chore: 删除 TdEngineService 中未使用的 closeQuietly 方法

iot-platform/src/main/java/com/iot/platform/service/TdEngineService.java

@@ -558,11 +558,11 @@ public class TdEngineService {
         try (Connection conn = getConnection()) {
             // 检查超级表是否存在 — 使用 PreparedStatement 防止 SQL 注入
             String checkStableSql = "SELECT * FROM information_schema.ins_tables WHERE table_name = ? AND db_name = ?";
-            try (PreparedStatement pstmt = conn.prepareStatement(checkStableSql)) {
-                pstmt.setString(1, superTableName);
-                pstmt.setString(2, dbName);
-                pstmt.setQueryTimeout(5);
-                try (ResultSet rs = pstmt.executeQuery()) {
+            try (PreparedStatement pStmt = conn.prepareStatement(checkStableSql)) {
+                pStmt.setString(1, superTableName);
+                pStmt.setString(2, dbName);
+                pStmt.setQueryTimeout(5);
+                try (ResultSet rs = pStmt.executeQuery()) {
                     if (!rs.next()) {
                         log.info("超级表不存在，创建: {}.{}", dbName, superTableName);
                         initTableStructure(dbName, superTableName, table);
@@ -574,11 +574,11 @@ public class TdEngineService {
             // 检查子表是否存在 — 使用 PreparedStatement 防止 SQL 注入
             String checkTableSql = "SELECT * FROM information_schema.ins_tables " +
                     "WHERE table_name = ? AND db_name = ? AND table_type = 'CHILD_TABLE'";
-            try (PreparedStatement pstmt = conn.prepareStatement(checkTableSql)) {
-                pstmt.setString(1, table);
-                pstmt.setString(2, dbName);
-                pstmt.setQueryTimeout(5);
-                try (ResultSet rs = pstmt.executeQuery()) {
+            try (PreparedStatement pStmt = conn.prepareStatement(checkTableSql)) {
+                pStmt.setString(1, table);
+                pStmt.setString(2, dbName);
+                pStmt.setQueryTimeout(5);
+                try (ResultSet rs = pStmt.executeQuery()) {
                     if (!rs.next()) {
                         String tableSql = String.format(
                                 "CREATE TABLE IF NOT EXISTS %s.%s USING %s.%s TAGS ('%s')",
@@ -616,15 +616,4 @@ public class TdEngineService {
         }
     }
 
-    private void closeQuietly(AutoCloseable... resources) {
-        for (AutoCloseable resource : resources) {
-            if (resource != null) {
-                try {
-                    resource.close();
-                } catch (Exception e) {
-                    log.debug("关闭资源时发生异常: {}", e.getMessage());
-                }
-            }
-        }
-    }
 }