update

mec-common/common-core/src/main/java/com/ym/mec/common/entity/ImUserModel.java

@@ -17,7 +17,7 @@ public class ImUserModel {
         this.id = id;
         this.name = name;
         if(StringUtils.isEmpty(portrait)){
-            this.portrait = "https://daya-online.oss-cn-beijing.aliyuncs.com/201910/RgHwgKc.jpg";
+            this.portrait = "https://daya-online.oss-cn-beijing.aliyuncs.com/201912/RkoZBNq.jpeg";
         }else {
             this.portrait = portrait;
         }