请问如何提取XML

Question

有如下的XML  <?xml version="1.0" ?> 
 <mdc xmlns:HTML="http://www.w3.org/TR/REC-xml">
 <mfh>
  <ffv>32.401 V6.2</ffv> 
  <sn>SubNetwork=ONRM_ROOT_MO_R,SubNetwork=WXRNC02,MeContext=WXAWi6385</sn> 
  <st /> 
  <vn /> 
  <cbt>20091105084500Z</cbt> 
  </mfh>
  <md>
  <neid>
  <neun>WXAWi6385</neun> 
  <nedn>SubNetwork=ONRM_ROOT_MO_R,SubNetwork=WXRNC02,MeContext=WXAWi6385</nedn> 
  <nesw>CXP9012959/1_R6BN03</nesw> 
  </neid>
  <mi>
  <mts>20091105090000Z</mts> 
  <gp>900</gp> 
  <mt>pmAverageRssi</mt> 
  <mt>pmTransmittedCarrierPower</mt> 
  <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=4,Carrier=1</moid> 
  <r>0,0,0,0,0,0,0,0,0,9000,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  <r>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8190,809,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=1,Carrier=1</moid> 
  <r>0,0,0,0,0,0,0,0,0,0,8998,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  <r>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9000,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=5,Carrier=1</moid> 
  <r>0,0,0,0,0,0,0,0,0,8999,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  <r>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8242,758,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=2,Carrier=1</moid> 
  <r>0,0,0,0,0,0,0,0,0,8977,9,3,10,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  <r>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8999,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=6,Carrier=1</moid> 
  <r>0,0,0,0,0,0,0,0,0,8999,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  <r>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8169,831,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=3,Carrier=1</moid> 
  <r>0,0,0,0,0,0,0,0,9000,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  <r>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8169,831,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
  </mi>
  </md>
- <md>
+ <neid>
  <neun>WXAWi6385</neun> 
  <nedn>SubNetwork=ONRM_ROOT_MO_R,SubNetwork=WXRNC02,MeContext=WXAWi6385</nedn> 
  <nesw>CXP9012959/1_R6BN03</nesw> 
  </neid>
- <mi>
  <mts>20091105090000Z</mts> 
  <gp>900</gp> 
  <mt>pmPropagationDelay</mt> 
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=1,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=3,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=5,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=2,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=6,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
- <mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=4,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
  </mi>
  </md>
+ <mff>
  <ts>20091105090000Z</ts> 
  </mff>
  </mdc>想提取里面的部分元素，形成一个txt文件，如下Sector=1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Sector=3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Sector=5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Sector=2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Sector=6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Sector=4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
想问大家如何做比较合理？

Answer 1

.net中好像可以同，java中的没见过

Answer 2

我的思路是dom4j去抓元素，想怎么输出就怎么输出

Answer 3

大约有以下几种方法;
1.DOM
2.SAX
3.DOM4J
4.JDom
各有优势，推荐使用DOM4J。

Answer 4

XML数据源对象DSO是一个微软ActiveX控件，构建在微软IE4以后的版本上。这个对象允许你把一个外部的XML文件或者嵌入HTML文件中的内容提取到HTML页面中。 　　你可以在一个Web页面中使用XML - DSO从一个外部XML文件中选取内容，从嵌入Web页面的XML中提取XML数据，然后使用JavaScript操作这些数据。然而，并不建议在Internet中使用这个对象，因为DSO只能工作在MSIE 4以上的浏览器中，因此这可能会带来一些兼容性问题。 所以，在企业内部网使用XML-DSO是很合适的。 　　开始　　为了初始化XML - DSO对象，我们使用＜OBJECT＞标记。 用于XML-DSO的CLASSID是：　　　　CLSID:550dda30-0541-11d2-9ca9-0060b0ec3d39　　这ID唯一标识XML-DSO。使用下面的代码在一个Web页面中初始化这个控件： 　　＜OBJECT ID="SomeID" CLASSID="CLSID:550dda30-0541-11d2-9ca9-0060b0ec3d39"＞＜/OBJECT＞　　虽然大部分对象需要许多参数与之相关联，但是XML-DSO不需要任何参数。 　　使用一个XML数据岛析取数据　　首先，通过使用＜XML＞标记包含一个XML数据岛。其次，给它分配一个ID，xmldb --以备以后使用。 数据实际上是使用HTML标记：＜ALT＞，＜SPAN＞，＜DIV＞等等提取的。代码列表1中的代码使用了＜SPAN＞标记。datasrc属性指定了你想从中提取数据的那个数据岛。datafld属性指定了你想要的数据的XML标记。所以，第一个＜SPAN＞提取名称，而第二＜SPAN＞提取性别。 　　代码列表1：　　＜!-- example1.htm --＞
　　＜HTML＞
　　＜head＞
　　＜title＞XML DSO-example1.htm＜/title＞
　　＜/head＞
　　＜body bgcolor="#FFFFFF"＞
　　＜XML id="xmldb"＞
　　＜db＞
　　＜member＞
　　＜name＞Premshree Pillai＜name＞
　　＜sex＞male＜/sex＞
　　＜/member＞
　　＜member＞
　　＜name＞Vinod＜/name＞
　　＜sex＞male＜/sex＞
　　＜/member＞
　　＜/db＞
　　＜/XML＞　　＜span datasrc="http://www.blue1000.com/article/#XMLdb" datafld="name"＜＜/span＞
　　＜br＞
　　＜span datasrc="http://www.blue1000.com/article/#XMLdb" datafld="sex"＞＜/span＞　　＜/body＞
　　＜/HTML＞ 　　注意这段代码没有初始化一个XML-DSO对象。这是因为XML数据岛的使用中已经隐式地创建了一个。输出应为： 
　　
　　Premshree Pillai
　　male　　注意在XML数据岛中有两个＜name＞和＜sex＞标记。使用这个方法，你只能提取这些标记中的第一个实例。代码列表2中的代码使用＜TABLE＞标记提取所有的实例： 　　输出将是: 
　　　 Name 　　　　　　　 Sex 
　　　Premshree Pillai 　　male 
　　　Vinod 　　　　　　　 male 　　在代码列表2中，＜TABLE＞标记使用＜TD＞标记内的＜DIV＞标记提取数据。表格将自动重复＜member＞（＜name＞和＜sex＞的母标记）的每个实例。

