Servlet « Development « JPA Q&A





1. Scalable Servlet Hosting    stackoverflow.com

Possible Duplicate:
What alternatives are there to Google App Engine?
I would like to know if there is any alternative to Google App Engine. I have tried ...

2. Hibernate and Servlets    stackoverflow.com

Hi all I'm developing a web-app and I want to retrieve data from the database and send them to the homepage.I thought to set the servlet as my welcome page,retrieve my data ...

3. [help] Servlet & Web Service not work with JPA controller    forums.netbeans.org

Can you help me about this problem... 1. I create database in MySQL -> successfully 2. I create Java Application (console) Project, Create Entities Class, Create JPA controller, Persistence Unit. The ...

4. how can i use hibernate both in standalone and in servlet container?    coderanch.com

i am having issues testing my hibernate code out of container and i figure this is due to differing configuration btw hibernate use via a web container and in standalone application.. correctly, my hibernate works perfect with tomcat but the same code does not work while testing outside container, what modifications can i make to solve the problem? currently, i have ...

5. Hibernate running outside the servlet    coderanch.com

We've finally gotten to the point of trying to run Hibernate outside the servlet and we are experiencing issues with the hbm files being found. When running a web app using hibernate you end up having a bunch of initialization occur when hibernate is used. I'm wondering if that is the issue we are running into trying to run this via ...

6. Servlet JPA problem    coderanch.com

hi guys I developed my Entities and use JPA for connect to DBs alright I have a problem I developed a Servlet that shown all of the records from test table it's work good except first time for first time glassfish return " Exception [EclipseLink-8034] (Eclipse Persistence Services - 1.0.1 (Build 20080905)): org.eclipse.persistence.exceptions.JPQLException Exception Description: Error compiling the query [all: select ...

7. hibernate in servlet - threadsafe    coderanch.com

Hi All We're really having a hard time trying to figure out if our code is really threadsafe. We have a web app that contains spring-injected services that use a dao layer to get to the database via Hibernate. We injected the services into INSTANCE variables in the servlet - so every request that comes in becomes a thread that uses ...

8. hibernate-servlet    coderanch.com

Hi friends, I am getting following exception and my cde is as given below.please any one could help to locate the fault. org.hibernate.HibernateException: Hibernate Dialect must be explicitly set at org.hibernate.dialect.DialectFactory.determineDialect(DialectFactory.java:80) at org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:62) at org.hibernate.cfg.SettingsFactory.determineDialect(SettingsFactory.java:460) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:155) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325) at mypack.PdServlet.init(PdServlet.java:35) at javax.servlet.GenericServlet.init(GenericServlet.java:212) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:809) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) ...

9. How to use hibernate with servlet    coderanch.com





10. second request of servlet cause hibernate problem    coderanch.com

Hi guys, i wrote a servlet in which i'm calling a DAO class that uses hibernate. i used the simplest hibernate.cfg.xml and annotated classes . to create sessionFactory i use a static method that returns same sessionFactory instance each time and open a session (actually getCurrentSession()) if i enter servlet url in browser it runs fine for first time ,but if ...

12. Problem with HIBERNATE and Servlet    forum.hibernate.org

org.apache.catalina.core.StandardWrapperValve invoke GRAVE: "Servlet.service()" pour la servlet EventManagerServlet a gnr une exception java.lang.NoClassDefFoundError at org.hibernate.tutorial.web.EventManagerServlet.doGet(EventManagerServlet.java:24) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) ...

13. Problem hubernate and Servlet    forum.hibernate.org

Newbie Joined: Tue Nov 16, 2010 12:02 pm Posts: 5 Hello everybody ! :) I'm trying to create a table in mysql but when i call the servlet this is the result : Code: type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. javax.servlet.ServletException: Error instantiating servlet class ServletAlta ...

14. Problem using Hibernate in servlet destroy()    forum.hibernate.org

hello everybody I'm using apache tomcat 6.0 and hibernate 3.6. My web app is implemented as a servlet that serves http POST and GET. As well I'm using the singleton pattern for creating a SessionFactory over the HibernateUtil class introduced in the hibernate tutorial. Now I cant find a solution for following problem. I need a way to access to my ...

15. Servlet tuning and shut down    forum.hibernate.org

Hello, everyone. I am building a web application that runs in a tomcat container using servlets which use hibernate and c3p0 as a back end. The vital stats: Java: 1.6.0_07-b06 Implementation-Title: Hibernate3 Implementation-Version: 3.2.4.sp1 Implementation-Vendor: hibernate.org Hibernate-Version: 3.2.4.sp1 C3P0 : Specification-Version: 1.0 Implementation-Vendor-Id: com.mchange Implementation-Vendor: Machinery For Change, Inc. Implementation-Version: 0.9.1 ========= I have two questions. 1) I cannot undeploy or ...

16. javax.servlet.ServletException: duplicate import ?!    forum.hibernate.org

Hi all, I'm new to Hibernate and is trying to implement the simple 1-to-N relations. I'm ok with the N-to-1 part but trapped in the one-to-many tag. whenever i uncomment the following code, I'll get: javax.servlet.ServletException: duplicate import: Parent Code: ...





17. Depolying hibernate servlet application...    forum.hibernate.org

OK, I've created an application using JBuilder 8 and I can run my servlet and display data I've retrieved using hibernate. I've tried to deploy the war file created by JBuilder into a stand-alone Tomcat installation but I get a MappingException: Resource: .hbm.xml not found. I added the mapping files by hand using the java2 sdk jar tool: jar -uvf jarfile.jar ...

