详解SpringBoot中RestTemplate的几种实现

@Configuration
public class RestConfig {

  @Bean
  public RestTemplate restTemplate(){
    RestTemplate restTemplate = new RestTemplate();
    return restTemplate;
  }

  @Bean("urlConnection")
  public RestTemplate urlConnectionRestTemplate(){
    RestTemplate restTemplate = new RestTemplate(new SimpleClientHttpRequestFactory());
    return restTemplate;
  }

  @Bean("httpClient")
  public RestTemplate httpClientRestTemplate(){
    RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory());
    return restTemplate;
  }

  @Bean("OKHttp3")
  public RestTemplate OKHttp3RestTemplate(){
    RestTemplate restTemplate = new RestTemplate(new OkHttp3ClientHttpRequestFactory());
    return restTemplate;
  }
}