[英]Send post data to server using Volley android
I am trying to send some data to the server using the Volley library.我正在尝试使用 Volley 库向服务器发送一些数据。
private void registerUser(final String email, final String username,
final String password) {
// Tag used to cancel the request
String tag_string_req = "req_register";
pDialog.setMessage("Registering ...");
StringRequest strReq = new StringRequest(Method.POST,
AppConfig.URL_REGISTER, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Register Response: " + response.toString());
try {
JSONObject jObj = new JSONObject(response);
// String status = jObj.getString("status");
// User successfully stored in MySQL
// Now store the user in sqlite
String name = jObj.getString("username");
String email = jObj.getString("email");
String password = jObj.getString("password");
// String created_at = user
//.getString("created_at");
// Inserting row in users table
// db.addUser(name, email);
// Launch login activity
Intent intent = new Intent(
RegisterActivity.this,
LoginActivity.class);
startActivity(intent);
finish();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Registration Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting params to register url
Map<String, String> params = new HashMap<String, String>();
params.put("email", email);
params.put("username", username);
params.put("password", password);
return params;
}
Unfortunately no json is sent and I get nothing back.不幸的是,没有发送 json,我什么也得不到。 Here is a sample of my logcat output.
这是我的 logcat 输出示例。 After sending a request successfully to the server, I want to get response with success/fail.
向服务器成功发送请求后,我想获得成功/失败的响应。
Register Response: ---- YOUR DATA ----
username=xxx&email=xxx%40gmail.com&password=xxxx&-------------------
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ org.json.JSONException: Value ---- of type java.lang.String
cannot be converted to JSONObject
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ at org.json.JSON.typeMismatch(JSON.java:111)
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ at org.json.JSONObject.<init>(JSONObject.java:160)
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ at org.json.JSONObject.<init>(JSONObject.java:173)
Any help please?请问有什么帮助吗? Thanx.
谢谢。
private void postUsingVolley() {
String tag_json_obj = "json_obj_req";
final ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("posting...");
pDialog.show();
final String mVendorId = DeviceDetails.getInstance(mContext).getVendor_id();
String mUserId = UserModel.getInstance(mContext).getUser_id();
final HashMap<String, String> postParams = new HashMap<String, String>();
sendFeedbackParams.put("key1", value1);
sendFeedbackParams.put("key2", value2);
sendFeedbackParams.put("key3", value3);
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
ApplicationData.POST_URL, new JSONObject(postParams),
new com.android.volley.Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
//Log.d("TAG", response.toString());
try {
//Toast.makeText(mContext, response.getString("message"), Toast.LENGTH_LONG).show();
Toast.makeText(mContext, "Thank you for your post", Toast.LENGTH_LONG).show();
if (response.getBoolean("status")) {
pDialog.dismiss();
finish();
}
} catch (JSONException e) {
Log.e("TAG", e.toString());
}
pDialog.dismiss();
}
}, new com.android.volley.Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//VolleyLog.d("TAG", "Error: " + error.getMessage());
pDialog.dismiss();
if (isNetworkProblem(error)) {
Toast.makeText(mContext, "Internet Problem", Toast.LENGTH_SHORT).show();
}
}
}) {
@Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
return getRequestHeaders();
}
};
jsonObjReq.setRetryPolicy(new DefaultRetryPolicy(8000, 0, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
Use Volley like this,... It is working for me.像这样使用 Volley,...它对我有用。
First of all you are not sending json to your server.首先,您没有将 json 发送到您的服务器。 You are sending parametrized url with post method and getting json text as response.
您正在使用 post 方法发送参数化 url 并获取 json 文本作为响应。
I think the problem is the response from the server which is supposedly json.我认为问题是来自服务器的响应,据说是 json。 But from your log, this text
"---- YOUR DATA ----"
which you get from Log.d(TAG, "Register Response: " + response.toString());
但是从您的日志中,您从
Log.d(TAG, "Register Response: " + response.toString());
获得的文本"---- YOUR DATA ----"
Log.d(TAG, "Register Response: " + response.toString());
is not at all json formatted .根本不是 json 格式。 So you need to modify your server to respond in correct json format.
所以你需要修改你的服务器以正确的 json 格式响应。
This is the solution.这就是解决方案。 I had to use the JsonObjectRequest class and not the StringRequest on.
