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diff --git a/src/test/util/DatabaseUtilTest.java b/src/test/util/DatabaseUtilTest.java
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+++ b/src/test/util/DatabaseUtilTest.java
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+package test.util;
+
+import org.junit.Test;
+import util.DatabaseUtil;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+import static org.junit.Assert.*;
+
+/**
+ * DatabaseUtil类的单元测试
+ */
+public class DatabaseUtilTest {
+
+    /**
+     * 测试获取数据库连接
+     */
+    @Test
+    public void testGetConnection() {
+        try (Connection conn = DatabaseUtil.getConnection()) {
+            // 验证连接不为空
+            assertNotNull("数据库连接不应该为空", conn);
+            // 验证连接是否有效
+            assertTrue("数据库连接应该是有效的", !conn.isClosed());
+        } catch (SQLException e) {
+            fail("获取数据库连接时发生异常: " + e.getMessage());
+        }
+    }
+
+    /**
+     * 测试连接自动关闭
+     */
+    @Test
+    public void testConnectionAutoClose() {
+        Connection conn = null;
+        try {
+            // 在try-with-resources块中获取连接
+            try (Connection autoCloseConn = DatabaseUtil.getConnection()) {
+                assertNotNull("数据库连接不应该为空", autoCloseConn);
+                assertTrue("连接应该是开启状态", !autoCloseConn.isClosed());
+            }
+            // try-with-resources块结束后，获取一个新连接来测试
+            conn = DatabaseUtil.getConnection();
+            assertNotNull("新的数据库连接不应该为空", conn);
+            assertTrue("新的连接应该是开启状态", !conn.isClosed());
+        } catch (SQLException e) {
+            fail("测试连接自动关闭时发生异常: " + e.getMessage());
+        } finally {
+            if (conn != null) {
+                try {
+                    conn.close();
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * 测试多次获取连接
+     */
+    @Test
+    public void testMultipleConnections() {
+        try (Connection conn1 = DatabaseUtil.getConnection();
+             Connection conn2 = DatabaseUtil.getConnection()) {
+            
+            assertNotNull("第一个数据库连接不应该为空", conn1);
+            assertNotNull("第二个数据库连接不应该为空", conn2);
+            
+            // 验证获取到的是两个不同的连接对象
+            assertNotEquals("两个连接对象应该是不同的实例", conn1, conn2);
+            
+            // 验证两个连接都是有效的
+            assertTrue("第一个连接应该是有效的", !conn1.isClosed());
+            assertTrue("第二个连接应该是有效的", !conn2.isClosed());
+        } catch (SQLException e) {
+            fail("测试多个连接时发生异常: " + e.getMessage());
+        }
+    }
+}