读取excel数据，并进行统计输出

package cn.cnnic.ops;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
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;

public class DutyRosterVerification {

    public static void main(String[] args) {
        try {
//            getDataFromExcel("D:\\soft\\eclipse\\workspace\\DutyRoster\\src\\20160726_2016年8月份值班表.xlsx");
            getDataFromExcel("D:\\Data\\xxx.xlsx");
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InvalidFormatException e) {
            e.printStackTrace();
        }
    }

    public static void getDataFromExcel(String file) throws FileNotFoundException, IOException, InvalidFormatException {
        InputStream ins = null;
        Workbook wb = null;
        ins = new FileInputStream(new File(file));
        wb = WorkbookFactory.create(ins);
        ins.close();
        Sheet sheet = wb.getSheetAt(0);
        int rowNum = sheet.getLastRowNum();

        Map<String, String> dutyMap = new HashMap<String, String>();
        dutyMap.put("1", "***");
        dutyMap.put("2", "***");
        dutyMap.put("3", "***");
        dutyMap.put("4", "***");
        dutyMap.put("5", "***");
        dutyMap.put("6", "***");
        dutyMap.put("7", "***");

        Map<String, Integer> dayShift = new HashMap<String, Integer>();
        Map<String, Integer> nightShift = new HashMap<String, Integer>();

        // System.out.println(sheet.getRow(3).getCell(2).toString().split("\n")[0]);
        for (int rowIndex = 0; rowIndex <= rowNum; rowIndex++) {
            Row rowCurrent = sheet.getRow(rowIndex);
            if (rowIndex >= 3 && (rowIndex - 3) % 4 == 0) {
                for (int colIndex = 2; colIndex <= 8; colIndex++) {
                    Cell cellCurrent = rowCurrent.getCell(colIndex);
                    if (cellCurrent != null) {
                        cellCurrent.setCellType(Cell.CELL_TYPE_STRING);
                    }
                    String team = cellCurrent.toString().trim().split("\n")[0];
                    String[] teamPerson = team.split(",");
                    for (int teamIndex = 0; teamIndex < teamPerson.length; teamIndex++) {
                        if (dayShift.get(teamPerson[teamIndex]) == null) {
                            dayShift.put(teamPerson[teamIndex], 1);
                        } else {
                            dayShift.put(teamPerson[teamIndex], dayShift.get(teamPerson[teamIndex]) + 1);
                        }
                    }
                }
            } else if (rowIndex >= 4 && (rowIndex - 4) % 4 == 0) {
                for (int colIndex = 2; colIndex <= 8; colIndex++) {
                    Cell cellCurrent = rowCurrent.getCell(colIndex);
                    if (cellCurrent != null) {
                        cellCurrent.setCellType(Cell.CELL_TYPE_STRING);
                    }
                    String team = cellCurrent.toString().trim().split("\n")[0];
                    String[] teamPerson = team.split(",");
                    for (int teamIndex = 0; teamIndex < teamPerson.length; teamIndex++) {
                        if (nightShift.get(teamPerson[teamIndex]) == null) {
                            nightShift.put(teamPerson[teamIndex], 1);
                        } else {
                            nightShift.put(teamPerson[teamIndex], nightShift.get(teamPerson[teamIndex]) + 1);
                        }
                    }
                }
            }
        }

        outputSort("白班", dayShift, dutyMap);
        outputSort("夜班", nightShift, dutyMap);
    }

    /**
     *
     * @param str
     *            说明白班还是夜班
     * @param map
     *            员工及值班个数HashMap
     * @param mapDim
     *            值班维表
     */
    public static void outputSort(String str, Map<String, Integer> map, Map<String, String> mapDim) {

        List<Map.Entry<String, Integer>> list = new ArrayList<Map.Entry<String, Integer>>(map.entrySet());
        Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {
            @Override
            public int compare(Entry<String, Integer> o1, Entry<String, Integer> o2) {
                return -(o1.getValue() - o2.getValue());
            }
        });

        System.out.println("===================" + str + "======================");
        for (int index = 0; index < list.size(); index++) {
            System.out.println(list.get(index).getKey() + "==" + mapDim.get(list.get(index).getKey()) + "=="
                    + list.get(index).getValue());
        }
    }

    /**
     *
     * @param str
     *            说明白班还是夜班
     * @param map
     *            员工及值班个数HashMap
     * @param mapDim
     *            值班维表
     */
    public static void output(String str, Map<String, Integer> map, Map<String, String> mapDim) {
        System.out.println("===================" + str + "======================");
        Set<Entry<String, Integer>> dayEntities = map.entrySet();
        for (Entry<String, Integer> en : dayEntities) {
            System.out.println(en.getKey() + "---" + mapDim.get(en.getKey()) + "---" + en.getValue());
        }
    }
}