[英]Passing json array in a key value pair in Java
我正在尝试使用 Java 中的 rest webservice 发送数据。 我可以在 POST 中使用 Java 发布数据,但现在我需要在 rawModeData 中发送数据,我还需要在surveysData键中发送 JSONArray 。
请找到随附的屏幕截图
这是我用来发送数据的代码
try {
URL url = new URL(webServiceData.getSyncSurveyDataUrl());
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
// ConnectionType
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
httpURLConnection.setDoInput(true);
httpURLConnection.setUseCaches(false);
httpURLConnection.setAllowUserInteraction(false);
httpURLConnection.setRequestProperty("charset", "utf-8");
httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
// Create the output form content
OutputStream out = httpURLConnection.getOutputStream();
Writer writer = new OutputStreamWriter(out, "UTF-8");
JSONObject objects = new JSONObject();
objects.put("constituency", constituency);
objects.put("longitude", longitude);
objects.put("latitude", latitude);
objects.put("createdOn", createdOn);
for (Map.Entry<String, String> map : linkedHashMap.entrySet()) {
objects.put(map.getKey(), map.getValue());
}
writer.write("createdByDeviceId");
writer.write("=");
writer.write(URLEncoder.encode(loginModel.getDeviceId(), "UTF-8"));
writer.write("&");
writer.write("createdByMobileNumber");
writer.write("=");
writer.write(URLEncoder.encode(loginModel.getMobileNumber(), "UTF-8"));
writer.write("&");
writer.write("state");
writer.write("=");
writer.write(URLEncoder.encode(loginModel.getLoggedInState(), "UTF-8"));
writer.write("&");
writer.write("eventId");
writer.write("=");
writer.write(URLEncoder.encode(loginModel.getEventId(), "UTF-8"));
writer.write("&");
writer.write("surveysData");
writer.write("=");
writer.write(URLEncoder.encode(objects.toString(), "UTF-8"));
if (httpURLConnection.getResponseCode() != 200) {
System.out.println("Exception in 200: " + httpURLConnection.getResponseCode());
System.out.println("Exception Message: " + httpURLConnection.getResponseMessage());
/*errorLabel.setText(httpURLConnection.getResponseMessage());
errorLabel.setVisible(true);*/
}
} catch (Exception e) {
return false;
}
我收到 401 错误消息
我认为您错过了标头中的一些身份验证令牌。 类似于: httpURLConnection.setRequestProperty("tokenKey", "yourAuthToken");
//...
String queryParameters = formatQueryParameters(requestData);
byte[] output = queryParameters.getBytes(Charset.forName("UTF-8"));
connection.setFixedLengthStreamingMode(output.length);
connection.connect();
DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());
dataOutputStream.write(output);
//...
public static String formatQueryParameters(Map<String, String> requestData) throws UnsupportedEncodingException {
String equals = URLEncoder.encode("=", "UTF-8");
String ampersand = URLEncoder.encode("&", "UTF-8");
StringBuilder builder = new StringBuilder();
for (Map.Entry<String, String> entry : requestData.entrySet()) {
String encodedKey = URLEncoder.encode(entry.getKey(), "UTF-8");
String encodedValue = URLEncoder.encode(entry.getValue(), "UTF-8");
builder.append(encodedKey).append(equals).append(encodedValue).append(ampersand);
}
builder.deleteCharAt(builder.lastIndexOf(ampersand));
return builder.toString();
}
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