PostgreSQL 提示：You will need to rewrite or cast the expression. column "state" is of type status but expression is of type character varying

我正在try 使用java创建SQL语句.问题是我正在使用

 stmt.setString(9, ev.getState().status());

对于一个变量，我试图将其插入status类型的SQL列中

 CREATE TYPE STATUS AS ENUM ('APPROVED', 'CLOSED','STARTED', 'WAITING');

这是我的一个例外

column "state" is of type status but expression is of type character varying
Hint: You will need to rewrite or cast the expression.

我是犯了错误还是真的需要在sql中转换值？如果是的话，在这种情况下如何施展？

完整声明:

     PreparedStatement stmt = conn.prepareStatement("INSERT INTO Event (EventNum, EventName, startHour, endHour, startMin, endMin, startDate, endDate, State, depName) VALUES (?, ?, ?, ?, ?, ?, ?::date, ?::date, ?, ?)");




     stmt.setInt(1, ev.getEventNum());
     stmt.setString(2, ev.getName());
     stmt.setInt(3, ev.getStartHour());
     stmt.setInt(4, ev.getEndHour());
     stmt.setInt(5, ev.getStartMinute());
     stmt.setInt(6, ev.getEndMinute());
     stmt.setString(7, ev.getStartYear() + "-" + ev.getStartMonth() + "-" + ev.getStartDate());
     stmt.setString(8, ev.getEndYear() + "-" + ev.getEndMonth() + "-" + ev.getEndDate());
     stmt.setString(9, ev.getState().status());
     stmt.setString(10, ev.getDepartment());



     stmt.executeUpdate();