Spring前后端跨域请求设置代码实例

package com.helq3.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;

/**
 * 跨域全局配置
 */
@Configuration
public class CorsConfig {
  private CorsConfiguration buildConfig(){

    CorsConfiguration configuration = new CorsConfiguration();
    //设置属性
    //允许跨域请求的地址，*表示所有
    configuration.addAllowedOrigin("*");
    //配置跨域的请求头
    configuration.addAllowedHeader("*");
    //配置跨域的请求方法
    configuration.addAllowedMethod("*");
    //表示跨域请求的时候使用的是否是同一个session
    configuration.setAllowCredentials(true);
    return configuration;
  }
  @Bean
  public CorsFilter corsFilter(){
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**",buildConfig());
    return new CorsFilter(source);
  }
}