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org.hibernate.hql.internal.ast.QuerySyntaxException: Employee is not mapped [from Employee];
help you fix your problem This problem occurs only when the table name you have mentioned in the query is not matching with the entity. The table name used in the query is not the one in the real database, it should be the name of the entity class. I
TAG :spring
Date : October 18 2020, 06:10 PM , By : sham desai
Appropriate Oracle download for hibernate-dialect org.hibernate.dialect.Oracle9Dialect
will be helpful for those in need 9 is an older version of Oracle Database that is no longer supported, and it is no longer available for download from Oracle's Database Software Downloads page. The Oracle9Dialect was deprecated back in 2008, so I wi
TAG :spring
Date : October 17 2020, 06:10 PM , By : Ihsan Abdurahman
spring boot https PKCS12 DerInputStream.getLength(): lengthTag=111, too big
hop of those help? I found the problem, there was a resource filter plugin in my pom.xml destroyed the key file. I had to exclude the key file from resource filter plugin.
TAG :spring
Date : October 15 2020, 06:10 AM , By : florigo
JPA Native query puts parentheses wrong for List paremeter on INSERT INTO VALUES
wish helps you No, your idea is nice but will not work with Spring Data, because: list parameter expansion happens only as a comma-separated list of data values (a, b, ...), not a list of records or rows (a), (b), (...) data-modifying statements that
TAG :spring
Date : October 14 2020, 06:10 PM , By : newyorkmobileapps.co
How to connect JPARepository with ItemReader using spring batch?
I hope this helps . I need to connect with jpa repository from ItemReader using spring batch for Database to text file export. But as of now i tried using JdbcCursorItemReader class to retrieve the data from db. I need to connect with Repository usin
TAG :spring
Date : October 14 2020, 01:00 PM , By : micgrig
Spring Data MongoDB + Spring Boot starting twice?
With these it helps I encountered the same symptoms. It appeared that I had a Configuration class that implemented AbstractReactiveMongoConfiguration, which caused a MongoClient to be created twice. Leaving the client creation to the framework and co
TAG :spring
Date : October 13 2020, 10:00 PM , By : El Cid
@Service vs @Component in Spring
seems to work fine We can directly use @Component for each and every bean, but for better understanding and maintainability of a large application, we use @Controller, @Service, @Repository.
TAG :spring
Date : October 13 2020, 02:00 PM , By : p.d.p
Validation in spring boot rest controller
will be helpful for those in need The most widely used validation api with spring boot is - javax-validation-api - https://mvnrepository.com/artifact/javax.validation/validation-api/2.0.1.Final
TAG :spring
Date : October 13 2020, 10:00 AM , By : Ivan Mitov
How Rest Controller handle multiple request at same time for a single instance application?
this one helps. From the point of view of Spring (Application Context) rest controller is a singleton if not specified otherwise.So the code of controller must be ready to be invoked by multiple threads simultaneously.
TAG :spring
Date : October 13 2020, 05:00 AM , By : user6025951
Error : java.lang.ClassNotFoundException: org.hibernate.cfg.AnnotationConfiguration
should help you out You are using Spring Boot 2.1.3 which depends on Spring 5.1. The Spring 5.x line works only with Hibernate 5.x, support for earlier versions has been dropped. The spring-boot-starter-data-jpa dependency already includes the hibern
TAG :spring
Date : October 13 2020, 05:00 AM , By : Stanislavas Goldycki
Does @Value support letting default value reference another @Value?
wish help you to fix your issue I think the best thing you can do is to define test.v2=${test.v1} in your application.properties file. This way, if you override the value for test.v2 through some other ways like environment variables, it will have th
TAG :spring
Date : October 12 2020, 02:00 PM , By : Raag
Spring boot 2: Fail to reach controller method
will help you Your ComponentScan is incorrect, please check the packages (these package names do not exists):
TAG :spring
Date : October 12 2020, 01:00 PM , By : Shweta
Execute state actions synchronously
this one helps. I would like to use a Synchronous task scheduler, but I don't think there's such a thing.
TAG :spring
Date : October 12 2020, 12:00 PM , By : upulr
How to access application.yml properties in Spring 1.5.9
will help you For getting value from application.yml you should be using @Value from the package org.springframework.beans.factory.annotation.Value but you are using lombok's @Value
TAG :spring
Date : October 11 2020, 11:00 PM , By : bryan.peters
CORS settings in Spring boot does not work
hop of those help? I have Springboot (v 2.0) application. I enabled CORS in the application.properties as below.
