Question

我一直在尝试构建一个Android应用程序。我正在尝试将“mobile_num”存储在数据库中。我正在使用GET方法发送数据。但是，client.connect（）不会工作。我尽力纠正它并发现错误，但我的所有尝试都失败了。我想就如何纠正错误提出一些建议。

代码：

公共类Mobile_num扩展了AppCompatActivity {

/**
 * ATTENTION: This was auto-generated to implement the App Indexing API.
 * See https://g.co/AppIndexing/AndroidStudio for more information.
 */
private GoogleApiClient client;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_mobile_num);
    // ATTENTION: This was auto-generated to implement the App Indexing API.
    // See https://g.co/AppIndexing/AndroidStudio for more information.
    client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}

public void m_sign_in(View view) {
    final EditText num = (EditText) findViewById(R.id.txt_mob);
    try {
        String mob_val = URLEncoder.encode(num.getText().toString(), "UTF-8");

        RequestParams params = new RequestParams();
        params.put("app", "user");
        params.put("method", "register");
        params.put("mobile_no", mob_val);

        String tag = "play";
        Log.i(tag, "num :" + params);

        new signin_process().execute(params);
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }
}

@Override
public void onStart() {
    super.onStart();

    // ATTENTION: This was auto-generated to implement the App Indexing API.
    // See https://g.co/AppIndexing/AndroidStudio for more information.
    client.connect();
    Action viewAction = Action.newAction(
            Action.TYPE_VIEW, // TODO: choose an action type.
            "Mobile_num Page", // TODO: Define a title for the content shown.
            // TODO: If you have web page content that matches this app activity's content,
            // make sure this auto-generated web page URL is correct.
            // Otherwise, set the URL to null.
            Uri.parse("http://host/path"),
            // TODO: Make sure this auto-generated app URL is correct.
            Uri.parse("android-app://com.example.playtym.playtym/http/host/path")
    );
    AppIndex.AppIndexApi.start(client, viewAction);
}

@Override
public void onStop() {
    super.onStop();

    // ATTENTION: This was auto-generated to implement the App Indexing API.
    // See https://g.co/AppIndexing/AndroidStudio for more information.
    Action viewAction = Action.newAction(
            Action.TYPE_VIEW, // TODO: choose an action type.
            "Mobile_num Page", // TODO: Define a title for the content shown.
            // TODO: If you have web page content that matches this app activity's content,
            // make sure this auto-generated web page URL is correct.
            // Otherwise, set the URL to null.
            Uri.parse("http://host/path"),
            // TODO: Make sure this auto-generated app URL is correct.
            Uri.parse("android-app://com.example.playtym.playtym/http/host/path")
    );
    AppIndex.AppIndexApi.end(client, viewAction);
    client.disconnect();
}

private class signin_process extends AsyncTask<RequestParams, Void, String> {
    @Override
    protected String doInBackground(RequestParams... params) {
        try {
            //RequestParams params = new RequestParams();

            String tag = "play";
            Log.i(tag, "Async :" + Arrays.toString(params));

            get_response(params);

        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }


    private void get_response(RequestParams[] params) throws IOException {
        try {
            String tag = "play";
            Log.i(tag, "get_response :" + Arrays.toString(params));

            String str = Arrays.toString(params);
            // str.replaceAll("/^[[]$/", "");

            String paramstr = URLEncoder.encode(Arrays.toString(params), "UTF-8");
            paramstr= paramstr.replaceAll("%5D","");
            paramstr= paramstr.replaceAll("%5B","");
            paramstr= paramstr.replaceAll("%3D","=");
            paramstr= paramstr.replaceAll("%26","&");

            Log.i(tag, "parm_str : " + paramstr);


            //URL url = new URL("http://192.168.0.111/playtym/v1/int/api.php");
          // String url_s = "http://192.168.0.111/playtym/v1/int/api.php";
            String url_s = "http://localhost/int/api.php";

            url_s += "?" + paramstr;
            //System.out.println(new java.net.URI(url_s).getPath());

            Log.i(tag, "url_s :" + url_s);

            URL url = new URL(url_s);

