How to Upload File Using Spring Boot and REST

How to Upload File Using SpringBoot and REST:-

In this example, we are going to check how to Upload File Using Spring Boot and REST.We are going to use Spring MultipartFile  to upload file using Spring Boot and REST.

Technologies Used:-

  • Spring Boot 2.0
  • Maven 3.0
  • Java 1.8

Project Structure:-

Spring Boot Rest File Upload

Create File Upload Controller:-

We are going to upload a single file and upload it using  MultipartFile and return the name of the uploaded file. Let’s write a request mapping and write a basic controller.This is a sample controller and we will be writing logic later in the section.

We are configuring endpoints as /upload and /upload/{imageId} . We written methods to return random string as well as the file format as we are going to need those while saving file.

Upload Logic:-

getTargetFile()creates a file object using UPLOAD_DIR, filename, and file extension.We are using MultipartFile.getBytes()to save the target file and return target file path in response.

Testing Code:-



 

 

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