Question

我见过其他人有这个问题，但我不清楚如何解决这个问题。实际上我的代码在将Android更新到第22版之前已经工作了21个。希望那里有人有类似的经历。无论如何这是我的代码。

   @Override
protected JSONArray doInBackground(String...params) {



    HttpClient client = new DefaultHttpClient();
    String url = params[0] + "?longitude=" + curr_longitude + "&latitude=" + curr_lat;
HttpGet httpGet =  new HttpGet(url);
    StringBuilder builder = new StringBuilder();
    org.apache.http.HttpResponse response = null;
    try {
        response = client.execute(httpGet);
    } catch (ClientProtocolException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }


    try {

            StatusLine statusLine = response.getStatusLine();
            int statusCode = statusLine.getStatusCode();
            if (statusCode == 200) {
                HttpEntity entity = response.getEntity();
                InputStream content = entity.getContent();
                BufferedReader reader = new BufferedReader(new  InputStreamReader(content));
                String line;
                while ((line = reader.readLine()) != null) 
                {
                  builder.append(line);
                }//end while

                   JSONArray jsonarray = new JSONArray(builder.toString());

                 return jsonarray;


            }//end if

else {

           }}catch (Exception e){
               Log.e("log_tag", "Error in http connection" +e.getMessage());
           }//end try catch
           return null;

}//end function

这是logcat

    06-27 20:22:43.808: W/dalvikvm(29761): threadid=23: thread exiting with uncaught   exception (group=0x40da1930)
    06-27 20:22:43.808: E/AndroidRuntime(29761): FATAL EXCEPTION: AsyncTask #1
    06-27 20:22:43.808: E/AndroidRuntime(29761): java.lang.RuntimeException: An error occured while executing doInBackground()
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at android.os.AsyncTask$3.done(AsyncTask.java:299)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at java.util.concurrent.FutureTask.run(FutureTask.java:239)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at java.lang.Thread.run(Thread.java:856)
    06-27 20:22:43.808: E/AndroidRuntime(29761): Caused by: java.lang.IllegalStateException: Scheme 'htpp' not registered.
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.conn.scheme.SchemeRegistry.getScheme(SchemeRegistry.java:80)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.impl.conn.ProxySelectorRoutePlanner.determineRoute(ProxySelectorRoutePlanner.java:157)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:596)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:293)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at com.example.mapmapagain.MainActivity$GetfromServer.doInBackground(MainActivity.java:456)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at com.example.mapmapagain.MainActivity$GetfromServer.doInBackground(MainActivity.java:1)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    at                 java.util.concurrent.FutureTask.run(FutureTask.java:234)
    06-27 20:22:43.808: E/AndroidRuntime(29761):    ... 4 more

非常感谢你的帮助!!!

Answer 1

错误消息是：

Caused by: java.lang.IllegalStateException: Scheme 'htpp' not registered.

htpp似乎应该是http。检查您的网址。

HttpGet AsyncTask致命异常＃1

1 个答案: