tomcat重定向https请求变为http

问题描述：

用户通过https访问nginx代理的tomcat,tomcat重定向后变为http

解决方案

1、nginx配置

        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header X-Forwarded-Proto  $scheme;
        proxy_pass http://127.0.0.1:8080;
		#proxy_redirect http:// https://;

2、Spring Boot 配置（在启动类里面配置）

    @Bean
    public EmbeddedServletContainerFactory servletContainer(){
        TomcatEmbeddedServletContainerFactory factory = new TomcatEmbeddedServletContainerFactory();
        factory.setUriEncoding(Charset.forName("UTF-8"));
        RemoteIpValve value = new RemoteIpValve();
        value.setRemoteIpHeader("X-Forwarded-For");
        value.setProtocolHeader("X-Forwarded-Proto");
        value.setProtocolHeaderHttpsValue("https");
        factory.addEngineValves(value);
        return factory;
    }

若是war包，在tomcat的在server.xml的Engine模块下面配置多一个以下的Valve

<Valve  className="org.apache.catalina.valves.RemoteIpValve" 
        remoteIpHeader="X-Forwarded-For" 
        protocolHeader="X-Forwarded-Proto" 
        protocolHeaderHttpsValue="https"/>