TAG :spring
Date : October 11 2020, 05:00 PM , By : Eric Waideman
Spring boot log settings in application.yml
Hope this helps I'm building a spring boot application. I use logstash to create structured logs, and this works great. However, I'm trying to move the following logback.xml to application.yml. , Root level can be configured like this:
TAG :spring
Date : October 11 2020, 01:00 PM , By : Anindya
how to get KafkaListener Consumer
hope this fix your issue If you want to seek the consumer in the listener itself, simply add a Consumer consumer parameter to the listener method.Bear in mind that the container may have fetched more messages so you will get them before the seek take
TAG :spring
Date : October 11 2020, 09:00 AM , By : Tomasz Kula
spring webflux webclient response convert list of string to string
it should still fix some issue The first issue is that the API you're using is not returning a single object, but an array of objects, indicated by the square brackets ([]).This means you should at least refactor your code to use bodyToFlux() in stea
TAG :spring
Date : October 11 2020, 06:00 AM , By : 정성욱
What are this Spring version names?
will help you The names Celsius, Darwin, Einstein etc are release names of the Spring Cloud Stream App Starters project. The documentation for the same can be found here. They are in alphabetical order, ie Einstein is the newer than Darwin (Similar t
TAG :spring
Date : October 11 2020, 02:00 AM , By : Linda Castrejon
Correct guide about spring Oauth 2
help you fix your problem Both guides are correct.The first guide you mentioned (https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle) uses the newer OAuth 2.0 functionality in the Spring Security project, so it's recommended
TAG :spring
Date : October 11 2020, 01:00 AM , By : Simon
How does Spring Boot application with application.yml behave for when dependency also has an application.yml file
wish help you to fix your issue The two will get merged. Properties with the same name: the values in your application's application.yaml will override the values from the dependencies application.yaml. Properties which are not overwritten (defined i
TAG :spring
Date : October 11 2020, 12:00 AM , By : researcher1
Spring batch unit testing job with external input and db output
around this issue Are you reading input files from disk? If so you can edit the input file source directory only for tests to be within the src/test/resources/input_dir/your_test_file.xml for example.If the input file directory is configured with pro
TAG :spring
Date : October 10 2020, 08:00 AM , By : abdelrhman hadidy
Does Apache Camel replace or complement creating micro-services with Spring Boot?
To fix this issue Apache Camel has nothing to do with microservices.It's an implementation of the Enterprise Integration Patterns: https://www.enterpriseintegrationpatterns.com/
TAG :spring
Date : October 10 2020, 06:00 AM , By : João G. Clene
Redis Cache memory Status
around this issue Yes it is possible. I'm telling you how to do it using Redis-client: JedisAfter adding jedis dependency into your project you can define a bean like:
TAG :spring
Date : October 10 2020, 02:00 AM , By : Ana Ribeiro
ConstraintValidator dependency injection leads to ValidationException when being validated at class level
To fix the issue you can do The exception says that there is no default constructor because Hibernate Validator tries to instantiate your validator.You have to use Spring.
TAG :spring
Date : October 10 2020, 01:00 AM , By : Sigurður Guðbrandsso
How can I map the fields return in JSON with my entity provided the key in JSON has different name than fields in my ent
it fixes the issue You can use the @JsonAlias() to give the variable more than one JSON key binding.
TAG :spring
Date : October 09 2020, 08:00 PM , By : Phaedra Debique
Content type 'application/x-www-form-urlencoded' not supported" for post method
hope this fix your issue You have to add Content-type: application/json;charset=utf-8 header to your request. By default (if Content-type header is absent) content type of POST request body is application/x-www-form-urlencoded. In @RequestMapping by
TAG :spring
Date : October 09 2020, 03:00 PM , By : Tamurrugesan Tamurru
How can i use Myfaces 2.3, Primefaces Elite 7.0.4 & Extensions and Omnifaces 3.3 together in a SpringBoot applicatio
it should still fix some issue JoinFaces is the way to go: http://joinfaces.org/You can use their starter app to configure Spring boot for PrimeFaces, OmniFaces, MyFaces etc. See: https://joinfaces-example.herokuapp.com/starter.jsf
TAG :spring
Date : October 09 2020, 01:00 PM , By : wulinux79
Reactive WebClient of non-reactive remote server
I think the issue was by ths following , No. Without application/stream+json or similar content type, Flux is treated and serialized like an ordinary list.
