waterElectricityService/LeyouCorsConfig.java

package com.happy.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 LeyouCorsConfig {
    @Bean
    public CorsFilter corsFilter() {
        //1.添加CORS配置信息
        CorsConfiguration config = new CorsConfiguration();
        //1) 允许的域（填前台域）,不要写*，否则cookie就无法使用了
        config.addAllowedOrigin("*");
        config.setAllowCredentials(true);  //2) 是否发送Cookie信息
        config.addAllowedMethod("*");   //3) 允许的请求方式
        config.addAllowedHeader("*");  // 4）允许的头信息
        //2.添加映射路径，我们拦截一切请求
        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();
        configSource.registerCorsConfiguration("/**", config);
        //3.返回新的CorsFilter.
        return new CorsFilter(configSource);
    }
}