1 import org.springframework.context.annotation.Bean;
 2 import org.springframework.context.annotation.Configuration;
 3 import org.springframework.web.cors.CorsConfiguration;
 4 import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
 5 import org.springframework.web.filter.CorsFilter;
 6
 7 /**
 8  * 跨域配置
 9  */
10 @Configuration
11 public class CorsConfig {
12   // 设置允许跨域的源
13   private static String[] originsVal = new String[]{
14       "127.0.0.1:8080",
15       "localhost:8080",
16       "google.com",
17       "mail.google.com"
18   };
19
20   /**
21    * 跨域过滤器
22    *
23    * @return
24    */
25   @Bean
26   public CorsFilter corsFilter() {
27     UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
28     CorsConfiguration corsConfiguration = new CorsConfiguration();
29     this.addAllowedOrigins(corsConfiguration);
30     corsConfiguration.addAllowedHeader("*");  //添加允许访问的头
31     corsConfiguration.addAllowedMethod("*");  //添加允许访问的方法
32     corsConfiguration.addAllowedOrigin("*");  //添加允许访问的源，这里的*已经包含了originsVal数组里的源信息
33     source.registerCorsConfiguration("/**", corsConfiguration);
34     return new CorsFilter(source);
35   }
36
37   private void addAllowedOrigins(CorsConfiguration corsConfiguration) {
38     for (String origin : originsVal) {
39       corsConfiguration.addAllowedOrigin("http://" + origin);
40       corsConfiguration.addAllowedOrigin("https://" + origin);
41     }
42   }
43 }