java_JDBC連接及關閉數據庫

package com.java1234.jdbc.chap02.sec04;

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


public class Demo1 {
    //數據庫地址
    private static String dbUrl="jdbc:mysql://localhost:3306/db_book";
    private static String dbUrl1="jdbc:mysql://localhost:3306/db_book?characterEncoding=utf8&useSSL=false";
    //用戶名
    private static String dbUserName="root";
    //密碼
    private static String dbPassword="shendianxin123";
    //驅動名稱
    private static String jdbcName = "com.mysql.jdbc.Driver";
    
    public static void main(String[] args) {
        try {
            Class.forName(jdbcName);
            System.out.println("加載驅動成功！");
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("加載驅動失敗！");
        }
        
        Connection con = null;
        try {
            //獲取數據庫連接
            con = DriverManager.getConnection(dbUrl1, dbUserName, dbPassword);
            System.out.println("獲取數據庫連接成功！");
            System.out.println("進行數據庫操作！");
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("獲取數據庫連接失敗！");
        }finally{
            try {
                con.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        
    }
}