本文整理了Java中java.lang.Class.getAnnotations()方法的一些代码示例，展示了Class.getAnnotations()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Class.getAnnotations()方法的具体详情如下：
包路径：java.lang.Class
类名称：Class
方法名：getAnnotations

Class.getAnnotations介绍

[英]Returns an array containing all the annotations of this class. If there are no annotations then an empty array is returned.
[中]返回包含此类的所有批注的数组。如果没有注释，则返回一个空数组。

代码示例

代码示例来源：origin: spring-projects/spring-framework

/**
 * Create a new {@link StandardAnnotationMetadata} wrapper for the given Class,
 * providing the option to return any nested annotations or annotation arrays in the
 * form of {@link org.springframework.core.annotation.AnnotationAttributes} instead
 * of actual {@link Annotation} instances.
 * @param introspectedClass the Class to introspect
 * @param nestedAnnotationsAsMap return nested annotations and annotation arrays as
 * {@link org.springframework.core.annotation.AnnotationAttributes} for compatibility
 * with ASM-based {@link AnnotationMetadata} implementations
 * @since 3.1.1
 */
public StandardAnnotationMetadata(Class<?> introspectedClass, boolean nestedAnnotationsAsMap) {
  super(introspectedClass);
  this.annotations = introspectedClass.getAnnotations();
  this.nestedAnnotationsAsMap = nestedAnnotationsAsMap;
}

代码示例来源：origin: junit-team/junit4

/**
 * Returns the annotations on this class
 */
public Annotation[] getAnnotations() {
  if (clazz == null) {
    return new Annotation[0];
  }
  return clazz.getAnnotations();
}

代码示例来源：origin: google/j2objc

/**
 * Returns the annotations on this class
 */
public Annotation[] getAnnotations() {
  if (fClass == null) {
    return new Annotation[0];
  }
  return fClass.getAnnotations();
}

代码示例来源：origin: lets-blade/blade

public Annotation[] getAnnotations() {
  return clazz.getAnnotations();
}

代码示例来源：origin: lets-blade/blade

public Annotation[] getAnnotations() {
  return clazz.getAnnotations();
}

代码示例来源：origin: prestodb/presto

private static boolean shouldUseFileSplitsFromInputFormat(InputFormat<?, ?> inputFormat)
{
  return Arrays.stream(inputFormat.getClass().getAnnotations())
      .map(Annotation::annotationType)
      .map(Class::getSimpleName)
      .anyMatch(name -> name.equals("UseFileSplitsFromInputFormat"));
}

代码示例来源：origin: libgdx/libgdx

/** Returns an array of {@link Annotation} objects reflecting all annotations declared by the supplied class, and inherited
 * from its superclass. Returns an empty array if there are none. */
static public Annotation[] getAnnotations (Class c) {
  java.lang.annotation.Annotation[] annotations = c.getAnnotations();
  Annotation[] result = new Annotation[annotations.length];
  for (int i = 0; i < annotations.length; i++) {
    result[i] = new Annotation(annotations[i]);
  }
  return result;
}

代码示例来源：origin: libgdx/libgdx

/** Returns an array of {@link Annotation} objects reflecting all annotations declared by the supplied class, and inherited
 * from its superclass. Returns an empty array if there are none. */
static public Annotation[] getAnnotations (Class c) {
  java.lang.annotation.Annotation[] annotations = c.getAnnotations();
  Annotation[] result = new Annotation[annotations.length];
  for (int i = 0; i < annotations.length; i++) {
    result[i] = new Annotation(annotations[i]);
  }
  return result;
}

代码示例来源：origin: com.google.inject/guice

@Override
 public Boolean load(Class<? extends Annotation> annotationType) {
  for (Annotation annotation : annotationType.getAnnotations()) {
   if (annotationTypes.contains(annotation.annotationType())) {
    return true;
   }
  }
  return false;
 }
};

代码示例来源：origin: jersey/jersey

private boolean isEjbComponent(Class<?> component) {
  for (Annotation a : component.getAnnotations()) {
    if (EjbComponentAnnotations.contains(a.annotationType().getName())) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: oblac/jodd

