SpringCloud如何使用GateWay网关前端请求跨域处理呢?

下文笔者讲述SpringCloud中使用GateWay处理跨域处理的相关简介说明,如下所示

我们只需编写一个CorsConfig配置
      即可使SpringCloud处理跨域的相关事项

例:SpringCloud设置跨域处理

增加配置类

CorsConfig.java
 
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.reactive.CorsWebFilter;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;
 
@Configuration
public class CorsConfig {

    @Bean
    public CorsWebFilter corsWebFilter(){
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();

        CorsConfiguration corsConfiguration = new CorsConfiguration();
        //1、配置跨域
        //允许哪些头进行跨域
        corsConfiguration.addAllowedHeader("*");
        //允许哪些请求方式进行跨域
        corsConfiguration.addAllowedMethod("*");
        //允许哪些请求来源进行跨域
        corsConfiguration.addAllowedOrigin("*");
        //是否允许携带cookie进行跨域，否则跨域请求会丢失cookie信息
        corsConfiguration.setAllowCredentials(true);

        source.registerCorsConfiguration("/**",corsConfiguration);

        return new CorsWebFilter(source);
    }
}