我是Android新手。
我在我的onActivityResult＆＃39;中有一个数据接收列表。我将它们转换为[{"name":"net","price":"20"},{"name":"samsung","price":"11220"}]格式的json数组
现在我想将它附加到一个网址，并希望像这种格式发送
http://xyz/abc/purchasedetails=[{“name”:”Samsung”,”price”=“45”},{“name”:”Nokia”,”price”=“25”},{“name”:”Lenovo”,”price”=“115”}]
到目前为止我做了什么：
public class SendDataToServer extends Fragment {
int publishStatusCode = 0;
public interface SendProductDetailsToServerCallbacks {
public void OnPostExcecuteSendMilestoneDetailsToServerAsync(int _publishStatus,
String _responseString);
}
SendProductDetailsToServerAsync mSendProductDetailsToServerAsync;
SendProductDetailsToServerCallbacks mSendProductDetailsToServerCallbacks;
@Override
public void onAttach(Activity activity) {
// TODO Auto-generated method stub
super.onAttach(activity);
try {
mSendProductDetailsToServerCallbacks =
(SendProductDetailsToServerCallbacks) activity;
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
private class SendProductDetailsToServerAsync extends AsyncTask<Void, Void, String> {
String DataToSend = "";
public SendProductDetailsToServerAsync(String _DataToSend) {
DataToSend = _DataToSend;
}
@Override
protected String doInBackground(Void... params) {
boolean isDoRequestAgain = false;
String result = "";
do {
isDoRequestAgain = false;
/* List<NameValuePair> nameValuePairs = new
ArrayList<NameValuePair>();*/
JSONObject json = new JSONObject();
try {
String totalUrl = "http://androidxyz.com/android/vendor/purchasedetails.jsp?purchasedetails=" + DataToSend;
HttpPost post = new HttpPost(totalUrl);
HttpClient client = new DefaultHttpClient();
HttpResponse response;
/*nameValuePairs.add(new BasicNameValuePair(
"milestonedata", json.toString()));*/
post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response = client.execute(post);
publishStatusCode = response.getStatusLine().getStatusCode();
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
StringBuffer buffer = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = instream.read(b)) != -1; ) {
buffer.append(new String(b, 0, n));
}
result = buffer.toString();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} while (isDoRequestAgain);
return result;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
Log.v("publishStatusCode", publishStatusCode + "");
Log.v("result", result + "");
mSendProductDetailsToServerCallbacks.OnPostExcecuteSendMilestoneDetailsToServerAsync(publishStatusCode, result);
}
}
public void startSendMilestoneDetailsToServerAsync(String _dataToSend) {
mSendProductDetailsToServerAsync = new SendProductDetailsToServerAsync(_dataToSend);
mSendProductDetailsToServerAsync.execute();
}
}
我需要做些什么改变才能使我的代码正常工作？
DataToSend是[{"name":"net","price":"20"},{"name":"samsung","price":"11220"}]。
答案 0 :(得分：0)
此方法将发布您的数据
public static String httpPost(HashMap<String, String> map, String url, String token) {
Log.e("call ", "running");
HttpRequest request;
if(token!=null){
request = HttpRequest.post(url).accept("application/json")
.header("Authorization", "Token " + AppInfo.token).form(map);
}
else request = HttpRequest.post(url).accept("application/json").form(map);
int responseCode = request.code();
String text = request.body();
Log.e("response", " "+responseCode+ " "+ text);
if(responseCode==400){
return "invalid_tocken";
}
else if(responseCode<200 || responseCode>=300) {
return "error";
}
return text;
}
希望您可以将JSONArray转换为HashMap。如果您需要将其作为JSONArray本身发布，那么OkHttp库将为您提供帮助。
答案 1 :(得分：0)
你必须创建json数组，然后将其作为jasonArray.toString发布到param中。
以下是可以帮助您理解的示例。
private void generateCartJsonArray() {
JSONArray jArrayMain = null;
// send to php
Set<String> keys = Utility.CartDetailsList.keySet();
for (String key : keys) {
if (Utility.CartDetailsList.containsKey(key)) {
//creatign json obj for send to php
cartObj = new JSONObject();
try {
cartObj.put("psid", key.toString());//psid
cartObj.put("SelectedQuantity", String.valueOf(Utility.CartDetailsList.get(key).addQuantity));//SelectedQuantity
cartObj.put("DiscountQuantity", String.valueOf(Utility.CartDetailsList.get(key).freeQuantity));//DiscountQuantity
cartObj.put("FinalAmount", String.valueOf(Utility.CartDetailsList.get(key).totalprice));//final amount
jArrayMain = jsonArray.put(cartObj);
} catch (JSONException e1) {
e1.printStackTrace();
}
}
}
if (jArrayMain != null) {
verifyOrder(jArrayMain); // verify before place order
}
}
private void verifyOrder(final JSONArray cartarrayData) {
final Dialog dialog = new Dialog(CartActivity.this);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.progress_dialog);
dialog.setCancelable(false);
TextView text = (TextView) dialog.findViewById(R.id.tvProcessDialogTitle);
if (Utility.language.equals(CartActivity.this.getResources().getString(R.string.Gujarati))) {
text.setTypeface(Utility.AppsGujratiFont);
text.setText(CartActivity.this.getResources().getString(R.string.verify_order_please_wait_guj));
} else {
text.setText(CartActivity.this.getResources().getString(R.string.verify_order_please_wait_eng));
}
dialog.show();
StringRequest sr = new StringRequest(Request.Method.POST, Constant.VERIFY_MY_ORDER, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
mverifyOrderResponse = JSONUtils.verifyOrderResponse(response);
dialog.dismiss();
showVerifyMessage();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
dialog.dismiss();
}
}) {
@Override
protected Map<String, String> getParams() {
String dd = selected_Date;
Map<String, String> params = new HashMap<String, String>();
