标签场景查询根据 DisplayOrder降序排序

yd-api/src/main/java/com/yd/api/metadata/service/impl/MetadataServiceImpl.java

 package com.yd.api.metadata.service.impl;
 
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -317,11 +318,41 @@ public class MetadataServiceImpl implements MetadataService {
 	        }
         }
         
+		//降序排序
+        tagViewQueryOrderByDisplay(tagViewQueryInfos);
+
         responseVO.setTagViewQueryInfos(tagViewQueryInfos);
         responseVO.setCommonResult(new CommonResult(true, ZHBErrorConfig.getErrorInfo("800000")));
         return responseVO;
     }
     
+    /**
+     * 返回的标签根据 DisplayOrder降序排序
+     * @param tagViewQueryInfos
+     */
+    private void tagViewQueryOrderByDisplay(List<TagViewQueryInfo> tagViewQueryInfos){
+    	if(tagViewQueryInfos != null && tagViewQueryInfos.size() > 0){
+	        tagViewQueryInfos.sort(new Comparator<TagViewQueryInfo>() {
+				@Override
+				public int compare(TagViewQueryInfo o1, TagViewQueryInfo o2) {
+					if(o2.getDisplayOrder() == null){
+						o2.setDisplayOrder(-1);
+					}
+					if(o1.getDisplayOrder() == null){
+						o1.setDisplayOrder(-1);
+					}
+					//按照value值，用compareTo()方法默认是从小到大排序
+					return o2.getDisplayOrder().compareTo(o1.getDisplayOrder());
+				}
+			});
+	        for (TagViewQueryInfo tagViewQueryInfo : tagViewQueryInfos) {
+	        	if(tagViewQueryInfo != null && tagViewQueryInfo.getTagViewQueryInfos() != null && tagViewQueryInfo.getTagViewQueryInfos().size() > 0){
+	        		tagViewQueryOrderByDisplay(tagViewQueryInfo.getTagViewQueryInfos());
+	        	}
+	        }
+    	}
+    }
+    
     @SuppressWarnings("unchecked")
     private void classificationBuildUpMdTagView(List<MdTagView> mdTagViewList,
                                             List<MdTagView> mdTagViewAddList,