🐛 导出 Excel:Long 类型 ID 会丢失精度
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@ -1,12 +1,14 @@
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package cn.iocoder.yudao.framework.excel.core.util;
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import com.alibaba.excel.EasyExcel;
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import com.alibaba.excel.converters.longconverter.LongStringConverter;
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import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
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import org.springframework.web.multipart.MultipartFile;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.net.URLEncoder;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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/**
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@ -33,9 +35,10 @@ public class ExcelUtils {
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EasyExcel.write(response.getOutputStream(), head)
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.autoCloseStream(false) // 不要自动关闭,交给 Servlet 自己处理
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.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()) // 基于 column 长度,自动适配。最大 255 宽度
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.registerConverter(new LongStringConverter()) // 避免 Long 类型丢失精度
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.sheet(sheetName).doWrite(data);
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// 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
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response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, "UTF-8"));
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response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, StandardCharsets.UTF_8));
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response.setContentType("application/vnd.ms-excel;charset=UTF-8");
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}
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