Java jdbc 数据库操作

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

public class Mysql {

public static void main(String[] args) {

Connection conn = null;

try{
//导入mysql
Class.forName("com.mysql.jdbc.Driver");
//连接数据库
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/dbname","root","123456");

if(conn != null){

//创建stat对象
Statement stat = conn.createStatement();

String sql = "INSERT INTO admin(`username`,`pwd`) VALUES('admin', '密码')";

//执行sql
int result = stat.executeUpdate(sql);

if(result > 0){
System.out.println("添加成功！");
}
}

}
catch(Exception ex){

ex.printStackTrace();

}finally{
if(conn != null){
try{
//关闭资源
conn.close();
conn = null;
}catch(Exception e){
e.printStackTrace();
}

}
}

}

}