Adding Java, read the Excel formula

Excel spreadsheet when the operation to process the data with the formula, the operational data may be created by a formula, or to acquire information by reading data sources formula. In this paper, through the Java code to demonstrate ways to create and read a formula in Excel. This uses Excel Java class libraries (Free Spire.XLS for Java free version), the official website to download the file to obtain, extract, the lib folder under the jar files into Java programs; or by downloading maven repository and import. Import results were as follows:

1. Create a formula

import com.spire.xls.*;

public class AddFormula {
    public static void main(String[] args) {
        //创建Workbook对象
        Workbook wb = new Workbook();

        //获取第一个工作表
        Worksheet sheet = wb.getWorksheets().get(0);

        //声明两个变量
        int currentRow = 1;
        String currentFormula = null;

        //设置列宽
        sheet.setColumnWidth(1, 32);
        sheet.setColumnWidth(2, 16);

        //写入用于测试的数据到单元格
        sheet.getCellRange(currentRow,1).setValue("测试数据：");
        sheet.getCellRange(currentRow,2).setNumberValue(1);
        sheet.getCellRange(currentRow,3).setNumberValue(2);
        sheet.getCellRange(currentRow,4).setNumberValue(3);
        sheet.getCellRange(currentRow,5).setNumberValue(4);
        sheet.getCellRange(currentRow,6).setNumberValue(5);

        //写入文本
        currentRow += 2;
        sheet.getCellRange(currentRow,1).setValue("公式：") ; ;
        sheet.getCellRange(currentRow,2).setValue("结果：");

        //设置单元格格式
        CellRange range = sheet.getCellRange(currentRow,1,currentRow,2);
        range.getStyle().getFont().isBold(true);
        range.getStyle().setKnownColor(ExcelColors.LightGreen1);
        range.getStyle().setFillPattern(ExcelPatternType.Solid);
        range.getStyle().getBorders().getByBordersLineType(BordersLineType.EdgeBottom).setLineStyle(LineStyleType.Medium);

        //算数运算
        currentFormula = "=1/2+3*4";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //日期函数
        currentFormula = "=TODAY()";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);
        sheet.getCellRange(currentRow,2).getStyle().setNumberFormat("YYYY/MM/DD");

        //时间函数
        currentFormula = "=NOW()";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);
        sheet.getCellRange(currentRow,2).getStyle().setNumberFormat("H:MM AM/PM");

        //IF函数
        currentFormula = "=IF(B1=5,\"Yes\",\"No\")";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //PI函数
        currentFormula = "=PI()";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //三角函数
        currentFormula = "=SIN(PI()/6)";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //计数函数
        currentFormula = "=Count(B1:F1)";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //最大值函数
        currentFormula = "=MAX(B1:F1)";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //平均值函数
        currentFormula = "=AVERAGE(B1:F1)";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //求和函数
        currentFormula = "=SUM(B1:F1)";
        sheet.getCellRange(++currentRow,1).setText(currentFormula);
        sheet.getCellRange(currentRow,2).setFormula(currentFormula);

        //保存文档
        wb.saveToFile("AddFormulas.xlsx",FileFormat.Version2013);
        wb.dispose();
    }
}

Create a formula results:

2. Read the formula

import com.spire.xls.*;

public class ReadFormula {
    public static void main(String[] args) {
        //加载Excel文档
        Workbook wb = new Workbook();
        wb.loadFromFile("AddFormulas.xlsx");

        //获取第一个工作表
        Worksheet sheet = wb.getWorksheets().get(0);

        //遍历B1到B13的单元格
        for (Object cell: sheet.getCellRange("B1:B13"))
        {
            CellRange cellRange = (CellRange)cell;

            //判断单元格是否含有公式
            if (cellRange.hasFormula())
            {
                //打印单元格及公式
                String certainCell = String.format("单元格[%d, %d]含有公式：", cellRange.getRow(), cellRange.getColumn());
                System.out.println(certainCell + cellRange.getFormula());
            }
        }
    }
}

Formula read results: