@CrossOrigin not working for spring-boot-starter-web 2.5.2

Question

I have Spring Boot rest controller which exposes certain APIs which I want to consume in Angular 12. On the controller I have added @CrossOrigin, but spring-boot does not seem to pick it up because even after adding the annotation I am getting the Cors policy issue.

@CrossOrigin(origins = "*")
@RestController
@Scope(WebApplicationContext.SCOPE_REQUEST)
@RequestMapping("api/rest")
public class MyController {

cors error

Answer 1

I think you've enabled the cross-origin for the particular controller. Either you can enable the same by adding the @CrossOrigin(origins = "*") on other controllers or you can configured the cross-origin globally by creating the bean as following

@Bean
public WebMvcConfigurer corsConfigurer() {
    return new WebMvcConfigurer() {
        @Override
        public void addCorsMappings(CorsRegistry registry) {
            registry.addMapping("/**").allowedOrigins("*");
        }
    };
}

Answer 2

Have you tried adding it as @CrossOrigin(origins = "http://localhost:<your_port>")

Where your_port is the port your angular app is using?

Answer 3

尝试以下代码：

@CrossOrigin(allowCredentials = "true")

Answer 4

Add a CORS-Origin extension to your browser if you are sending request from the browser. If @CrossOrigin doesn't work then thats your problem. There you go:

https://chrome.google.com/webstore/detail/cors-unblock/lfhmikememgdcahcdlaciloancbhjino