/**
 * Returns {@code true} if type is a Kotlin class.
 */
public static boolean isKotlinClass(final Class type) {
  final Annotation[] annotations = type.getAnnotations();
  for (Annotation annotation : annotations) {
    if (annotation.annotationType().getName().equals("kotlin.Metadata")) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: junit-team/junit4

/**
 * Create a <code>Description</code> named after <code>testClass</code>
 *
 * @param testClass A {@link Class} containing tests
 * @return a <code>Description</code> of <code>testClass</code>
 */
public static Description createSuiteDescription(Class<?> testClass) {
  return new Description(testClass, testClass.getName(), testClass.getAnnotations());
}

代码示例来源：origin: google/j2objc

/**
 * Create a <code>Description</code> named after <code>testClass</code>
 *
 * @param testClass A {@link Class} containing tests
 * @return a <code>Description</code> of <code>testClass</code>
 */
public static Description createSuiteDescription(Class<?> testClass) {
  return new Description(testClass, testClass.getName(), testClass.getAnnotations());
}

代码示例来源：origin: junit-team/junit4

protected Annotation[] classAnnotations() {
  return testClass.getJavaClass().getAnnotations();
}

代码示例来源：origin: google/j2objc

protected Annotation[] classAnnotations() {
  return fTestClass.getJavaClass().getAnnotations();
}

代码示例来源：origin: junit-team/junit4

private <T extends Annotation> T findDeepAnnotation(
    Annotation[] annotations, Class<T> annotationType, int depth) {
  if (depth == 0) {
    return null;
  }
  for (Annotation each : annotations) {
    if (annotationType.isInstance(each)) {
      return annotationType.cast(each);
    }
    Annotation candidate = findDeepAnnotation(each.annotationType()
        .getAnnotations(), annotationType, depth - 1);
    if (candidate != null) {
      return annotationType.cast(candidate);
    }
  }
  return null;
}

代码示例来源：origin: com.google.inject/guice

/** Returns the scope annotation on {@code type}, or null if none is specified. */
public static Class<? extends Annotation> findScopeAnnotation(
  Errors errors, Class<?> implementation) {
 return findScopeAnnotation(errors, implementation.getAnnotations());
}

代码示例来源：origin: spring-projects/spring-framework

private void recursivelyCollectMetaAnnotations(Set<Annotation> visited, Annotation annotation) {
  Class<? extends Annotation> annotationType = annotation.annotationType();
  String annotationName = annotationType.getName();
  if (!AnnotationUtils.isInJavaLangAnnotationPackage(annotationName) && visited.add(annotation)) {
    try {
      // Only do attribute scanning for public annotations; we'd run into
      // IllegalAccessExceptions otherwise, and we don't want to mess with
      // accessibility in a SecurityManager environment.
      if (Modifier.isPublic(annotationType.getModifiers())) {
        this.attributesMap.add(annotationName,
            AnnotationUtils.getAnnotationAttributes(annotation, false, true));
      }
      for (Annotation metaMetaAnnotation : annotationType.getAnnotations()) {
        recursivelyCollectMetaAnnotations(visited, metaMetaAnnotation);
      }
    }
    catch (Throwable ex) {
      if (logger.isDebugEnabled()) {
        logger.debug("Failed to introspect meta-annotations on " + annotation + ": " + ex);
      }
    }
  }
}

代码示例来源：origin: spring-projects/spring-framework

Annotation[] metaAnnotations = annotationClass.getAnnotations();
if (!ObjectUtils.isEmpty(metaAnnotations)) {
  Set<Annotation> visited = new LinkedHashSet<>();

代码示例来源：origin: spring-projects/spring-framework

/**
 * Factory method to obtain a {@link SourceClass} from a {@link Class}.
 */
SourceClass asSourceClass(@Nullable Class<?> classType) throws IOException {
  if (classType == null) {
    return new SourceClass(Object.class);
  }
  try {
    // Sanity test that we can reflectively read annotations,
    // including Class attributes; if not -> fall back to ASM
    for (Annotation ann : classType.getAnnotations()) {
      AnnotationUtils.validateAnnotation(ann);
    }
    return new SourceClass(classType);
  }
  catch (Throwable ex) {
    // Enforce ASM via class name resolution
    return asSourceClass(classType.getName());
  }
}