Starting with Spring 5, the RestTemplate class is in maintenance mode. The non-blocking WebClient is provided by the Spring framework as a modern alternative to the RestTemplate. WebClient offers support for both synchronous and asynchronous HTTP requests and streaming scenarios. Therefore, RestTemplate will be marked as deprecated in a future version of the Spring Framework and will not contain any new functionalities.
RestTemplate is based on a thread-per-request model. Every request to RestTemplate blocks until the response is received. As a result, applications using RestTemplate will not scale well with an increasing number of concurrent users. You can refer to all the source code used in the article on Github. In a distributed system, many services can be involved in creating a response to a single request. In this article, I share a bit about my successes and failures as a creator of code, text, and coming up a SaaS product.
Spring Boot. Example Code This article is accompanied by a working code example on GitHub. What is Spring RestTemplate? Some Useful Methods of RestTemplate Before looking at the examples, it will be helpful to take a look at the important methods of the RestTemplate class. The names of most of the methods are based on a naming convention: the first part in the name indicates the HTTP method being invoked the second part in the name indicates returned element.
Return success or failure without response body return ResponseEntity. POST , request , String. PUT , request , Void. ClientHttpRequestFactory ; import org. Default error handler::org. DefaultResponseErrorHandler 30b7c GET , entity , Product. Recent Posts. Tracing with Spring Boot, OpenTelemetry, and Jaeger Tom Hombergs January 9, In a distributed system, many services can be involved in creating a response to a single request. Read more.
Learn more. Ask Question. Asked 2 years ago. Active 3 months ago. Viewed 2k times. I am getting the correct response when I try this using Postman. NoSuchMethodError: org. Improve this question. Peter Mortensen Nithin Nithin 4 4 silver badges 26 26 bronze badges. The syntax highlighting looks off. Is it? Add a comment. It generally does this unless you unless configured otherwise. I set up a simple project using the same code using the RestTemplate client and it worked no problem with the correct payload and Content-Type header.
However, when used in a larger project with other Spring components wired and configured, the XML converter is used. I'm not sure how to figure out why it's behaving that way. Add a comment. Active Oldest Votes. Improve this answer. Michiel Michiel 2, 1 1 gold badge 13 13 silver badges 20 20 bronze badges.
Is this because some JAXB classes are being found on the classpath? Doesn't it seem strange to "default" to using XML? I am using a library written by another team within the organization and don't readily have direct access to the RestTemplate being used. Is there some way to address this with some Spring configuration somewhere at a bit of a higher level?
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