Annotation: @CrossOrigin Gateway Integration Httpclient Why is there a cross-domain problem Because of the browser's same-origin policy, cross-domains are created. For example, an asynchronous request is sent to two different sources, such as two d ... More >>

The commonly used methods for calling microservices to each other are HttpUrlConnection or classic network access framework HttpClient However, in the Spring project, using RestTemplate is clearly more convenient RestTemplate Introduction:RestTemplate is an HTTP request tool supported since Spring 3 ... More >>