类 AbstractPropertyResolver

字段详细资料

• logger

  protected final Log logger

构造器详细资料

• AbstractPropertyResolver

  public AbstractPropertyResolver()

方法详细资料

• getConversionService

  public ConfigurableConversionService getConversionService()

  从接口复制的说明: ConfigurablePropertyResolver
  Return the ConfigurableConversionService used when performing type conversions on properties.

  The configurable nature of the returned conversion service allows for the convenient addition and removal of individual Converter instances:

   ConfigurableConversionService cs = env.getConversionService();
   cs.addConverter(new FooConverter());
   

  指定者:

  getConversionService 在接口中 ConfigurablePropertyResolver

  另请参阅:

  PropertyResolver.getProperty(String, Class), ConverterRegistry.addConverter(org.springframework.core.convert.converter.Converter<?, ?>)

• setConversionService

  public void setConversionService​(ConfigurableConversionService conversionService)

  从接口复制的说明: ConfigurablePropertyResolver
  Set the ConfigurableConversionService to be used when performing type conversions on properties.

  Note: as an alternative to fully replacing the ConversionService, consider adding or removing individual Converter instances by drilling into ConfigurablePropertyResolver.getConversionService() and calling methods such as #addConverter.

  指定者:

  setConversionService 在接口中 ConfigurablePropertyResolver

  另请参阅:

  PropertyResolver.getProperty(String, Class), ConfigurablePropertyResolver.getConversionService(), ConverterRegistry.addConverter(org.springframework.core.convert.converter.Converter<?, ?>)

• setPlaceholderPrefix

  public void setPlaceholderPrefix​(String placeholderPrefix)

  Set the prefix that placeholders replaced by this resolver must begin with.

  The default is "${".

  指定者:

  setPlaceholderPrefix 在接口中 ConfigurablePropertyResolver

  另请参阅:

  SystemPropertyUtils.PLACEHOLDER_PREFIX

• setPlaceholderSuffix

  public void setPlaceholderSuffix​(String placeholderSuffix)

  Set the suffix that placeholders replaced by this resolver must end with.

  The default is "}".

  指定者:

  setPlaceholderSuffix 在接口中 ConfigurablePropertyResolver

  另请参阅:

  SystemPropertyUtils.PLACEHOLDER_SUFFIX

• setValueSeparator

  public void setValueSeparator​(@Nullable
                                String valueSeparator)

  Specify the separating character between the placeholders replaced by this resolver and their associated default value, or null if no such special character should be processed as a value separator.

  The default is ":".

  指定者:

  setValueSeparator 在接口中 ConfigurablePropertyResolver

  另请参阅:

  SystemPropertyUtils.VALUE_SEPARATOR

• setIgnoreUnresolvableNestedPlaceholders

  public void setIgnoreUnresolvableNestedPlaceholders​(boolean ignoreUnresolvableNestedPlaceholders)

  Set whether to throw an exception when encountering an unresolvable placeholder nested within the value of a given property. A false value indicates strict resolution, i.e. that an exception will be thrown. A true value indicates that unresolvable nested placeholders should be passed through in their unresolved ${...} form.

  The default is false.

  指定者:

  setIgnoreUnresolvableNestedPlaceholders 在接口中 ConfigurablePropertyResolver

  从以下版本开始:

  3.2

• setRequiredProperties

  public void setRequiredProperties​(String... requiredProperties)

  从接口复制的说明: ConfigurablePropertyResolver
  Specify which properties must be present, to be verified by ConfigurablePropertyResolver.validateRequiredProperties().

  指定者:

  setRequiredProperties 在接口中 ConfigurablePropertyResolver

• validateRequiredProperties

  public void validateRequiredProperties()

  从接口复制的说明: ConfigurablePropertyResolver
  Validate that each of the properties specified by ConfigurablePropertyResolver.setRequiredProperties(java.lang.String...) is present and resolves to a non-null value.

