java - How Spring Boot redirect http to https with HTTP 301? -


in spring boot project,i add https support,when curl -i http://127.0.0.1:80,i got http/1.1 302,how can redirect http 301. config,in code has comment maybe useful. can me?very thankful!

@configuration public class webconfig {     @bean     public embeddedservletcontainerfactory servletcontainerfactory() {         tomcatembeddedservletcontainerfactory factory =                 new tomcatembeddedservletcontainerfactory() {                     @override                     protected void postprocesscontext(context context) {                         securityconstraint securityconstraint = new securityconstraint();                         securityconstraint.setuserconstraint("confidential");                         securitycollection collection = new securitycollection();                         collection.addpattern("/*");                         securityconstraint.addcollection(collection);                         context.addconstraint(securityconstraint);                     }                 };         factory.addadditionaltomcatconnectors(createhttpconnector());         return factory;     }      private connector createhttpconnector() {         //org.apache.catalina.connector.connector,in source code saw method named createresponse(),         //this method return org.apache.catalina.connector.response,         //in response has method sendredirect(),there constant set httpstatus 302         connector connector = new connector("org.apache.coyote.http11.http11nioprotocol");         connector.setscheme("http");         connector.setsecure(false);         connector.setport(80);         connector.setredirectport(443);         return connector;     }      @bean     public embeddedservletcontainercustomizer containercustomizer() {         return container -> {             ssl ssl = new ssl();             ssl.setkeystore("classpath:***.jks");             ssl.setkeystorepassword("***");             container.setssl(ssl);             container.setport(443);         };     } } 


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