bugfix: Fixed the issue where different ReadSheet objects could not get the correct value when comparing them. (#468)

* bugfix:修复不同ReadSheet对像在比较的时候无法正确获取到值

* bugfix:Add ReadSheet test case

* bugfix:check mvn spotless

---------

Co-authored-by: liaoguang <guang.liao@esrgear.com>

Author: softlg

fastexcel-test/src/test/java/cn/idev/excel/test/temp/issue406/ReadSheetTest.java

@@ -0,0 +1,122 @@
+package cn.idev.excel.test.temp.issue406;
+
+import cn.idev.excel.read.metadata.ReadSheet;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+class ReadSheetTest {
+
+    @Test
+    void testAll() {
+        testEquals_SameInstance();
+        testEquals_Null();
+        testEquals_DifferentClass();
+        testEquals_EqualObjects();
+
+        testHashCode_Consistency();
+        testHashCode_EqualityForEqualObjects();
+
+        // If @EqualsAndHashCode is not implemented, the following error will occur
+        testEquals_DifferentSheetNo();
+        testEquals_DifferentSheetName();
+        testEquals_DifferentNumRows();
+        testEquals_DifferentHiddenState();
+        testEquals_DifferentVeryHiddenState();
+    }
+
+    @Test
+    void testEquals_SameInstance() {
+        ReadSheet sheet = new ReadSheet(1, "Sheet1");
+        Assertions.assertEquals(sheet, sheet);
+    }
+
+    @Test
+    void testEquals_Null() {
+        ReadSheet sheet = new ReadSheet(1, "Sheet1");
+        Assertions.assertNotEquals(null, sheet);
+    }
+
+    @Test
+    void testEquals_DifferentClass() {
+        ReadSheet sheet = new ReadSheet(1, "Sheet1");
+        Assertions.assertNotEquals("Not a ReadSheet object", sheet);
+    }
+
+    @Test
+    void testEquals_EqualObjects() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        sheet1.setNumRows(100);
+        sheet1.setHidden(false);
+        sheet1.setVeryHidden(true);
+
+        ReadSheet sheet2 = new ReadSheet(1, "Sheet1");
+        sheet2.setNumRows(100);
+        sheet2.setHidden(false);
+        sheet2.setVeryHidden(true);
+
+        Assertions.assertEquals(sheet1, sheet2);
+    }
+
+    @Test
+    void testEquals_DifferentSheetNo() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        ReadSheet sheet2 = new ReadSheet(2, "Sheet1");
+        Assertions.assertNotEquals(sheet1, sheet2);
+    }
+
+    @Test
+    void testEquals_DifferentSheetName() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        ReadSheet sheet2 = new ReadSheet(1, "Sheet2");
+        Assertions.assertNotEquals(sheet1, sheet2);
+    }
+
+    @Test
+    void testEquals_DifferentNumRows() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        sheet1.setNumRows(100);
+        ReadSheet sheet2 = new ReadSheet(1, "Sheet1");
+        sheet2.setNumRows(200);
+        Assertions.assertNotEquals(sheet1, sheet2);
+    }
+
+    @Test
+    void testEquals_DifferentHiddenState() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        sheet1.setHidden(true);
+        ReadSheet sheet2 = new ReadSheet(1, "Sheet1");
+        sheet2.setHidden(false);
+        Assertions.assertNotEquals(sheet1, sheet2);
+    }
+
+    @Test
+    void testEquals_DifferentVeryHiddenState() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        sheet1.setVeryHidden(true);
+        ReadSheet sheet2 = new ReadSheet(1, "Sheet1");
+        sheet2.setVeryHidden(false);
+        Assertions.assertNotEquals(sheet1, sheet2);
+    }
+
+    @Test
+    void testHashCode_Consistency() {
+        ReadSheet sheet = new ReadSheet(1, "Sheet1");
+        int initialHashCode = sheet.hashCode();
+        Assertions.assertEquals(initialHashCode, sheet.hashCode());
+    }
+
+    @Test
+    void testHashCode_EqualityForEqualObjects() {
+        ReadSheet sheet1 = new ReadSheet(1, "Sheet1");
+        sheet1.setNumRows(100);
+        sheet1.setHidden(false);
+        sheet1.setVeryHidden(true);
+
+        ReadSheet sheet2 = new ReadSheet(1, "Sheet1");
+        sheet2.setNumRows(100);
+        sheet2.setHidden(false);
+        sheet2.setVeryHidden(true);
+
+        Assertions.assertEquals(sheet1.hashCode(), sheet2.hashCode());
+    }
+}

fastexcel/src/main/java/cn/idev/excel/read/metadata/ReadSheet.java

@@ -1,9 +1,12 @@
 package cn.idev.excel.read.metadata;
 
+import lombok.EqualsAndHashCode;
+
 /**
  * Read sheet
  *
  */
+@EqualsAndHashCode
 public class ReadSheet extends ReadBasicParameter {
     /**
      * Starting from 0