CORS策略错误-spotify api与Spring boot React

Question

我正在尝试使用Spring Boot和React编写带有spotify api的简单应用程序。在spring boot site中，我有一个很好的工作控制器：

@RestController
@CrossOrigin()
public class SpotifyTopArtistClient {


    @GetMapping("/artist")
    public SpotifyArtist getTopArtist(OAuth2Authentication details){
        String jwt = ((OAuth2AuthenticationDetails)details.getDetails()).getTokenValue();

        RestTemplate restTemplate = new RestTemplate();
        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.add("Authorization","Bearer "+jwt);
        HttpEntity httpEntity = new HttpEntity(httpHeaders);

        ResponseEntity<SpotifyArtist> 
        exchange=restTemplate.exchange("https://api.spotify.com/v1/me/top/artists? 
        time_range=medium_term&limit=1&offset=0", HttpMethod.GET,httpEntity,SpotifyArtist.class);


        return exchange.getBody();
    }

}

在使用main方法的课堂上，我有一个bean：

 @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowedOrigins("http://localhost:3000")
                        .allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD", "PATCH", "OPTIONS")
                        .allowCredentials(true);
            }
        };
    }

还有我的安全课：

@Configuration
@EnableOAuth2Sso
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests().antMatchers("/test").authenticated();
        http.authorizeRequests().antMatchers("/artist").authenticated();
        http.authorizeRequests().antMatchers("/login").authenticated();
        http.authorizeRequests().antMatchers("/login/*").authenticated();
        http.cors().and().csrf().disable();
    }
}

当我测试endpoint时http://localhost:8080/artist在浏览器和邮递员中，它的工作方式和我预期的一样。

在反应方面，我有代码：

  componentDidMount(){

    fetch('http://localhost:8080/artist')
    .then(response => response.json())
    .then(data=>{
      console.log(data)
    })
  }

当我试图运行这个程序时，我看到策略CORS错误：

获取的权限'https://accounts.spotify.com/authorize?client_id=8c8db951b0614847b5faf36b300fcb07

为什么SpotifyTopartistClient类之上的附加符号CrossOrigin不起作用？也许有人对Spotify api有更好的体验，可以帮助我？请

Answer 1

尝试以下操作：

@RestController
public class SpotifyTopArtistClient {
  (...)
}

现在更新WebMVCConfigure：

@Bean
public WebMvcConfigurer corsConfigurer() {
   return new WebMvcConfigurer() {
       @Override
       public void addCorsMappings(CorsRegistry registry) {
           registry.addMapping("/**")
                   .allowedOrigins("http://localhost:3000")
                   .allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD", "PATCH", "OPTIONS")
                   .allowCredentials(true);
       }
   };
}