SystemProfileValueSource (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- org.springframework.test.annotation.SystemProfileValueSource

所有已实现的接口:
ProfileValueSource
```
public class SystemProfileValueSource
extends Object
implements ProfileValueSource
```
Implementation of ProfileValueSource which uses system properties as the underlying source.
从以下版本开始:
2.0
作者:
Rod Johnson, Sam Brannen

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
`String`	`get(String key)`	Get the profile value indicated by the specified key from the system properties.
`static SystemProfileValueSource`	`getInstance()`	Obtain the canonical instance of this ProfileValueSource.

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

- 方法详细资料
  - getInstance
```
public static final SystemProfileValueSource getInstance()
```
    Obtain the canonical instance of this ProfileValueSource.
  - get
```
public String get(String key)
```
    Get the profile value indicated by the specified key from the system properties.
    指定者:
    get 在接口中 ProfileValueSource
    参数:
    key - the name of the profile value
    返回:
    the String value of the profile value, or null if there is no profile value with that key
    另请参阅:
    System.getProperty(String)