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  • 使用Druid的JDBCUtils

    //JDBCUtils.java
    //依赖: mysql.jar, druid.jar
    import com.alibaba.druid.pool.DruidDataSourceFactory;
    import javax.sql.DataSource;
    import java.sql.*;
    import java.util.Properties;
    
    public class JDBCUtils {
        private static DataSource ds;
    
        static {
            try {
                Properties pro = new Properties();
                pro.load(JDBCUtils.class.getClassLoader().getResourceAsStream("resource/druid.properties"));
                ds = DruidDataSourceFactory.createDataSource(pro);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        public static Connection getConnection() throws SQLException {
            return ds.getConnection();
        }
    
        public static DataSource getDataSource(){
            return ds;
        }
    
        public static void close(Statement stmt, Connection conn){
            if(stmt != null){
                try{
                    stmt.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
            if (conn != null) {
                try {
                    conn.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }
    
        public static void close(ResultSet rs, Statement stmt, Connection conn) {
            if (rs != null) {
                try {
                    rs.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
            close(stmt, conn);
        }
    }
    
    # druid.properitis
    driverClassName=com.mysql.jdbc.Driver
    url=jdbc:mysql://192.168.31.169:3306/study
    username=root
    password=root
    initialSize=5
    maxActive=5
    maxWait=3000
    
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  • 原文地址:https://www.cnblogs.com/goxxiv/p/14507351.html
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