知识点判断

web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseHandsOnService.java

@@ -6,6 +6,7 @@ import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.lang.Snowflake;
 import cn.hutool.core.util.NumberUtil;
 import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.StrUtil;
 import cn.jlw.util.ToolUtils;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
@@ -176,6 +177,8 @@ public class TeacherOpenCourseHandsOnService extends CoreBaseService<TeacherOpen
                     .stream()
                     .map(i -> i.getTeacherOpenCourseKnowledgePointId().toString()).collect(Collectors.joining(","));
 
+
+            if (StrUtil.isNotBlank(collect)) {
                 TeacherOpenCourseKnowledgePointRelationQuery relationQuery = new TeacherOpenCourseKnowledgePointRelationQuery();
                 relationQuery.setOrgId(teacherOpenCourseHandsOn.getOrgId());
                 relationQuery.setUserId(teacherOpenCourseHandsOn.getUserId());
@@ -185,6 +188,7 @@ public class TeacherOpenCourseHandsOnService extends CoreBaseService<TeacherOpen
                 relationQuery.setTeacherOpenCourseId(teacherOpenCourseHandsOn.getTeacherOpenCourseId().toString());
                 teacherOpenCourseKnowledgePointRelationService.addBindingKnowledge(relationQuery,true,2);
             }
+        }
         JsonResult jsonResult = new JsonResult();
         jsonResult.setData(teacherOpenCourseHandsOn.getHandsOnId());//自增的ID丢进去
         jsonResult.setCode(JsonReturnCode.SUCCESS.getCode());