springboot项目中解决前后端跨域问题

在utils包下新建一个CORSConfig.java文件

以下是CORSConfig.java文件的内容

package com.whj.stumanagement.rj_stumanagement_back.utils;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @Description 跨域配置
 **/
@Configuration
public class CORSConfig {

    @Bean
    public WebMvcConfigurer corsConfigurer(){
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowedHeaders("*")
                        .allowedMethods("*")
                        .allowedOrigins("*");
            }
        };
    }
}