java - Return string from try catch block -


i'm trying return string foo function, application crashes.

public string foo (string email){     string url_set = "http://****.php?email=" + email;     string responsestr = "1";     try {         httpclient httpclient = new defaulthttpclient();         httppost httppost = new httppost(url_set);         httpresponse response = httpclient.execute(httppost);         return responsestr;     } catch (unsupportedencodingexception e) {         e.printstacktrace();         return responsestr;     } catch (clientprotocolexception e) {         log.e("clientprotocolexception", "client");         e.printstacktrace();         return responsestr;     } catch (ioexception e) {         log.e("ioexception", "ioexption");         e.printstacktrace();         return responsestr;     } }

in general want convert response string , return caller. can't ever return string.

upd: logcat

04-28 14:13:57.220    2917-2917/com.example.lemon.onlineshop e/androidruntime﹕ fatal exception: main     process: com.example.lemon.onlineshop, pid: 2917     android.os.networkonmainthreadexception             @ android.os.strictmode$androidblockguardpolicy.onnetwork(strictmode.java:1147)             @ java.net.inetaddress.lookuphostbyname(inetaddress.java:418)             @ java.net.inetaddress.getallbynameimpl(inetaddress.java:252)             @ java.net.inetaddress.getallbyname(inetaddress.java:215)             @ org.apache.http.impl.conn.defaultclientconnectionoperator.openconnection(defaultclientconnectionoperator.java:137)             @ org.apache.http.impl.conn.abstractpoolentry.open(abstractpoolentry.java:164)             @ org.apache.http.impl.conn.abstractpooledconnadapter.open(abstractpooledconnadapter.java:119)             @ org.apache.http.impl.client.defaultrequestdirector.execute(defaultrequestdirector.java:360)             @ org.apache.http.impl.client.abstracthttpclient.execute(abstracthttpclient.java:555)             @ org.apache.http.impl.client.abstracthttpclient.execute(abstracthttpclient.java:487)             @ org.apache.http.impl.client.abstracthttpclient.execute(abstracthttpclient.java:465)             @ com.example.lemon.onlineshop.library.sessionmanager.getstring(sessionmanager.java:88)             @ com.example.lemon.onlineshop.library.sessionmanager.createloginsession(sessionmanager.java:76)             @ com.example.lemon.onlineshop.mainactivity.executelogin(mainactivity.java:96)             @ com.example.lemon.onlineshop.mainactivity$login.onpostexecute(mainactivity.java:191)             @ com.example.lemon.onlineshop.mainactivity$login.onpostexecute(mainactivity.java:160)             @ android.os.asynctask.finish(asynctask.java:632)             @ android.os.asynctask.access$600(asynctask.java:177)             @ android.os.asynctask$internalhandler.handlemessage(asynctask.java:645)             @ android.os.handler.dispatchmessage(handler.java:102)             @ android.os.looper.loop(looper.java:135)             @ android.app.activitythread.main(activitythread.java:5221)             @ java.lang.reflect.method.invoke(native method)             @ java.lang.reflect.method.invoke(method.java:372)             @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:899)             @ com.android.internal.os.zygoteinit.main(zygoteinit.java:694)

upd2: added whole class

public class sessionmanager { // shared preferences sharedpreferences pref;  // editor shared preferences sharedpreferences.editor editor;  // context context _context;  // shared pref mode int private_mode = 0;  // sharedpref file name private static final string pref_name = "sessionpref";  // shared preferences keys private static final string is_login = "isloggedin";  // user name (make variable public access outside) public static final string key_email = "email";  // email address (make variable public access outside) public static final string key_password = "password";  // public static final string key_id = "id";  // constructor public sessionmanager(context context){     this._context = context;     pref = _context.getsharedpreferences(pref_name, private_mode);     editor = pref.edit(); }  /**  * create login session  * */ public void createloginsession(string email, string password){     // storing login value true     editor.putboolean(is_login, true);      // storing name in pref     editor.putstring(key_email, email);      // storing email in pref     editor.putstring(key_password, password);      // storing id in pref     editor.putstring(key_id, getid(email));     // commit changes     editor.commit(); }  public string getid(string email){     string url_set = "http://***.php?email=" + email;     string responsestr = "1";     try {         httpclient httpclient = new defaulthttpclient();         httppost httppost = new httppost(url_set);         httpclient.execute(httppost);         return responsestr;     } catch (unsupportedencodingexception e) {         e.printstacktrace();         return responsestr;     } catch (clientprotocolexception e) {         log.e("clientprotocolexception", "client");         e.printstacktrace();         return responsestr;     } catch (ioexception e) {         log.e("ioexception", "ioexption");         e.printstacktrace();         return responsestr;     } }

you cannot make network call on main thread. need create separate thread run function.


Comments

Post a Comment

Popular posts from this blog

java - Spring Data JPA: Why findOne(id) executing delete query internally? -

i have 1 application using @manytomany annotation link 2 different entities 1 parent entity. not sure if have implemented properly. when execute .findone() on parent entity's repository find it, @ first fetch data along executing delete queries internally delete record mapping table (a table jpa creates after adding @manytomany annotation.). following generated sql queries , code snippet: java class @entity @table(name = "inventory") public class inventory { @id long id; // many other properties @manytomany(fetch=fetchtype.lazy) private list<stream> streams; @manytomany(fetch=fetchtype.lazy) private list<subject> subjects; } there no other annotation i've put in stream , subject entity class link inventory class. when run app, create following tables: inventory stream subject inventory_stream inventory_subject (inventory_stream , inventory_subject, 2 tables created automatically, don't k...
Read more

python - Mongodb How to add addtional information when aggregating? -

i beginner , wrote line pipeline works, wanna add other information output, screen name , or number of tweets.i tried add under $group gave me syntax error everytime here pipeline: def make_pipeline(): # complete aggregation pipeline pipeline = [ { '$match': { "user.statuses_count": {"$gt":99 }, "user.time_zone": "brasilia" } }, { "$group": { "_id": "$user.id", "followers": { "$max": "$user.followers_count" } } }, { "$sort": { "followers": -1 } }, { "$limit" : 1 } ]; i using on example : { "_id" : objectid("5304e2e3cc9e684aa98bef97"), "text" : "first week of school on :p", "in_reply_to_status_id" : null, "retweet_count" : null, ...
Read more

java - Incorrect order of records in M-M relationship in hibernate -

Image
i have 4 records in bridge table in mysql database. using @manytomany in hibernate, accurate order of employees incorrect incorrect of projects. following required material figure out doing mistake. this source. @entity @table(name="project") public class projectbean { @id @generatedvalue @column(name="project_id") private int projectid; @column(name="title") private string projecttitle; @manytomany(mappedby="projects") private collection<employeebean> employees; public projectbean() { employees = new arraylist<employeebean>(); } //getters & setters } @entity @table(name="employee") public class employeebean { @id @generatedvalue @column(name="employee_id") private int employee_id; @column(name="first_name") private string ...
Read more