org.springframework.core.env

类 StandardEnvironment

java.lang.Object

org.springframework.core.env.AbstractEnvironment

org.springframework.core.env.StandardEnvironment

所有已实现的接口:

ConfigurableEnvironment, ConfigurablePropertyResolver, Environment, PropertyResolver

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 MutablePropertySources 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:

3.1

作者:

Chris Beams

另请参阅:

ConfigurableEnvironment, SystemEnvironmentPropertySource, org.springframework.web.context.support.StandardServletEnvironment

字段概要

字段

限定符和类型	字段和说明
static String	SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME System environment property source name: "systemEnvironment"
static String	SYSTEM_PROPERTIES_PROPERTY_SOURCE_NAME JVM system properties property source name: "systemProperties"

从类继承的字段 org.springframework.core.env.AbstractEnvironment

ACTIVE_PROFILES_PROPERTY_NAME, DEFAULT_PROFILES_PROPERTY_NAME, IGNORE_GETENV_PROPERTY_NAME, logger, RESERVED_DEFAULT_PROFILE_NAME

构造器概要

构造器

构造器和说明
StandardEnvironment()

方法概要

限定符和类型	方法和说明
protected void	customizePropertySources(MutablePropertySources 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".

从类继承的方法 org.springframework.core.env.AbstractEnvironment

acceptsProfiles, addActiveProfile, containsProperty, doGetActiveProfiles, doGetDefaultProfiles, getActiveProfiles, getConversionService, getDefaultProfiles, getProperty, getProperty, getProperty, getProperty, getPropertySources, getRequiredProperty, getRequiredProperty, getReservedDefaultProfiles, getSystemEnvironment, getSystemProperties, isProfileActive, 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

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()

方法详细资料

customizePropertySources

protected void customizePropertySources(MutablePropertySources 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(MutablePropertySources), AbstractEnvironment.getSystemProperties(), AbstractEnvironment.getSystemEnvironment()