java直接通过jdbc连接操作数据库模板

简单的连接数据库的java程序，方便临时使用：

package me.muphy.tomcat.filter.service;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
/**
 * spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 * spring.datasource.url=jdbc:mysql://ip/hacker
 * spring.datasource.password=***
 * spring.datasource.username=a***z***
 *     <dependency>
 *       <groupId>mysql</groupId>
 *       <artifactId>mysql-connector-java</artifactId>
 *       <version>8.0.19</version>
 *     </dependency>
 */
public class RemoteHostService {

            ps.execute();


            ps.close();


            conn.close();


        } catch (SQLException e) {


            e.printStackTrace();


            return false;


        }


        return true;


    }


}