Upload large binary file to using Java Spring RestTemplate

Question

I have a servlet which is able to receive binary data [files].

I would like to use Spring's RestTemplate() to upload a large binary file to the servlet. However its not possible to load the binary file entirely into memory.

So far my attempts have resulted in OutOfMemory errors, indicating the methods have been attempting to load the entire file into memory.

How can I stream this binary data to the servlet? Preferable in Spring or otherwise in Java.

Hylton Peimer · Accepted Answer · 2012-12-07 06:45:05Z

15

Found the answer:

https://jira.springsource.org/browse/SPR-7909



SimpleClientHttpRequestFactory requestFactory = new SimpleClientHttpRequestFactory();
requestFactory.setBufferRequestBody(false);
RestTemplate rest = new RestTemplate(requestFactory);

This prevents loading the entire request into memory.

answered Dec 7, 2012 at 6:45

Hylton Peimer

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2 Comments

Doron Gold Over a year ago

Notice that this is fixed as of Spring version 3.1. So this problem should no longer arise if you are using Spring version >= 3.1. Otherwise, the code snippet above should solve the problem.

taynguyen Over a year ago

@Doron : I use Spring 3.2.5 but I met the same issue, i'm not sure that It was fixed.

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