[英]XMLEventReader Stax API not able to getName and value for Attribute in JDK 1.8
我正在使用Stax XML EventReader從xml讀取。 我必須在xml中驗證一些我正在使用的標簽。 我能夠從xml成功讀取標記名和字符,但無法讀取屬性名稱和值。 我正在使用jdk 1.8.111
XML:
<xml>
<status request_id="fa844c52-daeb-4d24-920b-581ce2ac1afe1482232642212" response_time="00:00:00:039">
碼:
public static String XMLParseAttribute() throws XMLStreamException, IOException {
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
in = IOUtils.toInputStream(URLResponse, "UTF-8");
eventReader = inputFactory.createXMLEventReader(in);
XMLEvent event = eventReader.nextEvent();
while(eventReader.hasNext())
{
XMLEvent event = eventReader.nextEvent();
if (event.isStartElement()) {
Iterator<Attribute> itr = event.asStartElement().getAttributes();
while(itr.hasNext()){
Attribute attribute = itr.next();
attribute. //get name and value here
}
}
}
//Something like this below
return attribute.getName().toString();
}
請指導我如何使用此XMLEventReader讀取屬性名稱和值。
這是一個簡單的兄弟,簡短而快速的答案是
獲取屬性名稱使用此
String name = attribute.getName().toString();
獲取屬性值使用此
String value = attribute.getValue();
您方法的完整代碼(消除了返回類型),然后重新排列了代碼
public static void XMLParseAttribute() throws XMLStreamException, IOException
{
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
InputStream in = new FileInputStream("input.xml");
XMLEventReader eventReader = inputFactory.createXMLEventReader(in);
XMLEvent event;
while (eventReader.hasNext())
{
event = eventReader.nextEvent();
if (event.isStartElement())
{
String elemntName = event.asStartElement().getName().getLocalPart();
System.out.println(elemntName);
Iterator<Attribute> iterator = event.asStartElement().getAttributes();
while (iterator.hasNext())
{
Attribute attribute = iterator.next();
String value = attribute.getValue();
String name = attribute.getName().toString();
System.out.println("\t" + name + " " + value);
}
}
}
}
這是完整的代碼
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import javax.xml.stream.*;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.XMLEvent;
public class XmlReader
{
public static void main(String[] args) throws XMLStreamException, IOException
{
XMLParseAttribute("input.xml");
}
public static void XMLParseAttribute(String fileName) throws XMLStreamException, IOException
{
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
InputStream in = new FileInputStream(fileName);
XMLEventReader eventReader = inputFactory.createXMLEventReader(in);
XMLEvent event;
while (eventReader.hasNext())
{
event = eventReader.nextEvent();
if (event.isStartElement())
{
String elemntName = event.asStartElement().getName().getLocalPart();
System.out.println(elemntName);
Iterator<Attribute> iterator = event.asStartElement().getAttributes();
while (iterator.hasNext())
{
Attribute attribute = iterator.next();
String value = attribute.getValue();
String name = attribute.getName().toString();
System.out.println("\t" + name + " " + value);
}
}
}
}}
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