Sub : How to manage session ?

Hi Java Gurus,
Can any body tell me how to manage session in java.
I have two url say http://www.xyz/userlogin.php, http://www.xyz/sendsms.php
1st url gives the login form and second one coes after succesfull login.
Now I am not using any web browser. I have to surf these pages through java code using java api ( HttpURLConnection, HttpSession, URL etc...).
I am able to access login form, but after login when I connect second url, it gives session expired message in the html stream.
This is because I am not managing session. So can any body have any idea or pointer. How I can manage sesssion and access second page after succesfull login.
I will appreciate your help.
Thanks and regards -
Vikas Kumar Sahu.

What I do in some of our test-clients is that I call the login and get all the cookies from the header and add them to the next request.
More or less what pkwooster suggested.
Also, I suggest that you take a look at http://jakarta.apache.org/commons/httpclient/
and the Example code http://svn.apache.org/viewvc/jakarta/commons/proper/httpclient/trunk/src/examples/CookieDemoApp.java?view=markup
Message was edited by:
Lajm

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How to manage session ?

Hi Java Gurus,
Can any body tell me how to manage session in java.
I have two url say http://www.xyz/userlogin.php, http://www.xyz/sendsms.php
1st url gives the login form and second one coes after succesfull login.
Now I am not using any web browser. I have to surf these pages through java code using java api ( HttpURLConnection, HttpSession, URL etc...).
I am able to access login form, but after login when I connect second url, it gives session expired message in the html stream.
This is because I am not managing session. So can any body have any idea or pointer. How I can manage sesssion and access second page after succesfull login.
I will appreciate your help.
Thanks and regards -
Vikas Kumar Sahu.

The session is managed as a cookie (JSessionID if I'm not mistaken). So what you need is a way to obtain all cookies from an url and send them back to the server. Apache HttpClient is your best bet:
http://jakarta.apache.org/commons/httpclient/cookies.html

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<session-cookie is-secure="true"></session-cookie>
</vs>
After that, I restart the iplanet web server and load the page with I.E. again. I see that the cookie is still passed with non-secure mode.
Is there any wrong with my web-apps.xml?

Janice,
Thanks for your help.
When I use the below web-apps.xml, I can make the cookie in secure session.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE vs PUBLIC "-//Sun Microsystems, Inc.; iPlanet//DTD Virtual Server Web Applications 6.0//EN"
"http://developer.iplanet.com/webserver/dtds/iws-webapps_6_0.dtd">
<vs>
<web-app uri="/" dir="d:/java/docroot" enable="true">
<session-manager class="com.iplanet.server.http.session.IWSSessionManager">
<init-param>
<param-name>maxSessions</param-name>
<param-value>16000</param-value>
</init-param>
<init-param>
<param-name>timeOut</param-name>
<param-value>7200</param-value>
</init-param>
<init-param>
<param-name>reapInterval</param-name>
<param-value>30</param-value>
</init-param>
<init-param>
<param-name>maxValueSize</param-name>
<param-value>8192</param-value>
</init-param>
</session-manager>
<session-cookie is-secure="true"/>
</web-app>
</vs>
However, when I configure more on the web applicaiton with the web.xml, I check that the cookie no more secure.
THe web.xml is
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<display-name>Trade Info Exchange</display-name>
<description>
Trade Info Exchange
</description>

