From 461dc25c3bf9c1d0bda3a24b36d7da11af5eb740 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Tue, 31 Mar 2026 18:48:28 +0800
Subject: [PATCH] 支持多sheet导出
---
ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java | 76 ++++++++++++++++++++++++++++++++++++++
1 files changed, 76 insertions(+), 0 deletions(-)
diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
index 500b60e..1320e8b 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
@@ -503,6 +503,82 @@
}
/**
+ * 多 Sheet 导出 —— 将多个不同类型的数据集合写入同一 Excel，直接输出到 HttpServletResponse
+ *
+ * @param response HTTP 响应
+ * @param sheets Sheet 描述列表
+ */
+ public static void exportMultiSheet(HttpServletResponse response, List<ExcelSheet<?>> sheets)
+ {
+ if (sheets == null || sheets.isEmpty())
+ {
+ return;
+ }
+ SXSSFWorkbook wb = buildWorkbook(sheets);
+ try
+ {
+ response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+ response.setCharacterEncoding("utf-8");
+ wb.write(response.getOutputStream());
+ }
+ catch (Exception e)
+ {
+ log.error("多Sheet导出Excel异常{}", e.getMessage());
+ }
+ finally
+ {
+ IOUtils.closeQuietly(wb);
+ }
+ }
+
+ /**
+ * 构建多 Sheet Workbook —— 创建 SXSSFWorkbook 并将所有 Sheet 数据写入
+ *
+ * @param sheets Sheet 描述列表
+ * @return 已写入所有 Sheet 数据的 SXSSFWorkbook
+ */
+ @SuppressWarnings({ "rawtypes", "unchecked" })
+ private static SXSSFWorkbook buildWorkbook(List<ExcelSheet<?>> sheets)
+ {
+ SXSSFWorkbook wb = new SXSSFWorkbook(500);
+ for (ExcelSheet<?> excelSheet : sheets)
+ {
+ ExcelUtil util = new ExcelUtil(excelSheet.getClazz());
+ util.initWithWorkbook(wb, excelSheet.getList(), excelSheet.getSheetName(), excelSheet.getTitle());
+ util.writeSheet();
+ }
+ return wb;
+ }
+
+ /**
+ * 使用外部传入的 Workbook 初始化（多 Sheet 导出专用）
+ * 与 init() 的区别：不新建 Workbook，而是在已有 wb 上追加新 Sheet
+ *
+ * @param wb 已有工作簿
+ * @param list 数据集合
+ * @param sheetName Sheet 名称
+ * @param title 大标题（可为空）
+ */
+ public void initWithWorkbook(SXSSFWorkbook wb, List<T> list, String sheetName, String title)
+ {
+ if (list == null)
+ {
+ list = new ArrayList<T>();
+ }
+ this.list = list;
+ this.sheetName = sheetName;
+ this.title = title != null ? title : "";
+ this.type = Type.EXPORT;
+ this.rownum = 0;
+ this.wb = wb;
+ this.sheet = wb.createSheet(sheetName);
+ createExcelField();
+ this.styles = createStyles(wb);
+ createTitle();
+ createSubHead();
+ }
+
+ /**
* 对list数据源将其里面的数据导入到excel表单
*
* @param sheetName 工作表的名称
--
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