如何在java中设置文档对象的解析持续时间限制

发布于 2024-11-15 05:09:32 字数 389 浏览 6 评论 0原文

我在java中使用Jtidy解析器。这是我的代码...

  URL url = new URL("www.yahoo.com");
  HttpURLConnection conn = (HttpURLConnection) url.openConnection();
  InputStream in = conn.getInputStream();
  Tidy tidy = new Tidy();
  Document doc = tidy.parseDOM(in, null);

当我看到这个语句Document doc = tidy.parseDOM(in, null);时，它花费了太多时间来解析页，所以我想设置文档对象的时间限制。请帮我看看如何设置时间。

原文

I am using Jtidy parser in java.Here is my code...

  URL url = new URL("www.yahoo.com");
  HttpURLConnection conn = (HttpURLConnection) url.openConnection();
  InputStream in = conn.getInputStream();
  Tidy tidy = new Tidy();
  Document doc = tidy.parseDOM(in, null);

when I come to this statement Document doc = tidy.parseDOM(in, null);,it is taking too much time to parse the page, so I want to set the time limit to document object. Please help me, how to set time.

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黑白记忆 2024-11-22 05:09:32

您可以使用 java.util.Executors 框架并向其提交限时任务。

下面是一些代码来演示这一点：

// Note that these variables must be declared final to be accessible to task
final InputStream in = conn.getInputStream();
final Tidy tidy = new Tidy();

ExecutorService service = Executors.newSingleThreadExecutor();
// Create an anonymous class that will be submitted to the service and returns your result
Callable<Document> task = new Callable<Document>() {
    public Document call() throws Exception {
        return tidy.parseDOM(in, null);
    }
};
Future<Document> future = service.submit(task);
// Future.get() offers a timed version that may throw a TimeoutException
Document doc = future.get(10, TimeUnit.SECONDS);

You could use the java.util.Executors framework and submit a time-limited task to it.

Here's some code that demonstrates this:

// Note that these variables must be declared final to be accessible to task
final InputStream in = conn.getInputStream();
final Tidy tidy = new Tidy();

ExecutorService service = Executors.newSingleThreadExecutor();
// Create an anonymous class that will be submitted to the service and returns your result
Callable<Document> task = new Callable<Document>() {
    public Document call() throws Exception {
        return tidy.parseDOM(in, null);
    }
};
Future<Document> future = service.submit(task);
// Future.get() offers a timed version that may throw a TimeoutException
Document doc = future.get(10, TimeUnit.SECONDS);

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