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将从HTTPClient检索到的数据用于JSoup(Use data retrieved from HTTPClient into JSoup)

我正在使用HTTPClient连接到一个网站。以下代码片段用于此目的:

 byte[] responseBody = method.getResponseBody();
 System.out.println(new String(responseBody));

上面的代码显示了网站的html代码。 此外,我想访问代码中的一些数据,我可以使用以下代码片段使用JSoup访问该代码:

Document doc = Jsoup.connect(url).get();

在上面的代码中,我使用“url”直接指定了网站的网址。 这意味着如果我使用JSoup,我不需要HTTPClient。 有没有办法可以使用HTTPClient检索的“responseBody”集成在JSoup代码中,这样我就不必使用Document doc = Jsoup.connect(url).get();

谢谢


I am using HTTPClient to connect to a website.The following snippet of code is used for this purpose:

 byte[] responseBody = method.getResponseBody();
 System.out.println(new String(responseBody));

The above code displays the html code of website. Further I wanted to access only some data from the code which I was able to access using JSoup using following code snippet:

Document doc = Jsoup.connect(url).get();

In the above code I have directly specified url of website using "url". which means I do not require HTTPClient if I use JSoup. Is there a way I can use " responseBody" retrieved using HTTPClient to be integrated in JSoup code so that I do not have to use Document doc = Jsoup.connect(url).get();

Thanks


原文:https://stackoverflow.com/questions/21849853
更新时间:2022-04-17 16:04

最满意答案

通过在DocDB使用抽象类型转换O并使用类型投影,我获得了一些成功:

trait DocDB {
  type O
  def searchFor[I](
    docs: Iterable[I],
    queryStrategy: QueryStrategy[I, DocDB]
  ): Iterable[(I,O)]
}

trait QueryStrategy[I, +F <: DocDB]

class In  // class of input documents
class Out // class of output documents

object MyDocDB extends DocDB {

  type O = Out
  def searchFor[I](
    docs: Iterable[I], 
    queryStrategy: QueryStrategy[I, DocDB]
  ) = List()
}

implicit object MyQueryStrategy extends QueryStrategy[In, MyDocDB.type]

implicit def listExt[I] (items: Iterable[I]) = new {
  def findAt[F <: DocDB](docDB: F) = new {
    def apply(implicit queryStrategy: QueryStrategy[I, F]): 
    Iterable[(I,F#O)] = {
      docDB.searchFor[I](items, queryStrategy)
    }
  }
}

它似乎工作:

scala> val out1: Iterable [(In,Out)] = List[In]() findAt MyDocDB apply
out1: Iterable[(In, Out)] = List()

I have some success by turning O in an abstract type in DocDB and using type projection:

trait DocDB {
  type O
  def searchFor[I](
    docs: Iterable[I],
    queryStrategy: QueryStrategy[I, DocDB]
  ): Iterable[(I,O)]
}

trait QueryStrategy[I, +F <: DocDB]

class In  // class of input documents
class Out // class of output documents

object MyDocDB extends DocDB {

  type O = Out
  def searchFor[I](
    docs: Iterable[I], 
    queryStrategy: QueryStrategy[I, DocDB]
  ) = List()
}

implicit object MyQueryStrategy extends QueryStrategy[In, MyDocDB.type]

implicit def listExt[I] (items: Iterable[I]) = new {
  def findAt[F <: DocDB](docDB: F) = new {
    def apply(implicit queryStrategy: QueryStrategy[I, F]): 
    Iterable[(I,F#O)] = {
      docDB.searchFor[I](items, queryStrategy)
    }
  }
}

It seems to work:

scala> val out1: Iterable [(In,Out)] = List[In]() findAt MyDocDB apply
out1: Iterable[(In, Out)] = List()

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