18. Strange error when running servlet    forum.hibernate.org

Hi, I've this simple class 'Account' with properties login and password, both String objects. I've setup a small test example with SQL Server where I have a table Account( login, password ) and a hibernate_unique_key table for hilo id generation. When running from console (method main), I am able to save a new Account as well as retrieve it with a ...

19. use Hibernate in Servlet !    forum.hibernate.org

Hello, How can I use Hibernate in Servlet? If I just want to use HypersonicSQL in stand alone file mode, how can I use Hibernate in Servlet? For example, I want to use Hibernate in Servlet, and the database is located in /WEB-INF/data/test. How to create the SessionFactory in Servlet with that location structure ? Eric

20. How to configure hibernate to run outside servlet ?    forum.hibernate.org

What is the recommended way to configure Hibernate without using a servlet environement ( pure J2SE ) for unit testing purpose? The Configuration class seems to provide a lot of way of setting JDBC connection and Hibernate properties but is not clear how to use it. Is there any samples doing so around ( only found quickstart which is servlet based ...

21. addJar (vs. addResource) broken inside of servlet container    forum.hibernate.org

The problem is in the addJar(String resource) method of configuration. I found a way to override this method that works for jar files (or zip files for that matter) read from a stream and hence properly resolved regardless of whether inside a container or not. Problem solved. If others are interested let me know and I'll post the code.

22. Quickstart Servlet Problem    forum.hibernate.org

I have a problem with compiling the servlet I created from the quickstart. Here is my simple servlet code: import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import net.sf.hibernate.*; import net.sf.hibernate.cfg.*; import java.util.ArrayList; import java.util.Date; import java.util.HashSet; import java.util.Iterator; import java.util.List; /** Simple servlet used to test server. *

* Taken from Core Servlets and JavaServer Pages 2nd Edition * from Prentice ...

23. Example servlet skeleton    forum.hibernate.org

Thanks for the tip. I checked it out, but it seems like a complex example. I'm surprised that I couldn't find any easy examples. I come across lots of examples that use frameworks like struts, but nothing that is just plain old servlets with hibernate. Is this because very few people do things this way? -E

24. Servlets and Hibernate    forum.hibernate.org

i am new to hibernate. I have managed to connect to database using java standalone application. Now i am using a servlet to retrieve data from a table having a field say "name". can any1 tell me how should i do it? i am using tomcat 5 and hibernate 2.1.6. thanks in advance....

25. 2 servlets using hibernate to preserve data    forum.hibernate.org

Your into an interesting world (which means difficult and dangerous). Client distributed based caching is hard. A distributed cache will help you. Otherwise you have to implement your own update notifications that get distributed to the other JVMs to set the help data as stale (or dirty) which will then force an load the next time the object is required.

26. Question in servlets environment    forum.hibernate.org

Hello all, I have a dude about the use of ORMs in general, in this case Hibernate ;) Well, supose we have a two persistent class Person.java Long id; String name; String surname; Country country; Country.java Long id; String name then when a user click in my creator form we recibe parameters name, surname, countryId (from a combobox) MY QUESTION: Is ...

27. javax.servlet.UnavailableException    forum.hibernate.org

I am running into the following issue. Any help will be greatly appreciated. Hibernate version: 2.0 Mapping documents: RoleManagement.hbm.xml User.hbm.xml

28. Structure of servlets using hibernate    forum.hibernate.org

class Person { . . . public Person getPerson(Long id) { Session session = sessionFactory.getCurrentSession(); session.beginTransaction(); Person ret = (Person) session.load(Person.class, id); ...

29. calling hibernate in servlets    forum.hibernate.org

30. cannot import javax.servlet    forum.hibernate.org

I am a novice with hibernate and I am trying to run the sample application (events), but I am unable to import javax.servlet in EventManagerServlet.java because there are no references to servlet under javax (i. e. there are javax.security and javax.sound but not javax.servlet). What I have to do to solve the problem? Thank you. Domenico

31. Wizard Style Servlets    forum.hibernate.org

32. Wizard Style Servlets    forum.hibernate.org

33. Problems to convert from Java Application to Servlet    forum.hibernate.org

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { ...

34. calling hibernate in servlets    forum.hibernate.org

35. Application with Servlets - Best Practice    forum.hibernate.org

36. Problem running a Servlet using Hibernate    forum.hibernate.org

Newbie Joined: Sun Jul 22, 2007 9:59 pm Posts: 4 Hi, I am using Hibernate3.2 with MySql Server 5.0. I have written the following Servlet code Code: [color=darkred]import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import org.hibernate.*; import org.hibernate.cfg.*; import org.hibernate.SessionFactory.*; import employee.Department; public class departmentTest extends HttpServlet { private SessionFactory sessionFactory; ...

37. Problem running simple servlet with Hibernate. Please help!    forum.hibernate.org

Newbie Joined: Mon Jul 23, 2007 10:17 am Posts: 12 Location: www.ultrasharpware.com Hi! I'm trying to write simplest servlet with hibernate. But I can't execute it. I receive java.lang.NoClassDefFoundError: org/hibernate/cfg/Configuration I think i have problem with my hibernate.cfg.xml. My tomcat folder looks like this: + web-inf web.xml + classes + hibernate - package Servlet.class Client.class hibernate.cfg.xml Client.hbm.xml hibernate3.jar and other jars ...

39. Hibernate-Servlet    forum.hibernate.org