Question

我遇到了httpclient的问题。我调试了应用程序，并在调用execute函数时崩溃了。这是代码：

public class MyAsyncTask extends AsyncTask<String, String, String> {
GridView mGridView;
Activity mContex;

public MyAsyncTask(Activity contex) {
    this.mContex = contex;
}

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

    //fetch data

    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost("localhost:3000/api/send");

    try {
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        nameValuePairs.add(new BasicNameValuePair("email", params[1]));
        nameValuePairs.add(new BasicNameValuePair("name", params[0]));
        nameValuePairs.add(new BasicNameValuePair("gender", "male"));
        nameValuePairs.add(new BasicNameValuePair("result", "lazy bee"));
        nameValuePairs.add(new BasicNameValuePair("age", "28"));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

        HttpResponse response = httpclient.execute(httppost);

    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
    } catch (IOException e) {
        // TODO Auto-generated catch block
    }

    return "success";
}
}

我在这里调用MyAsyncTask，从片段传递活动：

public class SendResultPageFragment extends Fragment implements View.OnClickListener {

EditText name, email;
MyAsyncTask task;

public static SendResultPageFragment newInstance() {
    return new SendResultPageFragment();
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.fragment_screen_slide_send_result, container, false);

    rootView.findViewById(R.id.result_next_button).setOnClickListener(this);

    name = (EditText)rootView.findViewById(R.id.name_txt);
    email = (EditText)rootView.findViewById(R.id.email_txt);

    return rootView;
}

@Override
public void onClick(View view) {
    this.task = new MyAsyncTask(getActivity());
    this.task.execute(this.name.getText().toString(), this.email.getText().toString());
    return ;
    }
}

有人知道解决方案吗？感谢

Answer 1

new HttpPost("localhost:3000/api/send");每个http请求都需要完全限定。也不要使用本地host.Android不会识别你的端点那样。我总是用ngrok向互联网广播。切换到

new HttpPost("http://your_domain");

也切换到retrofit2，它使用java注释来组成其请求。强烈推荐。这是一个很好的链接：https://futurestud.io/tutorials/retrofit-getting-started-and-android-client

Android：在AsyncTask中执行httpclient.execute时应用程序崩溃

1 个答案: