请求跨域问题

新建一个类CorsConfig 放到项目里，就ok了

package com.jeeplus.modules.fakeform;

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 {

private CorsConfiguration buildConfig() {
    CorsConfiguration corsConfiguration = new CorsConfiguration();

    // 可以自行筛选
    corsConfiguration.addAllowedOrigin("*");
    corsConfiguration.addAllowedHeader("*");
    corsConfiguration.addAllowedMethod("*");

    return corsConfiguration;
}

@Bean
public CorsFilter corsFilter() {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();

    source.registerCorsConfiguration("/**", buildConfig());

    return new CorsFilter(source);
}

}