用Jsoup打开连接，获取状态码并解析文档

2022-01-24 00:00:00 connection java jsoup

我正在使用 jsoup 创建一个类，它将执行以下操作:

I'm creating a class using jsoup that will do the following:

  1. 构造函数打开一个到 url 的连接.
  2. 我有一个方法可以检查页面的状态.即 200、404 等.
  3. 我有一个方法可以解析页面并返回一个 url 列表.#

以下是我正在尝试做的粗略工作，不是很粗略，因为我一直在尝试很多不同的事情

Below is a rough working of what I am trying to do, not its very rough as I've been trying a lot of different things

public class ParsePage {
private String path;
Connection.Response response = null;

private ParsePage(String langLocale){
    try {
        response = Jsoup.connect(path)
                .userAgent("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.21 (KHTML, like Gecko) Chrome/19.0.1042.0 Safari/535.21")
                .timeout(10000)
                .execute();
    } catch (IOException e) {
        System.out.println("io - "+e);
    }
}

public int getSitemapStatus(){
    int statusCode = response.statusCode();
    return statusCode;
}

public ArrayList<String> getUrls(){
    ArrayList<String> urls = new ArrayList<String>();

 }
}

如您所见，我可以获取页面状态，但是使用构造函数中已经打开的连接我不知道如何获取要解析的文档，我尝试使用:

As you can see I can get the page status, but using the already open connection from the constructor I don't know how to get the document to parse, I tried using:

Document doc = connection.get();

但那是不行的.有什么建议?或者有更好的方法来解决这个问题?

But that's a no go. Any suggestions? Or better ways to go about this?

推荐答案

如 Connection.Response 类型，有一个 parse() 方法将响应的主体解析为 Document 并返回它.当你拥有它时，你可以用它做任何你想做的事情.

As stated in the JSoup Documentation for the Connection.Response type, there is a parse() method that parse the response's body as a Document and returns it. When you have that, you can do whatever you want with it.

例如看getUrls()

public class ParsePage {
   private String path;
   Connection.Response response = null;

   private ParsePage(String langLocale){
      try {
         response = Jsoup.connect(path)
            .userAgent("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.21 (KHTML, like Gecko) Chrome/19.0.1042.0 Safari/535.21")
            .timeout(10000)
            .execute();
      } catch (IOException e) {
         System.out.println("io - "+e);
      }
   }

   public int getSitemapStatus() {
      int statusCode = response.statusCode();
      return statusCode;
   }

   public ArrayList<String> getUrls() {
      ArrayList<String> urls = new ArrayList<String>();
      Document doc = response.parse();
      // do whatever you want, for example retrieving the <url> from the sitemap
      for (Element url : doc.select("url")) {
         urls.add(url.select("loc").text());
      }
      return urls;
   }
}

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