生成導出一段時間內所有周五的數據，生成列表和其對應的分sheet表格

工作中遇到 分頁導出（週五）數據表格，導出一個時段的週五的數據，分頁sheet表單和對應的列表。一段時間內每個週五在Excel中生成列表中的一條數據和一個表格。

這裏主要的記錄一下分頁sheet表單功能。

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


        /*
         * 分sheet導出查詢記錄
         */
        List<TimeDay> foolist=getStudentInfo();

        String templateDir = "src/main/java/templates/formInfoTemplate_outout.xls";
        String targetDir="e:/excel/export/testMultipleSheets.xls";
        List sheetNames = new ArrayList();
        for(int i=0;i<foolist.size();i++){
            TimeDay sa = (TimeDay)foolist.get(i);
            sheetNames.add(sa.getEveryFriday());

        }
        InputStream is = new BufferedInputStream(new FileInputStream(templateDir));
        XLSTransformer transformer = new XLSTransformer();
        HSSFWorkbook resultWorkBook = null;
        try {
            resultWorkBook = (HSSFWorkbook) transformer.transformMultipleSheetsList(is, foolist, sheetNames, "TimeDay", new HashMap(), 0);
        } catch (InvalidFormatException e) {
            e.printStackTrace();
        }
        OutputStream os = new BufferedOutputStream(new FileOutputStream(targetDir));
        try {
            resultWorkBook.write(os);
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

獲取當年1月1號~當前時間的數據

private static List<TimeDay> getStudentInfo() throws Exception {
        List<TimeDay> TimeDays = new ArrayList<TimeDay>();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String startDate = getCurrYearFirst()+"-01-01";
        String currenDate = sdf.format(new Date());
        List<String> allWeekly2 = getAllWeekly2(startDate, currenDate);
        if(allWeekly2 != null && allWeekly2.size() > 0){
            for (int aa = 0;aa < allWeekly2.size();aa++){
                TimeDays.add(new TimeDay(allWeekly2.get(aa)));
            }
        }
        return TimeDays;
    }

獲取當年的第一天日期

 public static String getCurrYearFirst(){
        Calendar currCal=Calendar.getInstance();
        int currentYear = currCal.get(Calendar.YEAR);
        return String.valueOf(currentYear);
    }

獲取起始時間startDate 至 結束時間endDate 時間段中所有的爲星期五的數據（沒有排除週末和節假日爲週五的情況）

public static List<String> getAllWeekly2(String startDate, String endDate) throws Exception {

        // 獲取兩個日期之間的所有日期
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        Calendar calBegin = Calendar.getInstance();
        calBegin.setTime(format.parse(startDate));
        Calendar calEnd = Calendar.getInstance();
        calEnd.setTime(format.parse(endDate));
        List<String> Datelist = new ArrayList<String>();

        while (format.parse(endDate).after(calBegin.getTime())) {
            calBegin.add(Calendar.DAY_OF_MONTH, 1);
            Date date = calBegin.getTime();
            SimpleDateFormat dateFm = new SimpleDateFormat("EEEE");
            String currSun = dateFm.format(date);
            if (currSun.equals("星期五")) {
                Calendar calendar = Calendar.getInstance();
                calendar.setTime(date);
                DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                String format1 = sdf.format(date);
                Datelist.add(format1);
            }
        }
        return Datelist;
    }

這裏記錄一下主要的方法，這裏就不介紹導出Excel的模板。

完整的流程可以參考：https://github.com/wxj01/inspection-demo.git