Intellij IDEA 连接数据库（MySQL）详细过程

配置pom.xml 导入mysql-connector-java:5.1.49

      
          mysql
          mysql-connector-java
          5.1.49
      
      
      

package com.qzxiaofeng.jdbc;

import java.sql.*;


public class FirstJdbc1 {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/xiao?useSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai";
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        Connection connection=null;
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            connection = DriverManager.getConnection(url,"root","123456");
            statement = connection.prepareStatement("select * from t_manager");
            resultSet = statement.executeQuery();
            while (resultSet.next()){
                System.out.println("id:"+resultSet.getInt("id"));
                System.out.println("username:"+resultSet.getString("username"));
                System.out.println("password:"+resultSet.getString("password"));
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            if(null!=resultSet){
                try {
                    resultSet.close();
                } catch (SQLException exception) {
                    exception.printStackTrace();
                }
            }
            if(null!=statement){
                try {
                    statement.close();
                } catch (SQLException exception) {
                    exception.printStackTrace();
                }
            }
            if(null!=connection){
                try {
                    connection.close();
                } catch (SQLException exception) {
                    exception.printStackTrace();
                }
            }
        }

    }
}

完结，加油！