SpringProperties (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- org.springframework.core.SpringProperties

```
public final class SpringProperties
extends Object
```
Static holder for local Spring properties, i.e. defined at the Spring library level.
Reads a spring.properties file from the root of the Spring library classpath, and also allows for programmatically setting properties through setProperty(java.lang.String, java.lang.String). When checking a property, local entries are being checked first, then falling back to JVM-level system properties through a System.getProperty(java.lang.String) check.
This is an alternative way to set Spring-related system properties such as "spring.getenv.ignore" and "spring.beaninfo.ignore", in particular for scenarios where JVM system properties are locked on the target platform (e.g. WebSphere). See setFlag(java.lang.String) for a convenient way to locally set such flags to "true".
从以下版本开始:
3.2.7
作者:
Juergen Hoeller
另请参阅:
AbstractEnvironment.IGNORE_GETENV_PROPERTY_NAME, CachedIntrospectionResults.IGNORE_BEANINFO_PROPERTY_NAME, StatementCreatorUtils.IGNORE_GETPARAMETERTYPE_PROPERTY_NAME, ContextCache.MAX_CONTEXT_CACHE_SIZE_PROPERTY_NAME

方法概要

所有方法静态方法具体方法
修饰符和类型	方法	说明
`static boolean`	`getFlag(String key)`	Retrieve the flag for the given property key.
`static String`	`getProperty(String key)`	Retrieve the property value for the given key, checking local Spring properties first and falling back to JVM-level system properties.
`static void`	`setFlag(String key)`	Programmatically set a local flag to "true", overriding an entry in the `spring.properties` file (if any).
`static void`	`setProperty(String key, String value)`	Programmatically set a local property, overriding an entry in the `spring.properties` file (if any).

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
  - setProperty
```
public static void setProperty(String key,
                               @Nullable
                               String value)
```
    Programmatically set a local property, overriding an entry in the spring.properties file (if any).
    参数:
    key - the property key
    value - the associated property value, or null to reset it
  - getProperty
```
@Nullable
public static String getProperty(String key)
```
    Retrieve the property value for the given key, checking local Spring properties first and falling back to JVM-level system properties.
    参数:
    key - the property key
    返回:
    the associated property value, or null if none found
  - setFlag
```
public static void setFlag(String key)
```
    Programmatically set a local flag to "true", overriding an entry in the spring.properties file (if any).
    参数:
    key - the property key
  - getFlag
```
public static boolean getFlag(String key)
```
    Retrieve the flag for the given property key.
    参数:
    key - the property key
    返回:
    true if the property is set to "true", false otherwise