1.网址

2.部署前端项目

3. 启动tomcat并测试

目录名就是路径

4.设置跨域配置实现前后端联调

package com.lv.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
@Configuration
public class CorsConfig {
    public CorsConfig(){
    }
    @Bean
    public CorsFilter corsFilter(){
       //1.添加cors配置信息
        CorsConfiguration corsConfiguration =new CorsConfiguration();
        corsConfiguration.addAllowedOrigin("http://localhost:8080");
        //设置是否发送cookie信息
        corsConfiguration.setAllowCredentials(true);
        //设置允许请求的方式
        corsConfiguration.addAllowedMethod("*");
        //设置允许的header
        corsConfiguration.addAllowedHeader("*");
        //2.为url添加映射信息，就是请求的url
        UrlBasedCorsConfigurationSource configurationSource=new UrlBasedCorsConfigurationSource();
        configurationSource.registerCorsConfiguration("/**",corsConfiguration);
        //3.返回重新定义好的UrlBasedCorsConfigurationSource
        return new CorsFilter(configurationSource);
    }
}