how to check if record exists in DB table?
hey guys. can smb help me out? in my repo class i have this:
...
@Query(value = "select count(1) from my_tablewhere transaction_id= :transactionId",nativeQuery = true)
boolean existsByTransactionId(@Param("transactionId") String transactionId);
@Query(value = "select count(1) from my_tablewhere transaction_id= :transactionId",nativeQuery = true)
boolean existsByTransactionId(@Param("transactionId") String transactionId);
service deletes DB records, but i still get `No results were returned by the query`
hey guys. can smb help me out? i have this service:
```java
public void createPaymentpaymentReversal(PaymentDTO paymentReversalRequest) throws NoEarlierPaymentException {
Optional<Payment> earlierPayment=paymentRepository.findByTransactionId(paymentReversalRequest.getTransactionId());
...
apache Mina sshd
If anyone had expierence with Apache Mina and setting up a ssh server please tell me.
I got an issue where my client session are mixxed up if there’s more than 1 of them… (the 2nd user becomes the first)
Tell me guys I am tired of posting the code...
How do I use UserDetailsService properly? Where do I define it exactly?
I was going through spring security's docs and found this
```java
@Configuration
@EnableWebSecurity...
Spring app doesn't read environmental variables from .env
I have .env file in my project root folder along with pom.xml. Contents:
```
APP_PASSWORD=my-app-password
DATABASE_PASSWORD=Tomasm21-xi
DATABASE_USERNAME=Tomasm21...
RestApi Access Problem
When i try to access the Rest Api from postman then i got the html of login i even permit the enpoint of api ```@RestController
@RequestMapping("/api/Student")
@CrossOrigin(origins = "http://localhost:3000")
public class RestApplication {
...
Spring Boot Security / Request = 500
Hello guys, I'm a beginner here who's trying Spring Boot security.
I'm trying to sign in with the httpSecurity but when I do my sign-in request, SPring boot redirects me to the famous ```Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback....
why use Optional<MyClass> if you cant call any methods that MyClass has?
hey guys. can smb explain to me what wrong? im trying to retrieve an object from DB:
Optional<Payment> earlierPayment=paymentRepository.findByTransactionIdAndAmount(paymentConfirmationRequest.getTransactionId(), paymentConfirmationRequest.getAmount());.
and for some reason i cant call any getters that my Payment entity has. does it mean that id need to change the return type of findByTransactionIdAndAmount from Optional<Payment> to just Payment? and then id loose the advantage Optional gives me. that doesnt make any sense 😦
any help? thanks...how to convert long to int
hi fellas. i was wondering i you could help me. in postgre db i have a field order_time. its data type is int4. there are a couple of records, where order_time is 1536936174. so i have a couple of questions:
1. i was wondering how to set this field value, when im doing insert in my Java code?
2. why the date is stored in a column that has datatype of
int4? why not date or datetime?
3. in java code i see that my entity is private Long orderTime, so does that mean theres a mistake in the code and i need to use Long in the database too? or do i use int in my Java code?
...Mocking fails for some reason
```java
@SpringBootTest
@TestPropertySource(locations = "classpath:application-test.properties")
@DirtiesContext(classMode = DirtiesContext.ClassMode.BEFORE_EACH_TEST_METHOD)
class UserServiceTests {...
dependency isnt injected into my service
hey guys. can smb help me out. i have a service
```java
@Service
@Slf4j
public class MyService {...
Failing test under misterious circumstances
https://github.com/KoblizekXD/notecz-backend/blob/4a70434b5c139b2d6bf5c6953fbf49a92cebded5/src/test/java/lol/koblizek/notecz/api/user/UserServiceTests.java#L49
this test seems to be failing, altough when i try to run UserRepositoryTests and test the validation, it correctly throws an exception, but here the saveAndFlush just returns null......
Trying to load a Font from resources throws a BufferUnderflowException
I am trying to load a Selawik font from my project's resources with following code:
```java
try (InputStream is = getClass().getResourceAsStream("/fonts/selawk.ttf")) {
Font selawik = Font.createFont(Font.TRUETYPE_FONT, is);
}...
some help needed with fixing circular dependencies
hey guys. can smb help me out with fixing circular dependencies?
```
The dependencies of some of the beans in the application context form a cycle:
infoRestController...
do i need to return DTO from my controller when handling errors?
hey guys. i want to ask for some help. in my service i do some checks and throw custom exceptions which later i handle in
RestResponseEntityExceptionHandler. it looks like this:
```java
@ControllerAdvice
@Slf4j
public class RestResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {...Spring Boot Microservices with JWT Issues
I try to implement an example of Spring Boot Microservices with JWT. I have some problems following:
1 ) I cannot run all integration tests of product service even if I defined bearer token
2 ) After login and get access token, I cannot send any request to product service. I got 500 Internal Server Error.
How can I fix it? I hope you can help me?
Here is the repo : https://github.com/Rapter1990/springbootmicroserviceswithsecurity...
Help with Lombok
I am making utility methods for sending discord webhooks.
my goal is this:
```java
DiscordWebhook webhook = DiscordWebhook.builder()
.webhookURI(new URI("https://discord.com/api/webhooks/123"))...
Spring Boot @Mapping gives no read accessor error
Hello! I'm trying to use @mapping to map a DTo from entities
My Main DTO is
```
public class MainDto {...
how to properly handle case when theres no records in the db table?
hey guys. so i have my CustomerRepo in my service and i want to handle a scenario when there are no customers with given id. so far i have this:
```java
Optional<Customer> customer=customerRepository.findById(Long.valueOf(paymentInformationRequest.getClientId()));
if (customer.isEmpty()) {
log.info("BGWService.createPaymentInformation. no customer with id: {}", paymentInformationRequest.getClientId());...