maven项目中的jdbc连接步骤

在maven项目pom.xml中到入驱动包（以下是驱动包代码）

  <dependencies>
  <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.15</version>
</dependency>

导入成功会看到Maven Dependencies下有个mysql-connector-Java包

然后按下面步骤：

package com.base.day16;

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

public class JdbcTest {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {

			//加载驱动程序
			Class.forName("com.mysql.cj.jdbc.Driver");

			//创建连接
			//java10为数据库名
			String url="jdbc:mysql://localhost:3306/java10?useSSL=false&serverTimezone=UTC";
			String username="用户名";
			String userpwd="密码";
			Connection conn = DriverManager.getConnection(url,username,userpwd);

			//创建Statement，执行sql
			Statement st=conn.createStatement();
			ResultSet rs=st.executeQuery("select sname,sage,ssex from student1");
			while(rs.next()){
				System.out.println("名字"+rs.getString("sname"));
				System.out.println("年齡"+rs.getInt("sage"));
				System.out.println("性別"+rs.getString("ssex"));
			}

			//关闭连接
			rs.close();
			st.close();
			conn.close();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}