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1.修复Excel导出的数值型列，当指定了保留小数位数（scale）时，会因Excel把数字渲染成日期，而错误显示成日期的问题。

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2.增加数值型（包括int、long、double、BigInteger、BigDecimal等型）列的千分位逗号格式化，包括小数的类型（double、BigDecimal等）根据scale指定的小数位数显示
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LianTao 2026-04-21 15:57:35 +08:00
parent 6a7c448d55
commit 4e1d0dd30a
1 changed files with 74 additions and 3 deletions
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77
ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
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@ -9,6 +9,7 @@ import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
@ -1029,11 +1030,35 @@ public class ExcelUtil<T>
}
cell.setCellValue(StringUtils.isNull(cellValue) ? attr.defaultValue() : cellValue + attr.suffix());
}
else if (ColumnType.NUMERIC == attr.cellType())
else if (ColumnType.NUMERIC == attr.cellType()) // String型但却又cellType为NUMERIC，则将字符串转为数字
{
if (StringUtils.isNotNull(value))
{
cell.setCellValue(StringUtils.contains(Convert.toStr(value), ".") ? Convert.toDouble(value) : Convert.toInt(value));
String numStr = Convert.toStr(value);
boolean hasDecimal = StringUtils.contains(numStr, ".");
if (hasDecimal)
{
Double doubleVal = Convert.toDouble(value);
int scale = attr.scale();
StringBuilder patternBuilder = new StringBuilder("#,##0");
if (scale >= 0)
{
patternBuilder.append('.');
for (int i = 0; i < scale; i++)
{
patternBuilder.append('0');
}
}
DecimalFormat df = new DecimalFormat(patternBuilder.toString());
cell.setCellValue(df.format(doubleVal));
}
else
{
Long longVal = Convert.toLong(value);
DecimalFormat df = new DecimalFormat("#,##0");
cell.setCellValue(df.format(longVal));
}
}
}
else if (ColumnType.IMAGE == attr.cellType())
@ -1171,7 +1196,53 @@ public class ExcelUtil<T>
}
else if (value instanceof BigDecimal && -1 != attr.scale())
{
cell.setCellValue(Convert.toStr((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).doubleValue()));
//数值格式化
BigDecimal bdValue = (BigDecimal) value;
BigDecimal scaledValue = bdValue.setScale(attr.scale(), attr.roundingMode());
StringBuilder patternBuilder = new StringBuilder("#,##0");
if (attr.scale() > 0)
{
patternBuilder.append('.');
}
for (int i = 0; i < attr.scale(); i++)
{
patternBuilder.append('0');
}
DecimalFormat df = new DecimalFormat(patternBuilder.toString());
cell.setCellValue(df.format(scaledValue));
}
else if (value instanceof BigInteger)
{
BigInteger bigIntValue = (BigInteger) value;
DecimalFormat df = new DecimalFormat("#,##0");
cell.setCellValue(df.format(bigIntValue));
}
else if (value instanceof Number && !(value instanceof BigDecimal))
{
Number numValue = (Number) value;
String numStr = numValue.toString();
boolean hasDecimal = StringUtils.contains(numStr, ".");
if (hasDecimal)
{
int scale = attr.scale();
StringBuilder patternBuilder = new StringBuilder("#,##0");
if (scale >= 0)
{
patternBuilder.append('.');
for (int i = 0; i < scale; i++)
{
patternBuilder.append('0');
}
}
DecimalFormat df = new DecimalFormat(patternBuilder.toString());
cell.setCellValue(df.format(numValue.doubleValue()));
}
else
{
DecimalFormat df = new DecimalFormat("#,##0");
cell.setCellValue(df.format(numValue.longValue()));
}
}
else if (!attr.handler().equals(ExcelHandlerAdapter.class))
{