MySQLµÄID 32768 ÎÊÌâ
ÎÒÊÇʹÓÃspring+hibernate +mysqlµÄ¿ª·¢»·¾³ ʹÓÃannotationÀ´ÅäÖÃMysqlµÄÓ³Éä¹ØÏµ beanÈçÏ£º @SuppressWarnings("serial") @MappedSuperclass public class PersistenceSupport implements Serializable { @Id @GeneratedValue(generator = "persistenceGenerator") @GenericGenerator(name = "persistenceGenerator", strategy = "hilo") private Long id ; public Long getId() { return id; } public void setId(Long id) { this.id = id; } } Çé¿öΪ£º ÿ´ÎÖØÐÂÆô¶¯tomcat£¬Ð²åÈë¼Ç¼µÄid¾Í´ÓÔÀ´Õý³£µÄ˳ÐòÈç123456£¬Ò»ÏÂ×ÓÌøµ½´Ó32768¿ªÊ¼ Èç¹ûÔÙ´ÎÖØÆôtomcat£¬ÔòÓÖ´Ó32768µÄ2±¶65535¿ªÊ¼ ÇëÎÊ£¬ÒªÈçºÎÅäÖÃ@GeneratedValueµÄÉú³É²ßÂÔ£¬²ÅÄÜʹid°´ÕÕ˳ÐòÅÅÁÐÏÂÈ¥ÄØ£¿
ÎÒÔø¾³¢ÊÔ¹ýʹÓÃ@GeneratedValue(strategy = GenerationType.TABLE) Ò²ÊÇÏàͬµÄÇé¿ö ʹÓÃ@GeneratedValue(strategy = GenerationType.AUTO) ºÍ@GeneratedValue(strategy = GenerationType.IDENTITY) Ôò±¨´í£º exception is org.hibernate.MappingException: Cannot use identity column key generation with <union-subclass> Çë¸ßÈ˸Ͽì¾È¾ÈÎÒ°É£¡ÒýÓà ¹À¼ÆÎÊÌâ³öÔÚÄãÓ³ÉäidµÄµØ·½ÁË Ã¿´ÎÓ³Éä¶¼´ÓidµÄ×îÄ©¶Ë¿ªÊ¼ ÄÇÇëÎÊÎÒµÄÅäÖÃÓ¦¸ÃÔõô
Ïà¹ØÎÊ´ð£º
×ö¸öÕ¾ÄÚËÑË÷£¬ÏÖÔÚÓÃlike ÕâÑùµÄЧÂÊʵÔÚÌ«µÍÁË£¬Ïë¸Ä³ÉÈ«ÎÄËÑË÷·½Ê½¡£ µ«¿´ÁËÍøÉÏ˵µÄÖÐÎÄÖ§³Ö²»ºÃ£¬ÏëÎÊһϸ÷λÐÖµÜÊÇÈçºÎ½â¾öÕâ¸öÎÊÌâµÄ£¿ µ¥¶À½¨Á¢Ö÷Ìâ±íºÍÄÚÈÝ±í ¼ìË÷Ö÷Ìâ È»ºó¸ù¾ÝÖ÷Ìâ¼ìË÷Ä ......
ÎÒÓÃÒ»¸öÑ»·ÍùÊý¾Ý¿âÀïÃæ´æÎļþ£¬±¾À´¿ÉÒÔ×÷ΪÎļþ´æ·ÅÊý¾Ý¿âÀïÃæÖ»·ÅÎļþµÄλÖõ쬵«ÊÇûÓа취×âµÄ·þÎñÆ÷ÍøÒ³¿Õ¼ä´óСÓÐÏÞÖÆÊý¾Ý¿âûÓÐÏÞÖÆ¡£Óï¾äÊÇÕâÑùµÄ public static final DataBase.MAXSIZE=102 ......
SELECT a.tguildname ,SUM(a.ct) + if (SUM(b.ct) IS NULL ,0,SUM(b.ct)) from ( SELECT tg.tguildname,c.cid, ( cf.fbb + cf.fgjbb + cf.fjybb + cf.fqb + cf.fgjqb + cf.fjyqb + cf.fqib + cf. ......
»·¾³£ºwin2003 apache2 resin3 php5 mysql5 mysql´íÎóÀï³öÏÖÕâ¸ö£¬·þÎñÆ÷Ö±½ÓËÀµ½ÄÇÀï¡£ InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_log ......
ÐèÇó£º 1 1 2 1 3 2 4 2 5 2 6 3 7 3 8 3 9 3 ......