[FIXED] How to open port 80 (HTTP) and 433 (HTTPS) in Java spring boot?

Issue

I want to open port 80 for http and port 433 for https. The port 80 should be redirected to 433. I set the server port in application.properties to port 80:

server.port=80

And to redirect I followed the official spring documentation and created this small class:

public class HTTPSRedirector {

    @Bean
    SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
        http.redirectToHttps();
        return http.build();
    }
}

But now the server times out and when I try using curl with the following command:

curl -v http://www.example.com/

I get a Bad request response because SSL/TLS is enabled. If I try to ping / contact the https port like this:

curl -v https://www.example.com/

then I get the message that the port is not opened and the connection was refused. How can I open both ports 80 and 433 in my Java spring project?

Solution

This is the way how I finally fixed it:

I used the bean listed in my question. This bean redirects all http requests to https.

ADDITIONALLY to that I set the server port to:

server.port=443

which is the default port for https. With these two changes the server works fine and everything is https.

Answered By - F_Schmidt