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java中xml解析器的應用實例

←手機掃碼閱讀     火星人 @ 2014-03-09 , reply:0

xml解析中,通常大家讀文件,解析的時候沒有問題,但是在寫文件的時候常常會碰到亂碼等問題,就我的個人體會是一般只要在寫文件的時候採用文件流的形式,設置好當前的編碼方式,通常就會避免此類問題的發生!下面有兩個簡單的分別是採用jdom和dom4j實現的例子:

1、dom4j

package org.lyj.xml;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import org.dom4j.Document;

import org.dom4j.Element;

import java.io.FileWriter;

import org.dom4j.io.OutputFormat;

import org.dom4j.Namespace;

import org.dom4j.io.XMLWriter;

import java.io.File;

import java.io.IOException;

import org.dom4j.DocumentHelper;

/**

* <p>Title: </p>

*

* <p>Description: </p>

*

* <p>Copyright: Copyright (c) 2005</p>

*

* <p>Company: </p>

*

* @author not attributable

* @version 1.0

*/

public class Dom4jTest {

public void generateDocument() {

org.dom4j.DocumentFactory df = new org.dom4j.DocumentFactory();

Document document = df.createDocument();//.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("錄音機");

firstNameElement.setText("Marcello");

Element lastNameElement = authorElement.addElement("劉");

lastNameElement.setText("Vitaletti");

document.addDocType("catalog",

null, "file://c:/Dtds/catalog.dtd");

document.setXMLEncoding("gb2312");

try {

OutputFormat of = OutputFormat.createCompactFormat();

of.setEncoding("gb2312");

XMLWriter output = new XMLWriter(

new java.io.FileOutputStream(new File("c:/catalog/catalog.xml")),of);

output.write(document);

output.close();

} catch (IOException e) {

System.out.println(e.getMessage());

}

}

public static void main(String[] argv) {

Dom4jTest dom4j = new Dom4jTest();

dom4j.generateDocument();

}

}

2、jdom

package org.lyj.xml;

import org.jdom.output.Format;

import org.jdom.Document;

import java.io.IOException;

import org.jdom.input.SAXBuilder;

import org.jdom.output.XMLOutputter;

import org.jdom.JDOMException;

/**

* <p>Title: </p>

*

* <p>Description: </p>

*

* <p>Copyright: Copyright (c) 2005</p>

*

* <p>Company: </p>

*

* @author not attributable

* @version 1.0

*/

public class JdomWriter {

public JdomWriter() {

}

public void write(){

try {

SAXBuilder builder = new SAXBuilder();

Document doc = builder.build("aa.xml");

XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat().setEncoding("utf-8"));

outputter.output(doc, new java.io.FileOutputStream("bb.xml"));

} catch (JDOMException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

public static void main(String args[]){

JdomWriter jd = new JdomWriter();

jd.write();

}

}


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