Answer 5

没看出有什么规律可以提取出你要的txt。
如果是解析XML的，dom4j，网上一搜一麻袋！

Answer 6

我写的一个实例SAXReader reader = new SAXReader();
Document document = null;
try {
document = reader.read(new File(path));
System.out.println("1");
// 根节点
Element root = document.getRootElement();
Iterator<Attribute> attit = root.attributeIterator();
System.out.println("2");
while (attit.hasNext()) {
if ("date".equals(attit.next().getName())) {
// 对象添加
} } // 根节点下面的子节点
Iterator<Element> it = root.elementIterator();
System.out.println("3");

Answer 7

提取的是后半部分？
<mv>
  <moid>ManagedElement=1,NodeBFunction=1,Sector=1,Carrier=1,Prach=1</moid> 
  <r>447,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</r> 
  </mv>
moid 提取 Sector=1, r 提取0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0？
4种解析xml的方式，用dom4j吧
http://developer.51cto.com/art/200903/117512.htm

Answer 8

用dom4j 比较好
下面是一些参考代码import java.io.File;import java.io.IOException;
import org.dom4j.Comment;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Attribute;
import java.util.List;
import java.util.Iterator;import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
import java.io.*;
import java.net.URL;import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;public class XmlDom4J {
public void generateDocument() {
Document document = DocumentHelper.createDocument();
Element catalogElement = document.addElement("catalog");
catalogElement.addComment("An XML Catalog");
catalogElement.addProcessingInstruction("target", "text");
Element journalElement = catalogElement.addElement("journal");
journalElement.addAttribute("title", "XML Zone");
journalElement.addAttribute("publisher", "IBM developerWorks");
Element articleElement = journalElement.addElement("article");
articleElement.addAttribute("level", "Intermediate");
articleElement.addAttribute("date", "December-2001");
Element titleElement = articleElement.addElement("title");
titleElement.setText("Java configuration with XML Schema");
Element authorElement = articleElement.addElement("author");
Element firstNameElement = authorElement.addElement("firstname");
firstNameElement.setText("Marcello");
Element lastNameElement = authorElement.addElement("lastname");
lastNameElement.setText("Vitaletti");
//document.addDocType("catalog", null, "file://c:/Dtds/catalog.dtd");
try {
XMLWriter output = new XMLWriter(new FileWriter(new File(
"c:/catalog/catalog.xml")));
output.write(document);
output.close();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
public void init()
{
Document document=DocumentHelper.createDocument();
Element catalogElement=document.addElement("optionsList");
Element ipel=catalogElement.addElement("ip");
ipel.addAttribute("iptype", "ipv4");
Element url=catalogElement.addElement("url");
Element url1=url.addElement("url1");
url1.addAttribute("action", "address");

Element url2=url.addElement("url2");
url2.addAttribute("action1", "address1");
url1.setText("url1");
url2.addText("xxx.xxaction");
Element aname=catalogElement.addElement("aname");
ipel.addText("192.168.10.1");
//url1.addText("xxx.xxaction");
aname.addText("group manager");

try {
OutputFormat format = OutputFormat.createPrettyPrint();
format.setEncoding("UTF-8");
XMLWriter out=new XMLWriter(new FileWriter(new File("c:/catalog/catalog2.xml")),format);

out.write(document);
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.println(e.getMessage());
}


