借助于apathe的poi.jar，由于上傳文件不支持.jar所以請下載后將文件改為.jar，在應用程序中添加poi.jar包，并將需要讀取的excel文件放入根目錄即可

本例使用java來讀取excel的內容并展出出結果，代碼如下：

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import java.io.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.text.DecimalFormat;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Arrays;import java.util.Date;import java.util.List;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;public class ExcelOperate {public static void main(String[] args) throws Exception {File file = new File("ExcelDemo.xls");String[][] result = getData(file, 1);int rowLength = result.length;for(int i=0;i<rowLength;i++) {for(int j=0;j<result[i].length;j++) {System.out.print(result[i][j]+"\t\t");}System.out.println();}}/*** 讀取Excel的內容，第一維數組存儲的是一行中格列的值，二維數組存儲的是多少個行* @param file 讀取數據的源Excel* @param ignoreRows 讀取數據忽略的行數，比喻行頭不需要讀入 忽略的行數為1* @return 讀出的Excel中數據的內容* @throws FileNotFoundException* @throws IOException*/public static String[][] getData(File file, int ignoreRows)throws FileNotFoundException, IOException {List<String[]> result = new ArrayList<String[]>();int rowSize = 0;BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));// 打開HSSFWorkbookPOIFSFileSystem fs = new POIFSFileSystem(in);HSSFWorkbook wb = new HSSFWorkbook(fs);HSSFCell cell = null;for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {HSSFSheet st = wb.getSheetAt(sheetIndex);// 第一行為標題，不取for (int rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {HSSFRow row = st.getRow(rowIndex);if (row == null) {continue;}int tempRowSize = row.getLastCellNum() + 1;if (tempRowSize > rowSize) {rowSize = tempRowSize;}String[] values = new String[rowSize];Arrays.fill(values, "");boolean hasValue = false;for (short columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {String value = "";cell = row.getCell(columnIndex);if (cell != null) {// 注意：一定要設成這個，否則可能會出現亂碼cell.setEncoding(HSSFCell.ENCODING_UTF_16);switch (cell.getCellType()) {case HSSFCell.CELL_TYPE_STRING:value = cell.getStringCellValue();break;case HSSFCell.CELL_TYPE_NUMERIC:if (HSSFDateUtil.isCellDateFormatted(cell)) {Date date = cell.getDateCellValue();if (date != null) {value = new SimpleDateFormat("yyyy-MM-dd").format(date);} else {value = "";}} else {value = new DecimalFormat("0").format(cell.getNumericCellValue());}break;case HSSFCell.CELL_TYPE_FORMULA:// 導入時如果為公式生成的數據則無值if (!cell.getStringCellValue().equals("")) {value = cell.getStringCellValue();} else {value = cell.getNumericCellValue() + "";}break;case HSSFCell.CELL_TYPE_BLANK:break;case HSSFCell.CELL_TYPE_ERROR:value = "";break;case HSSFCell.CELL_TYPE_BOOLEAN:value = (cell.getBooleanCellValue() == true ? "Y": "N");break;default:value = "";}}if (columnIndex == 0 && value.trim().equals("")) {break;}values[columnIndex] = rightTrim(value);hasValue = true;}if (hasValue) {result.add(values);}}}in.close();String[][] returnArray = new String[result.size()][rowSize];for (int i = 0; i < returnArray.length; i++) {returnArray[i] = (String[]) result.get(i);}return returnArray;}/*** 去掉字符串右邊的空格* @param str 要處理的字符串* @return 處理后的字符串*/public static String rightTrim(String str) {if (str == null) {return "";}int length = str.length();for (int i = length - 1; i >= 0; i--) {if (str.charAt(i) != 0x20) {break;}length--;}return str.substring(0, length);}}

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