java??????????????
???????????? ???????[ 2013/2/19 10:04:56 ] ????????
?????????????????У???????????????????????????д???????????????????????????????????????
????????????????????@???????????????????Java??????????Java SE5???????????????
????@Override????????????????彫????????е??????
????@Deprecated????????????????????????????????棬??????@Deprecated???????????????????????
????@SuppressWarnings???????????????????????
?????????????????????????????д??????????????Java??????4??????????????????????
@Target
???????????????????????????ElementType?????У?
CONSTRUCTOR??????????????
FIELD??????????????enum?????
LOCAL_VARIABLE?????????????
METHOD??????????
PACKAGE????????
PARAMETER??????????
TYPE??????????????????????enum????
@Retention
??????????????????????????????RetentionPolicy??????????
SOURCE?????????????????
CLASS???????class????п????????VM????
RUNTIME??VM???????????????????????????????????????????
@Document
??????????Javadoc??
@Inherited
?????????и????е????
???????????????????
1 @Target(ElementType.METHOD)
2 @Retention(RetentionPolicy.RUNTIME)
3 public @interface Test {
4
5 }
????????@??????????????????????????????????????????????????@Target??@RetentionPolicy??????????????????????????????
??????????????????Щ????????Щ?????????????????????????????????????????????????????????????????????????@Test???????????
??????????????????????????????л????????String??Class??enum??Annotation???????????????????????????в?????????????????????????????????????????????????????????null????????????????????????????????????value??????£???????????????????“value=”?????д?????????ɡ?
???????濴????????????????
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface UseCase {
public String id();
public String description() default "no description";
}
??????
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??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
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2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11