I am a newbie constructing persistence APIs with Spring Boot, so I came about this doubt. I don't want the user to be able to register two different Accounts with the same Email. But I also don't want to use…
I am writing test for my service in spring boot @Component public class MyService { @Autowired StringRedisTemplate stringRedisTemplate; // a number of other @Autowired dependencies public User getUser(String uuid) { var key = String.format("user:%s", uuid); var cache = stringRedisTemplate.opsForValue().get(key); if…
I'm deploying a springboot application and I want to use a persistent DB. So, in application.properties file, I have spring.datasource.url=jdbc:h2:file:/home/ubuntu/db;AUTO_SERVER=TRUE; Now this works as long as I start this application without using a container. Now, I build a docker image…
I use Spring boot and telegrambots-spring-boot-starter dependency. I did all things as it showed in this repository: https://github.com/rubenlagus/TelegramBots/tree/master/telegrambots-spring-boot-starter. But it didn't work. My pom.xml: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.6.3</version> <relativePath/> <!-- lookup…
I want to build my spring boot app with a Postgres db in a docker container with docker compose. I got an error when I build the docker compose container. The spring app cannot connect to the Postgres db. The…
I am new to SpringBoot thymeleaf , I simple just make a registration page ,but when I fill the registration details and hit the register button in my registration page it throw below error SignUpPage.html <!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org">…
I've got the simple WebSocket example from https://spring.io/guides/gs/messaging-stomp-websocket/ package com.example.chatservice.message; import org.springframework.context.annotation.Configuration; import org.springframework.messaging.simp.config.MessageBrokerRegistry; import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker; import org.springframework.web.socket.config.annotation.StompEndpointRegistry; import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer; @Configuration @EnableWebSocketMessageBroker public class WebSocketConfig implements WebSocketMessageBrokerConfigurer { @Override public void configureMessageBroker(MessageBrokerRegistry config) { config.enableSimpleBroker("/topic"); config.setApplicationDestinationPrefixes("/app"); } @Override public void…
In my SpringBoot application I have 2 controllers. I am trying to render JSP page but unable to do so. I have <app-root> in JSP page which points to Angular application. On hitting http://localhost:8081//api/project1/mission/home I get below error. Whitelabel Error…
Two simple questions: Why is a Spring Boot application executed while creating a Docker image with the mvnw spring-boot:build-image command? Is there a command line option to prevent this from happening? I am building a Docker image for a Spring…
I am new to spring and trying to use Spring Initilizr for my project. I am using the code that was generated by this tool after adding dependencies for 'Spring Web' and 'Spring Data Redis'. When I open the generated…