From ff76df9ae0f2383db903bab3efc6ef1223d0d071 Mon Sep 17 00:00:00 2001
From: liyang <liyang1987jay@163.com>
Date: 星期三, 18 十二月 2024 17:27:16 +0800
Subject: [PATCH] 增加导出模板必填、备注 增加单独的导出模板 方法
---
ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/utils/ExcelUtil.java | 93 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 93 insertions(+), 0 deletions(-)
diff --git a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/utils/ExcelUtil.java b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/utils/ExcelUtil.java
index a6c14ad..fa1fb90 100644
--- a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/utils/ExcelUtil.java
+++ b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/utils/ExcelUtil.java
@@ -16,14 +16,20 @@
import lombok.NoArgsConstructor;
import org.dromara.common.core.utils.StringUtils;
import org.dromara.common.core.utils.file.FileUtils;
+import org.dromara.common.core.utils.reflect.ReflectUtils;
+import org.dromara.common.excel.annotation.ExcelNotation;
+import org.dromara.common.excel.annotation.ExcelRequired;
import org.dromara.common.excel.convert.ExcelBigNumberConvert;
import org.dromara.common.excel.core.*;
+import org.dromara.common.excel.handler.DataWriteHandler;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
+import java.lang.reflect.Field;
import java.util.Collection;
+import java.util.HashMap;
import java.util.List;
import java.util.Map;
@@ -433,4 +439,91 @@
return IdUtil.fastSimpleUUID() + "_" + filename + ".xlsx";
}
+ /**
+ * 鑾峰彇蹇呭～鍒桵ap
+ *
+ * @param clazz 绫籧lass
+ * @return java.util.Map<java.lang.Integer, java.lang.Short>
+ * @author SunLingDa
+ * @date 2022/11/3 13:23
+ */
+ private static Map<Integer, Short> getRequiredMap(Class<?> clazz) {
+ Map<Integer, Short> requiredMap = new HashMap<>();
+ Field[] fields = clazz.getDeclaredFields();
+ // 妫�鏌� fields 鏁扮粍鏄惁涓虹┖
+ if (fields.length == 0) {
+ return requiredMap;
+ }
+ Field[] filteredFields = ReflectUtils.getFields(clazz, field -> !"serialVersionUID".equals(field.getName()));
+
+ for (int i = 0; i < filteredFields.length; i++) {
+ Field field = filteredFields[i];
+ if (!field.isAnnotationPresent(ExcelRequired.class)) {
+ continue;
+ }
+ ExcelRequired excelRequired = field.getAnnotation(ExcelRequired.class);
+ int columnIndex = excelRequired.index() == -1 ? i : excelRequired.index();
+ requiredMap.put(columnIndex, excelRequired.fontColor().getIndex());
+ }
+ return requiredMap;
+ }
+
+ /**
+ * 鑾峰彇鎵规敞Map
+ *
+ * @param clazz 绫籧lass
+ * @return java.util.Map<java.lang.Integer, java.lang.String>
+ * @author SunLingDa
+ * @date 2022/11/3 13:24
+ */
+ private static Map<Integer, String> getNotationMap(Class<?> clazz) {
+ Map<Integer, String> notationMap = new HashMap<>();
+ Field[] fields = clazz.getDeclaredFields();
+ // 妫�鏌� fields 鏁扮粍鏄惁涓虹┖
+ if (fields.length == 0) {
+ return notationMap;
+ }
+ Field[] filteredFields = ReflectUtils.getFields(clazz, field -> !"serialVersionUID".equals(field.getName()));
+ for (int i = 0; i < filteredFields.length; i++) {
+ Field field = filteredFields[i];
+ if (!field.isAnnotationPresent(ExcelNotation.class)) {
+ continue;
+ }
+ ExcelNotation excelNotation = field.getAnnotation(ExcelNotation.class);
+ int columnIndex = excelNotation.index() == -1 ? i : excelNotation.index();
+ notationMap.put(columnIndex, excelNotation.value());
+ }
+ return notationMap;
+ }
+ public static <T> void exportExcelRequire(List<T> list, String sheetName, Class<T> clazz,HttpServletResponse response) {
+ exportExcelTemplate(list,sheetName,clazz,response);
+ }
+ /**
+ * 瀵煎嚭excel妯℃澘
+ *
+ * @param list 瀵煎嚭鏁版嵁闆嗗悎
+ * @param sheetName 宸ヤ綔琛ㄧ殑鍚嶇О
+ * @param clazz 瀹炰綋绫�
+ * @param response 鍝嶅簲浣�
+ */
+ public static <T> void exportExcelTemplate(List<T> list, String sheetName, Class<T> clazz, HttpServletResponse response) {
+ try {
+ Map<Integer, Short> requiredMap = getRequiredMap(clazz);
+ Map<Integer, String> notationMap = getNotationMap(clazz);
+ resetResponse(sheetName, response);
+ ServletOutputStream os = response.getOutputStream();
+ DataWriteHandler writeHandler = new DataWriteHandler(notationMap, requiredMap);
+ ExcelWriterSheetBuilder builder = EasyExcel.write(os, clazz)
+ .autoCloseStream(false)
+ // 鑷姩閫傞厤
+ .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
+ .registerWriteHandler(writeHandler)
+ // 澶ф暟鍊艰嚜鍔ㄨ浆鎹� 闃叉澶辩湡
+ .registerConverter(new ExcelBigNumberConvert())
+ .sheet(sheetName);
+ builder.doWrite(list);
+ } catch (IOException e) {
+ throw new RuntimeException("瀵煎嚭Excel寮傚父");
+ }
+ }
}
--
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