Java ¶ÁÈ¡ÊôÐÔÎļþÎÊÌâ
InputStream stream;
Properties prop = new Properties();// ÊôÐÔ¼¯ºÏ¶ÔÏó
stream = getClass().getResourceAsStream("NcJdbc.properties");
prop.load(stream);
stream.close();// ¹Ø±ÕÁ÷
String databaseName=prop.getProperty("jdbc.databaseName");
InputStream stream;
Properties prop = new Properties();// ÊôÐÔ¼¯ºÏ¶ÔÏó
stream = stream = getClass().getClassLoader().getResourceAsStream("NcJdbc.properties");
prop.load(stream);
stream.close();// ¹Ø±ÕÁ÷
String databaseName=prop.getProperty("jdbc.databaseName");
ÒÔÉÏ Ö÷񻂿±ðÊÇgetClassLoader()·½·¨¡£
Èç¹û ÊÇ getClassLoader() ·½·¨£¬ÊôÐÔÎļþÒª·ÅÔÚsrcÏÂ
Èç¹û²»ÓÃgetClassLoader() ·½·¨£¬ÒªÖ±½Ó·ÅÔÚ ºÍµ÷ÓÃÀàͬһĿ¼Ï¡£
Ïà¹ØÎĵµ£º
ListµÄÓ÷¨
List°üÀ¨List½Ó¿ÚÒÔ¼°List½Ó¿ÚµÄËùÓÐʵÏÖÀà¡£ÒòΪList½Ó¿ÚʵÏÖÁËCollection½Ó¿Ú£¬ËùÒÔList½Ó¿ÚÓµÓÐCollection½Ó¿ÚÌṩµÄËùÓг£Ó÷½·¨£¬ÓÖÒòΪListÊÇÁбíÀàÐÍ£¬ËùÒÔList½Ó¿Ú»¹ÌṩÁËһЩÊʺÏÓÚ×ÔÉíµÄ³£Ó÷½·¨£¬Èç±í1Ëùʾ¡£
±í1 List½Ó¿Ú¶¨ÒåµÄ³£Ó÷½·¨¼°¹¦ÄÜ
´Ó±í1¿ÉÒÔ¿´³ö£¬List½Ó¿ÚÌṩµÄÊʺÏÓÚ×ÔÉíµÄ ......
µÚÒ»½×¶Î£ºJAVA»ù´¡ÔöÇ¿/Oracle+MySqlÊý¾Ý¿â+JDBC¿ª·¢¼¼Êõ+DAO·â×°
ºËÐļ¼Êõ¿Î³Ì
java»ù´¡¼ÓÇ¿£ºÔöÇ¿forÑ»·¡¢¿É±ä²ÎÊý¡¢Ã¶¾Ù¡¢·´Éä¡¢ÄÚÊ¡¡¢beanutils¹¤¾ß¡¢×¢½â¡¢·ºÐÍ¡¢Àà¼ÓÔØ¡¢´úÀí¡¢×°Ïä/²ðÏä¡¢¾²Ì¬ÒýÓõÈJavaм¼ÊõºÍ¸ß¼¶¼¼Êõ¡£
OracleºÍMySqlÊý¾Ý¿â£ºOracleºÍMySqlÊý¾Ý¿â»ù´¡¹ÜÀí¡¢SQL ÓïÑÔ¡¢PL/SQLÓïÑÔ¡¢Êý¾Ý¿âÉ ......
1¡¢Óï·¨£º±ØÐë±È½ÏÊìϤ£¬ÔÚд´úÂëµÄʱºòIDEµÄ±à¼Æ÷¶ÔijһÐб¨´íÓ¦¸ÃÄܹ»¸ù¾Ý±¨´íÐÅÏ¢ÖªµÀÊÇʲôÑùµÄÓï·¨´íÎó²¢ÇÒÖªµÀÈκÎÐÞÕý¡£
2¡¢ÃüÁ±ØÐëÊìϤJDK´øµÄһЩ³£ÓÃÃüÁî¼°Æä³£ÓÃÑ¡ÏÃüÁîÖÁÉÙÐèÒªÊìϤ£ºappletviewer¡¢ HtmlConverter¡¢jar¡¢ java¡¢javac¡¢javadoc¡¢javap¡¢javaw¡¢native2ascii¡¢serialver£¬Èç¹ûÕâЩÃüÁî ......
ÓÐʱºò£¬ÀàµÄͬһÖÖ¹¦ÄÜÓжàÖÖʵÏÖ·½Ê½£¬µ½µ×²ÉÓÃÄÇÖÖʵÏÖ·½Ê½£¬È¡¾öÓÚµ÷ÓÃÕß
¸ø¶¨µÄ²ÎÊý¡£ÀýÈçÔÓ¼¼Ê¦ÄÜѵÁ·¶¯Î¶ÔÓÚ²»Í¬µÄ¶¯ÎïÓв»Í¬µÄѵÁ··½Ê½¡£
public void train
(Dog dog){
//
ѵÁ·Ð¡¹·Õ¾Á¢£¬ÅŶӣ¬×öËã ......
Ò»¡¢PO:
persistant object
³Ö¾Ã¶ÔÏó,¿ÉÒÔ¿´³ÉÊÇÓëÊý¾Ý¿âÖеıíÏàÓ³ÉäµÄjava¶ÔÏó¡£×î¼òµ¥µÄPO¾ÍÊǶÔÓ¦Êý¾Ý¿âÖÐij¸ö±íÖеÄÒ»Ìõ¼Ç¼£¬¶à¸ö¼Ç¼¿ÉÒÔÓÃPOµÄ¼¯ºÏ¡£POÖÐÓ¦¸Ã²»°ü
º¬ÈκζÔÊý¾Ý¿âµÄ²Ù×÷¡£
¶þ¡¢VO
:value
objectÖµ¶ÔÏó¡£Í¨³£ÓÃÓÚÒµÎñ²ãÖ®¼äµÄÊý¾Ý´«µÝ£¬ºÍPOÒ»ÑùÒ²Êǽö½ö°üº¬Êý¾ ......