TAG :spring
Date : October 09 2020, 08:00 AM , By : Surf Accounts
Enable properties only for testing in Spring
wish helps you Put a copy of application.yml with desired test properties in your src/test/resources directory.
TAG :spring
Date : October 09 2020, 06:00 AM , By : jeanUwacu
PrematureCloseException: Connection prematurely closed
Hope this helps so i finnaly found a way to finish the response and i will share here for anyone who come across this problembefore i had this:
TAG :spring
Date : October 08 2020, 10:00 PM , By : Dear Sir
Spring application - Override app properties by test properties
I wish did fix the issue. If you are referring to when running test classes for your application you can include the annotation @ActiveProfiles("test") above the class to include the app1-test.properties configuration.The top of the class should look
TAG :spring
Date : October 08 2020, 09:00 PM , By : Louise Philippe
Proper way to response nothing to ajax request on Spring
I wish this help you Add the @ResponseStatus(HttpStatus.NO_CONTENT) annotation to the controller route and then you do not need to return anything. Your prototype will be "public void doSomething()".We use this for delete calls.
TAG :spring
Date : October 08 2020, 07:00 PM , By : H Nghiem
Spring Boot - Push message to Angular UI
it fixes the issue The backend cannot magically push updates to a client UI. The backend will have no way of knowing where the UI exists (i.e. what the UI's ip address is) and even if it did, it may not have access to establish a connection (due to f
TAG :spring
Date : October 08 2020, 05:00 PM , By : user6040936
Spring boot: path param is null
I wish this helpful for you I've coded this controller method implementation: , You are missing @PathVariable
TAG :spring
Date : October 08 2020, 05:00 PM , By : Ros
A UserDetailsService must be set Error in Spring Boot app
Hope that helps So I was able to fix this using the following:For the SecurityConfig.java:
TAG :spring
Date : October 08 2020, 09:00 AM , By : Frederick Michna
How does Spring convert config values with units to natural numbers
With these it helps I can add these values to my config files: , Short answer is that it doesn't.The example property
TAG :spring
Date : October 08 2020, 09:00 AM , By : The Gentleman
How to disconnect from rabbitmq after each test?
I wish this helpful for you Well, to be honest a @DirtiesContext on all the test classes level, alongside with the @RunWith(SpringRunner.class), is the way to. The ListenerContainer is an active component which starts its own threads, so even when yo
TAG :spring
Date : October 08 2020, 02:00 AM , By : ajay thakur
Autowiring of beans in spring boot with @Qualifier annotation
it fixes the issue The use of qualifier annotation here is incorrect, the qualifier annotation is used on a field, a parameter or a method to pick the write candidate bean while authowiring,
TAG :spring
Date : October 07 2020, 02:00 PM , By : Safa Belhaj Messaoud
Spring Cloud Gateway not starting when deployed as WAR showing webFluxConversionService error
wish of those help Spring Cloud Gateway does not support WAR deployments. It is based on Spring Webflux and Spring Boot does not support war deployments of webflux.From the documentation:
TAG :spring
Date : October 07 2020, 01:00 PM , By : Alorain
How to return response as Json from spring filter?
will be helpful for those in need Assuming you have Jackson's ObjectMapper exposed as a Spring bean, you could use the following for a OncePerRequestFilter:
TAG :spring
Date : October 07 2020, 10:00 AM , By : Sal DiStefano
Spring OAuth2 ResourceServer dependency hell
seems to work fine Which Spring Project or Starter does this dependency refer to? Is the matrix outdated?
TAG :spring
Date : October 07 2020, 08:00 AM , By : Caio Gondim
How can I use @Transactional in multithreaded environment
should help you out Since there is no code... In order to get it to work you must Annotate your delete method with @Transactional - lets call it delete Invocation of that method must be from outside of the bean in order for AOP to kick in
TAG :spring
Date : October 07 2020, 06:00 AM , By : Joern-peter Lipp
Can not access controller.RestController for maven build
I think the issue was by ths following , Error clearly says Compilation failure, add following import statement in your class AccountController, it will work
TAG :spring
Date : October 06 2020, 10:00 PM , By : J.Doe
Spring Boot Tries to Access A Post Request URL but shows GET not supported
seems to work fine If you try to open the http://localhost:8080/testpost by directly opening in browser, it won't work because opening in browser makes a GET request.I am not sure how you are trying to do a post request, I tried to do the same post r
TAG :spring
Date : October 06 2020, 08:00 PM , By : etudiante
Jackson Mapping Issue
I wish this helpful for you In the case of Request JSON mapping Spring uses getter and setter to set the properties of RequestBody Object. Does Student have getter or setter of List? if have setterName should be same as JSON key semester oR use
TAG :spring
Date : October 06 2020, 03:00 PM , By : Les
Kafka consumer not committing offset correctly
Does that help If you are using Spring for Apache Kafka, we recommend setting enable.auto.commit to false so that the container will commit the offsets in a more deterministic fashion (either after each record, or each batch of records - the default)
TAG :spring
Date : October 06 2020, 02:00 AM , By : Ronnie Ray Long JR
How does spring security maintain authentication information between request?
