spring Cloud微服务跨域实现步骤

ly:
 cors:
  allowedOrigins:
   - http://manage.leyou.com
　 - http://xxx.xxx.com
# 允许哪些网址就继续加，不要写 *，否则cookie就无法使用了
  allowedCredentials: true    # 代表携带cookie
  allowedHeaders:
   - "*"
  allowedMethods:
   - GET
   - POST
   - DELETE
   - PUT
   - OPTIONS
   - HEAD
  maxAge: 360000
  filterPath: "/**"

@Data
@ConfigurationProperties(prefix = "ly.cors")
public class CORSProperties {
	private List<String> allowedOrigins;
	private Boolean allowedCredentials;
	private List<String> allowedMethods;
	private List<String> allowedHeaders;
	private long maxAge;
	private String filterPath;
}

@Configuration
@EnableConfigurationProperties(CORSProperties.class)
public class GlobalCORSConfig {
	@Autowired
	  private CORSProperties prop;
	/**
   * @Bean注解，将当前方法的返回值对象放入到IOC容器中
   * @return
   */
	@Bean
	  public CorsFilter corsFilter() {
		//1.添加CORS配置信息
		CorsConfiguration config = new CorsConfiguration();
		prop.getAllowedOrigins().forEach(config::addAllowedOrigin);
		//上面的写法和下面这个效果一样
		//    for (String allowedOrigin : prop.getAllowedOrigins()) {
		//      config.addAllowedOrigin(allowedOrigin);
		//    }
		//2) 是否发送Cookie信息
		config.setAllowCredentials(prop.getAllowedCredentials());
		//3) 允许的请求方式
		prop.getAllowedMethods().forEach(config::addAllowedMethod);
		// 4）允许的头信息
		prop.getAllowedHeaders().forEach(config::addAllowedHeader);
		// 5）有效期
		config.setMaxAge(prop.getMaxAge());
		//2.添加映射路径，我们拦截一切请求
		UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();
		configSource.registerCorsConfiguration(prop.getFilterPath(), config);
		//3.返回新的CORSFilter.
		return new CorsFilter(configSource);
	}
}