AttachmentFileCreatorStrategy

```
public class AttachmentFileCreatorStrategy
extends java.lang.Object
```
AttachmentFileCreatorStrategy类的目的是此类来读取配置或者设置的存储方式，业务层调用可以屏蔽底层的存储 AttachmentFileFactory生产AttacmentFile,直接依赖此策略类来产生File，策略增加时，需要修改此类 Created by CL on 2017/6/29.

方法
限定符和类型	方法和说明
`AttachmentFileCreator`	`getCreator()`
`static AttachmentFileCreatorStrategy`	`getInstance()`
`void`	`setCreator(AttachmentFileCreator creator)`

public static AttachmentFileCreatorStrategy getInstance()

public void setCreator(AttachmentFileCreator creator)

public AttachmentFileCreator getCreator()

类 AttachmentFileCreatorStrategy