可以jsoup处理元刷新重定向 [英] can jsoup handle meta refresh redirect

问题描述

我有一个问题，使用jsoup，我想要做的是从网址获取一个文件，它将重定向到另一个网址，基于元刷新网址，这是无法正常工作，清楚地解释我是否输入了一个名为<的网站网址a href =http://www.amerisourcebergendrug.com =noreferrer> http://www.amerisourcebergendrug.com 将自动重定向到 http://www.amerisourcebergendrug.com/abcdrug/ 取决于元刷新网址，但我的jsoup仍然坚持使用 http://www.amerisourcebergendrug.com 而不是从 http://www.amerisourcebergendrug.com/abcdrug/

I have a problem using jsoup what I am trying to do is fetch a document from the url which will redirect to another url based on meta refresh url which is not working, to explain clearly if I am entering a website url named http://www.amerisourcebergendrug.com which will automatically redirect to http://www.amerisourcebergendrug.com/abcdrug/ depending upon the meta refresh url but my jsoup is still sticking with http://www.amerisourcebergendrug.com and not redirecting and fetching from http://www.amerisourcebergendrug.com/abcdrug/

Document doc = Jsoup.connect("http://www.amerisourcebergendrug.com").get();

我也尝试过使用，

Document doc = Jsoup.connect("http://www.amerisourcebergendrug.com").followRedirects(true).get();

但两者都不起作用

任何解决方法？

更新：
页面可能使用元刷新重定向方法

Update: The Page may use meta refresh redirect methods

推荐答案

更新（不区分大小写并且具有良好的容错能力）

• 解析的内容（几乎）根据规范


• 应首先成功解析内容元数据



Update (case insensitive and pretty fault tolerant)

• The content parsed (almost) according to spec
• The first successfully parsed content meta data should be used

public static void main(String[] args) throws Exception {

    URI uri = URI.create("http://www.amerisourcebergendrug.com");

    Document d = Jsoup.connect(uri.toString()).get();

    for (Element refresh : d.select("html head meta[http-equiv=refresh]")) {

        Matcher m = Pattern.compile("(?si)\\d+;\\s*url=(.+)|\\d+")
                           .matcher(refresh.attr("content"));

        // find the first one that is valid
        if (m.matches()) {
            if (m.group(1) != null)
                d = Jsoup.connect(uri.resolve(m.group(1)).toString()).get();
            break;
        }
    }
}

输出正确：

http://www.amerisourcebergendrug.com/abcdrug/





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旧答案：





你确定不行吗？ 。对我来说：

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Old answer:

Are you sure that it isn't working. For me:

System.out.println(Jsoup.connect("http://www.ibm.com").get().baseUri());

..输出 http://www.ibm.com/us/ en / 正确..

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