FailureHandler (Spring Boot API)

函数接口:
这是一个函数接口, 因此可用作 lambda 表达式或方法引用的赋值目标。
```
@FunctionalInterface
public interface FailureHandler
```
Strategy used to handle launch failures.
从以下版本开始:
1.3.0

- 嵌套类概要
  嵌套类
  修饰符和类型接口说明
  static class FailureHandler.Outcome
  Various outcomes for the handler.
- 字段概要
  字段
  修饰符和类型字段说明
  static FailureHandler NONE
  FailureHandler that always aborts.
- 方法概要
  所有方法实例方法抽象方法
  修饰符和类型方法说明
  FailureHandler.Outcome handle(Throwable failure)
  Handle a run failure.

- 字段详细资料
  - NONE
```
static final FailureHandler NONE
```
    FailureHandler that always aborts.
- 方法详细资料
  - handle
```
FailureHandler.Outcome handle(Throwable failure)
```
    Handle a run failure. Implementations may block, for example to wait until specific files are updated.
    参数:
    failure - the exception
    返回:
    the outcome