dom xml解析器java,相同的标签 [英] dom xml parser java, same tags
问题描述
<问题>
< QuestionText> ABC?< / QuestionText>
<选项> A1 - XYZ< / Option>
<选项> A2 - WXY< / Option>
<选项> A2 - HJK< / Option>
< ID> 1< / ID>
< / Question>
<问题>
< QuestionText> ERY?< / QuestionText>
< QuestionText> NNN?< / QuestionText>
< QuestionText> KKKK?< / QuestionText>
< ID> 2< / ID>
< / Question>
输出应该读取...
ID:2有1个QuestionText和3个选项
QuestionText 1:ABC?选项1:A1 - XYZ
选项2:A2 - WXY选项3:A2 - HJK
ID:1有3个QuestionText和0个选项
QuestionText 1.ERY?
QuestionText 2.NNN?
QuestionText 3.KKKK?
我尝试过,但这会给出错误结果
元素eElement =(Element)nNode; (int i = 0; i< eElement.getChildNodes()。getLength(); i ++){
System.out.println(NodeName:+ eElement .getNodeName());
System.out.println(Tag value:+ getTagValue(QuestionText,eElement));
System.out.println(Tag value:+ getTagValue(Option,eElement));
}
private static String getTagValue(String sTag,Element eElement){
NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes();
Node nValue =(Node)nlList.item(0);
return nValue.getNodeValue();
}
在做了一些研究后,我找到了解决方案
元素eElement =(Element)nNode;
getTagValue(QuestionText,eElement);
getTagValue(选项,eElement);
private static void getTagValue(String sTag,Element eElement){
NodeList nlList = eElement.getElementsByTagName(sTag);
System.out.println(nodelist的大小:+ nlList.getLength()); (int i = 0; i< nlList.getLength(); i ++){
NodeList kList = eElement.getElementsByTagName(sTag).item(i).getChildNodes();
Node kValue =(Node)kList.item(0);
System.out.println(Node Value:+ kValue.getNodeValue());
}
}
什么是 getTagValue()
?
无论如何,这是最好的教程(如何读取Java中的XML文件)为DOM中的DOM解析器在我的java。看看这个
这是 getTagValue()
从该链接
private static String getTagValue(String sTag,Element eElement){
NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes();
Node nValue =(Node)nlList.item(0);
return nValue.getNodeValue();
}
i have this xml document which has varying number of same named tags. how can i get the count of the child elements and the value of it.
<Question>
<QuestionText>ABC?</QuestionText>
<Option>A1 - XYZ</Option>
<Option>A2 - WXY</Option>
<Option>A2 - HJK</Option>
<ID>1</ID>
</Question>
<Question>
<QuestionText>ERY?</QuestionText>
<QuestionText>NNN?</QuestionText>
<QuestionText>KKKK?</QuestionText>
<ID>2</ID>
</Question>
The output should read...
ID:2 Has 1 QuestionText and 3 Option QuestionText 1:ABC? Option 1:A1 - XYZ Option 2:A2 - WXY Option 3:A2 - HJK
ID:1 Has 3 QuestionText and 0 option QuestionText 1.ERY? QuestionText 2.NNN? QuestionText 3.KKKK?
I tried, but this gives fault results
Element eElement = (Element) nNode;
for(int i=0;i<eElement.getChildNodes().getLength();i++){
System.out.println("NodeName:"+eElement.getNodeName());
System.out.println("Tag value:"+getTagValue("QuestionText",eElement));
System.out.println("Tag value:"+getTagValue("Option",eElement));
}
private static String getTagValue(String sTag, Element eElement){
NodeList nlList= eElement.getElementsByTagName(sTag).item(0).getChildNodes();
Node nValue = (Node) nlList.item(0);
return nValue.getNodeValue();
}
After doing some research I found the solution
Element eElement = (Element) nNode;
getTagValue("QuestionText",eElement);
getTagValue("Option",eElement);
private static void getTagValue(String sTag, Element eElement){
NodeList nlList = eElement.getElementsByTagName(sTag);
System.out.println("Size of nodelist:"+nlList.getLength());
for(int i=0;i<nlList.getLength();i++){
NodeList kList= eElement.getElementsByTagName(sTag).item(i).getChildNodes();
Node kValue = (Node) kList.item(0);
System.out.println("Node Value:"+kValue.getNodeValue());
}
}
What is the getTagValue()
?
Anyway, it is the best tutorial (How to read XML file in Java) for DOM parser in java for me. Have a look at this
Here is getTagValue()
from that link
private static String getTagValue(String sTag, Element eElement){
NodeList nlList= eElement.getElementsByTagName(sTag).item(0).getChildNodes();
Node nValue = (Node) nlList.item(0);
return nValue.getNodeValue();
}
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