使用jsoup.connect

Question

我在edittext中使用textwatcher来验证字符串是否为url

  if (Patterns.WEB_URL.matcher(url).matches()) {

并将此url传递给asynctask where

  @Override
    protected Void doInBackground(String... params) {
        try {
            while (!isCancelled()) {
                // Connect to the web site
                    document = Jsoup.connect(URLEncoder.encode(URL, "UTF-8"))
                            .userAgent("Mozilla").get();

            }

但是在edittext中键入m.go时，我得到一个malformedURLException：

java.net.MalformedURLException：无协议：M.go

我也试图捕捉异常

 catch (SocketTimeoutException ex) {
            ex.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

你可以帮我解决一个问题，因为应用程序每次都会崩溃

CompleteLog：

E / UncaughtException：java.lang.RuntimeException：执行doInBackground（）时发生错误                                                                       在android.os.AsyncTask $ 3.done（AsyncTask.java:325）                                                                       在java.util.concurrent.FutureTask.finishCompletion（FutureTask.java:354）                                                                       at java.util.concurrent.FutureTask.setException（FutureTask.java:223）                                                                       在java.util.concurrent.FutureTask.run（FutureTask.java:242）                                                                       at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1133）                                                                       at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:607）                                                                       在java.lang.Thread.run（Thread.java:761）                                                                    引起：java.lang.IllegalArgumentException：格式错误的URL：M.go                                                                       在org.jsoup.helper.HttpConnection.url（HttpConnection.java:101）                                                                       在org.jsoup.helper.HttpConnection.connect（HttpConnection.java:43）                                                                       在org.jsoup.Jsoup.connect（Jsoup.java:73）                                                                       在                                                                       在android.os.AsyncTask $ 2.call（AsyncTask.java:305）                                                                       在java.util.concurrent.FutureTask.run（FutureTask.java:237）                                                                       at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1133）                                                                       at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:607）                                                                       在java.lang.Thread.run（Thread.java:761）                                                                    引起：java.net.MalformedURLException：无协议：M.go                                                                       在java.net.URL。（URL.java:589）                                                                       在java.net.URL。（URL.java:486）                                                                       在java.net.URL。（URL.java:435）                                                                       在org.jsoup.helper.HttpConnection.url（HttpConnection.java:99）                                                                       在org.jsoup.helper.HttpConnection.connect（HttpConnection.java:43）                                                                       在org.jsoup.Jsoup.connect（Jsoup.java:73）                                                                       在                                                                       在                                                                       在android.os.AsyncTask $ 2.call（AsyncTask.java:305）                                                                       在java.util.concurrent.FutureTask.run（FutureTask.java:237）                                                                       at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1133）                                                                       at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:607）                                                                       在java.lang.Thread.run（Thread.java:761）