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    小黄鸡的博客:五分钟带你玩转spring cloud alibaba(九)spring

    作者:[db:作者] 时间:2021-08-15 19:24

    spring cloud ouath2 +getway跨域是有特别的配置的(与普通跨域不同)

    1.bootstrap.yml

    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/**

    GatewayConfig

    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);
        }
    }

    cs