He Principal type depends on the Realm that you are using.
The Principal type of Map is for example purposes only.
In your code, you would substitute the type passed into byType() method with
the appropriate type.
Or you can use Subject.getPrincipal() that returns Object type and cast to
appropriate type manually.
> On Apr 13, 2024, at 12:50 PM, Helge Wiemann <h...@feedbager.de> wrote:
>
> Hi,
>
> thanks for the sample code.
>
> But I questions because I got some problems to understand the code:
>
>
> Collection<Map> principalMaps = subject.getPrincipals().byType(Map.class);
> if (CollectionUtils.isEmpty(principalMaps)) {
> name = subject.getPrincipal().toString();
> } else {
> name = (String)
> principalMaps.iterator().next().get("username");
> }
>
>
> When the map of the principals is empty, why and how do I get then the logged
> user by getPrincipal? I would expect that a call of getPrincipal() is null
> because the map is empty.
>
> When the map is not empty, I got the first entry of the map as principal. But
> for instance three users are logged in, how do I got the correct one out of
> the map?
>
>
> Am 13.04.2024 um 17:53 schrieb le...@flowlogix.com:
>> Hi,
>>
>> Take a look at Shiro’s SpringBoot 3 example.
>> This should get your started:
>> https://github.com/apache/shiro/blob/main/samples/spring-boot-3-web/src/main/java/org/apache/shiro/samples/HelloController.java
>>
>> <https://github.com/apache/shiro/blob/main/samples/spring-boot-3-web/src/main/java/org/apache/shiro/samples/HelloController.java>
>>
>> Let us know if you have any further questions.
>>
>>> On Apr 13, 2024, at 10:29 AM, Helge Wiemann <h...@feedbager.de> wrote:
>>>
>>> Hi all,
>>>
>>> I am quite new to Shiro and currently moving from Spring Security to Shiro.
>>>
>>>
>>> One question: After a user is successfully authenticated and authorized,
>>> what is the best way to get the user in a Spring controller method?
>>>
>>> With used Spring Security it was something like that:
>>>
>>> publicModelAndView
>>> index(*@AuthenticationPrincipalUsernamePasswordAuthenticationTokenauthenticatedUser*,
>>>
>>> HttpServletRequest request, HttpServletResponse response) throwsIOException
>>> {
>>>
>>>
>>> Best regards,
>>>
>>>
>>> Helge
>>>
>>
>
