fix：“优化广告搜索功能”

src/main/java/com/szwl/controller/TAdController.java

@@ -70,7 +70,7 @@ public class TAdController {
             query.eq(TAd::getEquipmentType,type);
         }
         if(StringUtils.isNotEmpty(userName)){
-            query.eq(TAd::getUsername,userName);
+            query.like(TAd::getUsername,userName);
         }
         if(StringUtils.isNotEmpty(name)){
             query.eq(TAd::getName,name);