}
public void getList()
{
try {
SAXReader reader=new SAXReader();
reader.setEncoding("UTF-8");
Document document=reader.read(new File("c:/catalog/catalog2.xml"));

List list=document.selectNodes("optionsList");
System.out.println(list.size());
Iterator it=list.iterator();
while(it.hasNext())
{
Element el=(Element)it.next();
Iterator iter=el.elementIterator("ip");
if(iter.hasNext())
{
Element ipElement=(Element)iter.next();
ipElement.setText("192.168.1.1");
Attribute iptype= ipElement.attribute("iptype");

String ipStr=iptype.getValue();
iptype.setValue("ipv6");
System.out.println(ipStr);
ipStr=iptype.getValue();
System.out.println(ipStr);
}
Iterator iter2=el.elementIterator("url");
if(iter2.hasNext())
{
Element ipElement=(Element)iter2.next();
Iterator url1=ipElement.elementIterator("url1");
Iterator url2=ipElement.elementIterator("url2");
if(url1.hasNext())
{
Element u1=(Element)url1.next();
System.out.println(u1.attribute("action").getValue());
System.out.println(u1.getText());

}
if(url2.hasNext())
{
Element u2=(Element)url2.next();
System.out.println(u2.attribute("action1").getValue());
System.out.println(u2.getText());

}


ipElement.setText("user.getlist.action");
}
Iterator iter3=el.elementIterator("aname");
if(iter3.hasNext())
{
Element ipElement=(Element)iter3.next();
ipElement.setText("user manager");
} }
OutputFormat format = OutputFormat.createPrettyPrint();
format.setEncoding("UTF-8");
XMLWriter output = new XMLWriter(new FileWriter(new File(
"c:/catalog/catalog2.xml")),format);
output.write(document);
output.close();

} catch (Exception e) {
System.out.println(e.getMessage());
}
}
public static void main(String[] argv) {
XmlDom4J dom4j = new XmlDom4J();
//dom4j.generateDocument();

//dom4j.modifyDocument(new File("c:/catalog/catalog.xml"));
//dom4j.modifyDocument(new File("D:/workspace/archPro/WebRoot/WEB-INF/web.xml"));
dom4j.init();
dom4j.getList();
} public void modifyDocument(File inputXml) {
try {
SAXReader saxReader = new SAXReader();
Document document = saxReader.read(inputXml);
List list = document.selectNodes("//article/@level" );
System.out.println(list.size());
Iterator iter = list.iterator();
while (iter.hasNext()) {
Attribute attribute = (Attribute) iter.next();
if (attribute.getValue().equals("Intermediate"))
attribute.setValue("Introductory");
}
list = document.selectNodes("//article/@date");
iter = list.iterator();
while (iter.hasNext()) {
Attribute attribute = (Attribute) iter.next();
if (attribute.getValue().equals("December-2001"))
attribute.setValue("October-2002");
}
list = document.selectNodes("//article");
iter = list.iterator();
while (iter.hasNext()) {
Element element = (Element) iter.next();
Iterator iterator = element.elementIterator("title");
while (iterator.hasNext()) {
Element titleElement = (Element) iterator.next();
if (titleElement.getText().equals(
"Java configuration with XML      Schema"))
titleElement
.setText("Create flexible and extensible XML schema");
}
}
list = document.selectNodes("//article/author");
iter = list.iterator();
while (iter.hasNext()) {
Element element = (Element) iter.next();
Iterator iterator = element.elementIterator("firstname");
while (iterator.hasNext()) {
Element firstNameElement = (Element) iterator.next();
if (firstNameElement.getText().equals("Marcello"))
firstNameElement.setText("Ayesha");
}
}
list = document.selectNodes("//article/author");
iter = list.iterator();
while (iter.hasNext()) {
Element element = (Element) iter.next();
Iterator iterator = element.elementIterator("lastname");
while (iterator.hasNext()) {
Element lastNameElement = (Element) iterator.next();
if (lastNameElement.getText().equals("Vitaletti"))
lastNameElement.setText("Malik");
}
}
XMLWriter output = new XMLWriter(new FileWriter(new File(
"c:/catalog/catalog.xml")));
output.write(document);
output.close();
} catch (DocumentException e) {
System.out.println(e.getMessage());
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
}

Answer 9

读取xml文件的代码很多，在用这些代码写入txt文件。

Answer 10

外加一个：casetor 可以解析xml为对象，也可以将对象解析为xml
http://www.castor.org/

Answer 11

Google 一下解析 XML，一大堆。。不过我还是觉得 xmlBeans最好用。。

Answer 12

推荐dom4j解析，比较好用一点。

Answer 13

dom4j
jdom
随便你选择