What is the method called when using RestTemplate?

RestTemplate is a template class provided by Spring for accessing REST services, offering a range of convenient methods for sending HTTP requests and handling responses.常见方法包括：

1. Use getForObject() to send a GET request and receive an object as the response.
2. Use getForEntity() to send a GET request and receive a ResponseEntity object as the response.
3. postForObject(): send a POST request and receive an object as the response.
4. postForEntity(): Send a POST request and return a ResponseEntity object as the response.
5. exchange(): Send an HTTP request and return a ResponseEntity object as a response, allowing for specifying the HTTP method, request body, and request headers.
6. delete(): sends a DELETE request and returns an object as response.