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🐛 导出 Excel:Long 类型 ID 会丢失精度

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YunaiV 2023-12-29 21:44:48 +08:00
parent 3434a089a3
commit 882b70dcf1
1 changed files with 4 additions and 1 deletions
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5
yudao-framework/yudao-spring-boot-starter-excel/src/main/java/cn/iocoder/yudao/framework/excel/core/util/ExcelUtils.java
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@ -1,12 +1,14 @@
package cn.iocoder.yudao.framework.excel.core.util; package cn.iocoder.yudao.framework.excel.core.util;
import com.alibaba.excel.EasyExcel; import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.converters.longconverter.LongStringConverter;
import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy; import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartFile;
import jakarta.servlet.http.HttpServletResponse; import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException; import java.io.IOException;
import java.net.URLEncoder; import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.List; import java.util.List;
/** /**
@ -33,9 +35,10 @@ public class ExcelUtils {
EasyExcel.write(response.getOutputStream(), head) EasyExcel.write(response.getOutputStream(), head)
.autoCloseStream(false) // 不要自动关闭，交给 Servlet 自己处理 .autoCloseStream(false) // 不要自动关闭，交给 Servlet 自己处理
.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()) // 基于 column 长度，自动适配。最大 255 宽度 .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()) // 基于 column 长度，自动适配。最大 255 宽度
.registerConverter(new LongStringConverter()) // 避免 Long 类型丢失精度
.sheet(sheetName).doWrite(data); .sheet(sheetName).doWrite(data);
// 设置 header 和 contentType。写在最后的原因是，避免报错时，响应 contentType 已经被修改了 // 设置 header 和 contentType。写在最后的原因是，避免报错时，响应 contentType 已经被修改了
response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, "UTF-8")); response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, StandardCharsets.UTF_8));
response.setContentType("application/vnd.ms-excel;charset=UTF-8"); response.setContentType("application/vnd.ms-excel;charset=UTF-8");
} }