Question

我是quasar的新手，我尝试过这样做。基本上我得到一个警告，纤维阻塞了一个线程。为什么？我可以不做下面的事吗？

由于

//in my my testclass I have this
String websites[] = {"http://www.google.com",""http://www.lol.com",""http://www.somenoneexistantwebsite.com"};
            for(int i=0; i < websites.length ; i++){
            TestApp.getWebsiteHTML(websites[i]); 
            }


//in TestApp

     public static void getWebsiteHTML(String webURL) throws IOException, InterruptedException, Exception {
            new Fiber<Void>(new SuspendableRunnable() {
                @Override
                public void run() throws SuspendExecution, InterruptedException {
                WebInfo mywi = new WebInfo();
                mywi.getHTML(webURL);
                }
            }).start().join();
        }        

//in WebInfo
      public static String getHTML(String urlToRead) throws Exception {
          StringBuilder result = new StringBuilder();
          URL url = new URL(urlToRead);
          HttpURLConnection conn = (HttpURLConnection) url.openConnection();
          conn.setRequestMethod("GET");
          BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
          String line;
          while ((line = rd.readLine()) != null) {
             result.append(line);
          }
          rd.close();
          return result.toString();
       }

Answer 1

查看docs中的“失控光纤”子部分。

HttpURLConnection是线程阻塞的，所以为了避免从光纤调度程序中窃取线程太长时间（这有可能会破坏基于Quasar的应用程序的性能），你应该使用HTTP client integrated with Quasar（或者integrate one yourself）。

类星体多纤维警告

1 个答案: