讓自己的網站支援HTTPS

獲取證書

用Java自帶的keytools工具生成證書

keytool -genkey -alias tomcat  -storetype PKCS12 -keyalg RSA -keysize 2048  -keystore keystore.p12 -validity 3650

引數說明

1.-storetype 指定金鑰倉庫型別
2.-keyalg 生證書的演算法名稱，RSA是一種非對稱加密演算法
3.-keysize 證書大小
4.-keystore 生成的證書檔案的儲存路徑
5.-validity 證書的有效期

Spring Boot啟用https

修改application.properties或者修改application.yml檔案

server.ssl.key-store=keystore.p12
server.ssl.key-store-password=111111
server.ssl.keyStoreType=PKCS12
server.ssl.keyAlias:tomcat

將HTTP請求轉到HTTPS請求

程式入口類新增Http轉換器

@Bean
public EmbeddedServletContainerFactory servletContainer() {
    TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory() {
        @Override
        protected void postProcessContext(Context context) {
            SecurityConstraint constraint = new SecurityConstraint();
            constraint.setUserConstraint("CONFIDENTIAL");
            SecurityCollection collection = new SecurityCollection();
            collection.addPattern("/*");
            constraint.addCollection(collection);
            context.addConstraint(constraint);
        }
    };
    tomcat.addAdditionalTomcatConnectors(httpConnector());
    return tomcat;
}

@Bean
public Connector httpConnector() {
    Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
    connector.setScheme("http");
    //Connector監聽的http的埠號
    connector.setPort(8080);
    connector.setSecure(false);
    //監聽到http的埠號後轉向到的https的埠號
    connector.setRedirectPort(8443);
    return connector;
}