<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>/Login</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Fmenu</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.FmenuServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Fmenu</servlet-name>
<url-pattern>/Fmenu</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Fcontent</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.FcontentServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Fcontent</servlet-name>
<url-pattern>/Fcontent</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Express</servlet-name>
<servlet-class>com.chase.apps.express.servlet.EXPRESS2</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Express</servlet-name>
<url-pattern>/EXPRESS2</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>AppControl</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.AppControlServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AppControl</servlet-name>
<url-pattern>/AppControl</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>errorPage</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.errorPage</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>errorPage</servlet-name>
<url-pattern>/errorPage</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>LoginFail</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.LoginFailServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginFail</servlet-name>
<url-pattern>/LoginFail</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Logout</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.LogoutServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Logout</servlet-name>
<url-pattern>/Logout</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>ChangePwdWarning</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.ChangePwdWarningServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ChangePwdWarning</servlet-name>
<url-pattern>/ChangePwdWarning</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>ChangePwd</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.ChangePwdServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ChangePwd</servlet-name>
<url-pattern>/ChangePwd</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>ReLoginDialog</servlet-name>
<servlet-class>com.chase.infra.appcontrol.servlet.ReLoginDialog</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ReLoginDialog</servlet-name>
<url-pattern>/ReLoginDialog</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>TradeTrackProcessSearch</servlet-name>
<servlet-class>chase.app.tt.servlet.ProcessSearchServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TradeTrackProcessSearch</servlet-name>
<url-pattern>/TradeTrackProcessSearch</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>TradeTrackSearchScreen</servlet-name>
<servlet-class>chase.app.tt.servlet.SearchScreenServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TradeTrackSearchScreen</servlet-name>
<url-pattern>/TradeTrackSearchScreen</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>TradeTrackMain</servlet-name>
<servlet-class>chase.app.tt.servlet.MainServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TradeTrackMain</servlet-name>
<url-pattern>/LCIMPORT</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TradeTrackMain</servlet-name>
<url-pattern>/LCEXPORT</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TradeTrackMain</servlet-name>
<url-pattern>/COLLIMP</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TradeTrackMain</servlet-name>
<url-pattern>/COLLEXP</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TradeTrackMain</servlet-name>
<url-pattern>/B2BMenu</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TradeTrackMain</servlet-name>
<url-pattern>/B2BMain</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>ctielogin.html</welcome-file>
</welcome-file-list>
</web-app>
Pls advise how I can make the cookie secure for using the web.xml and web-apps.xml
thanks
samuel poon

How to combine Session Facade and Transfer object?

Hello All!
I'm working on an enterprise application. Presentation layer is a stand alone client, business logic is build on the Glassfish v2.1 and MySQL is used as a database. The client is connection to the GlassFishj server remotely using EJBs.
I have problems with business logic architecture.
Here is the brief description of backend application architecture design:
1. Session Facade pattern is used to simplify the client and application server interface and to provide application layers between backend (http://java.sun.com/blueprints/corej2eepatterns/Patterns/SessionFacade.html).
2.Transfer Object pattern to define update transfer objects strategy in order to decrease network overhead during client and application server interactions and to provide version control for objects. Transfer objects are designed as simple java business serializable objects. (http://java.sun.com/blueprints/corej2eepatterns/Patterns/TransferObject.html)
3. Originally the backend application consisted of three modules: users, storage and orders, but at the end I have decided to divide my application into the following parts - assortments, map, menu, orders, transactions, users.
4. All MySQL database transactions are via JDBC using procedures. No use of entity beans.
Questions:
1. I have some doubts about using Session Facade and Transfer object patterns at the same time. At first I'd mike to cite the definitions of the patters from the SUN official web site.
* Use a session bean as a facade to encapsulate the complexity of interactions between the business objects participating in a workflow. The Session Facade manages the business objects, and provides a uniform coarse-grained service access layer to clients.
* Use a Transfer Object to encapsulate the business data. A single method call is used to send and retrieve the Transfer Object. When the client requests the enterprise bean for the business data, the enterprise bean can construct the Transfer Object, populate it with its attribute values, and pass it by value to the client.
* So, if I use Transfer Object along with Session Facade, it makes some difficulties with object version control, because I 2 or
3 transfer objects controls with the 1 bean class. The best option for Transfer object Pattern is that each transfer object should have its own bean class to provide ability of object's version control. In the case it can bring the network overhead because of frequent remote calls caused by the large number of the bean classes.
* So, should I use the both patterns? If yes, how to manage the interaction the patterns. If no, which one to use.
2. E.g. I have a huge list of the Order objects and each Order object consists of other complicated objects. So, would I have trouble to transfer that list over network? If yes, how to manage it.
Thank you!
Astghik

