1.查询对象为系统的图形，2 system节点的筛选

src/main/java/com/keymobile/metadata/metadataRelation/controller/MetaDataController.java

@@ -88,8 +88,13 @@ public class MetaDataController {
     @RequestMapping(path = "/searchGraphByMetadataId", method = RequestMethod.GET)
     public ReturnReslult searchGraphByMetadataId(String metadataId,String layer){
         int layerLong = Integer.valueOf(layer);
-
-        return  metadataService.searchGraph(metadataId,layerLong);
+        ReturnReslult returnReslult = null;
+        if(metadataId.startsWith("System=")){
+            returnReslult = metadataService.searchGraphBySystem(metadataId,layerLong);
+        }else {
+            returnReslult = metadataService.searchGraph(metadataId,layerLong);
+        }
+        return  returnReslult;
     }
 
 
@@ -138,9 +143,11 @@ public class MetaDataController {
         if (modelName0 == null || modelName0.equals("")) {
             modelName0 = "Table";
         }
-        if(!modelName0.toLowerCase().equals("all")){
+        if(modelName0.toLowerCase().equals("system")){
+            returnReslult = metadataService.getSystemGraph(sizeInt);
+        }else if( !modelName0.toLowerCase().equals("all")){
             returnReslult = metadataService.findResultByModelName(modelName0,sizeInt);
-        }else {
+        }else{
             List<MetaData> metaDataList = metadataService.finAllMetaData();
             Map<String, Node> nodeMap = new HashMap<>();
 
@@ -305,7 +312,8 @@ public class MetaDataController {
     @ApiOperation(tags = "", value = "系统总图")
     @RequestMapping(path = "/getSystemGraph", method = RequestMethod.GET)
     public ReturnReslult getSystemGraph(){
-        return metadataService.getSystemGraph();
+        int size = 300;
+        return metadataService.getSystemGraph(size);
 
     }
 

src/main/java/com/keymobile/metadata/metadataRelation/service/IMetadataService.java

@@ -16,7 +16,7 @@ public interface IMetadataService {
 
     ReturnReslult findResultByModelName(String modelName,int count );
 
-    ReturnReslult getSystemGraph();
+    ReturnReslult getSystemGraph(int size);
 
     ReturnReslult searchGraph(String metadataId,int layer );
 
@@ -95,4 +95,6 @@ public interface IMetadataService {
     List<TempNode> findAllTempNode();
 
     Map<String, String> getAutoMatchByInput(String name,int countInt ,int offsetInt);
+
+    ReturnReslult searchGraphBySystem(String metadataId, int layerLong);
 }