Excel03/07在线转HTML
Excel存在03和07版本，做过poi的都知道，这两个版本需要不同的类进行加载。比如03版本需要HSSFWorkbook,而07版本需要XSSFWorkbook，正是由于解析类的不同，造成了很多冗余代码，最好的解决方案是采用：Workbook方式，通过这样的形式：
File sourcefile = new File(excePath);
is = new FileInputStream(sourcefile);
Workbook wb = WorkbookFactory.create(is);//此WorkbookFactory在POI-3.10版本中使用需要添加dom4j
if (wb instanceof XSSFWorkbook) {
XSSFWorkbook xWb = (XSSFWorkbook) wb;
htmlExcel = ExcelConvertHTMLUtils.getExcelInfo(xWb,true);
}else if(wb instanceof HSSFWorkbook){
HSSFWorkbook hWb = (HSSFWorkbook) wb;
htmlExcel = ExcelConvertHTMLUtils.getExcelInfo(hWb,true);
}下面是一个帮助类，可以控制台实现Excel不同版本转HTML
package com.huixin.modellib.util;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPalette;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
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.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/**
*
* 将Excel转换为HTML在线解决方案
*/
public class ExcelConvertHTMLUtils {
/**
* 测试
* @param args
*/
public static void excelConvertHTMLHandle(String excePath, String htmlPath) {
InputStream is = null;
String htmlExcel = null;
try {
File sourcefile = new File(excePath);
is = new FileInputStream(sourcefile);
Workbook wb = WorkbookFactory.create(is);//此WorkbookFactory在POI-3.10版本中使用需要添加dom4j
if (wb instanceof XSSFWorkbook) {
XSSFWorkbook xWb = (XSSFWorkbook) wb;
htmlExcel = ExcelConvertHTMLUtils.getExcelInfo(xWb,true);
}else if(wb instanceof HSSFWorkbook){
HSSFWorkbook hWb = (HSSFWorkbook) wb;
htmlExcel = ExcelConvertHTMLUtils.getExcelInfo(hWb,true);
}
SaveHtml(htmlExcel, htmlPath);
} catch (Exception e) {
e.printStackTrace();
}finally{
if(is!=null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 将提取出来的html内容写入保存的路径中。
*
* @param strText
* @param strHtml
*/
public static boolean SaveHtml(String htmlTxt, String htmlPath) {
FileOutputStream out=null;
BufferedWriter write=null;
try {
File file = new File(htmlPath);
if(!file.exists()){
file = new File(file.getParent());
if(!file.exists()){
file.mkdirs();
}
}
out=new FileOutputStream(htmlPath, false);
write=new BufferedWriter(new OutputStreamWriter(out, "UTF-8"));
write.write(htmlTxt);
} catch (IOException e) {
e.printStackTrace();
}finally{
try{
if(write!=null){
write.close();
}
}catch(IOException ex){
ex.printStackTrace();
}
try{
if(out!=null){
out.close();
}
}catch(IOException e){
e.printStackTrace();
}
}
return true;
}
/**
* 程序入口方法
* @param filePath 文件的路径
* @param isWithStyle 是否需要表格样式 包含 字体 颜色 边框 对齐方式
* @return ...
字符串
*/
public String readExcelToHtml(String filePath , boolean isWithStyle){
InputStream is = null;
String htmlExcel = null;
try {
File sourcefile = new File(filePath);
is = new FileInputStream(sourcefile);
Workbook wb = WorkbookFactory.create(is);
if (wb instanceof XSSFWorkbook) {
XSSFWorkbook xWb = (XSSFWorkbook) wb;
htmlExcel = ExcelConvertHTMLUtils.getExcelInfo(xWb,isWithStyle);
}else if(wb instanceof HSSFWorkbook){
HSSFWorkbook hWb = (HSSFWorkbook) wb;
htmlExcel = ExcelConvertHTMLUtils.getExcelInfo(hWb,isWithStyle);
}
} catch (Exception e) {
e.printStackTrace();
}finally{
if(is!=null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return htmlExcel;
}
public static String getExcelInfo(Workbook wb,boolean isWithStyle){
StringBuffer sb = new StringBuffer("");
sb.append("");
sb.append("");
sb.append(" ");
Sheet sheet = wb.getSheetAt(0);//获取第一个Sheet的内容
String excelName=sheet.getSheetName();
sb.append(""+excelName+" ");
int lastRowNum = sheet.getLastRowNum();
Map map[] = getRowSpanColSpanMap(sheet);
sb.append("");
sb.append("");
sb.append("");
Row row = null; //兼容
Cell cell = null; //兼容
for (int rowNum = sheet.getFirstRowNum(); rowNum <= lastRowNum; rowNum++) {
row = sheet.getRow(rowNum);
if (row == null) {
sb.append(" ");
int lastColNum = row.getLastCellNum();
for (int colNum = 0; colNum < lastColNum; colNum++) {
cell = row.getCell(colNum);
if (cell == null) { //特殊情况 空白的单元格会返回null
sb.append(" ");
continue;
}
String stringValue = getCellValue(cell);
if (map[0].containsKey(rowNum + "," + colNum)) {
String pointString = map[0].get(rowNum + "," + colNum);
