1) 简单类型:这种annotation只能用于其它code,不能用于annotation 类型。 2)Meta Annotation: 这种annotation是用于annotation type的,也就是annotation of annotation. Out-of-the-box Simple Annotation Types in JDK JDK提供了3个简单类型的annotations, 包
Predefined Annotation TypesA set of annotation types are predefined in the Java SE API. Some annotation types are used by the Java compiler, and some apply to other annotations. Annotation Types Used by the Java Language The predefined annotation types defined in java.lang are @Deprecated, @...
public Set<String> getSupportedAnnotationTypes() { Set<String> types = new LinkedHashSet<String>(); types.add(SetHandler.class.getCanonicalName()); types.add(GetHandler.class.getCanonicalName()); return types; } @Override public SourceVersion getSupportedSourceVersion() { return SourceVersion.l...
ANNOTATION_TYPE, // Annotation Types (meta-annotations) PACKAGE // Java package } 想要使用ElementType,只需要为注释添加@Target即可: @Target( { ElementType.METHOD, ElementType.CONSTRUCTOR }) public @interface TargetTest { } 正如上面代码所展示的,我们只允许Greeting注释标注在普通方法和构造函数上,使用在...
モジュール java.compiler パッケージ javax.annotation.processing 注釈型SupportedAnnotationTypes@Documented @Target(TYPE) @Retention(RUNTIME) public @interface SupportedAnnotationTypes ある注釈プロセッサがサポートする注釈型を示すのに使用される注釈。 Processor.getSupportedAnnotationTypes()メソッドは...
@SuppressWarnnings:用于通知java编译器禁止特定的编译警告。 下面我们依次看看三个内置标准注解的作用和使用场景。 我们最熟悉的应该是:@Override, 它的定义如下: /** * Indicates that a method declaration is intended to override a * method declaration in a supertype. If a method is annotated with ...
通过signature可以获取名称getName() 和参数类型getParameterTypes() getTarget()获取目标类: Class<?> clazz = joinPoint.getTarget().getClass(); 如果被切的类 是 被别的切面切过的类,可以使用AopUtils.getTargetClass获取一个数组,再从数组中找你期望的类。
* More information about annotation types can be found in section 9.6 of * The Java™ Language Specification. * * The {@link java.lang.reflect.AnnotatedElement} interface discusses * compatibility concerns when evolving an annotation type from being * non-repeatable...
java.lang包中提供3个注解类型(Annotation Types):1、@SuppressWarnings取消警告 @Target({TYPE, FIELD, METHOD, P…www.cnblogs.com|基于3个网页 2. 注释的类别 奇幻基金会社群事... ... Viewing Content 观看资料内容 Annotation Types 注释的类别 Changing Count Information 改变帐号资 …forum.fantasy.tw|基...
javac -Xlint:serial MySerialClass.javaCopy The compiler will then check the signatures and the types of the annotated members and issue a warning if they don’t match the expected ones. Furthermore, the compiler will also throw an error if@Serialis applied: ...