How to Upload Files and JSON Data with Postman in a Spring MVC Application?

Uploading File and JSON Data Using Postman

In Spring MVC applications, file uploads are commonly handled using MultipartFile objects. However, if you need to upload both a file and JSON data, you may encounter some challenges.

Consider the following Spring controller method:

@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)
public ResponseEntity<GenericResponseVO<? extends IServiceVO>> uploadFileHandler(
  @RequestParam("name") String name,
  @RequestParam("file") MultipartFile file,
  HttpServletRequest request,
  HttpServletResponse response) {
  // Code for file upload logic...
}

To upload a file and JSON data using Postman, follow these steps:

1. Set up the POST Request

In Postman, create a new POST request to the endpoint /uploadFile.

2. Send the Session ID

To include the session ID, set the Cookie header in Postman. This can typically be found in the browser's developer tools under the "Network" tab for the request you're replicating.

3. Prepare the File Upload

Under the "Body" tab, select the "form-data" type. Then, create a parameter with the name "file". Click on the "Select Files" button that appears next to the parameter value field to choose the file to upload.

4. Add JSON Data

For the JSON data, create additional parameters under the "Body" tab. Set the parameter type to "text" and enter the parameter name and value.

5. Submit the Request

Hit the "Send" button to submit the request. Postman will send the file and JSON data to the server as a multipart/form-data request.

6. Handle the Request

In the Spring controller method, the MultipartFile parameter (file) will contain the file data. The other parameters (such as name and any JSON data parameters) can be accessed and processed as needed.

The above is the detailed content of How to Upload Files and JSON Data with Postman in a Spring MVC Application?. For more information, please follow other related articles on the PHP Chinese website!