package com.liuf.util;

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

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.HashMap;

import java.util.List;

import java.util.Map;

import org.apache.poi.POIXMLDocumentPart;

import org.apache.poi.hssf.usermodel.HSSFCell;

import org.apache.poi.hssf.usermodel.HSSFClientAnchor;

import org.apache.poi.hssf.usermodel.HSSFDateUtil;

import org.apache.poi.hssf.usermodel.HSSFPicture;

import org.apache.poi.hssf.usermodel.HSSFPictureData;

import org.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFShape;

import org.apache.poi.hssf.usermodel.HSSFSheet;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import org.apache.poi.poifs.filesystem.POIFSFileSystem;

import org.apache.poi.xssf.usermodel.XSSFClientAnchor;

import org.apache.poi.xssf.usermodel.XSSFDrawing;

import org.apache.poi.xssf.usermodel.XSSFPicture;

import org.apache.poi.xssf.usermodel.XSSFPictureData;

import org.apache.poi.xssf.usermodel.XSSFShape;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;

/**

 * 从excel中取出图片的功能代码

 * @author Administrator

 * 2019-11-26

 */

public class ExcelImageUtil {

    public static void main(String[] args) throws Exception {

        File file = new File("D:"+ File.separator +"123.xls");

        getData(file,0);

    }

       /**

     * 读取Excel的内容，第一维数组存储的是一行中格列的值，二维数组存储的是多少个行

     * @param file 读取数据的源Excel

     * @param ignoreRows 读取数据忽略的行数，比喻行头不需要读入 忽略的行数为1

     * @return 读出的Excel中数据的内容

     * @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));

       // 打开HSSFWorkbook

       POIFSFileSystem fs = new POIFSFileSystem(in);

       HSSFWorkbook wb = new HSSFWorkbook(fs);

　　　　//1.读出的Excel中的图片

       Map<String, HSSFPictureData>  maplist=null;

       HSSFSheet sheet =null;

       sheet = wb.getSheetAt(0);

           // 支持word03的方法获取图片

       if (file.getPath().endsWith(".xls")) {

           maplist = getPictures((HSSFSheet) sheet);

       }

       try {

            printImg(maplist);

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

       //2.读出的Excel中数据的内容

       HSSFCell cell = null;

       for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {

           HSSFSheet st = wb.getSheetAt(sheetIndex);

           // 第一行为标题，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：一定要设成这个，否则可能会出现乱码

                     //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:

                         // 导入时如果为公式生成的数据则无值

                         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;

    }

    /**

     * 去掉字符串右边的空格

     * @param str 要处理的字符串

     * @return 处理后的字符串

     */

     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);

    }

     /**

       * 获取图片和位置 (xls)测试过

       * @param sheet

       * @return

       * @throws IOException

       */

      public static Map<String, HSSFPictureData> getPictures(HSSFSheet sheet) throws IOException {

            Map<String, HSSFPictureData> map = new HashMap<String, HSSFPictureData>();

            List<HSSFShape> list = sheet.getDrawingPatriarch().getChildren();

            for (HSSFShape shape : list) {

                if (shape instanceof HSSFPicture) {

                    HSSFPicture picture = (HSSFPicture) shape;

                    HSSFClientAnchor cAnchor = (HSSFClientAnchor) picture.getAnchor();

                    HSSFPictureData pdata = picture.getPictureData();

                    String key = cAnchor.getRow1() + "-" + cAnchor.getCol1(); // 行号-列号

                    map.put(key, pdata);

                }

            }

            return map;

        }

    //图片写出

      public static void printImg(Map<String, HSSFPictureData> maplist) throws IOException {  

            //for (Map<String, PictureData> map : sheetList) {

                Object key[] = maplist.keySet().toArray();

                for (int i = 0; i < maplist.size(); i++) {

                    // 获取图片流

                    HSSFPictureData pic = maplist.get(key[i]);

                    // 获取图片索引

                    String picName = key[i].toString();  

                    byte[] data = pic.getData();  

               //图片保存路径

                    FileOutputStream out = new FileOutputStream("D:\\img\\pic" + picName + ".jpg");

                    out.write(data);

                    out.close();

                }

           // }  

        }

}