SpringBoot 解决VUE跨域问题

比眉伴天荒 2023-10-10 11:51 49阅读 0赞

问题产生情况描述:今天使用VUE 调用SpringBoot 后台服务接口，提示跨域，错误截图如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70][]

我参考网上解决Vue + SpringBoot 跨域代码，源码如下：

package com.zzg.configuration;
    
    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;
    
    /**
     * SpringBoot CROS跨域配置对象
     * @author Administrator
     *
     */
    @Configuration
    public class GlobalCorsConfig {
    	 @Bean
    	    public CorsFilter corsFilter() {
    	        //1.添加CORS配置信息
    	        CorsConfiguration config = new CorsConfiguration();
    	          //放行哪些原始域
    	          config.addAllowedOrigin("*");
    	          //是否发送Cookie信息
    	          config.setAllowCredentials(true);
    	          //放行哪些原始域(请求方式)
    	          config.addAllowedMethod("*");
    	          //放行哪些原始域(头部信息)
    	          config.addAllowedHeader("*");
    	          // 暴露头部信息
    	          config.addExposedHeader("*");
    	        
    	        //2.添加映射路径
    	        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();
    	        configSource.registerCorsConfiguration("/**", config);
    
    	        //3.返回新的CorsFilter.
    	        return new CorsFilter(configSource);
    	    }
    }

SpringBoot 重新启动，但VUE 访问SpringBoot服务接口时，提示如下错误信息：

Caused by: java.lang.IllegalArgumentException: '*' is not a valid exposed header value
    	at org.springframework.web.cors.CorsConfiguration.addExposedHeader(CorsConfiguration.java:282)
    	at com.gz.tzreport.config.GlobalCorsConfig.corsFilter(GlobalCorsConfig.java:25)
    	at com.zzg.configuration.GlobalCorsConfig$$EnhancerBySpringCGLIB$$1f6ff0f1.CGLIB$corsFilter$0(<generated>)
    	at com.zzg.configuration.GlobalCorsConfig$$EnhancerBySpringCGLIB$$1f6ff0f1$$FastClassBySpringCGLIB$$d3e777bb

造成错误的原因：因为跨域访问默认不能获取全部头部信息，需要在addExposedHeader把各个具体的一些头部信息都添加进去而不能用\*号来代替。

修改后的代码:

package com.zzg.configuration;
    
    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;
    
    /**
     * SpringBoot CROS跨域配置对象
     * @author Administrator
     *
     */
    @Configuration
    public class GlobalCorsConfig {
    	 @Bean
    	    public CorsFilter corsFilter() {
    	        //1.添加CORS配置信息
    	        CorsConfiguration config = new CorsConfiguration();
    	          //放行哪些原始域
    	          config.addAllowedOrigin("*");
    	          //是否发送Cookie信息
    	          config.setAllowCredentials(true);
    	          //放行哪些原始域(请求方式)
    	          config.addAllowedMethod("*");
    	          //放行哪些原始域(头部信息)
    	          config.addAllowedHeader("*");
    	          //暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
    	          // config.addExposedHeader("*");
    	          
    	          config.addExposedHeader("Content-Type");
    	          config.addExposedHeader( "X-Requested-With");
    	          config.addExposedHeader("accept");
    	          config.addExposedHeader("Origin");
    	          config.addExposedHeader( "Access-Control-Request-Method");
    	          config.addExposedHeader("Access-Control-Request-Headers");
    
    
    	        //2.添加映射路径
    	        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();
    	        configSource.registerCorsConfiguration("/**", config);
    
    	        //3.返回新的CorsFilter.
    	        return new CorsFilter(configSource);
    	    }
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20201123001231547.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n,size_16,color_FFFFFF,t_70