Spring load file from resources . 4. Jun 16, 2015 · Load file from Spring Boot JAR If you would like to load a file from classpath in a Spring Boot JAR, then you have to use the resource. I took a look at my target/test-classes folder and my resource file wasn't in there (even though it was in my src/test/resources folder). Consequently, these resources can be accessed during runtime without the necessity of loading them from the file system, streamlining resource management within Spring Boot applications. This guide provides detailed steps to read resources efficiently in your unit tests. After getting access to the Resource, we can use all its methods to get the file details and file Aug 27, 2023 · Learn to read a file from the ‘/resources’ folder in a Spring boot application using ClassPathResource class, ResourceLoader interface or @Value annotation. Spring Boot provides several mechanisms to achieve this, making the process both efficient and straightforward. It doesn’t check if the file exists or not. Understanding these methods will help To load all files from a folder into a list of Resources in a Spring application, you can utilize Spring's ResourceLoader. If you try to use resource. S Tested with Spring 5. getFile("classpath:test. json"); Mar 21, 2021 · Spring Boot: Loading files from resources Load File from "resources" folder How to load files from "resources" folder in a maven project? Everyone knows how to do that. Below is a step-by-step breakdown of the process. You typically use the `ClassPathResource` class, which allows you to load files packaged within the application’s resources. ResourceUtils. The value attribute of @Value must be the path Oct 16, 2022 · Load a file from classpath in spring boot using ResourceUtils resolves the given resource location to a,java. The Resource folder is available in the Spring Project structure and we have provided a related image below for a better understanding of the concept. Mar 17, 2024 · Sometimes during unit testing, we might need to read a file from the classpath or pass a file to an object under test. I would like to keep my answer: it does not explain how to read a file (other answers do explain that), it answers why InputStream or resource was null. Aug 27, 2022 · When working with Spring Boot applications, we often need to place some data into a file and later read from it. src/main/resources/ For example, an image file in the src/main/resources/ folder May 5, 2025 · Spring’s Resource interface is used for abstracting access to low-level resources. xml. What Are Resource Files? Resource files in a Spring Boot application are files bundled within the application, usually located in the src/main/resources directory. File i. I have created a folder inside resource folders where I'll put Learn how to read a JSON file from the resources folder in a Spring Boot application. @Autowired ResourceLoader Dec 4, 2023 · Learn different ways to load external resources or files (text files, XML files, properties file, or image files) using Spring ResourceLoader interface. It is my most preferred way of doing it in any spring boot based application i am working . And this would easy with to load file with relative path. May 11, 2024 · How to map and handle static resources with Spring MVC - use the simple configuration, then the 3. Inject File As Resource Firstly, we'll inject a file as Resource using the @Value annotation. May 5, 2017 · I'm trying to access xsd in src/main/resources/XYZ/view folder where XYZ/view folder are created by me and folder has abc. Answer In Spring Boot, accessing resources from the classpath during unit testing is straightforward. In this tutorial, we’ll learn how to read the path of the /src/test/resources directory. After that, my test was able to find the file and the test worked. P. Oct 1, 2024 · In this blog post, we’ll dive deep into what resource files are, how to load them in Spring Boot, and share best practices with code examples to enhance your understanding. Jul 23, 2025 · In this article, we will discuss how to read file from the resources folder in Spring Boot. Similar answer is here. Step-by-step guide with code examples. 2. Jul 30, 2014 · This article will show you how to read a file from a `resources` folder, `getResourceAsStream` or `getResource`. In this blog post, we'll dive deep into what resource files are, how to load them in Spring Boot, and share best practices with code examples to enhance your understanding. io. getInputStream() method to retrieve it as a InputStream. File if the class path resource resides in the file system but not for classpath resources that reside in a jar and have not been expanded (by the servlet engine or whatever the environment is) to the filesystem. In contrast to the @PropertySource annotation used on @Configuration classes, you can declare the @TestPropertySource annotation on a test class to declare resource locations for test properties files or Oct 8, 2010 · I have a unit test that needs to work with XML file located in src/test/resources/abc. Maven Dependencies Oct 31, 2024 · Learn how to access and load resource files in Spring Boot using ResourceLoader, @Value, Tagged with spring, springboot. I ran mvn clean install and then rechecked my target/test-classes folder and the resource file was now there. Examples of external resources are text files, XML files, properties files, and image files. Jul 16, 2018 · I have to load file from outside of my classpath. This Resource implementation supports resolution as a java. These resources reside primarily in the src/main 8 Anything from test/resources is copied to target/test-classes just before the test phase. In the end, the approaches detailed here will help us when reading a file from the Maven resources folder or accessing a file from the file system. This approach allows you to dynamically access files at runtime without hardcoding their paths. When I try to access the xsd every ti Apr 15, 2017 · I just ran into this. to a file in the file system. Learn how to access files from the classpath in a Spring application with this detailed tutorial. If you start a Spring Configuration in your test classes, there is a binding for classpath resources that allows you to inject them like this: @Value("classpath:path/to/file") Resource resourceFile; Sep 2, 2023 · 💻📄🍃 Reading Files from the Resources Folder in Spring Boot: A Guide 🌟 Are you using Spring Boot and struggling to read a file from the resources folder? 