I’m trying to use spring cloud stream to solve the following problem: I have a class that calls two separated functions (Function A and B), both of those functions must work in parallel if the Function A finishes it must call the Function C, the same happens if Function B finish but this will call Function D, then I need
Tag: spring
Create custom finder with spring
I trying to implement a database with a many-to-many relationship.The database has been built, now we need queries to it. I’m using this article as an example: https://www.bezkoder.com/jpa-many-to-many/. When I create custom finder in Repository – server crushes at running. I have two Entity: MassageEntity and RstringsEntity. I’m trying to create a method List<MasageEntity> findMasageEntitiesByRstringsEntitiesId(Long string_id);. Without that method server
An APRI REST http request goes in 404
I am new with SpringBoot, and API REST, i used to develop in a Struts MVC SOAP project. When i try to run an API REST on a browser or with curl it goes in 404. here is my projec, the ide that I am using is IntelliJ IDEA 2021.3.3 (Community Edition): info about the ide pom.xml Controller The Object
how do i save a new student that contains entities, but don’t create these entities because they already exist in the database?
I want to save a student and a student has a TargetAudience object as an attribute. These target audiences are allready hardcoded in my database. (targetaudience = campus + major). Now when i post like this: it doesnt work because everythime it creates a new object for the campus and because i use name as a primary key it throws
How to copy object that has a list with BeanUtils?
I’m working on a multi maven modules and I want to copy from entity to model with BeanUtils, here what I tried: This is my entity (with getters/setter/noargs/allargs): and this is my model (DTO Model): This is the output I’m getting: The problem is that the fields get copied but the list does not it shows me an empty List.
How can I use more then one param in a spring boot rest Controller?
I want to achive the follwing URL to access my data with 2 params: http://localhost:8080/contactnote?entryDate=2022-02-01?contactType=T Both mappings with a single param is working: But when I try to combine them with two params it wont work, not one of them is usable. My reposiitory looks like this: Answer the URL you entered is invalid, double ?, you have to use
Using AOP and DI itself causes Spring ApplicationListener to be fired twice
Software versions Spring Version 5.3.18 and earlier JDK Version 1.8.0_202 Overview When I use Spring ApplicationListener, in order to prevent transaction invalidation, my ApplicationListener implementation class writes the following code (of course, the code can be written differently to avoid this problem), which will cause my listener to trigger twice after the event is published. I think it’s not normal,
How to add @RestController to spring-webflux apps?
The annotation @RestController cannot be resolved when only adding spring-boot-starter-webflux as maven dependency: pom.xml: What is missing here? According to many resources out there (eg https://medium.com/javarevisited/basic-introduction-to-spring-webflux-eb155f501b17), the webflux dependency should be sufficient for a webflux-webservice in spring-boot. Answer RestController annotation is part of org.springframework:spring-web: dependency org.springframework:spring-web dependency is part of org.springframework.boot:spring-boot-starter-webflux jar so it should get resolved. You can check
How can I connect a Python websocket client to my Spring endpoint?
I’m new to Python and I’m trying to connect to a service that I currently have up running in Spring. On the server-side I have a custom Handshake handler in place by extending DefaultHandshakeHandler and overriding the determineUser method, where I then extract the user information. However, when the request comes in, there is nothing to extract. What I would
How to upgrade spring framework version in spring boot
I am using spring-boot 2.3.3.RELEASE with the according spring-boot-starter-parent in maven. Due to the spring4shell CVE I wanted to upgrade the spring-framework to 5.2.20.RELEASE instead of the already included 5.2.8.RELEASE. I tried overriding the spring-framework.version property from spring-boot-dependencies. But it did not work. I also looked up the spring-boot-starter-web-2.3.3.RELEASE.pom and it has the spring-web dependency hardcoded to 5.2.8.RELEASE. Are there