I have a CRON trigger defined with Quartz, which successfully fires several times and ends up in error state after some cycles, with the following message (class names and package names have been redacted): Once this error happens, the trigger updates itself to ERROR state and won’t fire anymore. The st…
Tag: spring-boot
Spring boot with Stomp gives HttpMessageNotWritableException
I have been using spring boot with stomp server for websocket with sockjs as frontend library. Intermittently I get the following message in the logs. As far as I have read this occurs when wrong content type is recieved in controller. But this data comes in through websocket and all the data is made to strin…
define a zone around a point of given coordinates and tell if the user is in the zone
I have a DB with 8000 locations and their coordinates in WGS84, I need to give those locations a certain “action range” of 5/10Km ,if the user is in the given range the method should return true I managed to get an approximate user location from the front end using navigator.geolaction and it retu…
Stop Java service gracefully, executed using nohoup command
I am a beginner in java spring-boot when I start the java server through nohup java -jar demo-0.0.1-SNAPSHOT.jar command my threads start their operations After sometimes when I stop my server using kill -9 processid So my running thread data are lost. I want to maintain a thread flag in the database whenever…
How to upload files >32mb via Google Cloud Run
I implemented a Cloud Run process in Java with Spring Boot which consumes file uploads via HTTP. The uploaded files are sometimes over 32 MB in size. I know that 32mb is the fixed single-request limit under Cloud Run. The documentation of Cloud Run mentions two approaches to support the upload of larger files…
Is there such a query for mongodb?
I need to do a query on mongoDB due to I am developing in Java with Spring Boot and MongoDB. I know that this command is for arrays: This query let me to find if all fields of the arraylist “skillsOfCV” are in the arraylist called “skills” However, I am trying to pass an arraylist as &…
How to solve the @Bean required error while implementing JWT token
I am trying to do an authentication web API using spring boot. I have used spring security and JWT token methods to build this API. But at some Extent I get this error: Here is my JwtFilterRequest file: Here is my JwtUtils file: I tried adding @Bean annotation at the area and it throwed an error again that it…
Get element value from a POJO List
I have the following POJO. And I create new indexes in the POJO my adding it. How can I have access to any index element once created? How I would be able to access the 3rd element from 3rd row? Answer First go to the 3rd element, then go the specific field that you want to access. in this case.
How to send the data finded in the controller to a view?
I try to do a java web application using: SpringBoot Mysql JDBC Design pattern: MVC, DAO And Thymeleaf I think i understood than: I must create a class for every Entity and a DAO classe who use the annotation @Repository: Diabetic.java(Entity): DiabeticDAO.java: And create a controller like this where I use t…
Spring Boot: Cannot load configuration class
I am currently creating my first Spring Boot application. Unfortunately, I get an error right at the beginning that I can’t understand. POM Only some rudimentary dependencies are defined here. Java 8 and Spring Boot 2.0.1 are to be used. App Here the application is defined as a SpringBoot application. T…