springboot+html+ajax+mybatis学生管理页面全栈

package com.student; 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; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; @Configuration public class CorsConfig { @Bean public WebMvcConfigurer corsConfigurer() { return new WebMvcConfigurerAdapter() { @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") // 允许所有域名跨域访问 .allowedMethods("GET", "POST", "PUT", "DELETE") // 允许跨域请求的 HTTP 请求方法 .allowedHeaders("*"); // 允许跨域请求包含的头信息 } }; } }