fix: When server port is 0, the program will not exit normally

service/controller/controller.go

@@ -1,6 +1,7 @@
 package controller
 
 import (
+	"errors"
 	"fmt"
 	"log"
 	"reflect"
@@ -75,6 +76,9 @@ func (c *Controller) Start() error {
 	if err != nil {
 		return err
 	}
+	if newNodeInfo.Port == 0 {
+		return errors.New("server port must > 0")
+	}
 	c.nodeInfo = newNodeInfo
 	c.Tag = c.buildNodeTag()
 
@@ -183,6 +187,9 @@ func (c *Controller) nodeInfoMonitor() (err error) {
 		log.Print(err)
 		return nil
 	}
+	if newNodeInfo.Port == 0 {
+		return errors.New("server port must > 0")
+	}
 
 	// Update User
 	var usersChanged = true