renren开源里跨域出现access control Allow Origin的问题_人人开源中支持跨域访问-优快云博客

本文链接：https://blog.youkuaiyun.com/rod0320/article/details/114105058

博客提到人人开源的文件中已有一个跨域配置，若要重新搞一个跨域，需要将原有的跨域配置删掉或注释掉。

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人人开源的文件中已经有了一个跨域

自己重新搞一个跨域要把这个删掉or注释

package io.renren.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class CorsConfig implements WebMvcConfigurer {
//
//    @Override
//    public void addCorsMappings(CorsRegistry registry) {
//        registry.addMapping("/**")
//            .allowedHeaders("access control Allow Origin")
//            .allowedOrigins("http://localhost:8001")
//            .allowCredentials(true)
//            .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
//            .maxAge(3600);
//    }
}

重新搞一个跨域

package com.rod.bishe.bishegateway.config;

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 BisheCorsConfiguration {
    @Bean
    public CorsWebFilter corsWebFilter() {
        UrlBasedCorsConfigurationSource source =
            new UrlBasedCorsConfigurationSource();
        CorsConfiguration configuration = new CorsConfiguration();
        //配置跨域 Access-Control-Allow-Origin
        configuration.addAllowedHeader("*");
        //这里要写具体的跨域的前端url不要写*
        configuration.addAllowedOrigin("http://localhost:8001");
        configuration.addAllowedMethod("*");
        configuration.setAllowCredentials(true);
        source.registerCorsConfiguration("/**", configuration);
        return new CorsWebFilter(source);
    }
}