Java 操作 Excel (读取Excel2003 2007，Poi实现)
一. Apache POI 简介（ http://poi.apache.org/）
使用Java程序读写Microsoft Office，提供了下面这几种类型：
HSSF－提供读写Microsoft Excel XLS格式档案的功能。
XSSF－提供读写Microsoft Excel OOXML XLSX格式档案的功能。
HWPF－提供读写Microsoft Word DOC格式档案的功能。
HSLF－ 供读写Microsoft PowerPoint格式档案的功能。
HDGF－提供读Microsoft Visio格式档案的功能。
HPBF－提供读Microsoft Publisher格式档案的功能。
二、POI操作Excel
1. 官方快速帮助：http://poi.apache.org/spreadsheet/quick-guide.html
2. 导入包：
dom4j-1.6.1.jar
junit-3.8.1.jar
poi-3.8-20120326.jar
poi-ooxml-3.8-20120326.jar
poi-ooxml-schemas-3.8-20120326.jar
xmlbeans-2.3.0.jar
参考：
1. http://www.blogjava.net/vwpolo/archive/2009/09/16/295243.html
2. http://hacker-zxf.javaeye.com/blog/746546
3. http://zmx.javaeye.com/blog/622536
4. http://canfly2010.javaeye.com/blog/701726
package excel.poi.input;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.util.Iterator;import org.apache.poi.POITextExtractor;import org.apache.poi.extractor.ExtractorFactory;import org.apache.poi.hssf.usermodel.HSSFCell;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.openxml4j.exceptions.InvalidFormatException;import org.apache.poi.openxml4j.exceptions.OpenXML4JException;import org.apache.poi.poifs.filesystem.POIFSFileSystem;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFSheet;import org.apache.poi.xssf.usermodel.XSSFWorkbook;import org.apache.xmlbeans.XmlException;public class ReadExcel {/** * 读取office 2003 xls * @param filePath */ @SuppressWarnings({ "unchecked", "deprecation" })public void loadXls(String filePath){ try { InputStream input = new FileInputStream("D://test.xls"); POIFSFileSystem fs = new POIFSFileSystem(input); HSSFWorkbook wb = new HSSFWorkbook(fs); HSSFSheet sheet = wb.getSheetAt(0); // Iterate over each row in the sheet Iterator rows = sheet.rowIterator(); while (rows.hasNext()) { HSSFRow row = (HSSFRow) rows.next(); System.out.println("Row #" + row.getRowNum()); // Iterate over each cell in the row and print out the cell"s // content Iterator cells = row.cellIterator(); while (cells.hasNext()) { HSSFCell cell = (HSSFCell) cells.next(); System.out.println("Cell #" + cell.getCellNum()); switch (cell.getCellType()) { case HSSFCell.CELL_TYPE_NUMERIC: System.out.println(cell.getNumericCellValue()); break; case HSSFCell.CELL_TYPE_STRING: System.out.println(cell.getStringCellValue()); break; case HSSFCell.CELL_TYPE_BOOLEAN: System.out.println(cell.getBooleanCellValue()); break; case HSSFCell.CELL_TYPE_FORMULA: System.out.println(cell.getCellFormula()); break; default: System.out.println("unsuported sell type"); break; } } } } catch (IOException ex) { ex.printStackTrace(); } } /** * 读取xlsx文本 * @param filePath */ public void loadXlsxText(String filePath){ File inputFile = new File("D://test.xlsx"); try {POITextExtractor extractor = ExtractorFactory.createExtractor(inputFile);System.out.println(extractor.getText());} catch (InvalidFormatException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (OpenXML4JException e) {e.printStackTrace();} catch (XmlException e) {e.printStackTrace();} } /** * 读取office 2007 xlsx * @param filePath */ public void loadXlsx(String filePath){ // 构造 XSSFWorkbook 对象，strPath 传入文件路径 XSSFWorkbook xwb = null;try {xwb = new XSSFWorkbook("D://test.xlsx");} catch (IOException e) {System.out.println("读取文件出错");e.printStackTrace();} // 读取第一章表格内容 XSSFSheet sheet = xwb.getSheetAt(0); xwb.getSheetAt(1);// 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); 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(); System.out.print(cell + "/t"); } System.out.println(""); } } public static void main(String[] args) { ReadExcel readExcel =new ReadExcel(); readExcel.loadXlsx(""); }}