😫 Aug 31, 2023 · Use @Value and ClassPathResource in Spring to load configuration values and files from the classpath without hardcoding paths or writing extra logic. Step-by-step examples and expert insights included. 1. txt is in resources directory, normally this would be copied to class-path by build process (tool like Maven, Gradle). Learn how to access and load resource files in Spring Boot using ResourceLoader, @Value, and ResourceUtils Mar 31, 2010 · Spring’s resource loader provides a very generic getResource () method to get the resources like (text file, media file, image file…) from file system , classpath or URL. I'm using Maven. mvn clean package So the files you added to resources folder will get into maven build and become available to the application. For example, in the file system, classpath, or URL. Jun 20, 2024 · Learn how to inject the contents of a resource file into our beans as a String, with Spring's Resource class making this very easy. 1 more flexible one and finally the new 4. Aug 29, 2019 · In this tutorial, we look at how to implement resources in Spring applications by using the ResourceLoader and Resource interfaces in Java. Overview In this tutorial, we're going to look at how we can access files as Resources using Spring. So you can't load resources like this: In this tutorial, we will explore how to efficiently load resources such as text files, configuration files, or properties into your Spring application as strings. 1. Oct 15, 2017 · I want to load a html file located in: to use in standalone spring boot jar application. We usually put these files into the resources The Spring Framework has first-class support for the notion of an environment with a hierarchy of property sources, and you can configure integration tests with test-specific property sources. We might also have a file in src/test/resources with data for stubs that could be used by libraries like WireMock. Nov 5, 2019 · 46 While @Deadpool has provided the answer, I would like to add that when the artifact of spring boot is created there is no such src/main/ folder anymore (you can open the spring boot artifact and make sure by yourself). Apr 13, 2019 · Spring – Read file from resources folder April 13, 2019 by mkyong In Spring, we can use ClassPathResource or ResourceLoader to get files from classpath easily. Spring Boot offers a robust and flexible approach to handling resources, abstracting away the complexities of file systems, classpath resources, or even files bundled within a JAR. What is the easiest way just to get the content of the file into String? Jun 16, 2023 · I have a Spring Boot project with Java 8. Sep 15, 2015 · As file - file. Those copied resources will be available on the classpath. Sep 9, 2024 · Spring Boot: How to Read a File from Resources Introduction Reading a file from the resources folder in a Spring Boot application is a common requirement, especially for loading configurations, test files, or other static resources at runtime. These resources may be present at different locations. e. The location depends of env properties: in dev properties I want to load file from resources folder in prod properties I want to load file from pat In Spring Boot applications, resource files are essential for managing various application data, such as configuration files, templates, and static resources. It is common practice for unit testing in the Spring JUnit test to load files and their content to make more robust test cases. Nov 21, 2023 · We will discuss the following methods: 1. Mar 26, 2025 · Learn how to easily open and read a file on the classpath using Spring's Resource API Jun 7, 2017 · This approach uses the ClassLoader to reliably load the resource file, ensuring it works properly in all environments, including after the application has been compiled and packaged into a JAR file. getFile() you will receive an error, because Spring tries to access a file system path, but it can not access a path in your JAR. May 27, 2019 · Introduction: Working With Resources In Spring via ResourceLoader Frequently, we need to read external resources into our Spring application. Something like Mar 3, 2021 · In this short tutorial we will show you how to read the files from the /src/test/resources directory path. So it seems that your resources aren't Nov 2, 2024 · Resource files in Spring Boot serve as a way to access externalized data and static files, whether configuration files, images, or other assets. Sep 14, 2025 · In this post, we’ll explore the art of loading and reading resource files in a Spring Boot application. Dec 24, 2012 · How can I load a Spring resource contents and use it to set a bean property or pass it as an argument constructor? The resource contains free text. 1 resource resolvers. This approach leads to FileSystemNotFoundException new InputStreamReader( getClass(). xsd which I need for xml validation. RELEASE 1. My project has a requirement to add certificates to Java Keystore due to some peculiarities. Using Spring’s ResourceLoader This method uses the Resource interface and will lazily load the resource file for use. In a Spring Boot project, files within the src/main/resources folder are automatically included in the final packaged application. bcpnq k5y jaz j3h ql7 mdqv3 bwgar ozedk7 r1lj dzt