我正在尝试登录并注册我的安卓应用程序。我在使用 HttpParams 时遇到问题。我正在关注Tonikami在Youtube上的教程。我只是Android Studio的新手。这只是我知道的过程。非常感谢您的帮助。:(
public class ServerRequests {
ProgressDialog progressDialog;
public static final int CONNECTION_TIMEOUT = 1000 * 15;
public static final String SERVER_ADDRESS = "http://mywebsite.com/";
public ServerRequests(Context context) {
progressDialog = new ProgressDialog(context);
progressDialog.setCancelable(false);
progressDialog.setTitle("Processing...");
progressDialog.setMessage("Please wait...");
}
public void storeUserDataInBackground(User user, GetUserCallback userCallBack) {
progressDialog.show();
new StoreUserDataAsyncTask(user, userCallBack).execute();
}
public void fetchUserDataAsyncTask(User user, GetUserCallback userCallBack) {
progressDialog.show();
new fetchUserDataAsyncTask(user, userCallBack).execute();
}
/**
* parameter sent to task upon execution progress published during
* background computation result of the background computation
*/
public class StoreUserDataAsyncTask extends AsyncTask<Void, Void, Void> {
User user;
GetUserCallback userCallBack;
public StoreUserDataAsyncTask(User user, GetUserCallback userCallBack) {
this.user = user;
this.userCallBack = userCallBack;
}
@Override
protected Void doInBackground(Void... params) {
ArrayList<NameValuePair> dataToSend = new ArrayList<>();
dataToSend.add(new BasicNameValuePair("name", user.name));
dataToSend.add(new BasicNameValuePair("username", user.username));
dataToSend.add(new BasicNameValuePair("password", user.password));
dataToSend.add(new BasicNameValuePair("age", user.age + ""));
HttpParams httpRequestParams = getHttpRequestParams();
HttpClient client = new DefaultHttpClient(httpRequestParams);
HttpPost post = new HttpPost(SERVER_ADDRESS + "Register.php");
try {
post.setEntity(new UrlEncodedFormEntity(dataToSend));
client.execute(post);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
private HttpParams getHttpRequestParams() {
HttpParams httpRequestParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpRequestParams,
CONNECTION_TIMEOUT);
HttpConnectionParams.setSoTimeout(httpRequestParams,
CONNECTION_TIMEOUT);
return httpRequestParams;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
progressDialog.dismiss();
userCallBack.done(null);
}
}
public class fetchUserDataAsyncTask extends AsyncTask<Void, Void, User> {
User user;
GetUserCallback userCallBack;
public fetchUserDataAsyncTask(User user, GetUserCallback userCallBack) {
this.user = user;
this.userCallBack = userCallBack;
}
@Override
protected User doInBackground(Void... params) {
ArrayList<NameValuePair> dataToSend = new ArrayList<>();
dataToSend.add(new BasicNameValuePair("username", user.username));
dataToSend.add(new BasicNameValuePair("password", user.password));
HttpParams httpRequestParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpRequestParams,
CONNECTION_TIMEOUT);
HttpConnectionParams.setSoTimeout(httpRequestParams,
CONNECTION_TIMEOUT);
HttpClient client = new DefaultHttpClient(httpRequestParams);
HttpPost post = new HttpPost(SERVER_ADDRESS
+ "FetchUserData.php");
User returnedUser = null;
try {
post.setEntity(new UrlEncodedFormEntity(dataToSend));
HttpResponse httpResponse = client.execute(post);
HttpEntity entity = httpResponse.getEntity();
String result = EntityUtils.toString(entity);
JSONObject jObject = new JSONObject(result);
if (jObject.length() != 0){
Log.v("happened", "2");
String name = jObject.getString("name");
int age = jObject.getInt("age");
returnedUser = new User(name, age, user.username,
user.password);
}
} catch (Exception e) {
e.printStackTrace();
}
return returnedUser;
}
@Override
protected void onPostExecute(User returnedUser) {
super.onPostExecute(returnedUser);
progressDialog.dismiss();
userCallBack.done(returnedUser);
}
}
}'
URL url = new URL("http://google.co.in");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setConnectTimeout(2000);
is = conn.getInputStream();
使用上面的代码而不是折旧的 httpParams
对于传递后参数,请这样做
Uri.Builder builder = new Uri.Builder();
builder.appendQueryParameter("param1", "paramvalue1");
builder.appendQueryParameter("param2", "paramvalue2");
String query = builder.build().getEncodedQuery();
OutputStream os = conn.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
writer.write(query);
writer.flush();
writer.close();
os.close();
conn.connect();
is = conn.getInputStream();