springboot项目配置请求跨域

新建文件MyWebMvcConfigurer.java文件（名称自定义）

package com.example.server_assess;

import io.micrometer.common.util.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class MyWebMvcConfig implements WebMvcConfigurer {

    //构造函数注入  
    private MyInterceptor myInterceptor;
    public MyWebMvcConfig(MyInterceptor myInterceptor) {  
        this.myInterceptor = myInterceptor;  
    }  

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")           // 所有接口
                    .allowCredentials(true)              // 是否发送 Cookie
                    .allowedOriginPatterns("*")       // 支持域
                    .allowedMethods("GET", "POST")       // 支持方法
                    .allowedHeaders("*")
                    .exposedHeaders("*");
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(myInterceptor)
                .addPathPatterns("/**") // 拦截所有请求
                .excludePathPatterns("/public/**"); // 可选：排除某些路径
    }
}