解决Java后台接口跨域，nginx跨域配置。

系统管理员 2023-06-27 03:49 17阅读 0赞

# 2种常用解决跨域方法： #

## 1、nginx配置 ##

在nginx.conf 配置的location 节点下加入如下配置信息:  
![在这里插入图片描述][20200103085333887.png]

add\_header Access-Control-Allow-Origin \*;  
add\_header Access-Control-Allow-Headers “Origin, X-Requested-With, Content-Type, Accept”;  
add\_header Access-Control-Allow-Methods “GET, POST, OPTIONS”;

## 2、springboot注解配置 ##

import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.cors.CorsConfiguration;
    import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
    import org.springframework.web.filter.CorsFilter;
    
    /** * 接口跨域统一配置 */
    @Configuration
    public class CorsConfig { 
    
        /** * 设置 - 限定访问源 * @return */
        private CorsConfiguration buildConfig() { 
            CorsConfiguration corsConfiguration = new CorsConfiguration();
            corsConfiguration.addAllowedOrigin("*"); // 1 设置访问源地址
            corsConfiguration.addAllowedHeader("*"); // 2 设置访问源请求头
            corsConfiguration.addAllowedMethod("*"); // 3 设置访问源请求方法
            return corsConfiguration;
        }
    
        /** * 设置接口地址 * @return */
        @Bean
        public CorsFilter corsFilter() { 
            UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
            source.registerCorsConfiguration("/**", buildConfig()); // 4 对接口配置跨域设置
            return new CorsFilter(source);
        }
    }

[20200103085333887.png]: https://img-blog.csdnimg.cn/20200103085333887.png