springboot跨域請求配置

方式一：

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();
        corsConfiguration.addAllowedOrigin("*"); // 允許任何域名使用
        corsConfiguration.addAllowedHeader("*"); // 允許任何頭
        corsConfiguration.addAllowedMethod("*"); //
 
 允許任何方法（post、get等）
        corsConfiguration.setAllowCredentials(true);
        return corsConfiguration;
    }
    
    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", buildConfig()); //
 
 對介面配置跨域設定
        return new CorsFilter(source);
    }
}

方式二：

import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration //加配置註解可以掃描到
public class WebConfig implements WebMvcConfigurer{
    
    //跨域請求配置
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        WebMvcConfigurer.super.addCorsMappings(registry);
        registry.addMapping("/**")// 對介面配置跨域設定
                .allowedHeaders("*")// 允許任何頭
                .allowedMethods("POST","GET")// 允許方法（post、get等）
                .allowedOrigins("*")// 允許任何域名使用
                .allowCredentials(true);
    }
    
}