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  • 封装连接数据库

    package com.huawei.utils;

    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;

    /**
    * @author Administrator
    *
    */
    public class DBUtil {


    /**
    * 得到数据库连接
    * @return
    */
    public static Connection getConnection(){
    //显示加载驱动
    try {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "123456");
    return connection;
    } catch (ClassNotFoundException e) {
    e.printStackTrace();
    }catch (SQLException e) {
    e.printStackTrace();
    }
    return null;
    }

    /**
    *
    * 释放资源
    * @param objects
    */
    public static void close(Object ...objects){
    if(objects!=null && objects.length>0){
    try {
    for(Object o:objects){
    if(o instanceof ResultSet){
    ((ResultSet)o).close();
    }else if(o instanceof Statement){
    ((Statement)o).close();
    }else if(o instanceof Connection){
    ((Connection)o).close();
    }
    }
    } catch (SQLException e) {
    e.printStackTrace();
    }
    }
    }
    }

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  • 原文地址:https://www.cnblogs.com/hwgok/p/5814620.html
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