Question

我正在研究android中的HTTP帖子。这是我的代码：

 SendMail sending = (SendMail) new SendMail()
                                .execute(url + "/mob/android/dummy.php");


    public class SendMail extends AsyncTask<String, String, String> {

    private String endResult;

    @Override
    protected String doInBackground(String... val) {
        String url = val[0];
        Log.i("Url", url + "");

        HttpClient httpclient = new DefaultHttpClient();

        HttpPost httppost = new HttpPost(url);

        try {

            CookieStore cookieStore = new BasicCookieStore();
            ((AbstractHttpClient) httpclient).setCookieStore(cookieStore);

            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("name", post_name));
            nameValuePairs


            nameValuePairs.add(new BasicNameValuePair("email", post_email));
            nameValuePairs.add(new BasicNameValuePair("message",
                    "Requesting appointment from: " + SelectedDr
                            + "  Message: " + post_message));

            Log.i("nameValuePairs:", "" + nameValuePairs);

            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            HttpResponse response = httpclient.execute(httppost);
            BasicResponseHandler myHandler = new BasicResponseHandler();
            endResult = myHandler.handleResponse(response);
            Log.i("nameValuePairs", "" + nameValuePairs);
            Log.i("endResult", "" + endResult);
        } catch (ClientProtocolException e) {

        } catch (IOException e) {

        }

        return null;
    }

    @Override
    protected void onPostExecute(String result) {

        super.onPostExecute(result);
        publishProgress(endResult);

    }

    @Override
    protected void onProgressUpdate(String... values) {

        super.onProgressUpdate(values);
        String result = values[0];

        T_warning.setText("Mail Sent.");
        ET_email.setText("");
        ET_name.setText("");

        ET_message.setText("");





    }

}

现在直到

nameValuePairs.add(new BasicNameValuePair("message",
                "Requesting appointment from: " + SelectedDr
                        + "  Message: " + post_message));

它正常工作但是在HttpResponse response = httpclient.execute（httppost）; 3分钟后它没有给出响应它发送邮件但在我的邮件服务器上我没有收到任何邮件，也显示异常：

org.apache.http.NoHttpResponseException：目标服务器无法响应

我很困惑，我无法理解为什么会发生这种情况我添加了所有权限

logcat的：

04-05 10:41:57.110: I/exception(3926): org.apache.http.NoHttpResponseException: The target server failed to respond

04-05 10:41:57.110: I/endResult(3926): null

编辑的代码提供了LOGCAT：

04-05 10:51:17.160: W/System.err(4016): org.apache.http.NoHttpResponseException: The target server failed to respond

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:85)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:174)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:180)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:235)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:259)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:279)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:121)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:428)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:653)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:627)

04-05 10:51:17.170: W/System.err(4016):     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:616)

04-05 10:51:17.170: W/System.err(4016):     at com.ilmasoft.alina_dental.MailUs$SendMail.doInBackground(MailUs.java:492)

04-05 10:51:17.180: W/System.err(4016):     at com.ilmasoft.alina_dental.MailUs$SendMail.doInBackground(MailUs.java:1)

04-05 10:51:17.180: W/System.err(4016):     at android.os.AsyncTask$2.call(AsyncTask.java:252)

04-05 10:51:17.180: W/System.err(4016):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)

04-05 10:51:17.180: W/System.err(4016):     at java.util.concurrent.FutureTask.run(FutureTask.java:137)

04-05 10:51:17.180: W/System.err(4016):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1081)

04-05 10:51:17.180: W/System.err(4016):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:574)

04-05 10:51:17.180: W/System.err(4016):     at java.lang.Thread.run(Thread.java:1020)

Answer 1

在doInBackground中尝试此代码

    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("name", post_name));
nameValuePairs.add(new BasicNameValuePair("email", post_email));
            nameValuePairs.add(new BasicNameValuePair("message",
                    "Requesting appointment from: " + SelectedDr
                            + "  Message: " + post_message));

        DefaultHttpClient hc = new DefaultHttpClient();
            ResponseHandler<String> res = new BasicResponseHandler();
            HttpPost postMethod = new HttpPost(url);
            String response = null;

            try {
                postMethod.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            } catch (UnsupportedEncodingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            try {
                response = hc.execute(postMethod, res);
            } catch (ClientProtocolException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

总是收到org.apache.http.NoHttpResponseException：目标服务器无法响应Android

1 个答案: