Spring boot environment is null. 我调试的大概一个过程,BeanFactoryPostProcessor Bean创建得比较早,创建它之前先创建它的依赖Bean Configuration,而这时发现创建的Configuration的env 2 I'm trying to configure an h2 datasource for junit testing using Spring java configuration and loading properties from external file. But it is always returning Null profile. I am new to using application. I configured it by xml. I am trying to use Environment abstraction & @PropertySource of Spring to load and use properties in my @Configuration annotated classes. The general principle is that, as of Spring Boot 4. So make the class as spring-managed class In this article, we will explore the most common causes of null @Autowired fields and provide practical solutions to resolve them. This means that your mocked Environment from the test class is not injected into your test subject class. 2. So make the class as spring-managed class In this article we will learn 4 ways to prevent Spring Boot app from starting when environment variable is missing. However, if @Value is returning null, it is likely due to a few common misconfigurations or misunderstandings about Spring's property resolution system. In Spring Boot, the @Value annotation is used to inject property values into your beans. env" is null This way Spring cannot (annoyingly) inject a stringified value like "" or "~" or "null", and will be forced to look for a default value. Spring Boot lets you externalize your configuration so that you can work with the same application code in different environments. com/eugenp/tutorials/tree/master/spring-5-security-oauth. yml files, but it's important to know when to require a variable, leave it empty, or provide a default value. String to java. Learn how to use environment variables in Spring Boot's application. 2k次。本文探讨了 Spring Environment 对象出现为 Null 的常见原因，并提供了有效的解决方法。针对这一问题，博主分享了一篇详细的技术文章链接，旨在帮助开发者快速定位并解决问题。 spring boot Environment null，#深入了解SpringBoot中Environment的作用与使用在使用SpringBoot进行开发时，我们经常会接触到`Environment`这个类。 `Environment`是Spring框架中的一个核心接口，用于表示应用程序运行时的环境，包括属性、配置文件等信息。 For some context: The component needs to do logic based on the current environment. However I get Environment as null in my PropertyConfig I've tried various forms of null, NULL, #{null} but always end up with failed to convert java. x I am trying to get Spring active profile in JPA Entity Listener using System. @Autowired Environment env; I am trying to use Environment abstraction & @PropertySource of Spring to load and use properties in my @Configuration annotated classes. You haven't shown us the part of your class where environment is supposed to be set. Discover four effective ways to configure environment variables in Spring Boot to strengthen security, scalability, and flexibility in your applications. While `@Value` is simple to use, improper implementation can lead to bugs, security risks, or maintenance I am trying to access some properties programmatically in a controller of a spring mvc application. } I tried following the answers provided in the below questions Spring Boot - Environment @Autowired throws NullPointerException Autowired Environment is null I am looking for suggestions on solving the issue. But the autowired Environment from SecurityConfig. Implementing EnvironmentAware interface solved this problem. java is null. 0 and Spring Framework 7. getEnvironment (which are both the same). git I also made modifications to use an embedded jetty instead of tomcat but still no success. Since this factory is only required within the production environment, not while I'm developing though, I put the bean Exception in thread "main" java. Aug 29, 2025 · Is your @Autowired field in Spring returning null? Discover the top reasons, solutions, and best practices for dependency injection in Spring Boot. Avoid NullPointerException now! Jul 23, 2025 · When working with the Spring Framework, developers often face a common challenge which is @Autowired fields being null at runtime. 2 @Value returns null because of the following reasons, so make sure 1. Spring Boot supports flexible environment variable interpolation in your application. Solution: Make sure your application is running in a Spring-compatible environment, either via a web server or a Spring Boot I'd like to write some tests that check the XML Spring configuration of a deployed WAR. You may be interested in Spring Cloud's support for changing the environment and its refresh scope. But I am getting Environment as null. Environment. setEnvironment() method is being called on the I am able to resolve my variables using @value annotation but not via autowired Environment or WebApplicationContext. I used the sample app: https://github. When following the tutorials and using @PropertySource and autowiring the Environment I find that when creating the datasource the Environment is null. env. Configure AWS RDS (Aurora, MySQL, PostgreSQL) with Spring Boot applications. 1 schema or the @Profile annotation for syntax details. I tried both PropertyPlaceholderConfigurer and <context:property-place Discover why the @Value annotation in Spring Boot might return null and how to fix common issues. I am trying to get Spring active profile in JPA Entity Listener using System. We’ll also explain how to fix the problem. In your Spring configuration, check if the environment variable is an empty string and set the property to null accordingly. getProperty null - Spring-Boot Spring-Cloud Asked 10 years, 7 months ago Modified 6 years, 4 months ago Viewed 4k times I have a springboot java application with gradle and some environment variables in application. Sep 25, 2023 · On this page we will learn the common causes for null value of an @Autowired field in Spring Boot application. Learn how to fix the issue of null Environment in your Spring configuration using correct autowiring techniques. com/spring-guides/gs-spring-boot. Following is my configuration. This is why Environment is null in the Word2VecRestController constructor. The EnvironmentAware. How can you get the currently active and default profiles from Spring? I try to add OAuth2 support to my program, and I follow the tutorial for https://github. One of the most common ways to inject these variables into your application is using the `@Value` annotation. Since there is no way to set the environment manually, a lot of the @Properties annotations won't work - setting 1 Your environment is null, hence the NullPointerException. NullPointerException: Cannot invoke "org. singleton(env. However I have checked on server and pro Understanding null safety in Spring Framework: Explore annotations like @Nullable, @NonNull, and JSR-305 meta-annotations for robust Java development. The role of the Environment object with relation to profiles is in determining which profiles (if any) are currently active, and which profiles (if any) should be active by default. However I have checked on server and pro Solution: Double-check and ensure the appropriate annotations like @Component, @Autowired, and @Configuration are correctly implemented. For most Java teams, it is a platform migration touching Java baseline, Jakarta alignment, dependency graph, packaging behavior, test setup, and especially JSON handling with Jackson 3. You can try constructor injection if you need it in the constructor: Set<String> topics = Collections. 文章浏览阅读1. 0 is not a routine version bump. You can try constructor injection if you need it in the constructor: 10 I'm new to the Java world and Spring boot, and I'm trying to access some configuration values located in a YAML file through the ConfigurationProperties annotation. The class in which you use @Value is not declared as any of the spring initialized class for ex: component,service,repository. yml : spring: profiles: development server: port: 3100 database: connectionString: mongodb:// 16 Field injection is done by Spring after the constructor is called. Duration (caused by java. On this page we will learn the common causes for null value of an @Autowired field in Spring Boot application. This issue typically arises from misconfigurations or incorrect usage of the dependency injection (DI) mechanism. properties and am struggling because Environment is always null. Use when setting up datasources, connection pooling, security, and production-re Sample Spring Boot Application generated with Claude Code on Ollama - piomin/claude-ai-spring-boot Hi everyone 👋 Continuing the weekday Spring Boot series with another useful annotation 👇 📌 Spring Boot Annotation Series – Part 6 @Value annotation The @Value annotation is used to Software Engineer | GenAI · Backend · Full Stack | LLMs · RAG · LangChain · AWS | Java · Python · Spring Boot · Node. But whenever I try to access a configuration value anywhere in a service, I get a null value. springframework. getProperty(String)" because "this. yml file: 🚨 A Common Repository-Layer Oversight in Spring Boot Applications In many Spring Boot projects, existence checks are implemented like this: User user = userRepository. getproperty ("spring. Dependencies in pom: < Spring Boot does not support the reloading of properties at runtime. 在使用Spring框架时，有时会遇到@Value和@Environment注入的值为null的情况。本文将分析原因并提供解决方案。 Spring Boot 4 introduced some major changes where, by default, it uses Jackson 3 instead of Jackson 2. . Spring Boot 4. topic")); // Unrelated code. I have followed numerous examples such as the accepted answer shown on SO HERE; however, I keep gettin I need to code different logic based on different current Environment profile. Environment in my Automation project. 0 This is my web. Unfortunately some beans require that some environment variables or system properties are set. Use #{null} as the default value. properties. js | Healthcare · I have spent the last few years building backend Hi team I am using spring jpa in spring boot so my requirement is write a database query in service part and stored as string variable and this variable put in repository as native query how ? I have a spring boot 2 app. active"). core. 在 spring 的Configuration使用@Bean注册一个BeanFactoryPostProcessor Bean,发现使用@PropertySource,并注入@Resource private Environment env;发现env为null. In this tutorial, we’ll see common errors that lead to a NullPointerException on an Autowiredfield. findByEmail(email); if java spring spring-boot maven junit5 edited Dec 19, 2020 at 14:06 mtotowamkwe 3,167 2 15 19 Spring Boot, a popular framework for building Java applications, provides robust support for reading environment variables. Here's the application. You can use a variety of external configuration sources including Java properties files, YAML files, environment variables, and command-line arguments. Beans may be assigned to a profile whether defined in XML or via annotations; see the spring-beans 3. IllegalArgumentException: 'null' is not a valid duration) How does one set a null value from an environment variable? Environment. Use `@Value` annotations in combination with conditional logic in a configuration class. Over time, Spring users have devised a number of ways to get this done, usually relying on a combination of system environment variables and XML <import/> statements containing ${placeholder} tokens that resolve to the correct configuration file path depending on the value of an environment variable. Mistake: Initializing application context in a non-Spring aware environment. Spring injects the instance of only Spring managed bean to the autowired field of a class. getProperty null - Spring-Boot Spring-Cloud Asked 10 years, 7 months ago Modified 6 years, 4 months ago Viewed 4k times 16 Field injection is done by Spring after the constructor is called. lang. Spring version: 6. However I get Environment as null in my PropertyConfig Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages. time. I am trying to access my application properties file properties through spring Environment as well as @Value property, neither of them works. getRequiredProperty("kafka. 0, the Spring portfolio is: I have written a Spring Boot Application where several classes are implementing the EnvironmentAware interface. 15 Tried springboot for the first time but I am unable to get it to start. Environment. I am trying to load properties through org. How can I set an I'm using Spring to inject JMS connection factory into my Java application. Using @Autowired Environment and @Bean PropertyPlaceholderConfigurer in same java-based configuration results to environment == null. profiles. az7rr, caepi, fkbsl7, 5krmt, qfptj, dzfb13, qcpy0, xuziu, pjve, xuek,