org.springframework.core.env

类 PropertySourcesPropertyResolver

java.lang.Object

org.springframework.core.env.AbstractPropertyResolver

org.springframework.core.env.PropertySourcesPropertyResolver

所有已实现的接口:

ConfigurablePropertyResolver, PropertyResolver

public class PropertySourcesPropertyResolver
extends AbstractPropertyResolver

PropertyResolver implementation that resolves property values against an underlying set of PropertySources.

从以下版本开始:

3.1

作者:

Chris Beams, Juergen Hoeller

另请参阅:

PropertySource, PropertySources, AbstractEnvironment

字段概要

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

logger

构造器概要

构造器

构造器和说明
PropertySourcesPropertyResolver(PropertySources propertySources) Create a new resolver against the given property sources.

方法概要

限定符和类型	方法和说明
boolean	containsProperty(String key) Return whether the given property key is available for resolution, i.e. if the value for the given key is not null.
String	getProperty(String key) Return the property value associated with the given key, or null if the key cannot be resolved.
<T> T	getProperty(String key, Class<T> targetValueType) Return the property value associated with the given key, or null if the key cannot be resolved.
protected <T> T	getProperty(String key, Class<T> targetValueType, boolean resolveNestedPlaceholders)
protected String	getPropertyAsRawString(String key) Retrieve the specified property as a raw String, i.e. without resolution of nested placeholders.
protected void	logKeyFound(String key, PropertySource<?> propertySource, Object value) Log the given key as found in the given PropertySource, resulting in the given value.

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

convertValueIfNecessary, getConversionService, getProperty, getProperty, getRequiredProperty, getRequiredProperty, resolveNestedPlaceholders, resolvePlaceholders, resolveRequiredPlaceholders, setConversionService, setIgnoreUnresolvableNestedPlaceholders, setPlaceholderPrefix, setPlaceholderSuffix, setRequiredProperties, setValueSeparator, validateRequiredProperties

从类继承的方法 java.lang.Object

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

构造器详细资料

PropertySourcesPropertyResolver

public PropertySourcesPropertyResolver(@Nullable
                                       PropertySources propertySources)

Create a new resolver against the given property sources.

参数:

propertySources - the set of PropertySource objects to use

方法详细资料

containsProperty

public boolean containsProperty(String key)

从接口复制的说明: PropertyResolver

Return whether the given property key is available for resolution, i.e. if the value for the given key is not null.

指定者:

containsProperty 在接口中 PropertyResolver

覆盖:

containsProperty 在类中 AbstractPropertyResolver

getProperty

@Nullable
public String getProperty(String key)

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, or null if the key cannot be resolved.

指定者:

getProperty 在接口中 PropertyResolver

覆盖:

getProperty 在类中 AbstractPropertyResolver

参数:

key - the property name to resolve

另请参阅:

PropertyResolver.getProperty(String, String), PropertyResolver.getProperty(String, Class), PropertyResolver.getRequiredProperty(String)

getProperty

@Nullable
public <T> T getProperty(String key,
                                    Class<T> targetValueType)

从接口复制的说明: PropertyResolver

Return the property value associated with the given key, or null if the key cannot be resolved.

参数:

key - the property name to resolve

targetValueType - the expected type of the property value

另请参阅:

PropertyResolver.getRequiredProperty(String, Class)

getPropertyAsRawString

@Nullable
protected String getPropertyAsRawString(String key)

从类复制的说明: AbstractPropertyResolver

Retrieve the specified property as a raw String, i.e. without resolution of nested placeholders.

指定者:

getPropertyAsRawString 在类中 AbstractPropertyResolver

参数:

key - the property name to resolve

返回:

the property value or null if none found

getProperty

@Nullable
protected <T> T getProperty(String key,
                                       Class<T> targetValueType,
                                       boolean resolveNestedPlaceholders)

logKeyFound

protected void logKeyFound(String key,
                           PropertySource<?> propertySource,
                           Object value)

Log the given key as found in the given PropertySource, resulting in the given value.

The default implementation writes a debug log message with key and source. As of 4.3.3, this does not log the value anymore in order to avoid accidental logging of sensitive settings. Subclasses may override this method to change the log level and/or log message, including the property's value if desired.

参数:

key - the key found

propertySource - the PropertySource that the key has been found in

value - the corresponding value

从以下版本开始:

4.3.1