Jdbc-基本连接

1.新建工程

2.导入jar包（驱动）

3.源代码

package base.jdbc;

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

import com.mysql.jdbc.Connection;

@SuppressWarnings("unused")
public class jd1 {

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

test();
}

static void test() throws SQLException{
//1.注册驱动
DriverManager.registerDriver(new com.mysql.jdbc.Driver());

//2.建立连接
java.sql.Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/quick", "root", "****");//ip user password

//3.创建语句
Statement st=conn.createStatement();

//4.执行语句
ResultSet rs=st.executeQuery("select *from box");

//5.处理结果
System.out.println("编号\t状态\t型号\t");
while(rs.next()){
//System.out.println("编号\t状态\t型号\t");
System.out.println(rs.getObject(1)+"\t"+rs.getObject(2)+"\t"+rs.getObject(3)+"\t");
}

//6.释放资源
rs.close();
st.close();
conn.close();
}

}