springboot跨域问题解决

package com.qif.xdqdm.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;

/**
 * @author
 * @date 2019年3月19日16:40:48
 */

@Configuration
public class CorsConfigFilter {
    private CorsConfiguration buildConfig() {
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        //允许任何域名
        corsConfiguration.addAllowedOrigin("*");
        //允许任何头
        corsConfiguration.addAllowedHeader("*");
        //允许任何方法
        corsConfiguration.addAllowedMethod("*");
        return corsConfiguration;
    }

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        //注册
        source.registerCorsConfiguration("/**", buildConfig());

        return new CorsFilter(source);
    }

}

package com.qif.xdqdm.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.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class MyConfig extends WebMvcConfigurerAdapter {

    //所有的WebMvcConfigurerAdapter组件都会一起起作用
    @Bean //将组件注册在容器  设置初始页面为index
    public WebMvcConfigurerAdapter webMvcConfigurerAdapter() {
        WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() {
            @Override
            public void addViewControllers(ViewControllerRegistry registry) {
                registry.addViewController("/").setViewName("index");
            }
        };
        return adapter;
    }

    //解决跨域
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }

}