重构部分代码；修改方法名。

src/main/java/xyz/zhouxy/jdbc/RowMapper.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2022-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package xyz.zhouxy.jdbc;
+
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
+@FunctionalInterface
+public interface RowMapper<T> {
+    T mapRow(ResultSet rs, int rowNumber) throws SQLException;
+
+    public static final RowMapper<Map<String, Object>> HASH_MAP_MAPPER = (rs, rowNumber) -> {
+        Map<String, Object> result = new HashMap<>();
+        ResultSetMetaData metaData = rs.getMetaData();
+        int columnCount = metaData.getColumnCount();
+        for (int i = 1; i <= columnCount; i++) {
+            String colName = metaData.getColumnName(i);
+            result.put(colName, rs.getObject(colName));
+        }
+        return result;
+    };
+
+    public static final RowMapper<DbRecord> RECORD_MAPPER =
+            (rs, rowNumber) -> new DbRecord(HASH_MAP_MAPPER.mapRow(rs, rowNumber));
+
+    public static <T> RowMapper<T> beanRowMapper(Class<T> beanType) throws SQLException {
+        return DefaultBeanRowMapper.of(beanType);
+    }
+
+    public static <T> RowMapper<T> beanRowMapper(Class<T> beanType, Map<String, String> propertyColMap)
+            throws SQLException {
+        return DefaultBeanRowMapper.of(beanType, propertyColMap);
+    }
+}