map[0].remove(rowNum + "," + colNum);
int bottomeRow = Integer.valueOf(pointString.split(",")[0]);
int bottomeCol = Integer.valueOf(pointString.split(",")[1]);
int rowSpan = bottomeRow - rowNum + 1;
int colSpan = bottomeCol - colNum + 1;
sb.append("");
if (stringValue == null || "".equals(stringValue.trim())) {
sb.append(" ");
} else {
// 将ascii码为160的空格转换为html下的空格（ ）
sb.append(stringValue.replace(String.valueOf((char) 160)," "));
}
sb.append(" ");
}
sb.append(" ");
}
sb.append("
");
sb.append("");
sb.append("");
return sb.toString();
}
private static Map[] getRowSpanColSpanMap(Sheet sheet) {
Map map0 = new HashMap();
Map map1 = new HashMap();
int mergedNum = sheet.getNumMergedRegions();
CellRangeAddress range = null;
for (int i = 0; i < mergedNum; i++) {
range = sheet.getMergedRegion(i);
int topRow = range.getFirstRow();
int topCol = range.getFirstColumn();
int bottomRow = range.getLastRow();
int bottomCol = range.getLastColumn();
map0.put(topRow + "," + topCol, bottomRow + "," + bottomCol);
// System.out.println(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;
}
/**
* 获取表格单元格Cell内容
* @param cell
* @return
*/
private static String getCellValue(Cell cell) {
String result = new String();
switch (cell.getCellType()) {
case Cell.CELL_TYPE_NUMERIC:// 数字类型
if (HSSFDateUtil.isCellDateFormatted(cell)) {// 处理日期格式、时间格式
SimpleDateFormat sdf = null;
if (cell.getCellStyle().getDataFormat() == HSSFDataFormat.getBuiltinFormat("h:mm")) {
sdf = new SimpleDateFormat("HH:mm");
} else {// 日期
sdf = new SimpleDateFormat("yyyy-MM-dd");
}
Date date = cell.getDateCellValue();
result = sdf.format(date);
} else if (cell.getCellStyle().getDataFormat() == 58) {
// 处理自定义日期格式：m月d日(通过判断单元格的格式id解决，id的值是58)
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
double value = cell.getNumericCellValue();
Date date = org.apache.poi.ss.usermodel.DateUtil.getJavaDate(value);
result = sdf.format(date);
} else {
double value = cell.getNumericCellValue();
CellStyle style = cell.getCellStyle();
DecimalFormat format = new DecimalFormat();
String temp = style.getDataFormatString();
// 单元格设置成常规
if (temp.equals("General")) {
format.applyPattern("#");
}
result = format.format(value);
}
break;
case Cell.CELL_TYPE_STRING:// String类型
result = cell.getRichStringCellValue().toString();
break;
case Cell.CELL_TYPE_BLANK:
result = "";
break;
default:
result = "";
break;
}
return result;
}
/**
* 处理表格样式
* @param wb
* @param sheet
* @param cell
* @param sb
*/
private static void dealExcelStyle(Workbook wb,Sheet sheet,Cell cell,StringBuffer sb){
CellStyle cellStyle = cell.getCellStyle();
if (cellStyle != null) {
short alignment = cellStyle.getAlignment();
sb.append("align='" + convertAlignToHtml(alignment) + "' ");//单元格内容的水平对齐方式
short verticalAlignment = cellStyle.getVerticalAlignment();
sb.append("valign='"+ convertVerticalAlignToHtml(verticalAlignment)+ "' ");//单元格中内容的垂直排列方式
if (wb instanceof XSSFWorkbook) {
XSSFFont xf = ((XSSFCellStyle) cellStyle).getFont();
short boldWeight = xf.getBoldweight();
sb.append("style='");
sb.append("font-weight:" + boldWeight + ";"); // 字体加粗
sb.append("font-size: " + xf.getFontHeight() / 2 + "%;"); // 字体大小
int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ;
sb.append("width:" + columnWidth + "px;");
XSSFColor xc = xf.getXSSFColor();
if (xc != null && !"".equals(xc)) {
sb.append("color:#" + xc.getARGBHex().substring(2) + ";"); // 字体颜色
}
XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor();
//System.out.println("************************************");
//System.out.println("BackgroundColorColor: "+cellStyle.getFillBackgroundColorColor());
//System.out.println("ForegroundColor: "+cellStyle.getFillForegroundColor());//0
//System.out.println("BackgroundColorColor: "+cellStyle.getFillBackgroundColorColor());
//System.out.println("ForegroundColorColor: "+cellStyle.getFillForegroundColorColor());
//String bgColorStr = bgColor.getARGBHex();
//System.out.println("bgColorStr: "+bgColorStr);
if (bgColor != null && !"".equals(bgColor)) {
