Question: I'm newbie with Spring Boot.

I'm trying to make a https call to a service, I have a Privake key to secure connection.

I hit: 

```
http://localhost:8081/points/12345/search

```

I tried with https:// but I get from Postman:

```
Could not get any response
There was an error connecting to https://localhost:8081/points/12345/search.

```

From the moment I wrote 

```
server.ssl.key-store=classpath:KeyStore.jks
server.ssl.key-store-password=test

```

in `application.properties`, I get the error message: 

Bad Request - This combination of host and port requires TLS

I have deleted all my code in my controller, I just let the endpoint so that I can invoke it.

```
@RestController
@SpringBootApplication
public class MainApplication {
    @RequestMapping(value = "/points/{point}/search", method = RequestMethod.GET)
    public PointsType getPoint(@PathVariable(value = "point") String point) {
        System.out.println("hi"); // Never printed
        return null;
    }
    public static void main(String[] args) {
        SpringApplication.run(MainApplication.class, args);
    }
}

```

Here is the file application.properties:

```
spring.application.name=sge
server.port=8081
server.ssl.key-store=classpath:KeyStore.jks
server.ssl.key-store-password=test
server.ssl.key-alias=homologation-staging
server.ssl.trust-store=classpath:TrustStore.jks
server.ssl.trust-store-password=test
server.ssl.client-auth=need
security.require-ssl=true
server.tomcat.remote_ip_header=x-forwarded-for
server.tomcat.protocol_header=x-forwarded-proto

```

What should I do ?

Answer: 
I got this message because I was using wrong certificate.

I misunderstood Client certificate and Server certificate. 

In my case, I installed my certificate on the server, for my domain, but what I needed to do instead is to use it to make the request, as a client certificate.

you can check it how to do it here.

[Client Certificate Authentication with Spring Boot](https://stackoverflow.com/questions/51177317/client-certificate-authentication-with-spring-boot)

So this message is basically saying: "Hey, your SSL request is not OK", I can't find the cert file, or your cert file is not the good one, as @SerdarAtalay says, it can also significate that you didn't use `https://` prefix, etc.

Hope it helps!
We can fix this by either of below listed solutions.

1. Use HTTPS instead of HTTP
2. Disable TLS encryption from POSTMAN setting and use HTTP
3. Check application properties server.ssl.enabled= true- HTTPS , false-HTTP
4. Add correct authorization credential like username and password in POSTMAN
[enter image description here](https://i.stack.imgur.com/sejdB.png)

[[1]: https://i.stack.imgur.com/vGOj9.png](https://i.stack.imgur.com/sejdB.png)[enter image description here](https://i.stack.imgur.com/pPvKC.png)