Dom4j

FormatXML中：

public int FormatXml(String filename){

int returnValue = 0;
try {
SAXReader saxReader = new SAXReader();
Document document = saxReader.read(new File(filename));
XMLWriter writer = null;
OutputFormat format = OutputFormat.createPrettyPrint();//在浏览器格式化输出
format.setEncoding("GBK");//输出的内容支持中文
writer = new XMLWriter(new FileWriter(new File(filename)),format);
writer.write(document);
writer.close();
returnValue = 1;
} catch (Exception e) {
e.printStackTrace();
}
return returnValue;
}

Reader类中：

public int modityContext(String filename){

int returnValue = 0;
try {
SAXReader saxReader = new SAXReader();
Document document = saxReader.read(new File(filename));
List list = document.selectNodes("/persons/person/@name");
Iterator iter = list.iterator();
while(iter.hasNext()){
Attribute attribute = (Attribute)iter.next();
if(attribute.getValue().equals("小张")){
attribute.setValue("小孙");
}
}
XMLWriter writer = new XMLWriter(new FileWriter(new File(filename)));
writer.write(document);
writer.close();
returnValue = 1;

} catch (Exception e) {
e.printStackTrace();
}
return returnValue;
}

Writer中：

public int createXML(String filename){
Document document = DocumentHelper.createDocument();
Element rootElement = document.addElement("persons");
rootElement.addComment("description");
Element personElement = rootElement.addElement("person");
Element idElement = personElement.addElement("id");
Element nameElement = personElement.addElement("name");
idElement.setText("1");
nameElement.setText("小张");
int returnValue = 0;
try{
XMLWriter writer = new XMLWriter(new FileWriter(new File(filename)));
writer.write(document);
writer.close();
returnValue=1;
}catch(Exception e){
e.printStackTrace();
}return returnValue;
}