Hiroshi Haydn

On June 19, 1961, Kuwait became fully independent following an exchange of notes with the United Kingdom that terminated the Anglo-Kuwaiti Treaty of 1899 and therefore provided for Kuwaiti independence.

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In this article, we will use Java keytool to generate the self-signed SSL certificate. Other options is to get this certificate from a certification authority. For the production environment, always get your SSL certificate from these certifications authority (CA) also known as CA. To generate the SSL certificate, run the keytool -genkey command with the following parameters from the command prompt.

On running above command, it will ask for certain information. This is how the command line will look like:

Before moving ahead let’s understand above command:

We have the option to generate the following certificate while working on self signed SSL certificate:

To view the details of the keystore, use the keytool -list command:

You will have similar output on the console:

Create a new Spring Boot project to test our SSL certification. Spring Boott provides the option to enable HTTPS using the application.properties file. To configure SSL, use the server.ssl.*. properties in application.properties Read our article to

[pullquote align=”normal”]We’ll copy the file named “javadevjournal.p12″ into the “src/main/resources/keystore” directory. [/pullquote]

With above configuration, we have enabled HTTPS in Spring Boot application. Our application is ready to accept and server over HTTPS. Let’s create a simple REST controller to test our application.

To test our application, let’s create a simple REST controller.

To see our SSL configuration in action, build and deploy our Spring Boot application. You can also run your application through your IDE for testing purpose. Once your application is up and running Go to https://localhost:8443/ssl-test and you will get a browser warning since it is not issued by a trusted certificate authorities, add the exception to the browser and you will get a response from HTTPS server just created by you.

[pullquote align=”normal”]Configurations!! You are have enabled HTTPS in Spring Boot application [/pullquote]

This step becomes important if you qualify under following categories:

To handle this, add the below code to your configuration class:

If you are using Spring Boot < 2.0, above code will not work for you. For Spring Boot lower version, use the following code:

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