  指定者:

  validateRequiredProperties 在接口中 ConfigurablePropertyResolver

• 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

• 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

  参数:

  key - the property name to resolve

  另请参阅:

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

• getProperty

  public String getProperty​(String key,
                            String defaultValue)

  从接口复制的说明: PropertyResolver
  Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

  指定者:

  getProperty 在接口中 PropertyResolver

  参数:

  key - the property name to resolve

  defaultValue - the default value to return if no value is found

  另请参阅:

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

• getProperty

  public <T> T getProperty​(String key,
                           Class<T> targetType,
                           T defaultValue)

  从接口复制的说明: PropertyResolver
  Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

  指定者:

  getProperty 在接口中 PropertyResolver

  参数:

  key - the property name to resolve

  targetType - the expected type of the property value

  defaultValue - the default value to return if no value is found

  另请参阅:

  PropertyResolver.getRequiredProperty(String, Class)

• getRequiredProperty

  public String getRequiredProperty​(String key)
                             throws IllegalStateException

  从接口复制的说明: PropertyResolver
  Return the property value associated with the given key (never null).

  指定者:

  getRequiredProperty 在接口中 PropertyResolver

  抛出:

  IllegalStateException - if the key cannot be resolved

  另请参阅:

  PropertyResolver.getRequiredProperty(String, Class)

• getRequiredProperty

  public <T> T getRequiredProperty​(String key,
                                   Class<T> valueType)
                            throws IllegalStateException

  从接口复制的说明: PropertyResolver
  Return the property value associated with the given key, converted to the given targetType (never null).

  指定者:

  getRequiredProperty 在接口中 PropertyResolver

  抛出:

  IllegalStateException - if the given key cannot be resolved

• resolvePlaceholders

  public String resolvePlaceholders​(String text)

  从接口复制的说明: PropertyResolver
  Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by PropertyResolver.getProperty(java.lang.String). Unresolvable placeholders with no default value are ignored and passed through unchanged.

  指定者:

  resolvePlaceholders 在接口中 PropertyResolver

  参数:

  text - the String to resolve

  返回:

  the resolved String (never null)

  另请参阅:

  PropertyResolver.resolveRequiredPlaceholders(java.lang.String)

• resolveRequiredPlaceholders

  public String resolveRequiredPlaceholders​(String text)
                                     throws IllegalArgumentException

  从接口复制的说明: PropertyResolver
  Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by PropertyResolver.getProperty(java.lang.String). Unresolvable placeholders with no default value will cause an IllegalArgumentException to be thrown.

  指定者:

  resolveRequiredPlaceholders 在接口中 PropertyResolver

  返回:

  the resolved String (never null)

  抛出:

  IllegalArgumentException - if given text is null or if any placeholders are unresolvable

• resolveNestedPlaceholders

  protected String resolveNestedPlaceholders​(String value)

  Resolve placeholders within the given string, deferring to the value of setIgnoreUnresolvableNestedPlaceholders(boolean) to determine whether any unresolvable placeholders should raise an exception or be ignored.

  Invoked from getProperty(java.lang.String) and its variants, implicitly resolving nested placeholders. In contrast, resolvePlaceholders(java.lang.String) and resolveRequiredPlaceholders(java.lang.String) do not delegate to this method but rather perform their own handling of unresolvable placeholders, as specified by each of those methods.

  从以下版本开始:

  3.2

  另请参阅:

  setIgnoreUnresolvableNestedPlaceholders(boolean)

• convertValueIfNecessary

  @Nullable
  protected <T> T convertValueIfNecessary​(Object value,
                                          @Nullable
                                          Class<T> targetType)

  Convert the given value to the specified target type, if necessary.

  参数:

  value - the original property value

  targetType - the specified target type for property retrieval

  返回:

  the converted value, or the original value if no conversion is necessary

  从以下版本开始:

  4.3.5

• getPropertyAsRawString

  @Nullable
  protected abstract String getPropertyAsRawString​(String key)

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

  参数:

  key - the property name to resolve

  返回:

  the property value or null if none found