如何使用 IP 地址（通过 InetAddress）通过 JDBC 建立与 MySQL 的连接？

Question

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package inventory;

import java.net.InetAddress;
import java.sql.Connection;
import java.sql.DriverManager;

/**
 *
 * @author Imantha
 */
public class dbcon {

  public static Connection createmyConnection() throws Exception{

    InetAddress ip=InetAddress.getLocalHost();
    String s=ip.getHostAddress();
    Class.forName("com.mysql.jdbc.Driver");
    Connection c = DriverManager.getConnection("jdbc:mysql://localHost:3306/inventory","root","123");   
    return c;
 }
}

How can i use ip addre which find from using InerAddress for connect with MySQL via JDBC?

I want to replace local host and add s(which catch ip address)

Answer 1

You can't. You don't need to use InetAddress with JDBC. You just need to construct a correct JDBC URL.

You also haven't needed the Class.forName() line since 2007.

Answer 2

If only replacing it what you want, then

Connection c=DriverManager.getConnection("jdbc:mysql://"+s+"/inventory","root","123");

Just change the connection URL to take IP address which is stored in variable s