@NonNullApi @NonNullFields

# 程序包 org.springframework.context.expression

Expression parsing support within a Spring application context.

请参阅: 说明

- 类概要
  类 | 说明
  --- | ---
  AnnotatedElementKey | Represent an `AnnotatedElement` on a particular `Class` and is suitable as a key.
  BeanExpressionContextAccessor | EL property accessor that knows how to traverse the beans and contextual objects of a Spring `BeanExpressionContext`.
  BeanFactoryAccessor | EL property accessor that knows how to traverse the beans of a Spring `BeanFactory`.
  BeanFactoryResolver | EL bean resolver that operates against a Spring `BeanFactory`.
  CachedExpressionEvaluator | Shared utility class used to evaluate and cache SpEL expressions that are defined on `AnnotatedElement`.
  CachedExpressionEvaluator.ExpressionKey |
  EnvironmentAccessor | Read-only EL property accessor that knows how to retrieve keys of a Spring `Environment` instance.
  MapAccessor | EL property accessor that knows how to traverse the keys of a standard `Map`.
  MethodBasedEvaluationContext | A method-based `EvaluationContext` that provides explicit support for method-based invocations.
  StandardBeanExpressionResolver | Standard implementation of the `BeanExpressionResolver` interface, parsing and evaluating Spring EL using Spring's expression module.

## 程序包org.springframework.context.expression的说明

Expression parsing support within a Spring application context.