程序包 cn.taketoday.core.env

类 StandardEnvironment

java.lang.Object

cn.taketoday.core.env.AbstractEnvironment

cn.taketoday.core.env.StandardEnvironment

所有已实现的接口:

ConfigurableEnvironment, ConfigurablePropertyResolver, Environment, IterablePropertyResolver, PropertyResolver, Iterable<String>

public class StandardEnvironment
extends AbstractEnvironment

Environment implementation suitable for use in 'standard' (i.e. non-web) applications.

In addition to the usual functions of a ConfigurableEnvironment such as property resolution and profile-related operations, this implementation configures two default property sources, to be searched in the following order:

• system properties
• system environment variables

That is, if the key "xyz" is present both in the JVM system properties as well as in the set of environment variables for the current process, the value of key "xyz" from system properties will return from a call to environment.getProperty("xyz"). This ordering is chosen by default because system properties are per-JVM, while environment variables may be the same across many JVMs on a given system. Giving system properties precedence allows for overriding of environment variables on a per-JVM basis.

These default property sources may be removed, reordered, or replaced; and additional property sources may be added using the PropertySources instance available from AbstractEnvironment.getPropertySources(). See ConfigurableEnvironment Javadoc for usage examples.

See SystemEnvironmentPropertySource javadoc for details on special handling of property names in shell environments (e.g. Bash) that disallow period characters in variable names.

从以下版本开始:

4.0

作者:

Chris Beams

另请参阅:

• ConfigurableEnvironment
• SystemEnvironmentPropertySource

字段概要

字段

修饰符和类型	字段	说明
static final String	SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME	System environment property source name: "systemEnvironment".
static final String	SYSTEM_PROPERTIES_PROPERTY_SOURCE_NAME	JVM system properties property source name: "systemProperties".

从接口继承的字段 cn.taketoday.core.env.Environment

DEFAULT_PROFILE, ENVIRONMENT_BEAN_NAME, KEY_ACTIVE_PROFILES, KEY_DEFAULT_PROFILES, KEY_IGNORE_GETENV, SYSTEM_ENVIRONMENT_BEAN_NAME, SYSTEM_PROPERTIES_BEAN_NAME

构造器概要

构造器

限定符	构造器	说明
	StandardEnvironment()	Create a new StandardEnvironment instance.
protected	StandardEnvironment(PropertySources propertySources)	Create a new StandardEnvironment instance with a specific PropertySources instance.

方法概要

修饰符和类型	方法	说明
protected void	customizePropertySources(PropertySources propertySources)	Customize the set of property sources with those appropriate for any standard Java environment: "systemProperties" "systemEnvironment"

从类继承的方法 cn.taketoday.core.env.AbstractEnvironment

acceptsProfiles, addActiveProfile, addRequiredProperties, containsProperty, createPropertyResolver, doGetActiveProfiles, doGetActiveProfilesProperty, doGetDefaultProfiles, doGetDefaultProfilesProperty, getActiveProfiles, getConversionService, getDefaultProfiles, getProperty, getProperty, getProperty, getProperty, getPropertyResolver, getPropertySources, getRequiredProperty, getRequiredProperty, getReservedDefaultProfiles, getSystemEnvironment, getSystemProperties, isProfileActive, iterator, merge, resolvePlaceholders, resolveRequiredPlaceholders, setActiveProfiles, setConversionService, setDefaultProfiles, setIgnoreUnresolvableNestedPlaceholders, setPlaceholderPrefix, setPlaceholderSuffix, setRequiredProperties, setValueSeparator, suppressGetenvAccess, toString, validateProfile, validateRequiredProperties

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 cn.taketoday.core.env.Environment

matchesProfiles

从接口继承的方法 java.lang.Iterable

forEach, spliterator

从接口继承的方法 cn.taketoday.core.env.PropertyResolver

getFlag, getFlag

字段详细资料

SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME

public static final String SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME

System environment property source name: "systemEnvironment".

另请参阅:

• 常量字段值

SYSTEM_PROPERTIES_PROPERTY_SOURCE_NAME

public static final String SYSTEM_PROPERTIES_PROPERTY_SOURCE_NAME

JVM system properties property source name: "systemProperties".

另请参阅:

• 常量字段值

构造器详细资料

StandardEnvironment

public StandardEnvironment()

Create a new StandardEnvironment instance.

StandardEnvironment

protected StandardEnvironment(PropertySources propertySources)

Create a new StandardEnvironment instance with a specific PropertySources instance.

参数:

propertySources - property sources to use

方法详细资料

customizePropertySources

protected void customizePropertySources(PropertySources propertySources)

Customize the set of property sources with those appropriate for any standard Java environment:

• "systemProperties"
• "systemEnvironment"

Properties present in "systemProperties" will take precedence over those in "systemEnvironment".

覆盖:

customizePropertySources 在类中 AbstractEnvironment

另请参阅:

• AbstractEnvironment.customizePropertySources(PropertySources)
• AbstractEnvironment.getSystemProperties()
• AbstractEnvironment.getSystemEnvironment()