I’ve configured my Spring app to authenticate logins using the /authenticate url, but each time I try signing in it throws the following error: org.springframework.web.servlet.DispatcherServlet.noHandlerFound No mapping for POST /authenticate I’m confused because as far as I’m aware, the log…
Tag: spring
Spring event lifecycle
To understand if the spring events fits the task im working on I need to understand how they work, where are they stored? as I can guess they are stored in a spring application context and disappears if the application crashes, is my guess correct? Answer Spring events are intended to use when calling methods…
Spring JPA/Hibernate – OneToMany bi-directional problem
I’ve encountered this problem that won’t let me sleep I have 2 entities Property and Tenant each property can have 0..1 tenant, each tenant can have 1..N properties what am I trying to accomplish is when I create a new tenant, using cascading I want to attach it to an existing property saving is d…
NullPointerException while send a otp mail using springboot
I was trying to send a otp mail using springboot. I have already created a login page from where the mail will be provided to sendotp(). Or you can help by providing code for how to send mail otp using springboot. Here is my code : OtpControllerclass – EmailSenderService class : Wnen I am calling sendOt…
org.springframework.orm.jpa.JpaSystemException: Don’t change the reference to a collection with delete-orphan enabled
i’m using spring data jpa. when i want to clone an entity with one to many relation, i set the purchaseOrder id =null, and each items id = null, but get the follw exception here is purchaseOrder entity and items entity can any one help with this? Answer No need to reassociate items and purchaseOrder , j…
How to insert all enums into database?
We have a list of ENUMS for different purposes. Sample Enum: we use .sql file to save this enums, Problem: We need to write values two times (One in enum and another one .sql statement) It seems not efficient way, Is any other way to save ENUMS to avoid this repetition? Answer From the above mentioned details…
how to configure spring security for spring boot project
I’m trying to make a web application that uses: SpringBoot, Mysql, JDBC , MVC, DAO Thymeleaf, IntelliJ And I’m trying to figure out how Spring security works (which I’m having a lot of difficulty with). My views are organized as follows: I would like to do that unidentified users can access …
Java Exception: Unauthorized: 401
I’m getting the error: Exception: org.springframework.web.client.HttpClientErrorException$Unauthorized: 401, when trying to connect to Jira through HttpHeader, and the credentials are configured in a configserver file, which would be this: And the method where I command to call the file above and where …
Validator Framework @Min, @Max, @NotBlank not working
I am trying my hand in Validator ANnotations and I dont seem to have the hang of it yet THese are my DTO THis is my controller This is my request body I am able to get a valid answer for this, it doesnt raise an error or send my error messages. I dont understand why??? Someone help please Answer
How to publish a Pub/Sub message with a Supplier bean?
I want to publish a Pub/Sub message in Spring according to the Google documentation (see https://cloud.google.com/pubsub/docs/spring#publishing-messages-using-stream-binder). The only problem is that I am new to Spring Framework and I have no idea of how to turn this example into something that I can use. Tha…