Question

我正在我的Android应用中建立登录名。我正在尝试使我的应用程序使用凌空与Node.JS服务器通信以发出网络请求。 node.js服务器已经安装并且正在运行。我确保我的PC和Android手机在同一网络上（我真的不知道这是否有必要）。此外，Mongo DB也已设置并正在运行。但是当我尝试登录时收到错误响应。这是我的代码：

login.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String getLoginEmail = loginEmail.getText().toString();
            String getLoginPassword = loginPassword.getText().toString();

            if (!TextUtils.isEmpty(getLoginEmail) && !TextUtils.isEmpty(getLoginPassword)) {
                loginUser(getLoginEmail, getLoginPassword);
            } else if...
        }
    });...


private void loginUser(final String gottenLoginEmail, final String gottenLoginPassword) {
    final ProgressDialog progressDialog = new ProgressDialog(LoginActivity.this);
    progressDialog.setMessage(getString(R.string.logging_in));
    progressDialog.setCanceledOnTouchOutside(false);
    progressDialog.show();

    StringRequest stringRequest = new StringRequest(Request.Method.POST, Constants.URL_LOGIN, new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            Log.i("onResponse", response);
            progressDialog.dismiss();
            try {
                JSONObject jsonObject = new JSONObject(response);
                Log.i("Response", response); //logged response

                //check if response at first position (index 0) equals success
                if (jsonObject.names().get(0).equals("success")) {
                    startActivity(new Intent(LoginActivity.this, MainActivity.class));
                    finish();
                } else {
                    ...
                }

            } catch (JSONException e) {
                Log.i("Exception", e.getMessage()); //logged exception
                Snackbar.make(findViewById(R.id.login_activity), e.getMessage(), Snackbar.LENGTH_LONG).show();
            }
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Log.i("Error", "ERRROR: " + error.getMessage()); //logged error. Refer to debugger image below
            progressDialog.dismiss();
            Snackbar.make(findViewById(R.id.login_activity), error.getMessage(), Snackbar.LENGTH_SHORT).show();
        }
    }) {
        @Override
        protected Map<String, String> getParams() throws AuthFailureError {
            Map<String, String> params = new HashMap<>();
            params.put("email", gottenLoginEmail);
            params.put("password", gottenLoginPassword);
            return params;
        }
    };
    RequestHandler.getInstance(LoginActivity.this).addToRequestQueue(stringRequest);
}

在我的Constants Java类中，我有以下内容：

public class Constants {

public static final String ROOT_URL = "http://192.168.43.1:5000/api/user/auth/";
public static final String URL_LOGIN = ROOT_URL + "signin";
public static final String URL_REGISTER = ROOT_URL + "signup";

//192.168.43.1 is the DHCP server of the network my pc and android phone is connected to
//5000 is the node.js application port i.e. localhost:5000

}

请帮助我。我已经为此战斗了三天...

当我运行该应用程序时，我会在调试器控制台中得到它

API端点登录路径为“ localhost：5000 / api / user / auth / signin”。

Answer 1

我认为您的麻烦是防火墙尝试禁用它如果您的OC是Windows，请遵循本指南https://www.youtube.com/watch?v=dlBgoVMXIWo

Android应用与Node.Js服务器和MongoDB通信

1 个答案: