List<Object>>();
        InputStream inp;
        try {
            inp = new FileInputStream(file);
            if(! inp.markSupported()) {
                inp = new PushbackInputStream(inp,;
            }
            try {
                if(POIFSFileSystem.hasPOIFSHeader(inp)) {
                    list = read2003Excel(file);
                }
                if(POIXMLDocument.hasOOXMLHeader(inp)) {
                    list = read2007Excel(file);
                }
            } catch (IOException e) {
                 throw new IOException("不支持的文件类型");
            }
          
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return list;
    }

    /**
     * 读取 office 2003 excel
     * 
     * @throws IOException
     * @throws FileNotFoundException
     */
    private static List<List<Object>> read2003Excel(File file)
            throws IOException {
        List<List<Object>> list = new LinkedList<List<Object>>();
        HSSFWorkbook hwb = new HSSFWorkbook(new FileInputStream(file));
        HSSFSheet sheet = hwb.getSheetAt(0);
        Object value = null;
        HSSFRow row = null;
        HSSFCell cell = null;
        System.out.println("读取office 2003 excel内容如下：");
        for (int i = sheet.getFirstRowNum(); i <= sheet
                .getPhysicalNumberOfRows(); i++) {
            row = sheet.getRow(i);
            if (row == null) {
                continue;
            }
            List<Object> linked = new LinkedList<Object>();
            for (int j = row.getFirstCellNum(); j <= row.getLastCellNum(); j++) {
                cell = row.getCell(j);
                if (cell == null) {
                    continue;
                }
                DecimalFormat df = new DecimalFormat("0");// 格式化 number String
                // 字符
                SimpleDateFormat sdf = new SimpleDateFormat(
                        "yyyy-MM-dd HH:mm:ss");// 格式化日期字符串
                DecimalFormat nf = new DecimalFormat("0.00");// 格式化数字
                switch (cell.getCellType()) {
                case XSSFCell.CELL_TYPE_STRING:
                    // System.out.println(i + "行" + j + " 列 is String type");
                    value = cell.getStringCellValue();
                    System.out.print("  " + value + "  ");
                    break;
                case XSSFCell.CELL_TYPE_NUMERIC:
                    // System.out.println(i + "行" + j
                    // + " 列 is Number type ; DateFormt:"
                    // + cell.getCellStyle().getDataFormatString());
                    if ("@".equals(cell.getCellStyle().getDataFormatString())) {
                        value = df.format(cell.getNumericCellValue());

                    } else if ("General".equals(cell.getCellStyle()
                            .getDataFormatString())) {
                        value = nf.format(cell.getNumericCellValue());
                    } else {
                        value = sdf.format(HSSFDateUtil.getJavaDate(cell
                                .getNumericCellValue()));
                    }
                    System.out.print("  " + value + "  ");
                    break;
                case XSSFCell.CELL_TYPE_BOOLEAN:
                    // System.out.println(i + "行" + j + " 列 is Boolean type");
                    value = cell.getBooleanCellValue();
                    System.out.print("  " + value + "  ");
                    break;
                case XSSFCell.CELL_TYPE_BLANK:
                    // System.out.println(i + "行" + j + " 列 is Blank type");
                    value = "";
                    System.out.print("  " + value + "  ");
                    break;
                default:
                    // System.out.println(i + "行" + j + " 列 is default type");
                    value = cell.toString();
                    System.out.print("  " + value + "  ");
                }
                if (value == null || "".equals(value)) {
                    continue;
                }
                linked.add(value);

            }
            System.out.println("");
            list.add(linked);
        }

        return list;
    }

    /**
     * 读取Office 2007 excel
     */

    private static List<List<Object>> read2007Excel(File file)
            throws IOException {

        List<List<Object>> list = new LinkedList<List<Object>>();
        // String path = System.getProperty("user.dir") +
        // System.getProperty("file.separator")+"dd.xlsx";
        // System.out.println("路径："+path);
        // 构造 XSSFWorkbook 对象，strPath 传入文件路径
        XSSFWorkbook xwb = new XSSFWorkbook(new FileInputStream(file));

        // 读取第一章表格内容
        XSSFSheet sheet = xwb.getSheetAt(0);
        Object value = null;
        XSSFRow row = null;
        XSSFCell cell = null;
        System.out.println("读取office 2007 excel内容如下：");
        for (int i = sheet.getFirstRowNum(); i <= sheet
                .getPhysicalNumberOfRows(); i++) {
            row = sheet.getRow(i);
            if (row == null) {
                continue;
            }
            List<Object> linked = new LinkedList<Object>();
            for (int j = row.getFirstCellNum(); j <= row.getLastCellNum(); j++) {
                cell = row.getCell(j);
                if (cell == null) {
                    continue;
                }
                DecimalFormat df = new DecimalFormat("0");// 格式化 number String
                // 字符
                SimpleDateFormat sdf = new SimpleDateFormat(
                        "yyyy-MM-dd HH:mm:ss");// 格式化日期字符串
                DecimalFormat nf = new DecimalFormat("0.00");// 格式化数字

                switch (cell.getCellType()) {
                case XSSFCell.CELL_TYPE_STRING:
                    // System.out.println(i + "行" + j + " 列 is String type");
                    value = cell.getStringCellValue();
                    System.out.print("  " + value + "  ");
                    break;
                case XSSFCell.CELL_TYPE_NUMERIC:
                    // System.out.println(i + "行" + j
                    // + " 列 is Number type ; DateFormt:"
                    // + cell.getCellStyle().getDataFormatString());
                    if ("@".equals(cell.getCellStyle().getDataFormatString())) {
                        value = df.format(cell.getNumericCellValue());

                    } else if ("General".equals(cell.getCellStyle()
                            .getDataFormatString())) {
                        value = nf.format(cell.getNumericCellValue());
                    } else {
                        value = sdf.format(HSSFDateUtil.getJavaDate(cell
                                .getNumericCellValue()));
                    }
                    System.out.print("  " + value + "  ");
                    break;
                case XSSFCell.CELL_TYPE_BOOLEAN:
                    // System.out.println(i + "行" + j + " 列 is Boolean type");
                    value = cell.getBooleanCellValue();
                    System.out.print("  " + value + "  ");
                    break;
                case XSSFCell.CELL_TYPE_BLANK:
                    // System.out.println(i + "行" + j + " 列 is Blank type");
                    value = "";
                    // System.out.println(value);
                    break;
                default:
                    // System.out.println(i + "行" + j + " 列 is default type");
                    value = cell.toString();
                    System.out.print("  " + value + "  ");
                }
                if (value == null || "".equals(value)) {
                    continue;
                }
                linked.add(value);
            }
            System.out.println("");
            list.add(linked);
        }
        return list;
    }
}