五分钟带你玩转spring cloud alibaba（十）spring cloud ouath2 +getway跨域特殊配置

spring:
  cloud:
    gateway:
      globalcors:
        add-to-simple-url-handler-mapping: true
        corsConfigurations:
          '[/**]':
            # 支持跨域访问的来源 也就是前台地址 可以配置多个 方法如下
            allowedOrigins:
              - "http://192.168.xx.xx:8080"
              - "http://192.168.xx.xx:8080"
            # 切记 allowCredentials 配置 为true时，allowedOrigins不能为 *
            allowCredentials: true
            maxAge: 86400
            # 支持的方法 * 代表所有
            allowedMethods: "*"
            allowedHeaders: "*"
            exposedHeaders: "setToken"
      routes:
        # 路由标识（id：标识，具有唯一性）   截取请求
        - id: auth
          # 目标服务地址（uri：地址，请求转发后的地址）
          uri: lb://auth
          # 路由条件（predicates：断言，匹配 HTTP 请求内容）
          predicates:
            ## 转发地址格式为 uri/archive，/str 部分会被下面的过滤器给截取掉
            - Path=/auth/**

import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.cloud.gateway.config.GlobalCorsProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.web.cors.reactive.CorsWebFilter;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;
import org.springframework.web.util.pattern.PathPatternParser;
@Configuration
@EnableConfigurationProperties(GlobalCorsProperties.class)
public class GatewayConfig {
    /**
     * 配置全局解决cors跨域问题
     *
     * @return
     */
    @Order(Ordered.HIGHEST_PRECEDENCE)
    @RefreshScope
    @Bean
    public CorsWebFilter corsWebFilter(GlobalCorsProperties globalCorsProperties){
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(new PathPatternParser());
        globalCorsProperties.getCorsConfigurations().forEach((k,v) -> source.registerCorsConfiguration(k, v));
        return new CorsWebFilter(source);
    }
}