java - 我应该生成异常消息吗？

Question

我应该生成异常消息(在我的示例中来自 link 参数)还是我的构造函数应该采用 message 参数？

class ReadFromNotConnectedInputException extends RuntimeException {

    private String link;

    public ReadFromNotConnectedInputException(final String link)
    {
        this.link = link;
    }

    public String getLink()
    {
        return link
    }

    public String getMessage()
    {
        return String.format("Cannot read from link \"%\", link not connected.", link);
    }
}

Answer 1

我会像下面这样写。但是，如果我要努力创建一个异常，我会将其设为已检查的异常。

class ReadFromNotConnectedInputException extends RuntimeException {
    private final String link;

    public ReadFromNotConnectedInputException(final String link) {
        super("Cannot read from link \"" + link + "\", link not connected.");
        this.link = link;
    }

    public String getLink() {
        return link
    }
}

或

class ReadFailedLinkNotConnectedException extends Exception {
    public ReadFailedLinkNotConnectedException (final String link) {
        super(link);
    }
}