poi 온라인 미리 보기 excel 멀 티 시트 처리

18360 단어 자바
package com.yutu.platform.otherPreview;

import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.*;
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;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.io.*;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

/**
 * Excel     Html
 * Created by wanggang on 2017/7/21.
 * @author wanggang
 * @version 1.0
 */

@Service
public class Excel2HtmlService {
	@Value("${web.file.static.path}") 
	private String document;//     
	@Value("${web.project.path}") 
	private String projectPath;//    
	
	@Value("${local.file.path}") 
	private String docPath;//     
	
	@Value("${local.file.path}") 
	private String targetFilePath;//     
	
    /**
     * Excel   html
     * @return 
     */
	
    public String excel2Html(String sourceFileName) throws IOException {
        //   excel     
        String excelPath = docPath+"file/";
        //        
        String excelName = sourceFileName.substring(0,sourceFileName.indexOf("."));
        // *.html    
        String targetFileName = targetFilePath+"html/"+excelName+"/";
        File targetFile = new File(targetFileName);
        if(!targetFile.exists()){
            targetFile.mkdirs();
        }
        //       
        InputStream is = null;
        //        
        FileOutputStream outputStream = null;
        //    html
        String htmlExcel = null;
        try {
            is = new FileInputStream(new File(docPath+"file/"+sourceFileName));
            Workbook wb = WorkbookFactory.create(is);
            //   Excel xls  xlsx  
            if (wb instanceof XSSFWorkbook) { //HSSFWorkbook(xls)  XSSFWorkbook (xlsx)
                XSSFWorkbook xWb = (XSSFWorkbook) wb;
                htmlExcel = getExcelInfo(xWb,true);
            }else if(wb instanceof HSSFWorkbook){
                HSSFWorkbook hWb = (HSSFWorkbook) wb;
                htmlExcel = getExcelInfo(hWb,true);
            }
            //       html 
            File html = new File(targetFileName+excelName+".html");
            if(html.exists()){
                html.mkdirs();
            }
            //         
            outputStream = new FileOutputStream(html);
            outputStream.write(htmlExcel.getBytes("gbk"));
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {
                if(is!=null){
                    is.close();
                }
                if(outputStream!=null){
                    outputStream.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
		return document+"html/"+excelName+"/"+excelName+".html";
    }
    /**
     *   Excel   Html
     * @param filePath      
     * @param isWithStyle                          
     * @return ...
*/ 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 = getExcelInfo(xWb,isWithStyle); }else if(wb instanceof HSSFWorkbook){ HSSFWorkbook hWb = (HSSFWorkbook) wb; htmlExcel = getExcelInfo(hWb,isWithStyle); } } catch (Exception e) { e.printStackTrace(); }finally{ try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return htmlExcel; } /** * Excel * @param wb * @param isWithStyle * @return */ public String getExcelInfo(Workbook wb,boolean isWithStyle){ StringBuffer sb = new StringBuffer();// html sb.append(""); //html sb.append("" +""); sb.append("" +""); sb.append(""); sb.append("
    "); for(int i = 0; i < wb.getNumberOfSheets(); i++){// String sheetName = wb.getSheetName(i); if(i==0){ sb.append("
  • "+sheetName+"
  • "); }else{ sb.append("
  • "+sheetName+"
  • "); } } sb.append("
"); for(int i = 0; i < wb.getNumberOfSheets(); i++){ Sheet sheet = wb.getSheetAt(i);// Sheet sb.append("
"); int lastRowNum = sheet.getLastRowNum();// Map map[] = getRowSpanColSpanMap(sheet); sb.append(""); Row row = null; Cell cell = null; for (int rowNum = sheet.getFirstRowNum(); rowNum <= lastRowNum; rowNum++) {// row = sheet.getRow(rowNum); if (row == null) { sb.append(""); continue; } sb.append(""); int lastColNum = row.getLastCellNum();// for (int colNum = 0; colNum < lastColNum; colNum++) {// cell = row.getCell(colNum); if (cell == null) { // 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(""); } sb.append(""); } sb.append("
 
 "); if (stringValue == null || "".equals(stringValue.trim())) { sb.append("   "); } else { // ascii 160 html ( ) sb.append(stringValue.replace(String.valueOf((char) 160)," ")); } sb.append("
"); sb.append("
"); } sb.append("
"); return sb.toString(); } /** * * @param sheet * @return */ private 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; } /** * Cell * @param cell * @return */ private String getCellValue(Cell cell) { String result = new String(); switch (cell.getCellType()) { case Cell.CELL_TYPE_NUMERIC:// if (HSSFDateUtil.isCellDateFormatted(cell)) {// 、 SimpleDateFormat sdf = null; if (cell.getCellStyle().getDataFormat() == HSSFDataFormat.getBuiltinFormat("h:mm")) { sdf = new SimpleDateFormat("HH:mm"); } else {// sdf = new SimpleDateFormat("yyyy-MM-dd"); } Date date = cell.getDateCellValue(); result = sdf.format(date); } else if (cell.getCellStyle().getDataFormat() == 58) { // :m d ( id ,id 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(); // System.out.println(temp); // if ("General".equals(temp)) { // if (temp.equals("General")) { format.applyPattern("#"); } result = format.format(value); } break; case Cell.CELL_TYPE_STRING:// String result = cell.getRichStringCellValue().toString(); break; case Cell.CELL_TYPE_BLANK: result = ""; break; default: result = ""; break; } return result; } /** * * @param wb * @param sheet * @param cell * @param sb */ private 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) + "' ");// short verticalAlignment = cellStyle.getVerticalAlignment(); sb.append("valign='"+ convertVerticalAlignToHtml(verticalAlignment)+ "' ");// if (wb instanceof XSSFWorkbook) { XSSFFont xf = ((XSSFCellStyle) cellStyle).getFont(); short boldWeight = xf.getBoldweight(); sb.append("style='"); sb.append("font-weight:" + boldWeight + ";"); // sb.append("font-size: " + xf.getFontHeight() / 2 + "%;"); // 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) + ";"); // } XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor(); if (bgColor != null && !"".equals(bgColor)) { sb.append("background-color:#" + bgColor.getARGBHex().substring(2) + ";"); // } 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(); // HSSFPalette HSSFColor hc = palette.getColor(fontColor); sb.append("font-weight:" + boldWeight + ";"); // sb.append("font-size: " + hf.getFontHeight() / 2 + "%;"); // String fontColorStr = convertToStardColor(hc); if (fontColorStr != null && !"".equals(fontColorStr.trim())) { sb.append("color:" + fontColorStr + ";"); // } 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 + ";"); // } 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("' "); } } /** * * @param alignment * @return */ private 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; } /** * * @param verticalAlignment * @return */ private 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 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 String fillWithZero(String str) { if (str != null && str.length() < 2) { return "0" + str; } return str; } String[] bordesr={"border-top:","border-right:","border-bottom:","border-left:"}; String[] borderStyles={"solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid","solid","solid","solid","solid"}; private 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 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 ""; } }

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