How to set session attribute in java

Question

I am able to set session attribute in scriptlet  but when I am trying to set session attribute inside java class it shows error like  session cannot be resolved   So how to set session in java    lt  String username    String request getAttribute  un    session setAttribute  UserName   username    gt

User · Answer

By default session object is available on jsp page(implicit object). It will not available in normal POJO java class. You can get the reference of HttpSession object on Servelt by using HttpServletRequest

HttpSession s=request.getSession()
s.setAttribute("name","value");

You can get session on an ActionSupport based Action POJO class as follows

 ActionContext ctx= ActionContext.getContext();
   Map m=ctx.getSession();
   m.put("name", value);

look at: http://ohmjavaclasses.blogspot.com/2011/12/access-session-in-action-class-struts2.html

User · Answer

I am try to catch your point I hope it is helpful       if  session isNew          title    Welcome to my website        session setAttribute userIDKey  userID

User · Answer

Java file   Jclass java  package Jclasspackage  public class Jclass        public String uname                   return the uname             public String getUname             return uname                         param uname the uname to set             public void setUname String uname            this uname   uname             public Jclass             this uname   null             public static void main String   args               JSP file  sample jsp       lt    page language  java      import  java util   java io        pageEncoding  ISO-8859-1   gt    lt jsp directive page import  Jclasspackage Jclass java    gt      lt   Jclass jc   new Jclass    String username    String request getAttribute  un   jc setUname username     gt    -----------------  In this way you can access the username in the java file using   this username  in the class

User · Answer

Try this    lt   page language  java  session  true    gt

User · Answer

By Java class  I am assuming you mean a Servlet class as setting session attribute in arbitrary Java class does not make sense You can do something like this in your servlet s doGet doPost methods  public void doGet HttpServletRequest request  HttpServletResponse response         HttpSession session   request getSession        String username    String request getAttribute  un        session setAttribute  UserName   username

[java] How to set session attribute in java?

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