refactor(McpServers): Replace hardcoded default values with constants for base URL and SSE endpoint

Author: codeboyzhou

src/main/java/com/github/codeboyzhou/mcp/declarative/McpServers.java

@@ -16,6 +16,9 @@
 import io.modelcontextprotocol.spec.McpServerTransportProvider;
 import org.reflections.Reflections;
 
+import static io.modelcontextprotocol.server.transport.HttpServletSseServerTransportProvider.DEFAULT_BASE_URL;
+import static io.modelcontextprotocol.server.transport.HttpServletSseServerTransportProvider.DEFAULT_SSE_ENDPOINT;
+
 public class McpServers {
 
     private static final McpServers INSTANCE = new McpServers();
@@ -24,8 +27,6 @@ public class McpServers {
 
     private static final String DEFAULT_MESSAGE_ENDPOINT = "/message";
 
-    private static final String DEFAULT_SSE_ENDPOINT = "/sse";
-
     private static final int DEFAULT_HTTP_SERVER_PORT = 8080;
 
     private static Reflections reflections;
@@ -80,31 +81,29 @@ public void startSyncSseServer(McpSseServerInfo serverInfo) {
     public void startSyncSseServer(String name, String version, String messageEndpoint, String sseEndpoint, int port) {
         McpSseServerInfo serverInfo = McpSseServerInfo.builder().name(name).version(version)
             .instructions("You are using a deprecated API with default server instructions")
-            .baseUrl("").messageEndpoint(messageEndpoint).sseEndpoint(sseEndpoint).port(port)
+            .baseUrl(DEFAULT_BASE_URL).messageEndpoint(messageEndpoint)
+            .sseEndpoint(sseEndpoint).port(port)
             .build();
-
         startSyncSseServer(serverInfo);
     }
 
     @Deprecated(since = "0.2.0")
     public void startSyncSseServer(String name, String version, int port) {
         McpSseServerInfo serverInfo = McpSseServerInfo.builder().name(name).version(version)
             .instructions("You are using a deprecated API with default server instructions")
-            .baseUrl("").messageEndpoint(DEFAULT_MESSAGE_ENDPOINT).sseEndpoint(DEFAULT_SSE_ENDPOINT)
-            .port(port)
+            .baseUrl(DEFAULT_BASE_URL).messageEndpoint(DEFAULT_MESSAGE_ENDPOINT)
+            .sseEndpoint(DEFAULT_SSE_ENDPOINT).port(port)
             .build();
-
         startSyncSseServer(serverInfo);
     }
 
     @Deprecated(since = "0.2.0")
     public void startSyncSseServer(String name, String version) {
         McpSseServerInfo serverInfo = McpSseServerInfo.builder().name(name).version(version)
             .instructions("You are using a deprecated API with default server instructions")
-            .baseUrl("").messageEndpoint(DEFAULT_MESSAGE_ENDPOINT).sseEndpoint(DEFAULT_SSE_ENDPOINT)
-            .port(DEFAULT_HTTP_SERVER_PORT)
+            .baseUrl(DEFAULT_BASE_URL).messageEndpoint(DEFAULT_MESSAGE_ENDPOINT)
+            .sseEndpoint(DEFAULT_SSE_ENDPOINT).port(DEFAULT_HTTP_SERVER_PORT)
             .build();
-
         startSyncSseServer(serverInfo);
     }