Spring:如何从RestTempalte获取rootUri

restTemplate.getUriTemplateHandler()。展开(“/”)

@Configuration
public class RestTemplateConfig {

   @Bean
   public RestTemplate restTemplate(RestTemplateBuilder builder,
                                    @Value("${endpoint-url}") String endpointUrl) {
     return builder
       .rootUri(endpointUrl)
       .messageConverters(new MappingJackson2HttpMessageConverter())
       .build();
   }
}

// Make a POST call to ${endpoint-url}/foobar

String uri = "/foobar"; // The leading "/" is important!
restTemplate.postForLocation(uri, request);

听起来你想用 RestTemplate 传递的值 ${endpoint-url}

• endpointUrl 还有你的 restTemplate 端点URL restTemplate .例如:

  @Component
  public class RestTemplateProvider {
  
      @Value("${endpoint-url}")
      private String endpointUrl;
  
      private final RestTemplate restTemplate;
  
      @Autowired
      public RestTemplateProvider(RestTemplateBuilder restTemplateBuilder) {
          this.restTemplate = restTemplateBuilder.rootUri(endpointUrl)
                  .messageConverters(new MappingJackson2HttpMessageConverter())
                  .build();
      }
  
      public RestTemplate provide() {
          return restTemplate;
      }
  
      public String getEndpointUrl() {
          return endpointUrl;
      }
  }
  

• 注射 @Value("${endpoint-url}") private String endpointUrl;