java - 将java连接到亚马逊服务器中的MYSQL数据库

Question

我正在尝试将我的java代码与亚马逊中的mysql数据库连接rds，我正在使用以下代码:

        try {
        Class.forName("com.mysql.jdbc.Driver").newInstance();
        connection = DriverManager.getConnection(
        "jdbc:mysql://HOST:port_number/DB_name","DB_username", "DB_pass");
        st = connection.createStatement();
        rs = st.executeQuery("SELECT * FROM table name WHERE id = 1");
    } catch (Exception e) {
        System.out.println("DB error : " + e);
    }

当我运行它时，我收到此错误:

DB error : java.sql.SQLException: Unable to connect to any hosts due to exception: java.net.SocketException: java.net.SocketException: Permission denied: connect

** BEGIN NESTED EXCEPTION ** 

java.net.SocketException
MESSAGE: java.net.SocketException: Permission denied: connect

STACKTRACE:

java.net.SocketException: java.net.SocketException: Permission denied: connect
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:143)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:225)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:1805)
at com.mysql.jdbc.Connection.<init>(Connection.java:452)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:411)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at DB.<init>(DB.java:15)
at subgroup.main(subgroup.java:72)


** END NESTED EXCEPTION **

任何想法!!

Answer 1

您需要授予对您尝试读取数据库的计算机的访问权限。

您还应该使用命令提示符授予对您的 IP 的访问权限。

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html