update

.config/Code/User/History/-2754a774/8tPk.java

@@ -0,0 +1,45 @@
+package com.rutils;
+
+import java.io.InputStream;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.security.KeyStore;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManagerFactory;
+
+
+public class Main{
+    public static void main(String[] args){
+        
+        try{
+            CertificateFactory cf = CertificateFactory.getInstance("X.509");
+            InputStream certInputStream = Main.class.getResourceAsStream("/mycertificate.crt");
+            X509Certificate caCert = (X509Certificate)cf.generateCertificate(certInputStream);
+            
+            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
+            keyStore.load(null, null);
+            keyStore.setCertificateEntry("mycertificate", caCert);
+
+            TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+            tmf.init(keyStore);
+
+            SSLContext context = SSLContext.getInstance("TLS");
+            context.init(null, tmf.getTrustManagers(), null);
+
+            HttpClient client = HttpClient.newBuilder().sslContext(context).build();
+
+            HttpRequest request = HttpRequest.newBuilder().uri(new URI("https://localhost:8000/greet")).build();
+            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+            System.out.println(response.body());
+        }
+        catch(Exception e){
+            e.printStackTrace();
+        }
+        
+    }
+}