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Connection to https site (server)

I have a java application and I want to establish a connection to some https site, how can I do this using URLConnection? Should I use the trust store when the certificate from this site was signed using a valid CA?

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Yes. URLConnection should work. For example,

        URL a = new URL("https://login.yahoo.com");
        conn = a.openConnection();
        InputStream is = conn.getInputStream();


The JRE comes with a default trust store with most CA certificates. As long as the certificate is signed by one of them, you don't need to do anything.

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