spingboot升级之后之前的访问页面和接口出现这样的错误：

java.lang.IllegalArgumentException: When allowCredentials is true, allowedOrigins cannot contain the special value "*"since that cannot be set on the "Access-Control-Allow-Origin" response header. To allow credentials to a set of origins, list them explicitly or consider using "allowedOriginPatterns" instead.

之前的版本是2.1.5.RELASE 跨域是这样设置的

@Configuration
public class AbsWebMvcConfigurerAdapter extends WebMvcConfigurationSupport {	@Override public void addCorsMappings(CorsRegistry registry) {// 添加映射路径 registry.addMapping("/**") // 是否发送Cookie .allowCredentials(true) //设置放行哪些原始域 SpringBoot2.4.4下低版本使用.allowedOrigins("*") .allowedOrigins("*") //放行哪些请求方式 .allowedMethods(new String[] { "GET", "POST", "PUT", "DELETE" }) //.allowedMethods("*") //或者放行全部 // 放行哪些原始请求头部信息 .allowedHeaders("*");}
}

升级到2.4.0之后的版本

@Configuration
public class AbsWebMvcConfigurerAdapter extends WebMvcConfigurationSupport {@Beanpublic CorsFilter corsFilter() {UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();CorsConfiguration config = new CorsConfiguration();// 是否允许请求带有验证信息config.setAllowCredentials(true);// 允许访问的客户端域名// (springboot2.4以上的加入这一段可解决 allowedOrigins cannot contain the special value// "*"问题)List<String> allowedOriginPatterns = new ArrayList<>();allowedOriginPatterns.add("*");config.setAllowedOriginPatterns(allowedOriginPatterns);// 设置访问源地址// config.addAllowedOrigin("*");config.addAllowedHeader("*");config.addAllowedMethod("*");source.registerCorsConfiguration("/**", config);return new CorsFilter(source);}
}

希望对你有所帮助