Spring @RequestBody Explained
In the Spring framework, the @RequestBody annotation is used to bind the HTTP request body to the method’s parameters.
Its purpose is to bind data from the HTTP request body to the method’s parameters, allowing developers to easily access the data in the request body. Typically, the data in an HTTP request is sent in JSON or XML format. By using the @RequestBody annotation, the Spring framework can convert this data into Java objects, making it easier to handle in the method.
For instance, if a controller method needs to receive a JSON-formatted object, the @RequestBody annotation can be used on the method’s parameter to access the data in the request body. The Spring framework will automatically convert the JSON data in the request body into the corresponding Java object, and pass it as a method parameter to the controller method.
It is important to note that when using the @RequestBody annotation, you need to ensure that the data in the request body matches the type of the method parameter, otherwise it may lead to conversion failure. In addition, in order to correctly parse the data in the request body, you also need to configure the corresponding message converter in the configuration file.