我必须使用 JsonObjectRequest 类而不是 StringRequest 。 What JsonRequest does is that it converts your HashMap key-value pairs into a JSON Format.
JsonRequest 所做的是将您的 HashMap 键值对转换为 JSON 格式。
private void registerUser(String email_address,String username, String
password) {
String tag_json_obj = "json_obj_req";
final ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("posting...");
pDialog.show();
final String mVendorId =
DeviceDetails.getInstance(mContext).getVendor_id();
String mUserId = UserModel.getInstance(mContext).getUser_id();
String location = getResources().getConfiguration().locale.getCountry();
final HashMap<String, String> postParams = new HashMap<String, String>
();
postParams.put("username", username);
postParams.put("email", email_address);
postParams.put("password", password);
postParams.put("location", location);
Response.Listener<JSONObject> listener;
Response.ErrorListener errorListener;
final JSONObject jsonObject = new JSONObject(postParams);
JsonObjectRequest jsonObjReq = new
JsonObjectRequest(AppConfig.URL_REGISTER, jsonObject,
new com.android.volley.Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
//Log.d("TAG", response.toString());
try {
Toast.makeText(getApplicationContext(),
response.getString("message"), Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(), "Thank
you for your post", Toast.LENGTH_LONG).show();
if (response.getString("status").equals("success")){
session.setLogin(true);
pDialog.dismiss();
Intent i = new
Intent(RegisterActivity.this,Welcome.class);
startActivity(i);
finish();
}
} catch (JSONException e) {
Log.e("TAG", e.toString());
}
pDialog.dismiss();
}
}, new com.android.volley.Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//VolleyLog.d("TAG", "Error: " + error.getMessage());
pDialog.dismiss();
}
}) {
@Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
JSon post JSon 帖子
public void makePostUsingVolley()
{
session = new SessionManager(getActivity().getApplicationContext());
session.checkLogin();
HashMap<String, String> user = session.getUserDetails();
final String token = user.get(SessionManager.KEY_NAME);
//Toast.makeText(getActivity().getApplicationContext(),name, Toast.LENGTH_SHORT).show();
final Map<String, String> params = new HashMap<String, String>();
//params.put("Employees",name);
String tag_json_obj = "json_obj_req";
String url = "enter your url";
final ProgressDialog pDialog = new ProgressDialog(getApplicationContext());
pDialog.setMessage("Loading...");
pDialog.show();
StringRequest req = new StringRequest(Request.Method.GET,url,
new Response.Listener<String>() {
// final JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET,
//"http://emservices.azurewebsites.net/Employee.asmx/CheckUserGet", new Response.Listener<JSONObject>() {
@Override
public void onResponse(String response) {
JSONObject json;
// Toast.makeText(getActivity().getApplicationContext(),"dfgghfhfgjhgjghjuhj", Toast.LENGTH_SHORT).show();
//Toast.makeText(getActivity().getApplicationContext(),obb.length(), Toast.LENGTH_SHORT).show();
// JSONObject data=obj.getJSONObject("Employee_Name");
ObjectOutput out = null;
try {
json = new JSONObject(response);
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
pDialog.hide();
// Toast.makeText(getApplicationContext(),"hi", Toast.LENGTH_SHORT).show();
Log.d("", response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("", "Error: " + error.getMessage());
Toast.makeText(getActivity().getApplicationContext(),
error.getMessage(), Toast.LENGTH_SHORT).show();
pDialog.hide();
// hide the progress dialog
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("username",name);
params.put("password",password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req, tag_json_obj);
}
requestQueue= Volley.newRequestQueue(MainActivity.this);
StringRequest request=new StringRequest(Request.Method.PUT, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Toast.makeText(MainActivity.this, ""+response, Toast.LENGTH_SHORT).show();
Log.d("response",response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}){
@Override
protected Map<String, String> getParams() throws AuthFailureError {
JSONObject jsonObject = new JSONObject();
try {
jsonObject.put("name", name.getText().toString().trim());
jsonObject.put("email", email.getText().toString().trim());
jsonObject.put("phone", phone.getText().toString().trim());
} catch (JSONException e) {
e.printStackTrace();
}
Map<String, String> params = new HashMap<String, String>();
params.put("message", jsonObject.toString());
return params;
}
};
requestQueue.add(request);
[["deep","dee@gmail.com","8888999999"]] [[“深”,“dee@gmail.com”,“8888999999”]]
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