。。。

examcloud-task-dao/src/main/java/cn/com/qmth/examcloud/task/dao/entity/CopyExamStudentEntity.java

@@ -1,6 +1,9 @@
 package cn.com.qmth.examcloud.task.dao.entity;
 
+import javax.persistence.Column;
 import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
 import javax.persistence.Id;
 import javax.persistence.IdClass;
 import javax.persistence.Table;
@@ -44,6 +47,8 @@ public class CopyExamStudentEntity extends JpaEntity {
 	/**
 	 * 状态
 	 */
+	@Column(nullable = false)
+	@Enumerated(EnumType.STRING)
 	private CopyExamStudentStatus status;
 
 	public Long getRootOrgId() {