## 类的使用
org.springframework.context.expression.CachedExpressionEvaluator.ExpressionKey

- 使用CachedExpressionEvaluator.ExpressionKey的程序包
  程序包 | 说明
  --- | ---
  org.springframework.context.expression | Expression parsing support within a Spring application context.

- - ### org.springframework.context.expression中CachedExpressionEvaluator.ExpressionKey的使用

    参数类型为CachedExpressionEvaluator.ExpressionKey的org.springframework.context.expression中的方法
    限定符和类型 | 方法和说明
    --- | ---
    `int` | CachedExpressionEvaluator.ExpressionKey.`compareTo(CachedExpressionEvaluator.ExpressionKey other)`

    类型变量类型为CachedExpressionEvaluator.ExpressionKey的org.springframework.context.expression中的方法参数
    限定符和类型 | 方法和说明
    --- | ---
    `protected org.springframework.expression.Expression` | CachedExpressionEvaluator.`getExpression(Map<CachedExpressionEvaluator.ExpressionKey,org.springframework.expression.Expression> cache, AnnotatedElementKey elementKey, String expression)` Return the `Expression` for the specified SpEL value Parse the expression if it hasn't been already.