jdbc登陆查询(待更新)

Posted 2021-11-30 xybz

另附上一篇jdbc查询代码，有空再来整理

我用的mysql

需要导入jar包：mysql-jar\mysql-connector-java-5.1.47-bin.jar

2019-05-14 02:43:22

package slect;
import java.sql.*;

public class Select {
public static void main(String[] args){
           String url = "jdbc:mysql://localhost:3306/大吉大利";
           String user = "root"; 
           String password = "123456";
           try { 
            Class.forName("com.mysql.jdbc.Driver");
            Connection conn = DriverManager.getConnection(url, user, password);            
            if(!conn.isClosed()) 
             System.out.println("登陆成功");                   
            Statement statement = conn.createStatement();
            String sql = "select * from persion";
            ResultSet rs = statement.executeQuery(sql);            
            while(rs.next()) {
                String id=rs.getString(1);
                String name=rs.getString(2);         
                System.out.println(id+name);
            }  
            rs.close();
            conn.close();
           } catch(Exception e) {      
            e.printStackTrace();
           }
} 
}