params.put("Customer", Utility.userId);// customer id
params.put("DeliverySlot", selected_SlotId);
params.put("CustomerAddress", Utility.profileResponse.data.Areaid);
params.put("DeliveryDate", selected_Date);
params.put("productdetails", cartarrayData.toString());
return params;
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("Content-Type", "application/x-www-form-urlencoded");
return params;
}
};
AppController.getInstance().getRequestQueue().getCache().remove(Constant.VERIFY_MY_ORDER);
AppController.getInstance().addToRequestQueue(sr);
}
答案 2 :(得分：0)
首先创建或者如果您已经有了课程
class Data{
String name;
String price;
getters & setters
create constuctore with name & price
}
宣布一个清单＆amp;设置数据
List<Data> list = new ArrayList<>();
list.add(new Data("Samsung", "10"));
list.add(new Data("Samsung", "20"));
创建数据地图＆amp;将数据设置为它将此映射传递给Asynch的构造函数
HashMap<String, String> parameters = new HashMap<>();
foreach(Data d : list){
parameters.put("name", d.getName());
parameters.put("price",d.getPrice() );
}
在Asynch Task类中
HashMap<String, String> parameters
public SendProductDetailsToServerAsync(HashMap<String, String> _parameters) {
parameters = _parameters;
}
@Override
protected String doInBackground(Void... params) {
Log.e("Response from url", webUrl);
String json = null;
URL url = null;
try {
try {
url = new URL(webUrl+"?"+getQuery(parameters, sendingParametersType));
Log.e("Response from url", webUrl+"?"+getQuery(parameters, sendingParametersType));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
} catch (MalformedURLException e2) {
e2.printStackTrace();
}
HttpURLConnection urlConnection;
try {
assert url != null;
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("POST");
if (parameters != null) {
urlConnection.setDoInput(true);
urlConnection.setDoOutput(true);
urlConnection.setConnectTimeout(2000);
// OutputStream os = urlConnection.getOutputStream();
//BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(
// os, "UTF-8"));
//writer.write(getQuery(parameters, sendingParametersType));
/* writer.flush();
writer.close();*/
// os.close();
}
urlConnection.connect();
try {
if (urlConnection.getResponseCode() == 200) {
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
json = readStream(in);
}else {
json = "{\"result\":\"fail\"}";
}
} catch (Exception e) {
e.printStackTrace();
} finally {
urlConnection.disconnect();
}
} catch (IOException e1) {
e1.printStackTrace();
}
return json;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
Log.e("Response from url", result);
}
}
private String readStream(InputStream is) {
try {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
int i = is.read();
while (i != -1) {
bo.write(i);
i = is.read();
}
return bo.toString();
} catch (IOException e) {
return "";
}
}
private String getQuery(HashMap<String, String> params, String typeJsonOrParams)
throws UnsupportedEncodingException {
StringBuilder result = new StringBuilder();
if (AppContants.JSON.equalsIgnoreCase(typeJsonOrParams)) {
result = new StringBuilder(new JSONObject(params).toString());
} else if (AppContants.PARAMETERS.equalsIgnoreCase(typeJsonOrParams)) {
boolean first = true;
for (Entry<String, String> e : params.entrySet()) {
if (first)
first = false;
else
result.append("&");
result.append(URLEncoder.encode(e.getKey(), "UTF-8"));
result.append("=");
if (e.getValue().equalsIgnoreCase("")) {
result.append("");
} else {
result.append(URLEncoder.encode(e.getValue(), "UTF-8"));
}
}
} else {
}
return result.toString();
}
答案 3 :(得分：0)
我使用了OkHttp Library
感谢Hari Krishnan帮助我完成代码工作;这就是我所做的;在MainActivity中我写道：
private class SendProductDetailsToServerAsync extends AsyncTask<Void, Void, String> {
String DataToSend;
public SendProductDetailsToServerAsync(String _DataToSend) {
DataToSend = _DataToSend;
}
@Override
protected String doInBackground(Void... voids) {
// JSONObject jsonObject= null;
JSONArray jsonArr = null;
JSONObject jsonObject = new JSONObject();
try {
// jsonObject = new JSONObject(DataToSend);
jsonArr = new JSONArray(DataToSend);
jsonObject.put("", jsonArr);
} catch (JSONException e) {
e.printStackTrace();
}
return Http.httpPost(jsonArr, "http://../android/vendor/purchasedetails.jsp", null);
}
然后创建了一个Http类
public class Http {
public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
public static String httpPost(JSONArray map,String url, String token) {
OkHttpClient client = new OkHttpClient();
client.setConnectTimeout(10, TimeUnit.SECONDS);
client.setReadTimeout(10, TimeUnit.SECONDS);
String text="";
Request request;
int responseCode=1234;
try {
JSONArray jsonArray = map;
String json = jsonArray.toString();
Log.e("json", json);
RequestBody body = RequestBody.create(JSON, json);
Log.v("body",""+body);
if (token!=null){
request = new Request.Builder().url(url).header("Authorization", "Token " + token).
header("Connection", "close").
post(body).
build();
Log.v("request",""+request);}
else {
request = new Request.Builder().url(url).
header("Connection", "close").
post(body).build();
Log.v("requestnotoken",""+request);
}
Response response = client.newCall(request).execute();
text=response.body().string();
responseCode=response.code();
Log.e("responseode",String.valueOf(responseCode));
Log.e("text",text);
if(!response.isSuccessful()) {
Log.e("HttpPostResponse", String.valueOf(responseCode));
return "error";
}
}
catch (Exception e) {
e.printStackTrace();
return "error_network";
}
return text;
}
}