Astghik wrote:
Hello All!
I'm working on an enterprise application. Presentation layer is a stand alone client, business logic is build on the Glassfish v2.1 and MySQL is used as a database. The client is connection to the GlassFishj server remotely using EJBs.
I have problems with business logic architecture.
Here is the brief description of backend application architecture design:
1. Session Facade pattern is used to simplify the client and application server interface and to provide application layers between backend (http://java.sun.com/blueprints/corej2eepatterns/Patterns/SessionFacade.html).
I would simply recommend establishing a service tier. Your services should be stateless. You can go the extra mile and have a session facade, but in the majority of cases, coding to an interface for your service accomplishes the same goals.
2.Transfer Object pattern to define update transfer objects strategy in order to decrease network overhead during client and application server interactions and to provide version control for objects. Transfer objects are designed as simple java business serializable objects. (http://java.sun.com/blueprints/corej2eepatterns/Patterns/TransferObject.html)
The idea of the transfer object is very similar to the Command pattern. I think if you investigate that pattern, it will be more obvious. The transfer object reduces network latency by consolidating all the parameters into an object, ideally, this also consolidates multiple method calls. If you combine a transfer object (or command object) with a service tier, you get the best of both worlds. The service can delegate calls to helper objects (or other services or components) using the data in the transfer / command object.
3. Originally the backend application consisted of three modules: users, storage and orders, but at the end I have decided to divide my application into the following parts - assortments, map, menu, orders, transactions, users.
The is your domain. It will vary from application to application. The principles above are more general (e.g., patterns and architectural tiers) and should apply to most domains. However, your actual use case may require something different.
4. All MySQL database transactions are via JDBC using procedures. No use of entity beans.
Consider using something like iBatis or Spring's JDBC templating to make your life easier with JDBC.
Questions:
1. I have some doubts about using Session Facade and Transfer object patterns at the same time. At first I'd mike to cite the definitions of the patters from the SUN official web site.
* Use a session bean as a facade to encapsulate the complexity of interactions between the business objects participating in a workflow. The Session Facade manages the business objects, and provides a uniform coarse-grained service access layer to clients.
* Use a Transfer Object to encapsulate the business data. A single method call is used to send and retrieve the Transfer Object. When the client requests the enterprise bean for the business data, the enterprise bean can construct the Transfer Object, populate it with its attribute values, and pass it by value to the client.
* So, if I use Transfer Object along with Session Facade, it makes some difficulties with object version control, because I 2 or
3 transfer objects controls with the 1 bean class. The best option for Transfer object Pattern is that each transfer object should have its own bean class to provide ability of object's version control. In the case it can bring the network overhead because of frequent remote calls caused by the large number of the bean classes.
* So, should I use the both patterns? If yes, how to manage the interaction the patterns. If no, which one to use.
Versioning is a separate issue. Generally, the more coarsely grained your transfer / command object is, the more changes are likely to impact dependent objects.
Your command or transfer object does not have to be a vanilla JavaBean, where you are basically creating a bean that has data from other objects. You can simply use your command / transfer object to encapsulate already existing domain objects. I see no need to map to a JavaBean with what you have described.
Generally, a method signature should be understandable. This means that many times it is better to pass the method, say, two coarsely grained objects than a signature with a dozen primitives. There are no hard and fast rules here. If you find a method signature getting large, consider a transfer / command object. If you want one service to delegate calls to a number of other services, you can also create a transfer / command object to furnish the controlling service with the data it needs to invoke the dependent services.
2. E.g. I have a huge list of the Order objects and each Order object consists of other complicated objects. So, would I have trouble to transfer that list over network? If yes, how to manage it.
This is a large, open-ended question. If you are going to display it to a user on a screen, I do not see how you avoid a network transfer with the data. The general answer is to not pass the data itself but rather a token (such as a primary key, or a primary key and a start and stop range such as you see on a Google search result). You do want to limit the data over the network, but this comes at a cost. Usually, the database will receive additional load. Once that becomes unacceptable, you might start putting things into session. Then you worry about memory concerns, etc. There is no silver bullet to the problem. It depends on what issues you are trying to address and what trade-offs are acceptable in your environment.
Thank you!
AstghikBest of luck.
- Saish

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Solaris 9
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Message was edited by:
user539835

See this thread:
Re: SQL_TRACE help to newbie in oracle
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How set a SESSION variable?
There is a standard object where could do this?
Thx in advance Roberto.

>I'm not at all sure that you CAN change the portal language in the way that you want.
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No i manage the language of WebDynpro myself, with tables from R3.
I wanna do only a thing like HTTP SESSION variable from the WEB.
I could do it, using java function of servlet, but i don't wanna use third packege out of WebDynpro FRAMEWORK.
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I wanna PERMANENT variable from a WebDynpro to another.
It is an implicit variable passage.
No one did something of similar?
Bye
Message was edited by: giovanni angerame

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Hi,
I Would like to know how to process sessions.
Regards,
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Refer to these links
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http://help.sap.com/saphelp_46c/helpdata/en/69/c2501a4ba111d189750000e8322d00/frameset.htm
<b>Processing Sessions Automatically</b>
http://help.sap.com/saphelp_46c/helpdata/en/69/c250414ba111d189750000e8322d00/frameset.htm
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Sub : How to manage session ?

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