连接到需要使用 Java 进行身份验证的远程 URL [英] Connecting to remote URL which requires authentication using Java

问题描述

如何在 Java 中连接到需要身份验证的远程 URL.我正在尝试找到一种方法来修改以下代码，以便能够以编程方式提供用户名/密码，这样它就不会抛出 401.

How do I connect to a remote URL in Java which requires authentication. I'm trying to find a way to modify the following code to be able to programatically provide a username/password so it doesn't throw a 401.

URL url = new URL(String.format("http://%s/manager/list", _host + ":8080"));
HttpURLConnection connection = (HttpURLConnection)url.openConnection();

推荐答案

您可以像这样为 http 请求设置默认验证器:

You can set the default authenticator for http requests like this:

Authenticator.setDefault (new Authenticator() {
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication ("username", "password".toCharArray());
    }
});

此外，如果您需要更大的灵活性，您可以查看 Apache HttpClient，这将为您提供更多身份验证选项(以及会话支持等)

Also, if you require more flexibility, you can check out the Apache HttpClient, which will give you more authentication options (as well as session support, etc.)

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