dbutils.java

这是我刚刚学STRUTS的时候做的一点东西

package org.lc.common;

import java.sql.*;

public class DBUtils {
	public static void close(ResultSet rs, Statement stmt, Connection conn) {
		try {
			if (rs != null)
				rs.close();
			if (stmt != null)
				stmt.close();
			if (conn != null)
				conn.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void close(ResultSet rs, PreparedStatement pstmt,
			Connection conn) {
		try {
			if (rs != null)
				rs.close();
			if (pstmt != null)
				pstmt.close();
			if (conn != null)
				conn.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void close(Statement stmt, Connection conn) {
		close(null, stmt, conn);
	}

}