ServletComponentScan (Spring Boot API)

```
@Target(TYPE)
@Retention(RUNTIME)
@Documented
@Import(org.springframework.boot.web.servlet.ServletComponentScanRegistrar.class)
public @interface ServletComponentScan
```
Enables scanning for Servlet components (filters, servlets, and listeners). Scanning is only performed when using an embedded web server.
Typically, one of value, basePackages, or basePackageClasses should be specified to control the packages to be scanned for components. In their absence, scanning will be performed from the package of the class with the annotation.
从以下版本开始:
1.3.0
另请参阅:
WebServlet, WebFilter, WebListener

可选元素概要

可选元素
修饰符和类型	可选元素	说明
`Class<?>[]`	`basePackageClasses`	Type-safe alternative to `basePackages()` for specifying the packages to scan for annotated servlet components.
`String[]`	`basePackages`	Base packages to scan for annotated servlet components.
`String[]`	`value`	Alias for the `basePackages()` attribute.

- 元素详细资料
  - value
```
@AliasFor("basePackages")
String[] value
```
    Alias for the basePackages() attribute. Allows for more concise annotation declarations e.g.: @ServletComponentScan("org.my.pkg") instead of @ServletComponentScan(basePackages="org.my.pkg").
    返回:
    the base packages to scan
    默认值:
    {}
- - basePackages
```
@AliasFor("value")
String[] basePackages
```
    Base packages to scan for annotated servlet components. value() is an alias for (and mutually exclusive with) this attribute.
    Use basePackageClasses() for a type-safe alternative to String-based package names.
    返回:
    the base packages to scan
    默认值:
    {}
- - basePackageClasses
```
Class<?>[] basePackageClasses
```
    Type-safe alternative to basePackages() for specifying the packages to scan for annotated servlet components. The package of each class specified will be scanned.
    返回:
    classes from the base packages to scan
    默认值:
    {}