dom4j处理xml文件，读取xml字符串，格式化xml文件

1.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<employees>
    <employee>
        <name>steve</name>
        <sex>m</sex>
        <age>30</age>
    </employee>
</employees>

2.java interface

/**
 * @author huangjing
 * @date 2014-2-13
 * 定义XML文档建立与解析的接口
 */
public interface XmlDocument {
    /** * 建立XML文档 * @param fileName 文件全路径名称 */
    public void createXml(String fileName); 

    /** * 解析XML文档 * @param fileName 文件全路径名称 */
    public void parserXml(String fileName); 

    /***
     * 解析短信发送返回的xml信息,封装成map.
     * @param sms
     * @return
     */
    public Map parserSmsXml(String sms);
}

3.java implements

/**
 * @author huangjing
 * @date 2014-2-13
 */
public class Dom4j implements XmlDocument {

    @Override
    public void createXml(String fileName) {
        Document document = DocumentHelper.createDocument();
        Element employees = document.addElement("employees");
        Element employee = employees.addElement("employee");
        Element name = employee.addElement("name");
        name.setText("dddvip");
        Element sex = employee.addElement("sex");
        sex.setText("f");
        Element age = employee.addElement("age");
        age.setText("29");
        try {
            /** 格式化输出,类型IE浏览一样 */
            OutputFormat format = OutputFormat.createPrettyPrint();  

            Writer fileWriter = new FileWriter(fileName);
            XMLWriter xmlWriter = new XMLWriter(fileWriter,format);
            xmlWriter.write(document);
            xmlWriter.close();
        } catch (IOException e) {
            System.out.println(e.getMessage());
        }
    }

    @Override
    public void parserXml(String fileName) {
        File inputXml = new File(fileName);
        SAXReader saxReader = new SAXReader();
        try {
            Document document = saxReader.read(inputXml);
            Element employees = document.getRootElement();
            for (Iterator i = employees.elementIterator(); i.hasNext();) {
                Element employee = (Element) i.next();
                for (Iterator j = employee.elementIterator(); j.hasNext();) {
                    Element node = (Element) j.next();
                    System.out.println(node.getName() + ":" + node.getText());
                }
            }
        } catch (DocumentException e) {
            System.out.println(e.getMessage());
        }
        System.out.println("dom4j parserXml");
    }

    @Override
    public Map parserSmsXml(String sms) {
        Map map = new HashMap();
//        SAXReader saxReader = new SAXReader();
        try {
            Document document = DocumentHelper.parseText(sms);
            Element returnsms = document.getRootElement();
            for (Iterator i = returnsms.elementIterator(); i.hasNext();) {
//                Element employee = (Element) i.next();
//                for (Iterator j = employee.elementIterator(); j.hasNext();) {
                    Element node = (Element) i.next();
//                    System.out.println(node.getName() + ":" + node.getText());
                    map.put(node.getName(), node.getText());
//                }
            }
        } catch (DocumentException e) {
            e.printStackTrace();
            System.out.println(e.getMessage());
        }
        return map;
    }
}

4.测试parserSmsXml方法

@Test
    public void testParserSmsXml(){
        String sms = "<?xml version='1.0' encoding='utf-8' ?><returnsms>"+
             "<returnstatus>Success</returnstatus>"+
             "<message>ok</message>"+
             "<remainpoint>76904</remainpoint>"+
             "<taskID>5002192</taskID>"+
             "<successCounts>1</successCounts></returnsms>";
        XmlDocument d = new Dom4j();
        Map map = d.parserSmsXml(sms);
        System.out.println(map);
    }