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書名： INSTANT Jsoup How-to
作者名： Pete Houston
本章字?jǐn)?shù)： 186字
更新時(shí)間： 2021-08-20 16:52:35

How it works...

Basically, all the inputs will be given to the Jsoup class to parse.

For an HTML string, you just need to pass the HTML string as parameter for the method Jsoup.parse().

For an HTML file, there are three parameters inputted for Jsoup.parse(). The first one is the file object, which points to the specified HTML file; the second one is the character set of the file. There is an overload of this method with an additional third parameter, Jsoup.parse(File file, String charsetName, String baseUri). The baseUri URL is the URL from where the HTML file is retrieved; it is used to resolve relative paths or links.

For a URL, you need to use the Jsoup.connect() method. Once the connection succeeds, it will return an object, thus implementing the connection interface. Through this, you can easily get the content of the URL page using the Connection.get() method.

The previous example is pretty easy and straightforward. The results of parsing from the Jsoup class will return a Document object, which represents a DOM structure of an HTML page, where the root node starts from <html>.

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INSTANT Jsoup How-to

How it works...