尽管是转别人的（忘了哪转过来的了），但此处标为原创不是为了提高訪问量，也不是为了其它。仅仅是纯粹的认为有实际用途。希望能给很多其它有此需求的人看到并能帮到他们就足够了

所需jar包：jxl.jar

package cn.com.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;import jxl.Cell;
import jxl.Range;
import jxl.Sheet;
import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.CellFormat;
import jxl.format.Colour;
import jxl.format.VerticalAlignment;public class ExcelTransformHtml {/*** 获取Excel文件转换为HTML后的字符串，仅仅支持后缀为xls的Excel（主调方法）* @param sourcefile <span style="font-family: Arial, Helvetica, sans-serif;"> </span>Excel文件* @return 返回Excel转换后的HTML字符串* @throws Exception*/public static String getExcelInfo(File sourcefile) throws Exception {StringBuffer sb = new StringBuffer();InputStream is = new FileInputStream(sourcefile);Workbook rwb = Workbook.getWorkbook(is);Sheet sheet = rwb.getSheet(0);int colnum = sheet.getColumns();int rownum = sheet.getRows();Map<String, String> map[] = getRowSpanColSpanMap(sheet);sb.append("<table border='1' cellspacing='0'>");for (int row = 0; row < rownum; row++) {sb.append("<tr>");for (int col = 0; col < colnum; col++) {Cell cell = sheet.getCell(col, row);String content = cell.getContents();CellFormat cellFormat = cell.getCellFormat();if (map[0].containsKey(row + "," + col)) {String pointString = map[0].get(row + "," + col);map[0].remove(row + "," + col);int bottomeRow = Integer.valueOf(pointString.split(",")[0]);int bottomeCol = Integer.valueOf(pointString.split(",")[1]);int rowSpan = bottomeRow - row + 1;int colSpan = bottomeCol - col + 1;sb.append("<td rowspan= '" + rowSpan + "' colspan= '" + colSpan + "' ");} else if (map[1].containsKey(row + "," + col)) {map[1].remove(row + "," + col);continue;} else {sb.append("<td ");}if (cellFormat != null) {Alignment alignment = cellFormat.getAlignment();sb.append("align='" + convertToHtmlGrammer(alignment) + "' ");VerticalAlignment verticalAlignment = cellFormat.getVerticalAlignment();sb.append("valign='" + convertToHtmlGrammer(verticalAlignment) + "' ");// sb.append("style='color:" + convertToHtmlGrammer(cellFormat.getFont().getColour()) + ";");  //Colour bgcolour = cellFormat.getBackgroundColour();// sb.append("background-color:" + convertToHtmlGrammer(bgcolour) + ";");  //// Colour bottomColour = cellFormat.getBorderColour(Border.BOTTOM);  //// Colour leftColour = cellFormat.getBorderColour(Border.LEFT);// Colour rightColour = cellFormat.getBorderColour(Border.RIGHT);// Colour topColour = cellFormat.getBorderColour(Border.TOP);// System.out.print("bottomColour:" +// bottomColour.getDescription());// System.out.print(" leftColour:" +// leftColour.getDescription());// System.out.print(" rightColour:" +// rightColour.getDescription());// System.out.println(" topColour:" +// topColour.getDescription());// sb.append("border-color:" + convertToHtmlGrammer(bottomColour) + ";");  // sb.append("' ");}sb.append(">");if (content == null || "".equals(content.trim())) {sb.append("   ");} else {sb.append(content);}sb.append("</td>");}sb.append("</tr>");}sb.append("</table>");rwb.close();is.close();return sb.toString();}@SuppressWarnings("unchecked")private static Map<String, String>[] getRowSpanColSpanMap(Sheet sheet) {Map<String, String> map0 = new HashMap<String, String>();Map<String, String> map1 = new HashMap<String, String>();Range[] range = sheet.getMergedCells();for (int i = 0; i < range.length; i++) {Cell topCell = range[i].getTopLeft();Cell bottomCell = range[i].getBottomRight();int topRow = topCell.getRow();int topCol = topCell.getColumn();int bottomRow = bottomCell.getRow();int bottomCol = bottomCell.getColumn();map0.put(topRow + "," + topCol, bottomRow + "," + bottomCol);int tempRow = topRow;while (tempRow <= bottomRow) {int tempCol = topCol;while (tempCol <= bottomCol) {map1.put(tempRow + "," + tempCol, "");tempCol++;}tempRow++;}map1.remove(topRow + "," + topCol);}Map[] map = { map0, map1 };return map;}private static String convertToHtmlGrammer(Alignment alignment) {String align = "left";switch (alignment.getValue()) {case 1:align = "left";break;case 2:align = "center";break;case 3:align = "right";break;case 5:align = "justify";break;default:break;}return align;}private static String convertToHtmlGrammer(VerticalAlignment verticalAlignment) {String valign = "middle";switch (verticalAlignment.getValue()) {case 1:valign = "middle";break;case 2:valign = "bottom";break;case 3:valign = "top";break;default:break;}return valign;}/*private static String convertToHtmlGrammer(Colour colour) {StringBuffer sb = new StringBuffer("");if (colour != null && !"default background".equalsIgnoreCase(colour.getDescription())) {sb.append("#");sb.append(fillWithZero(Integer.toHexString(colour.getDefaultRGB().getRed())));sb.append(fillWithZero(Integer.toHexString(colour.getDefaultRGB().getGreen())));sb.append(fillWithZero(Integer.toHexString(colour.getDefaultRGB().getBlue())));}return sb.toString();}*/private static String fillWithZero(String str) {if (str != null && str.length() < 2) {return "0" + str;}return str;}
}

本文转自mfrbuaa博客园博客，原文链接：http://www.cnblogs.com/mfrbuaa/p/5204461.html，如需转载请自行联系原作者