vue项目中跨域问题的解决

跨域问题的解决（在后端进行解决）

1.CorsConfig.java

package com.jihu.config;

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;

@Configuration
public class CorsConfig implements WebMvcConfigurer {
    //方法一
//    @Override
//    public void addCorsMappings(CorsRegistry registry) {
//        registry.addMapping("/**")
//                .allowedOriginPatterns("*")
//                .allowedMethods("GET","HEAD","POST","PUT","DELETE","OPTIONS")
//                .allowCredentials(true)
//                .maxAge(3600)
//                .allowedHeaders("*");
//    }
    //方法二
    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowCredentials(false)
                        .allowedMethods("POST", "GET", "PUT", "OPTIONS", "DELETE")
                        .allowedOrigins("*");
            }
        };
    }
}