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* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 * * http://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 cn.escheduler.common.utils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.sql.*; public class MysqlUtils { public static final Logger logger = LoggerFactory.getLogger(MysqlUtils.class); private static MysqlUtils instance; MysqlUtils() { } public static MysqlUtils getInstance() { if (null == instance) { syncInit(); } return instance; } private static synchronized void syncInit() { if (instance == null) { instance = new MysqlUtils(); } } public void release(ResultSet rs, Statement stmt, Connection conn) { try { if (rs != null) { rs.close(); rs = null; } } catch (SQLException e) { logger.error(e.getMessage(),e); throw new RuntimeException(e); } finally { try { if (stmt != null) { stmt.close(); stmt = null; } } catch (SQLException e) { logger.error(e.getMessage(),e); throw new RuntimeException(e); } finally { try { if (conn != null) { conn.close(); conn = null; } } catch (SQLException e) { logger.error(e.getMessage(),e); throw new RuntimeException(e); } } } } public static void releaseResource(ResultSet rs, PreparedStatement ps, Connection conn) { MysqlUtils.getInstance().release(rs,ps,conn); if (null != rs) { try { rs.close(); } catch (SQLException e) { logger.error(e.getMessage(),e); } } if (null != ps) { try { ps.close(); } catch (SQLException e) { logger.error(e.getMessage(),e); } } if (null != conn) { try { conn.close(); } catch (SQLException e) { logger.error(e.getMessage(),e); } } } }pull/2/head
dailidong
5 years ago
1 changed files with 0 additions and 0 deletions
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