sb.append("background-color:#" + bgColor.getARGBHex().substring(2) + ";"); // 背景颜色
}
sb.append(getBorderStyle(0,cellStyle.getBorderTop(), ((XSSFCellStyle) cellStyle).getTopBorderXSSFColor()));
sb.append(getBorderStyle(1,cellStyle.getBorderRight(), ((XSSFCellStyle) cellStyle).getRightBorderXSSFColor()));
sb.append(getBorderStyle(2,cellStyle.getBorderBottom(), ((XSSFCellStyle) cellStyle).getBottomBorderXSSFColor()));
sb.append(getBorderStyle(3,cellStyle.getBorderLeft(), ((XSSFCellStyle) cellStyle).getLeftBorderXSSFColor()));
}else if(wb instanceof HSSFWorkbook){
HSSFFont hf = ((HSSFCellStyle) cellStyle).getFont(wb);
short boldWeight = hf.getBoldweight();
short fontColor = hf.getColor();
sb.append("style='");
HSSFPalette palette = ((HSSFWorkbook) wb).getCustomPalette(); // 类HSSFPalette用于求的颜色的国际标准形式
HSSFColor hc = palette.getColor(fontColor);
sb.append("font-weight:" + boldWeight + ";"); // 字体加粗
sb.append("font-size: " + hf.getFontHeight() / 2 + "%;"); // 字体大小
String fontColorStr = convertToStardColor(hc);
if (fontColorStr != null && !"".equals(fontColorStr.trim())) {
sb.append("color:" + fontColorStr + ";"); // 字体颜色
}
int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ;
sb.append("width:" + columnWidth + "px;");
short bgColor = cellStyle.getFillForegroundColor();
hc = palette.getColor(bgColor);
String bgColorStr = convertToStardColor(hc);
if (bgColorStr != null && !"".equals(bgColorStr.trim())) {
sb.append("background-color:" + bgColorStr + ";"); // 背景颜色
}
sb.append( getBorderStyle(palette,0,cellStyle.getBorderTop(),cellStyle.getTopBorderColor()));
sb.append( getBorderStyle(palette,1,cellStyle.getBorderRight(),cellStyle.getRightBorderColor()));
sb.append( getBorderStyle(palette,3,cellStyle.getBorderLeft(),cellStyle.getLeftBorderColor()));
sb.append( getBorderStyle(palette,2,cellStyle.getBorderBottom(),cellStyle.getBottomBorderColor()));
}
sb.append("' ");
}
}
/**
* 单元格内容的水平对齐方式
* @param alignment
* @return
*/
private static String convertAlignToHtml(short alignment) {
String align = "left";
switch (alignment) {
case CellStyle.ALIGN_LEFT:
align = "left";
break;
case CellStyle.ALIGN_CENTER:
align = "center";
break;
case CellStyle.ALIGN_RIGHT:
align = "right";
break;
default:
break;
}
return align;
}
/**
* 单元格中内容的垂直排列方式
* @param verticalAlignment
* @return
*/
private static String convertVerticalAlignToHtml(short verticalAlignment) {
String valign = "middle";
switch (verticalAlignment) {
case CellStyle.VERTICAL_BOTTOM:
valign = "bottom";
break;
case CellStyle.VERTICAL_CENTER:
valign = "center";
break;
case CellStyle.VERTICAL_TOP:
valign = "top";
break;
default:
break;
}
return valign;
}
private static String convertToStardColor(HSSFColor hc) {
StringBuffer sb = new StringBuffer("");
if (hc != null) {
if (HSSFColor.AUTOMATIC.index == hc.getIndex()) {
return null;
}
sb.append("#");
for (int i = 0; i < hc.getTriplet().length; i++) {
sb.append(fillWithZero(Integer.toHexString(hc.getTriplet()[i])));
}
}
return sb.toString();
}
private static String fillWithZero(String str) {
if (str != null && str.length() < 2) {
return "0" + str;
}
return str;
}
static String[] bordesr={"border-top:","border-right:","border-bottom:","border-left:"};
static String[] borderStyles={"solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid","solid","solid","solid","solid"};
private static String getBorderStyle( HSSFPalette palette ,int b,short s, short t){
if(s==0)return bordesr[b]+borderStyles[s]+"#d0d7e5 1px;";;
String borderColorStr = convertToStardColor( palette.getColor(t));
borderColorStr=borderColorStr==null|| borderColorStr.length()<1?"#000000":borderColorStr;
return bordesr[b]+borderStyles[s]+borderColorStr+" 1px;";
}
private static String getBorderStyle(int b,short s, XSSFColor xc){
if(s==0)return bordesr[b]+borderStyles[s]+"#d0d7e5 1px;";;
if (xc != null && !"".equals(xc)) {
String borderColorStr = xc.getARGBHex();//t.getARGBHex();
borderColorStr=borderColorStr==null|| borderColorStr.length()<1?"#000000":borderColorStr.substring(2);
return bordesr[b]+borderStyles[s]+borderColorStr+" 1px;";
}
return "";
}
}