Merge pull request #12150 in DESIGN/design from release/11.0 to bugfix/11.0

* commit '5cbacf682fd218600e790b719e33d5ecee5e08c7':
  REPORT-96107 8.0和11.0.2能双开，8.0和11.0.14不能双开--调整
  REPORT-96107 8.0和11.0.2能双开，8.0和11.0.14不能双开--魔数
  REPORT-96107 8.0和11.0.2能双开，8.0和11.0.14不能双开--方案调整
  REPORT-96107 8.0和11.0.2能双开，8.0和11.0.14不能双开

designer-base/src/main/java/com/fr/design/utils/DesignUtils.java

@@ -66,8 +66,8 @@ import java.util.concurrent.TimeoutException;
  * Some util method of Designer
  */
 public class DesignUtils {
-    private static int port = DesignerPort.getInstance().getMessagePort();
 
+    private static Integer port;
 
     private static boolean started = false;
 
@@ -80,6 +80,9 @@ public class DesignUtils {
     }
 
     public synchronized static int getPort() {
+        if (port == null) {
+            setPort(DesignerPort.getInstance().getMessagePort());
+        }
         return port;
     }
 
@@ -93,7 +96,6 @@ public class DesignUtils {
         return started;
     }
 
-
     /**
      * 判断设计器端口是否被其他程序占用
      * 尝试去通信，无回应就是其他程序占用端口，否则需要继续判断是否为设计器进程未关闭
@@ -103,7 +105,7 @@ public class DesignUtils {
     public static boolean isPortOccupied() {
         ExecutorService executor = null;
         Future<String> future = null;
-        try (Socket socket = new Socket("localhost", port);
+        try (Socket socket = new Socket("localhost", getPort());
              BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream(), StandardCharsets.UTF_8));
              PrintWriter writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(), StandardCharsets.UTF_8)))) {
             writer.println("check");
@@ -167,7 +169,7 @@ public class DesignUtils {
         if (lines == null || lines.length == 0) {
             return;
         }
-        try (Socket socket = new Socket("localhost", port)) {
+        try (Socket socket = new Socket("localhost", getPort())) {
             clientSend(lines, socket);
         } catch (Exception ignore) {
 
@@ -190,7 +192,7 @@ public class DesignUtils {
                 try {
                     serverSocket = new ServerSocket(startPort);
                 } catch (IOException e1) {
-                    FineLoggerFactory.getLogger().error("Cannot create server socket on " + port);
+                    FineLoggerFactory.getLogger().error("Cannot create server socket on " + getPort());
                 }
                 while (true) {
                     try {
@@ -250,7 +252,7 @@ public class DesignUtils {
                             reader.close();
                             socket.close();
                         } else {
-                            FineLoggerFactory.getLogger().error("Cannot create server socket on " + port);
+                            FineLoggerFactory.getLogger().error("Cannot create server socket on " + getPort());
                             break;
                         }
                     } catch (IOException ignored) {
@@ -484,6 +486,7 @@ public class DesignUtils {
 
     /**
      * 获取设计器可用字体
+     *
      * @return
      */
     public static String[] getAvailableFontFamilyNames4Report() {