[JavaScript知识库]解决跨域中 遇到的问题

解决跨域中 遇到的问题

@Configuration
public class CorsConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {

        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowCredentials(true)
                .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE","OPTIONS")
                .maxAge(3600);

    }
}

http://localhost:8081/book/findAll //后端访问地址
http://localhost:8080/book //前端访问地址

在刷新后端是报错

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.

经过一番查找 问题所在就是 .allowCredentials(true)。

把 **.allowCredentials(true)**删了就可以了