跨域问题的解决

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;


@Component
public class WebMvcConfig implements WebMvcConfigurer {
    
    @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("*")
                //.allowedOriginPatterns("*")
                .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("*");
    }
}