From ab849f796bdc17236a95ea5fe5c166fb8f24a75c Mon Sep 17 00:00:00 2001
From: sws <15810472099@163.com>
Date: 星期六, 26 十一月 2022 16:12:02 +0800
Subject: [PATCH] 1
---
src/main/java/com/lf/server/helper/ExcelHelper.java | 73 ++++++++++++++++++++++++++++++++++++
1 files changed, 73 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/ExcelHelper.java b/src/main/java/com/lf/server/helper/ExcelHelper.java
new file mode 100644
index 0000000..014463d
--- /dev/null
+++ b/src/main/java/com/lf/server/helper/ExcelHelper.java
@@ -0,0 +1,73 @@
+package com.lf.server.helper;
+
+import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.ExcelReader;
+import com.alibaba.excel.context.AnalysisContext;
+import com.alibaba.excel.event.AnalysisEventListener;
+import com.alibaba.excel.read.metadata.ReadSheet;
+import com.lf.server.annotation.ExcelHead;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Excel甯姪绫�
+ * @author WWW
+ */
+public class ExcelHelper {
+ /**
+ * 璇诲彇Excel
+ *
+ * @param pathName 鏂囦欢璺緞
+ * @param <T> 娉涘瀷绫�
+ * @return 娉涘瀷绫婚泦鍚�
+ */
+ public static <T> List<T> readExcel(Class<?> clazz, String pathName) {
+ ExcelHead head = getExcelHead(clazz);
+ int headRowNumber = head == null ? 1 : head.headRows();
+ String[] strs = null == head || StringHelper.isEmpty(head.excludeSheets()) ? null : head.excludeSheets().split(",");
+ List<String> excludeSheets = null == strs ? null : Arrays.asList(strs);
+
+ List<T> list = new ArrayList<T>();
+ ExcelReader reader = EasyExcel.read(pathName, clazz, new AnalysisEventListener<T>() {
+ @Override
+ public void invoke(T t, AnalysisContext context) {
+ list.add(t);
+ }
+
+ @Override
+ public void doAfterAllAnalysed(AnalysisContext analysisContext) {
+ //
+ }
+ }).headRowNumber(headRowNumber).build();
+
+ List<ReadSheet> sheets = reader.excelExecutor().sheetList();
+ for (ReadSheet sheet : sheets) {
+ if (strs != null && excludeSheets.contains(sheet.getSheetName())) {
+ continue;
+ }
+
+ reader.read(sheet);
+ }
+ reader.finish();
+
+ return list;
+ }
+
+ /**
+ * 鑾峰彇Excel澶存敞瑙ｇ被
+ *
+ * @param clazz Class
+ * @param <T> 娉涘瀷绫�
+ * @return 澶磋鏁�
+ */
+ public static <T> ExcelHead getExcelHead(Class<?> clazz) {
+ ExcelHead head = clazz.getAnnotation(ExcelHead.class);
+ if (head != null) {
+ return head;
+ }
+
+ return null;
+ }
+}
--
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