SpringBoot基于Spring Security的HTTP跳转HTTPS

简单说说

之所以采用Spring Security来做这件事，一是Spring Security可以根据不同的URL来进行判断是否需要跳转（不推荐），

二是不需要新建一个TomcatServletWebServerFactory Bean，新建这个Bean可能会导致SpringBoot关于Server的配置失效。

三是网上大部分流传的通过实现WebServerFactoryCustomizer来自定义跳转，在我的项目中一直没能生效。

代码也很简单

package com.github.codeactions.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.web.SecurityFilterChain;

/**
 * SecurityConfiguration
 *
 * @author hackyo
 * @since 2022/4/1
 */
@Configuration
@EnableWebSecurity
@EnableMethodSecurity
public class SecurityConfiguration {

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http.portMapper(portMapper -> portMapper.http(80).mapsTo(443))
                .requiresChannel(requiresChannel -> requiresChannel.anyRequest().requiresSecure());
        return http.build();
    }

}