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1. How can I get j_username on my index.jsp after successful authentication with j_security_check?
I'm using j_security_check on a login.jsp. The server is GlassFish Server 3. It all works, when the user is authenticated it then opens index.jsp. My problem is I need to get j_username in my index.jsp, but I couldn't find a way of doing it. All solutions I found are in Java and I need something that works with my jsp. Any ideas? Thank you very much in advance!
2. Get user's name regardless of authentication-realm
I'm developing a webservice in Java on a stack of Metro and Tomcat, and my problem is with the user authentication. I understand Tomcat can make use of several external authentication realms, such as JDBCRealm or JNDIRealm, and I want my endusers to configure their Tomcat installation for their respective realm. Now, what I need in my webservice-methods is the user name (or id, something uniqu...
3. How do I set a session variable(an int for the User's ID) after a person logs in using j_security_check in a Java servlet?
I want to store the the user's ID in a session variable to use across the application. I don't see how I'd do that with the default security feature? It authenticates itself and I don't know (if) there is a callback function or something? That we can use to do our house-keeping Any help is deeply appreciated
4. Accessing my custom user object in jsp page, using spring 3 security
I have implemented UserDetailsServce, it returns an instance of MyUser (which implements UserDetails) public MyUser loadUserByUsername(String arg0) I now want to access my custom getters/fields on MyUSer in my jsp pages, so far I got this: ${pageContext.request.userPrincipal.name} But that only allows access to a Principal object, how can I access MyUser object
5. How can I get the logged-in user's username using JDBCRealm?
I'm running Glassfish 3.0 and I'm implementing JDBCRealm for login authentication. The username and roles are saved in a table called usertable. The authentication is working as expected. But the problem is now when the user logs in, how can I retrieve the username of the logged in user in the application? PS: I'm implementing JSF page and Managed Bean 
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 /*
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package java.security;

This interface represents the abstract notion of a principal, which can be used to represent any entity, such as an individual, a corporation, and a login id.

Author(s):
Li Gong
See also:
java.security.cert.X509Certificate
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public interface Principal {

    
Compares this principal to the specified object. Returns true if the object passed in matches the principal represented by the implementation of this interface.

Parameters:
another principal to compare with.
Returns:
true if the principal passed in is the same as that encapsulated by this principal, and false otherwise.
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    public boolean equals(Object another);

    
Returns a string representation of this principal.

Returns:
a string representation of this principal.
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    public String toString();

    
Returns a hashcode for this principal.

Returns:
a hashcode for this principal.
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    public int hashCode();

    
Returns the name of this principal.

Returns:
the name of this principal.
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    public String getName();
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