002-poi-excel-導出設置單元格數據校驗規則、篩選功能

一、數據驗證概述

推薦以下操作在2007之后操作

1.1、查看excel的數據驗證

1、進入

　　

2、設置規則

　　　　　　

通過驗證條件允許，可以看到是每個單元格默認只成立一種條件

1.2、POI代碼開發-數據驗證

1.2.1、兩個數之間

    public void excelRuleNumberBetween(Sheet sheet, int min, int max, int firstRow, int lastRow, int firstCol, int lastCol){
        DataValidationHelper helper = sheet.getDataValidationHelper();
        CellRangeAddressList addressList = new CellRangeAddressList(firstRow, lastRow, firstCol, lastCol);//設置行列范圍
        //設置數據
        DataValidationConstraint constraint = helper.createIntegerConstraint(DataValidationConstraint.OperatorType.BETWEEN,
                String.valueOf(min),String.valueOf(max));
        DataValidation dataValidation = helper.createValidation(constraint, addressList);
        dataValidation.createErrorBox("輸入值類型或大小有誤", String.format("請輸入%s~%s之間的數值",min,max));
        //處理Excel兼容性問題
        if(dataValidation instanceof XSSFDataValidation) {
            dataValidation.setSuppressDropDownArrow(true);
            dataValidation.setShowErrorBox(true);
        }else {
            dataValidation.setSuppressDropDownArrow(false);
        }
        sheet.addValidationData(dataValidation);
    }

1.2.2、選擇【序列】

    public void excelRuleSelect(Sheet sheet, String[] rule, int firstRow, int lastRow, int firstCol, int lastCol) {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        CellRangeAddressList addressList = new CellRangeAddressList(firstRow, lastRow, firstCol, lastCol);
        DataValidationConstraint constraint = helper.createExplicitListConstraint(rule);
        DataValidation dataValidation = helper.createValidation(constraint, addressList);
        dataValidation.createErrorBox("輸入有誤", "請選擇下拉參數");
        if (dataValidation instanceof XSSFDataValidation) {
            dataValidation.setSuppressDropDownArrow(true);
            dataValidation.setShowErrorBox(true);
        } else {
            dataValidation.setSuppressDropDownArrow(false);
        }

        sheet.addValidationData(dataValidation);
    }

1.2.3、列唯一

　　使用excel設置

　　　　

　　POI設置

    public void excelRuleUniqueue(Sheet sheet, int firstRow, int lastRow, int firstCol, int lastCol) {
        Row row = sheet.getRow(0);
        Cell cell = row.getCell(firstCol);
        String r = ((XSSFCell) cell).getCTCell().getR();
        r = r.substring(0, 1);
        DataValidationHelper helper = sheet.getDataValidationHelper();
        CellRangeAddressList addressList = new CellRangeAddressList(firstRow, lastRow, firstCol, lastCol);
        //唯一
        DataValidationConstraint constraint = helper.createCustomConstraint(MessageFormat.format("COUNTIF({0}:{0},{0}2)=1",r));
        DataValidation dataValidation = helper.createValidation(constraint, addressList);
        dataValidation.createErrorBox("錯誤：", "賦值屬性列不允許重復");
        dataValidation.setShowErrorBox(true);
        dataValidation.setEmptyCellAllowed(true);
        dataValidation.setSuppressDropDownArrow(true);
        dataValidation.setShowPromptBox(true);
        dataValidation.setErrorStyle(DataValidation.ErrorStyle.STOP);

        sheet.addValidationData(dataValidation);
    }

二、其他

2.1、列篩選

查看excel實現

　　

POI代碼　　

Sheet sheetCreat = wbCreat.createSheet(sheet.getSheetName());
CellRangeAddress c = CellRangeAddress.valueOf(CELL_RANGE_ADDRESS);
sheetCreat.setAutoFilter(c);