java xml封装解析,解析xml几个方法的简单封装

import java.io.File;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;

import org.w3c.dom.NodeList;

/**

*

* @author D_xiao

*

*/

public class AnalysisXmlByDom {

/**

* 功能 ：通过dom的方法解析文档，得到子节点内容

* 参数 :url:文档路径 ; rootElemnt:xml文件根节点; childElement:子节点

* return :子节点内容

* */

public String dom(String url,String rootElement,String clildElement){

String child = null;

try{

File f=new File(url);

DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();

DocumentBuilder builder=factory.newDocumentBuilder();

Document doc = builder.parse(f);

NodeList nl = doc.getElementsByTagName(rootElement);

for (int i=0;i

child = doc.getElementsByTagName(clildElement).item(i).getFirstChild().getNodeValue();

}

}catch(Exception e){

e.printStackTrace();

}

return child;

}

public static void main(String[] args) {

AnalysisXmlByJdom dom = new AnalysisXmlByJdom();

String a = dom.dom("src/first.xml", "value", "no");

System.out.println(a);

}

}

import java.io.File;

import java.util.Iterator;

import org.dom4j.Document;

import org.dom4j.Element;

import org.dom4j.io.SAXReader;

public class AnalysisXmlByDom4j {

/**

* 功能 ：通过jdom的方法解析文档，得到子节点内容

* 参数 :url:文档路径 ; rootElemnt:xml文件根节点; childElement:子节点

* return :子节点内容

* */

public String dom4j(String url,String clildElement){

String child = null;

try {

//使用SAX方式解析xml

SAXReader saxReader = new SAXReader();

//读取first.xml资源

Document doc = saxReader.read(new File(url));

//取得根节点

Element root = doc.getRootElement();

Element foo;

//遍历根节点的所有孩子节点

for (Iterator i = root.elementIterator(); i.hasNext();){

foo = (Element) i.next();

child = foo.elementText(clildElement);

}

} catch (Exception e) {

e.printStackTrace();

}

return child;

}

public static void main(String[] args) {

AnalysisXmlByJdom dom4j = new AnalysisXmlByJdom();

String a = jdom4j.jdom4j("src/first.xml", "value", "no");

System.out.println(a);

}

}

import java.io.File;

import java.util.List;

import org.jdom.Document;

import org.jdom.Element;

import org.jdom.input.SAXBuilder;

public class AnalysisXmlByJdom {

/**

* 功能 ：通过jdom的方法解析文档，得到子节点内容

* 参数 :url:文档路径 ; rootElemnt:xml文件根节点; childElement:子节点

* return :子节点内容

* */

public String jdom(String url,String rootElement,String childElement){

String child = null;

try {

//创建一个SAXBudilder对象

SAXBuilder builder = new SAXBuilder();

//读取first.xml资源

Document doc = builder.build(new File(url));

//获取根元素

Element foo = doc.getRootElement();

//获取根元素下面所有的子元素

List allChildren = foo.getChildren(rootElement);

for(int i=0;i

child = (allChildren.get(i)).getChild(childElement).getText();

}

} catch (Exception e) {

e.printStackTrace();

}

return child;

}

/**

* 测试

* @param args

*/

public static void main(String[] args) {

AnalysisXmlByJdom jdom = new AnalysisXmlByJdom();

String a = jdom.jdom("src/first.xml", "value", "no");

System.out.println(a);

}

}

原文：http://blog.csdn.net/frightingforambition/article/details/25654337