it helps some times Spring Security uses a SecurityContextRepository to store and retrieve the SecurityContext for the current security session. The default implementation is the HttpSessionSecurityContextRepository which utilizes the javax.servlet.h
TAG :spring
Date : October 06 2020, 02:00 AM , By : Juliano Garcia
Best practice of Spring Security with user details storage in microservices
should help you out One of the best practice to use Spring Security on a microservice architecture is to use the OAuth2 mechanism with JWT tokens. Since the microservices are stateless, the JWT tokens provides a way to identify the user information.
TAG :spring
Date : October 06 2020, 12:00 AM , By : Eric M
It takes too long to send response (http status) back with sending emails
Any of those help I think a feature like sending email is better working in a separate thread. ex) thread pool, message queue, ...
TAG :spring
Date : October 05 2020, 11:00 PM , By : Rishab Awasthi
How does DelegatingFilterProxy know which filter to call to delegate the doFilter call?
will be helpful for those in need Does DelegtaingFilterProxy use reflection to know the name of it's object and use this name to find the name of the filterchainproxy bean and thus delegate the request to the correct filterchain class ?
TAG :spring
Date : October 05 2020, 09:00 PM , By : Rekimo
Should services fetch its configuration through gateway or directly through Configuration Server?
it should still fix some issue Only user's requests from UI need to be passed via Gateway. Services should be able to fetch their configuration during startup disregarding whether gateway is online or doesn't exist at all.Also I'd advise you to avoid
TAG :spring
Date : October 05 2020, 06:00 PM , By : Sangkdennis
When autowiring does a copy of the instance get returned?
To fix the issue you can do By default, yes, beans are singletons. But, the Spring framework defines a number of different scopes.singleton Scopes a single bean definition to a single object instance per Spring IoC container.
TAG :spring
Date : October 05 2020, 12:00 PM , By : Code4Fun
Is it possible to secure only one spring boot rest endpoint via certificate?
I wish this helpful for you I'm going to break your question into two parts because they are two separate concerns with Spring Security.
TAG :spring
Date : October 05 2020, 02:00 AM , By : Demus
Spring Data JPA Repository Method Query Cannot Parse Property Name Following OrderBy
wish helps you My Repository Method Query cannot parse a property name that comes after the OrderBy, but it can if it follows the findBy or findAllBy. The attribute in my entity that is giving me issues is zIndex , Yes there is a bug but there is a s
TAG :spring
Date : October 04 2020, 10:00 PM , By : Sud
Is it necessary to use main method when we develop web application using spring boot?
will be helpful for those in need Spring boot supports two modes of work: using embedded server (tomcat, jetty, whichever you choose). In this mode, you need a main method to start it using external sever. In this mode, you need to pack your project
TAG :spring
Date : October 04 2020, 11:00 AM , By : Magne Hov
Reduce Flux to form Mono
fixed the issue. Will look into that further To achieve this, my initial approach is to make sure Flux is completed using then and after that manipulate data.
TAG :spring
Date : October 04 2020, 11:00 AM , By : theHonj0
Spring Batch - Issue in understanding how reader works
Hope that helps i am currently developing a application to generate csv sheet from database resultset. , In my setup the following works:
TAG :spring
Date : October 04 2020, 05:00 AM , By : Nijaz Sulic
How do I use Oracle 12c Automatic Identity Generation with Hibernate, Spring and JPA?
seems to work fine To use the Oracle 12c Identity Generation, use at least Hibernate 5.3. Example:
TAG :spring
Date : October 03 2020, 04:00 PM , By : Sean M
The best practise for logging large messages
will be helpful for those in need This is not recommended in production, as it affects efficiency of log files usages. Also it raises security concerns if the message has sensitive data.If it still needs to be done, one of below approaches can be use
TAG :spring
Date : October 03 2020, 03:00 AM , By : Devindra Kalsariya

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