How to store files uploaded from client machine to jboss standalone directory? - spring-mvc

Question

I have requirement to store files uploaded (using spring mvc) from client machine to jboss standalone directory .Give step by step solution

Answer 1

I would give the community project called Spring Content a try. This project makes it very easy to handle files by injecting the service and controller implementations for you (so that you don't need to write them yourself).
Adding it would look something like this:
pom.xml (assuming maven. Spring boot starters also available)
<!-- Java API -->
<!-- just change this depdendency if you want to store somewhere else -->
<dependency>
<groupId>com.github.paulcwarren</groupId>
<artifactId>spring-content-fs</artifactId>
<version>0.8.0</version>
</dependency>
<!-- REST API -->
<dependency>
<groupId>com.github.paulcwarren</groupId>
<artifactId>spring-content-rest</artifactId>
<version>0.8.0</version>
</dependency>
StoreConfig.java
#Configuration
#EnableFilesystemStores
#Import(RestConfiguration.class)
public class StoreConfig {
#Bean
FileSystemResourceLoader fileSystemResourceLoader() throws IOException {
return new FileSystemResourceLoader(new File("/path/to/uploaded/files").getAbsolutePath());
}
}
FileStore.java
#StoreRestResource(path="files")
public interface FileStore extends Store<String> {
}
And that's it. The FileStore is essentially a generic Spring ResourceLoader. The spring-content-fs dependency will cause Spring Content to inject a filesystem-based implementation. The spring-content-rest dependency will cause Spring Content to also inject an implementation if an #Controller that forwards HTTP requests onto the methods of the FileStore service.
So you will now have a fully functional (POST, PUT, GET, DELETE) REST-based file service at /files that will use your FileStore to retrieve (and store) files in /path/to/uploaded/files on your jboss server.
So:
curl --upload-file some-image.jpg /files/some-image.jpg
will upload some-image.jpg and store it in /path/to/uploaded/files on your server.
And:
curl /files/some-image.jpg
would retrieve it again.
HTH
The injected controller also supports video streaming too, in case that is useful.
With this you could also remove all of your controller and service code as it is no longer required. Plus, as Spring Content is an abstraction over storage, in future, you could also shift to any of the other storage mediums supported by Spring Content; S3 for example.