接口 MessageSource

方法详细资料

• getMessage

  String getMessage​(String code,
                    Object[] args,
                    String defaultMessage,
                    Locale locale)

  Try to resolve the message. Return default message if no message was found.

  参数:

  code - the message code to look up, e.g. 'calculator.noRateSet'. MessageSource users are encouraged to base message names on qualified class or package names, avoiding potential conflicts and ensuring maximum clarity.

  args - an array of arguments that will be filled in for params within the message (params look like "{0}", "{1,date}", "{2,time}" within a message), or null if none

  defaultMessage - a default message to return if the lookup fails

  locale - the locale in which to do the lookup

  返回:

  the resolved message if the lookup was successful, otherwise the default message passed as a parameter (which may be null)

  另请参阅:

  getMessage(MessageSourceResolvable, Locale), MessageFormat

• getMessage

  String getMessage​(String code,
                    Object[] args,
                    Locale locale)
             throws NoSuchMessageException

  Try to resolve the message. Treat as an error if the message can't be found.

  参数:

  code - the message code to look up, e.g. 'calculator.noRateSet'. MessageSource users are encouraged to base message names on qualified class or package names, avoiding potential conflicts and ensuring maximum clarity.

  args - an array of arguments that will be filled in for params within the message (params look like "{0}", "{1,date}", "{2,time}" within a message), or null if none

  locale - the locale in which to do the lookup

  返回:

  the resolved message (never null)

  抛出:

  NoSuchMessageException - if no corresponding message was found

  另请参阅:

  getMessage(MessageSourceResolvable, Locale), MessageFormat

• getMessage

  String getMessage​(MessageSourceResolvable resolvable,
                    Locale locale)
             throws NoSuchMessageException

  Try to resolve the message using all the attributes contained within the MessageSourceResolvable argument that was passed in.

  NOTE: We must throw a NoSuchMessageException on this method since at the time of calling this method we aren't able to determine if the defaultMessage property of the resolvable is null or not.

  参数:

  resolvable - the value object storing attributes required to resolve a message (may include a default message)

  locale - the locale in which to do the lookup

  返回:

  the resolved message (never null since even a MessageSourceResolvable-provided default message needs to be non-null)

  抛出:

  NoSuchMessageException - if no corresponding message was found (and no default message was provided by the MessageSourceResolvable)

  另请参阅:

  MessageSourceResolvable.getCodes(), MessageSourceResolvable.getArguments(), MessageSourceResolvable.getDefaultMessage(), MessageFormat