            HttpURLConnection client = (HttpURLConnection) url.openConnection();
            client.setRequestMethod("GET");
            client.setDoOutput(true);
            client.setDoInput(true);
            client.setRequestProperty("Content-Type", "application/json");
            //request
            // OutputStreamWriter out = new OutputStreamWriter(client.getOutputStream());
            //out.write(params.toString());
            client.connect();


            // InputStreamReader in = new InputStreamReader()

            int status = client.getResponseCode();
            Log.i(tag, "Status :" + status);

        } catch (ConnectException e)
        {
            Log.e("Play", "Exe", e);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

}

ERROR：

07-23 23：53：26.511：E / Play（23879）：Exe

07-23 23：53：26.511：E / Play（23879）：java.net.ConnectException：30000ms后无法连接到localhost / 127.0.0.1（端口80）：isConnected失败：ECONNREFUSED（拒绝连接）< / p>
07-23 23：53：26.511：E / Play（23879）：at libcore.io.IoBridge.isConnected（IoBridge.java:241）

07-23 23：53：26.511：E / Play（23879）：at libcore.io.IoBridge.connectErrno（IoBridge.java:174）

07-23 23：53：26.511：E / Play（23879）：at libcore.io.IoBridge.connect（IoBridge.java:122）

07-23 23：53：26.511：E / Play（23879）：at java.net.PlainSocketImpl.connect（PlainSocketImpl.java:183）

07-23 23：53：26.511：E / Play（23879）：at java.net.PlainSocketImpl.connect（PlainSocketImpl.java:456）

07-23 23：53：26.511：E / Play（23879）：at java.net.Socket.connect（Socket.java:882）

07-23 23：53：26.511：E / Play（23879）：at com.android.okhttp.internal.Platform.connectSocket（Platform.java:139）

07-23 23：53：26.511：E / Play（23879）：at com.android.okhttp.Connection.connect（Connection.java:152）

07-23 23：53：26.511：E / Play（23879）：at com.android.okhttp.internal.http.HttpEngine.connect（HttpEngine.java:279）

07-23 23：53：26.511：E / Play（23879）：at com.android.okhttp.internal.http.HttpEngine.sendRequest（HttpEngine.java:213）

07-23 23：53：26.511：E / Play（23879）：at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute（HttpURLConnectionImpl.java:373）

07-23 23：53：26.511：E / Play（23879）：at com.android.okhttp.internal.http.HttpURLConnectionImpl.connect（HttpURLConnectionImpl.java:106）

07-23 23：53：26.511：E / Play（23879）：at com.example.playtym.playtym.Mobile_num $ signin_process.get_response（Mobile_num.java:154）

07-23 23：53：26.511：E / Play（23879）：at com.example.playtym.playtym.Mobile_num $ signin_process.doInBackground（Mobile_num.java:109）

07-23 23：53：26.511：E / Play（23879）：at com.example.playtym.playtym.Mobile_num $ signin_process.doInBackground（Mobile_num.java:100）

07-23 23：53：26.511：E / Play（23879）：在android.os.AsyncTask $ 2.call（AsyncTask.java:288）

07-23 23：53：26.511：E / Play（23879）：at java.util.concurrent.FutureTask.run（FutureTask.java:237）

07-23 23：53：26.511：E / Play（23879）：在android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:231）

07-23 23：53：26.511：E / Play（23879）：at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1112）

07-23 23：53：26.511：E / Play（23879）：at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:587）

07-23 23：53：26.511：E / Play（23879）：at java.lang.Thread.run（Thread.java:818）

07-23 23：53：26.511：E / Play（23879）：引起：android.system.ErrnoException：isConnected失败：ECONNREFUSED（拒绝连接）

07-23 23：53：26.511：E / Play（23879）：at libcore.io.IoBridge.isConnected（IoBridge.java:226）

07-23 23：53：26.511：E / Play（23879）：... 20多

Answer 1

String url_s = "http://localhost/int/api.php";

您的手机是否正在运行服务器？您正在获得拒绝连接，因为localhost是您运行该代码的设备。

client.connect（）无效

1 个答案: