[alibaba/easyexcel]数据经过导入-处理-导出后精度丢失

异常代码

public class Test5 {
    public static void main(String[] args) {
        String fileName = "g://" + "demo" + File.separator + "demo.xlsx";
        List<DemoData> list = EasyExcel.read(fileName, DemoData.class, null).sheet().doReadSync();
        List<DemoData1> result = new ArrayList<>();
        for(DemoData demoData:list){
            if(demoData.getCol2() != null){
                demoData.setCol2(demoData.getCol2().add(new BigDecimal("500000000000.123456")));

                DemoData1 demoData1= new DemoData1();
                demoData1.setCol1(demoData.getCol1());
                demoData1.setCol2(demoData.getCol2().toString());
                result.add(demoData1);
            }
        }
        //case1
        EasyExcel.write("g://" + "demo" + File.separator + "demoTemp1.xlsx",DemoData.class).sheet().doWrite(list);
        //case2
        EasyExcel.write("g://" + "demo" + File.separator + "demoTemp2.xlsx",DemoData1.class).sheet().doWrite(result);
    }
}
public class DemoData {
    @ExcelProperty("序号")
    private String col1;
    @ExcelProperty("数字1")
    private BigDecimal col2;

    public String getCol1() {
        return col1;
    }

    public void setCol1(String col1) {
        this.col1 = col1;
    }

    public BigDecimal getCol2() {
        return col2;
    }

    public void setCol2(BigDecimal col2) {
        this.col2 = col2;
    }
}
public class DemoData1 {
    @ExcelProperty("序号")
    private String col1;
    @ExcelProperty("数字1")
    private String col2;

    public String getCol1() {
        return col1;
    }

    public void setCol1(String col1) {
        this.col1 = col1;
    }

    public String getCol2() {
        return col2;
    }

    public void setCol2(String col2) {
        this.col2 = col2;
    }
}

异常提示 1、导入文件格式如下图，可以看到展现的值与实际的值不一样，为了读取实际值我采用BigDecimal 去读 2、经过处理后，用同样的dto去导出，如下图，可以看到后面精度已丢失 3、为了解决这种问题，我采用切换dto的方式，将字段类型换成String去写入，导出结果如下图，可以看到这样结果是对了，但是涉及大量的dto copy，影响效率，而我如果采用String去读的话，又只会读取展现的值，读取的数据会丢失精度，请问对于这种场景有什么好的解决办法么？

建议描述