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  • jdbc操作

    public class Activityjdbc {
        
        private DataSource dataSource;
        protected static final Logger logger = LoggerFactory.getLogger(Activityjdbc.class);
    
        /**
         * 插入
         */
        public void insert() {
            String sql ="插入sql语句";
            Connection  conn = null;
            Statement state =null;
            try {
                conn = dataSource.getConnection();
                 state = conn.createStatement();
                state.executeUpdate(sql);
                conn.commit();//提交(增,删,改)
            } catch (SQLException e) {
                JdbcUtil.rollbackConnection(conn);
                logger.info(e.getMessage(), e);
            }finally{
                JdbcUtil.closeStatement(state);
                JdbcUtil.closeConnection(conn);
            }
        }
    
        /**
         * 查询
         */
        public void QueryHdIndex() {
            String sql = "查询语句";int a = 0;
            Connection  conn = null;
            Statement state =null;
            ResultSet rs=null;
            try {
                conn = dataSource.getConnection();
                 state = conn.createStatement();
                 rs = state.executeQuery(sql);
                while (rs.next()) {
                    a = rs.getInt(0);
                }
            } catch (SQLException e) {
                JdbcUtil.rollbackConnection(conn);
                logger.info(e.getMessage(), e);
            }finally{
                JdbcUtil.closeResultSet(rs);
                JdbcUtil.closeStatement(state);
                JdbcUtil.closeConnection(conn);
            }
           
        }
    public DataSource getDataSource() {
            return dataSource;
        }
        public void setDataSource(DataSource dataSource) {
            this.dataSource = dataSource;
        }
        
    }
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  • 原文地址:https://www.cnblogs.com/mcahkf/p/4766388.html
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