程序包 ohos.javax.xml.stream

接口 XMLEventReader

所有超级接口:

Iterator

public interface XMLEventReader
extends Iterator

This is the top level interface for parsing XML Events. It provides the ability to peek at the next event and returns configuration information through the property interface.

从以下版本开始:

1.6

另请参阅:

XMLInputFactory, XMLEventWriter

方法概要

限定符和类型	方法	说明
void	close()	Frees any resources associated with this Reader.
String	getElementText()	Reads the content of a text-only element.
Object	getProperty(String name)	Get the value of a feature/property from the underlying implementation
boolean	hasNext()	Check if there are more events.
XMLEvent	nextEvent()	Get the next XMLEvent
XMLEvent	nextTag()	Skips any insignificant space events until a START_ELEMENT or END_ELEMENT is reached.
XMLEvent	peek()	Check the next XMLEvent without reading it from the stream.

从接口继承的方法 java.util.Iterator

forEachRemaining, next, remove

方法详细资料

nextEvent

XMLEvent nextEvent()
            throws XMLStreamException

Get the next XMLEvent

抛出:

XMLStreamException - if there is an error with the underlying XML.

NoSuchElementException - iteration has no more elements.

另请参阅:

XMLEvent

hasNext

boolean hasNext()

Check if there are more events. Returns true if there are more events and false otherwise.

指定者:

hasNext 在接口中 Iterator

返回:

true if the event reader has more events, false otherwise

peek

XMLEvent peek()
       throws XMLStreamException

Check the next XMLEvent without reading it from the stream. Returns null if the stream is at EOF or has no more XMLEvents. A call to peek() will be equal to the next return of next().

抛出:

XMLStreamException

另请参阅:

XMLEvent

getElementText

String getElementText()
               throws XMLStreamException

Reads the content of a text-only element. Precondition: the current event is START_ELEMENT. Postcondition: The current event is the corresponding END_ELEMENT.

抛出:

XMLStreamException - if the current event is not a START_ELEMENT or if a non text element is encountered

nextTag

XMLEvent nextTag()
          throws XMLStreamException

Skips any insignificant space events until a START_ELEMENT or END_ELEMENT is reached. If anything other than space characters are encountered, an exception is thrown. This method should be used when processing element-only content because the parser is not able to recognize ignorable whitespace if the DTD is missing or not interpreted.

抛出:

XMLStreamException - if anything other than space characters are encountered

getProperty

Object getProperty(String name)
            throws IllegalArgumentException

Get the value of a feature/property from the underlying implementation

参数:

name - The name of the property

返回:

The value of the property

抛出:

IllegalArgumentException - if the property is not supported

close

void close()
    throws XMLStreamException

Frees any resources associated with this Reader. This method does not close the underlying input source.

抛出:

XMLStreamException - if there are errors freeing associated resources