springboot2.0跨域配置

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　　springboot2.0跨域配置：

一、代码

    @Value("${cors.allowOrigin.url:anyValue}")
    private String corsAllowOriginUrl;
    @ConditionalOnProperty(name="cors.allowOrigin.enable", havingValue="true", matchIfMissing=false)
    @Bean
    public CorsFilter corsFilter() {
      final UrlBasedCorsConfigurationSource urlBasedCorsConfigurationSource = new UrlBasedCorsConfigurationSource();
      final CorsConfiguration corsConfiguration = new CorsConfiguration();
      corsConfiguration.setAllowCredentials(true);
      corsConfiguration.addAllowedOrigin("*");
      corsConfiguration.addAllowedHeader("*");
      corsConfiguration.addAllowedMethod("*");
      log.debug("启用跨域，允许域名：{}",corsAllowOriginUrl);
      urlBasedCorsConfigurationSource.registerCorsConfiguration(corsAllowOriginUrl, corsConfiguration);
      return new CorsFilter(urlBasedCorsConfigurationSource);
    }

二、application.properties
　　可以通过参数cors.allowOrigin.enable，控制是否允许跨域。

cors.allowOrigin.url=https://servicewechat.com
cors.allowOrigin.enable=false