当我在 volley 中使用 JsonObjectRequest 进行 POST 请求调用时，然后在某些 wifi 上它正在发送空体。但它适用于 StringRequest POST 请求。它在所有移动网络上都运行良好。
我正在使用 node.js 服务器和 expressjs/body-parser。当我使用 Postman 发出 POST 请求时，一切正常。
错误是什么？如果有人想查看我可以提供的代码。
使用 StringRequest 的 POST 请求
private void LoginUser(final String email,final String pass) {
try {
/*Map<String, String> params = new HashMap<String, String>();
params.put("username", email);
params.put("password", pass);
JSONObject jsonParams = new JSONObject(params);*/
final StringRequest stringRequest = new StringRequest(Request.Method.POST, REGISTER_URL,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
//Toast.makeText(getApplicationContext(),response.toString(),Toast.LENGTH_LONG).show();
try
{
Log.i("Inside try", "yes");
JSONObject jsonResponse = new JSONObject(response).getJSONObject("user");
Log.i("User name",jsonResponse.getString("name"));
Constants.setClinicName(jsonResponse.getString("name"));
String TokenDB=new JSONObject(response).getString("token");
//Toast.makeText(getApplicationContext(),TokenDB,Toast.LENGTH_LONG).show();
if(pd.isShowing())
{
pd.dismiss();
}
//Maintaining LogIn data till user clicks LogOut
SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = app_preferences.edit();
editor.putString("Token",TokenDB);
//editor.putString("username", username);
editor.commit();
//Printing Token in Log in case of null token debugging
/*String status=manager.getPreferences(ClinicLogin.this,"token");
Log.d("token", status);
*/
Intent intent=new Intent(ClinicLogin.this,MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
startActivity(intent);
}catch (JSONException ks)
{
ks.printStackTrace();
Toast.makeText(getApplicationContext(),
"Oops! The Username & Password Do Not Match. Please try again!",
Toast.LENGTH_LONG).show();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// Handle Error
if(pd.isShowing()) {pd.dismiss();}
if (error instanceof TimeoutError || error instanceof NoConnectionError) {
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Network Error", Toast.LENGTH_SHORT).show();
} else if (error instanceof AuthFailureError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "User not authorized", Toast.LENGTH_SHORT).show();
} else if (error instanceof ServerError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Server error", Toast.LENGTH_SHORT).show();
} else if (error instanceof NetworkError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Network Error", Toast.LENGTH_SHORT).show();
} else if (error instanceof ParseError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Error consuming request", Toast.LENGTH_SHORT).show();
}
else error.printStackTrace();
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("username", email);
params.put("password", pass);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
stringRequest.setRetryPolicy(new DefaultRetryPolicy(
7000,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(stringRequest);
} catch (Exception e) {
e.printStackTrace();
}
}
使用 JsonobjectRequest 进行 POST 调用
private void LoginUser(String email,String pass) {
try {
Map<String, String> params = new HashMap<String, String>();
params.put("username", email);
params.put("password", pass);
JSONObject jsonParams = new JSONObject(params);
JsonObjectRequest postRequest = new JsonObjectRequest(Request.Method.POST, REGISTER_URL, jsonParams,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
// Parsing json object response
// response will be a json object
String TokenDB = response.getString("token");
JSONObject user=response.getJSONObject("user");
Constants.setClinicName(user.getString("name"));
//Constants.setTokenDB(TokenDB);
if(pd.isShowing())
{
pd.dismiss();
}
//Maintaining LogIn data till user clicks LogOut
SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = app_preferences.edit();
editor.putString("Token",TokenDB);
//editor.putString("username", username);
editor.commit();
//Printing Token in Log in case of null token debugging
/*String status=manager.getPreferences(ClinicLogin.this,"token");
Log.d("token", status);
*/
Intent intent=new Intent(ClinicLogin.this,MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
startActivity(intent);
}
catch (JSONException e)
{
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"Oops! The Username & Password Do Not Match. Please try again!",
Toast.LENGTH_LONG).show();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// Handle Error
if(pd.isShowing()) {pd.dismiss();}
if (error instanceof TimeoutError || error instanceof NoConnectionError) {
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Network Error", Toast.LENGTH_SHORT).show();
} else if (error instanceof AuthFailureError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "User not authorized", Toast.LENGTH_SHORT).show();
} else if (error instanceof ServerError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Server error", Toast.LENGTH_SHORT).show();
} else if (error instanceof NetworkError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Network Error", Toast.LENGTH_SHORT).show();
} else if (error instanceof ParseError) {
//TODO
error.printStackTrace();
Toast.makeText(getApplicationContext(), "Error consuming request", Toast.LENGTH_SHORT).show();
}
else error.printStackTrace();
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json; charset=utf-8");
return headers;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
postRequest.setRetryPolicy(new DefaultRetryPolicy(
7000,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(postRequest);
} catch (Exception e) {
e.printStackTrace();
}
}