java.lang.Object
- org.springframework.aop.interceptor.ExposeInvocationInterceptor

所有已实现的接口:
Serializable, Advice, Interceptor, MethodInterceptor, Ordered, PriorityOrdered
```
public final class ExposeInvocationInterceptor
extends Object
implements MethodInterceptor, PriorityOrdered, Serializable
```
Interceptor that exposes the current MethodInvocation as a thread-local object. We occasionally need to do this; for example, when a pointcut (e.g. an AspectJ expression pointcut) needs to know the full invocation context.
Don't use this interceptor unless this is really necessary. Target objects should not normally know about Spring AOP, as this creates a dependency on Spring API. Target objects should be plain POJOs as far as possible.
If used, this interceptor will normally be the first in the interceptor chain.
作者:
Rod Johnson, Juergen Hoeller
另请参阅:
序列化表格

字段概要
字段
修饰符和类型字段说明
static Advisor ADVISOR
Singleton advisor for this class.
static ExposeInvocationInterceptor INSTANCE
Singleton instance of this class.
- 从接口继承的字段 org.springframework.core.Ordered
  HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

方法概要

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`static MethodInvocation`	`currentInvocation()`	Return the AOP Alliance MethodInvocation object associated with the current invocation.
`int`	`getOrder()`	Get the order value of this object.
`Object`	`invoke(MethodInvocation mi)`	Implement this method to perform extra treatments before and after the invocation.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - INSTANCE
```
public static final ExposeInvocationInterceptor INSTANCE
```
    Singleton instance of this class.
  - ADVISOR
```
public static final Advisor ADVISOR
```
    Singleton advisor for this class. Use in preference to INSTANCE when using Spring AOP, as it prevents the need to create a new Advisor to wrap the instance.
- 方法详细资料
  - currentInvocation
```
public static MethodInvocation currentInvocation()
                                          throws IllegalStateException
```
    Return the AOP Alliance MethodInvocation object associated with the current invocation.
    返回:
    the invocation object associated with the current invocation
    抛出:
    IllegalStateException - if there is no AOP invocation in progress, or if the ExposeInvocationInterceptor was not added to this interceptor chain
  - invoke
```
public Object invoke(MethodInvocation mi)
              throws Throwable
```
    从接口复制的说明: MethodInterceptor
    Implement this method to perform extra treatments before and after the invocation. Polite implementations would certainly like to invoke Joinpoint.proceed().
    指定者:
    invoke 在接口中 MethodInterceptor
    参数:
    mi - the method invocation joinpoint
    返回:
    the result of the call to Joinpoint.proceed(); might be intercepted by the interceptor
    抛出:
    Throwable - if the interceptors or the target object throws an exception
  - getOrder
```
public int getOrder()
```
    从接口复制的说明: Ordered
    Get the order value of this object.
    Higher values are interpreted as lower priority. As a consequence, the object with the lowest value has the highest priority (somewhat analogous to Servlet load-on-startup values).
    Same order values will result in arbitrary sort positions for the affected objects.
    指定者:
    getOrder 在接口中 Ordered
    返回:
    the order value
    另请参阅:
    Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

修饰符和类型	字段	说明
`static Advisor`	`ADVISOR`	Singleton advisor for this class.
`static ExposeInvocationInterceptor`	`INSTANCE`	Singleton instance of this class.

类 ExposeInvocationInterceptor

字段概要

从接口继承的字段 org.springframework.core.Ordered

方法概要

从类继承的方法 java.lang.Object

字段详细资料

INSTANCE

ADVISOR

方法详细资料

currentInvocation

invoke

getOrder