Springs RestTemplate default connection pool

Question

Just wondering if RestTemplate out of the box uses connection pooling or does it simply establish a new connection each time ?

Answer 1

By default RestTemplate creates new Httpconnection every time and closes the connection once done.

If you need to have a connection pooling under rest template then you may use different implementation of the ClientHttpRequestFactory that pools the connections.

new RestTemplate(new HttpComponentsClientHttpRequestFactory())