From 6e0d1d51916e4f41e06c06e984a70ebd08352d95 Mon Sep 17 00:00:00 2001
From: houzhongjian <houzhongyi@126.com>
Date: 星期四, 26 六月 2025 09:35:49 +0800
Subject: [PATCH] 打包加密jar包配置

---
 iailab-framework/iailab-common-excel/src/main/java/com/iailab/framework/excel/core/util/ExcelUtils.java |   39 ++++++++++++++++++++++++++++++++++++++-
 1 files changed, 38 insertions(+), 1 deletions(-)

diff --git a/iailab-framework/iailab-common-excel/src/main/java/com/iailab/framework/excel/core/util/ExcelUtils.java b/iailab-framework/iailab-common-excel/src/main/java/com/iailab/framework/excel/core/util/ExcelUtils.java
index 0eb35ac..469f41b 100644
--- a/iailab-framework/iailab-common-excel/src/main/java/com/iailab/framework/excel/core/util/ExcelUtils.java
+++ b/iailab-framework/iailab-common-excel/src/main/java/com/iailab/framework/excel/core/util/ExcelUtils.java
@@ -1,5 +1,6 @@
 package com.iailab.framework.excel.core.util;
 
+import com.alibaba.excel.EasyExcelFactory;
 import com.iailab.framework.excel.core.handler.SelectSheetWriteHandler;
 import com.alibaba.excel.EasyExcel;
 import com.alibaba.excel.converters.longconverter.LongStringConverter;
@@ -10,6 +11,7 @@
 import java.io.IOException;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -36,7 +38,7 @@
         EasyExcel.write(response.getOutputStream(), head)
                 .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 SelectSheetWriteHandler(head)) // 基于固定 sheet 实现下拉框
+                .registerWriteHandler(new SelectSheetWriteHandler(head, false)) // 基于固定 sheet 实现下拉框
                 .registerConverter(new LongStringConverter()) // 避免 Long 类型丢失精度
                 .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
@@ -50,4 +52,39 @@
                 .doReadAllSync();
     }
 
+    public static <T> void write(HttpServletResponse response, String filename, String sheetName,
+                                 Class<T> head, List<T> data, boolean selectFlag) throws IOException {
+        // 输出 Excel
+        EasyExcel.write(response.getOutputStream(), head)
+                .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 SelectSheetWriteHandler(head, selectFlag)) // 基于固定 sheet 实现下拉框
+                .registerConverter(new LongStringConverter()) // 避免 Long 类型丢失精度
+                .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
+        response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, StandardCharsets.UTF_8.name()));
+        response.setContentType("application/vnd.ms-excel;charset=UTF-8");
+    }
+
+    public static void write(HttpServletResponse response, String filename, String sheetName,
+                             List<String> column, List<List<Object>> data) throws IOException {
+
+        List<List<String>> head = new ArrayList<>();
+        if (column != null && column.size() > 0) {
+            for (String columnName : column) {
+                List<String> item = new ArrayList<>();
+                item.add(columnName);
+                head.add(item);
+            }
+        }
+
+        EasyExcelFactory.write(response.getOutputStream())
+                .head(head)
+                // handle
+                .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
+                .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
+        response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, StandardCharsets.UTF_8.name()));
+        response.setContentType("application/vnd.ms-excel;charset=UTF-8");
+    }
 }

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