xml 连接到数据库

Posted 2021-05-16

import java.sql.*;
import java.sql.Connection;
import java.sql.DriverManager;

class Example{
public static void main(String args[]){
  String driver = "com.mysql.jdbc.Driver";
  String connection = "jdbc:mysql://localhost:3306/database_name";
  String user = "";
  String password = "";
  try{
  Class.forName(driver);
  Connection con = DriverManager.getConnection(connection, user, password);
  if (!con.isClosed()){
  Statement stmt = con.createStatement();
  
  ResultSet rs = stmt.executeQuery("SELECT * FROM employees");
  
  while(rs.next()){
  System.out.println(rs.getString("First_Name"));
  }
  }
  }catch(Exception e){
  System.out.println(e.getMessage());
  }
  }
}

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.38</version>
</dependency>