我遇到了这个问题，基本上我可以从服务器收到标题，但响应为空，我不明白为什么？ 我看到服务器日志，一切正常，我尝试了curl请求，即使一切正常，但在我的应用程序中，我无法收到回复。
try {
final String token2 = mPreferences.getString("auth_token", "");
// open a URL connection to the Servlet
final URL url = new URL(upLoadServerUri);
final RequestParams params = new RequestParams();
//create the hashmap with the parameters for Strings
HashMap<String, String> paramMap = new HashMap<String, String>();
paramMap.put("spot[title]", mtitle);
paramMap.put("spot[address]", maddress);
paramMap.put("spot[country]", mcountry);
paramMap.put("spot[shot_level]", "easy");
paramMap.put("spot[photos_attributes][0][description]", mdescription);
params.put("spot[latitude]", googlelat);
params.put("spot[longitude]", googlelng);
params.put("", paramMap);
//params.put("", paramMapInt);
File myFile = new File(sglimagepath);
try {
params.put("spot[photos_attributes][0][ref]", sourceFile);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
AsyncHttpClient client2 = new SyncHttpClient();
AsyncHttpClient client2 = new SyncHttpClient();
//check if needs this header or I can take off this and leave just the url+token2
client2.addHeader("x-auth-token", token2);
client2.post(String.valueOf(url), params, new BaseJsonHttpResponseHandler(String.valueOf(Looper.getMainLooper())) {
/**
* Base abstract method, handling defined generic type
*
* @param statusCode HTTP status line
* @param headers response headers
* @param rawJsonResponse string of response, can be null
* @param response response returned by {@link #parseResponse(String, boolean)}
*/
@Override
public void onSuccess(int statusCode, cz.msebera.android.httpclient.Header[] headers, String rawJsonResponse, Object response) {
onPostExecute((JSONObject)response);
}
/**
* Base abstract method, handling defined generic type
*
* @param statusCode HTTP status line
* @param headers response headers
* @param throwable error thrown while processing request
* @param rawJsonData raw string data returned if any
* @param errorResponse response returned by {@link #parseResponse(String, boolean)}
*/
@Override
public void onFailure(int statusCode, cz.msebera.android.httpclient.Header[] headers, Throwable throwable, String rawJsonData, Object errorResponse) {
}
/**
* Should return deserialized instance of generic type, may return object for more vague
* handling
*
* @param rawJsonData response string, may be null
* @param isFailure indicating if this method is called from onFailure or not
* @return object of generic type or possibly null if you choose so
* @throws Throwable allows you to throw anything from within deserializing JSON response
*/
@Override
protected Object parseResponse(String rawJsonData, boolean isFailure) throws Throwable {
return null;
}
我执行此请求是因为我向服务器发送图像，服务器response_code为201表示一切正常，因此响应将包括＆＃34; user_id＆＃34;然后在收到user_id后我可以再发一次请求。谢谢你的帮助
答案 0 :(得分：1)
试试这种方式
final RequestParams params = new RequestParams();
//create the hashmap with the parameters for Strings
params.add("spot[title]", mtitle);
params.add("spot[address]", maddress);
params.add("spot[country]", mcountry);
params.add("spot[shot_level]", "easy");
params.add("spot[photos_attributes][0][description]", mdescription);
params.add("spot[latitude]", googlelat);
params.add("spot[longitude]", googlelng);
try {
params.put("spot[photos_attributes][0][ref]", new File(sglimagepath));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
并观察日志以查看文件是否已找到
编辑 这是我的代码，它的工作正常
final RequestParams requestParams = new RequestParams();
requestParams.add("Event[user_id]", user_id);
requestParams.add("Event[city]", city);
requestParams.add("Event[title]", title);
requestParams.add("Event[short_description]", shortDesc);
requestParams.add("Event[description]", Desc);
requestParams.add("Event[latitude]", lat);
requestParams.add("Event[longitude]", longi);
requestParams.add("Event[type_id]", type_id);
try {
Log.d("imgPath", "img path = " + img);
File file = new File(img);
requestParams.put("Event[img]" , file);
requestParams.add("Event[img]" , imgName);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
requestParams.setContentEncoding("utf-8");
String url = ServerConnection.ipAdresss + ServerConnection.createEvents;
AsyncHttpClient client = new AsyncHttpClient();
// client.addHeader("Content-Type","multipart/form-data");
client.post(url, requestParams, new TextHttpResponseHandler() {
@Override
public void onPostProcessResponse(ResponseHandlerInterface instance, cz.msebera.android.httpclient.HttpResponse response) {
super.onPostProcessResponse(instance, response);
}
@Override
public void sendResponseMessage(HttpResponse response) throws IOException {
super.sendResponseMessage(response);
Log.d("Failed", "failed " + response.getEntity().toString());
}
@Override
public void onStart() {
// called before request is started
progressDialog.show();
}
@Override
public void onFailure(int statusCode, Header[] headers, String responseString, Throwable throwable) {
Log.d("Failed", "failed " + throwable.getMessage());
SUtility.makeToast(context, "Error = " + throwable.getMessage());
}
@Override
public void onSuccess(int statusCode, Header[] headers, String responseString) {
Log.d("Success", "success " + responseString);
try {
ParseResp(responseString);
} catch (Exception e) {
e.printStackTrace();
SUtility.makeToast(context, "Error retrieving Data");
}
}
@Override
public void onFinish() {
super.onFinish();
Log.d("Success", "finish");
if (progressDialog.isShowing())
progressDialog.dismiss();
}
@Override
public void onRetry(int retryNo) {
// called when request is retried
}
});
}