jiangyc/RuoYi-Vue-Plus
1
0
Fork 0
mirror of https://github.com/dromara/RuoYi-Vue-Plus.git synced 2025-09-24 07:19:46 +08:00
Code Issues Packages Projects Releases Wiki Activity

add 增加 导出雪花id excel失真问题

Browse Source
This commit is contained in:
疯狂的狮子li
2021-08-24 14:28:39 +08:00
parent bf86e5979b
commit f5b90af6d0
5 changed files with 59 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelBigNumberConvert.java Normal file
View File

@ -0,0 +1,51 @@
package com.ruoyi.common.convert;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.util.ObjectUtil;
import com.alibaba.excel.converters.Converter;
import com.alibaba.excel.enums.CellDataTypeEnum;
import com.alibaba.excel.metadata.CellData;
import com.alibaba.excel.metadata.GlobalConfiguration;
import com.alibaba.excel.metadata.property.ExcelContentProperty;
import lombok.extern.slf4j.Slf4j;
import java.math.BigDecimal;
/**
* 大数值转换
* Excel 数值长度位15位 大于15位的数值转换位字符串
*
* @author Lion Li
*/
@Slf4j
public class ExcelBigNumberConvert implements Converter<Long> {
@Override
public Class<Long> supportJavaTypeKey() {
return Long.class;
}
@Override
public CellDataTypeEnum supportExcelTypeKey() {
return CellDataTypeEnum.STRING;
}
@Override
public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
return Convert.toLong(cellData.getData());
}
@Override
public CellData<Object> convertToExcelData(Long object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
if (ObjectUtil.isNotNull(object)) {
String str = Convert.toStr(object);
if (str.length() > 15) {
return new CellData<>(str);
}
}
CellData<Object> cellData = new CellData<>(new BigDecimal(object));
cellData.setType(CellDataTypeEnum.NUMBER);
return cellData;
}
}

3
ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
View File

@ -3,6 +3,7 @@ package com.ruoyi.common.utils.poi;
import cn.hutool.core.util.IdUtil;
import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
import com.ruoyi.common.convert.ExcelBigNumberConvert;
import com.ruoyi.common.utils.DictUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUtils;
@ -52,6 +53,8 @@ public class ExcelUtil {
.autoCloseStream(false)
// 自动适配
.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
// 大数值自动转换 防止失真
.registerConverter(new ExcelBigNumberConvert())
.sheet(sheetName).doWrite(list);
} catch (IOException e) {
throw new RuntimeException("导出Excel异常");