updateClientServer

Server/src/main/java/hello/Application.java

@@ -9,4 +9,5 @@ public class Application {
     public static void main(String[] args) {
         SpringApplication.run(Application.class, args);
     }
-}
+}
+

Server/src/main/java/hello/Greeting.java

@@ -2,19 +2,19 @@ package hello;
 
 public class Greeting {
 
-    private final long id;
-    private final String content;
+    private static long id;
+    private static String content;
 
     public Greeting(long id, String content) {
         this.id = id;
         this.content = content;
     }
 
-    public long getId() {
+    public static long getId() {
         return id;
     }
 
-    public String getContent() {
+    public static String getContent() {
         return content;
     }
 }