Spring Cloud Gateway + oauth2 跨域配置实现

女爷i 2022-12-26 10:22 145阅读 0赞

## 版本说明 ##

**spring-cloud-starter-gateway : 2.2.5RELEASE**  
**spring-cloud-starter-oauth2 : 2.2.4RELEASE**  
**spring-security-oauth2 : 2.3.8RELEASE**

## nacos跨域配置 ##

spring:
      cloud:
        gateway:      
          globalcors:
            add-to-simple-url-handler-mapping: true 
            corsConfigurations:
              '[/**]': 
              	# 支持跨域访问的来源
                allowedOrigins: 
                  - "http://localhost:8080"
                # 切记 allowCredentials 配置 为true时，allowedOrigins不能为 * 
                allowCredentials: true
                # 浏览器跨域嗅探间隔 单位秒
                maxAge: 86400
                # 支持的方法 * 代表所有
                allowedMethods: "*"
                allowedHeaders: "*"
                exposedHeaders: "setToken"

网上搜了一堆，大多都是上面的这些，但是如果只进行这样的配置的话，根本不会生效，我这边的gateway是集成了oauth2进行鉴权的，最后在Spring Security官方文档上看到了这一段  
[https://docs.spring.io/spring-security/site/docs/current/reference/html5/\#cors][https_docs.spring.io_spring-security_site_docs_current_reference_html5_cors]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDYyMzczNg_size_16_color_FFFFFF_t_70]  
琢磨一番加参考其他博客之后。。。

## gateway添加跨域配置类 ##

**CorsConfig.java**

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 CorsConfig { 
    
        @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);
        }
    }

再次编译启动项目，测试一波后，跨域配置成功生效

[https_docs.spring.io_spring-security_site_docs_current_reference_html5_cors]: https://docs.spring.io/spring-security/site/docs/current/reference/html5/#cors
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDYyMzczNg_size_16_color_FFFFFF_t_70]: /images/20221120/380e9013f5be4493a656ea7162c472f8.png