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893天前//显示所有注释类和方法 |
import java.lang.annotation.*; |
import java.lang.reflect.*; |
|
@Retention(RetentionPolicy.RUNTIME) |
@interface MyAnno { |
String str(); |
int val(); |
} |
|
@Retention(RetentionPolicy.RUNTIME) |
@interface What { |
String description(); |
} |
|
@What(description = "An annotation test class") |
@MyAnno(str = "Meta2", val = 99) |
class Meta2 { |
|
@What(description = "An annotation test method") |
@MyAnno(str = "Testing", val = 100) |
|
public static void myMeth() { |
Meta2 ob = new Meta2(); |
|
try { |
Annotation annos[] = ob.getClass().getAnnotations(); |
|
// Display all annotations for Meta2. |
System.out.println("All annotations for Meta2:"); |
for(Annotation a : annos) |
System.out.println(a); |
|
System.out.println(); |
|
// Display all annotations for myMeth. |
Method m = ob.getClass( ).getMethod("myMeth"); |
annos = m.getAnnotations(); |
|
System.out.println("All annotations for myMeth:"); |
for(Annotation a : annos) |
System.out.println(a); |
} catch (NoSuchMethodException exc) { |
System.out.println("Method Not Found."); |
} |
} |
|
public static void main(String args[]) { |
myMeth(); |
} |
} |
初级程序员
by: 1122觞逝 发表于：2013-07-02 13:11:30 顶(0) | 踩(0) 回复
很不错，谢了········
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