在API中增加接口，可以通过API获取当前组网中的共识节点数目和非共识节点数目。

src/main/scala/rep/api/rest/RestActor.scala

@@ -58,6 +58,7 @@ object RestActor {
 
   val contractOperationMode = SystemProfile.getContractOperationMode
   case object ChainInfo
+  case object NodeNumber
 
   case class SystemStart(cout: Int)
   case class SystemStop(from: Int, to: Int)
@@ -290,5 +291,11 @@ class RestActor(moduleName: String) extends ModuleBase(moduleName) {
       val cij = JsonFormat.toJson(sr.getBlockChainInfo)
       sender ! QueryResult(Option(cij))
 
+    case NodeNumber =>
+      val stablenode = pe.getNodeMgr.getStableNodes.size
+      val snode = pe.getNodeMgr.getNodes.size
+      val rs = "{\"consensus nodes\":\""+stablenode+"\",\"nodes\":\""+snode+"\"}"
+      sender !  QueryResult(Option(JsonMethods.parse(string2JsonInput(rs))))
+      
   }
 }

src/main/scala/rep/api/rest/RestService.scala

@@ -66,7 +66,7 @@ class ChainService(ra: ActorRef)(implicit executionContext: ExecutionContext)
   implicit val formats = DefaultFormats
   implicit val timeout = Timeout(20.seconds)
 
-  val route = getBlockChainInfo
+  val route = getBlockChainInfo ~ getNodeNumber
 
   @ApiOperation(value = "返回块链信息", notes = "", nickname = "getChainInfo", httpMethod = "GET")
   @ApiResponses(Array(
@@ -80,6 +80,20 @@ class ChainService(ra: ActorRef)(implicit executionContext: ExecutionContext)
         }
       }
     }
+
+  @Path("/node")
+  @ApiOperation(value = "返回组网节点数量", notes = "", nickname = "getNodeNumber", httpMethod = "GET")
+  @ApiResponses(Array(
+    new ApiResponse(code = 200, message = "返回组网节点数量", response = classOf[QueryResult])))
+  def getNodeNumber =
+    path("chaininfo" / "node") {
+      get {
+        extractClientIP { ip =>
+          RepLogger.debug(RepLogger.APIAccess_Logger, s"remoteAddr=${ip} get node number")
+          complete { (ra ? NodeNumber).mapTo[QueryResult] }
+        }
+      }
+    }
 }
 
 /**