java - Hibernate insert or update datetime mysql always get 12 :00:00 or 00:00:00

Question

我是 hibernate 新手

我用hibernate和struts2写了一个小应用

我的问题是

当我更新日期时间时，我的时间将是 00:00:00 或 12:00:00，它与我选择的 04:50:10 或 18:20:11 不正确

试了很多次还是不行

在我的表单中，我有一个字段是字符串，然后我将它转换成日期，然后用 hibernate 更新它

我的转换代码

public Date convertStringToDate(String str) {
        Date date = null;
        SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss a");
        try {
            date = formatter.parse(str);
        } catch (ParseException ex) {
            Logger.getLogger(NewsAdminAction.class.getName()).log(Level.SEVERE, null, ex);
        }
        return date;
    }

    public String convertDateToString(Date date) {
        SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss a");
        String str = formatter.format(date);
        return str;
    }

我的更新代码 hibernate

//create session begin transaction

    String sqlNoThumb = "UPDATE News set title = :title, info = :info, publicdate = :publicdate, active = :active, titleviet = :titleviet where idnews = :idnews";

    Query query = session.createQuery(sqlNoThumb);
                    query.setString("title", news.getTitle());
                    query.setString("info", news.getInfo());
                    query.setDate("publicdate", news.getPublicdate());
                    query.setInteger("active", news.getActive());
                    query.setString("titleviet", news.getTitleviet());
                    query.setInteger("idnews", news.getIdnews());
                    result = query.executeUpdate();

Answer 1

您需要使用 java.sql.Timestamp，而不是 java.sql.Date

From the JavaDocs :

To conform with the definition of SQL DATE, the millisecond values wrapped by a java.sql.Date instance must be 'normalized' by setting the hours, minutes, seconds, and milliseconds to zero