解析 xml 安卓

转载：rowandjj（csdn博客）

效果图如下：

代码如下：

public class PullParse{


public List<Person> doParse(InputStream is) {
List<Person> persons = null ;
Person person = null ;
try {
XmlPullParser parser = Xml.newPullParser();
//设置解析数据源
parser.setInput(is,"utf-8");
//取得事件的类型
int eventType = parser.getEventType();
String eleName = null ;
while(eventType != XmlPullParser.END_DOCUMENT){
switch(eventType){
//文档开始
case XmlPullParser.START_DOCUMENT:
persons = new ArrayList<Person>();
break ;
//元素开始
case XmlPullParser.START_TAG:
eleName = parser.getName();
if("person".equals(eleName)){
person = new Person();
person.id = Integer.parseInt(parser.getAttributeValue(0));
}
else if("name".equals(eleName)){
person.name = parser.nextText();
}
else if("age".equals(eleName)){
person.age = Integer.parseInt(parser.nextText());
}
break ;
//标记结束
case XmlPullParser.END_TAG:
eleName = parser.getName();
if("person".equals(eleName)){
persons.add(person);
}
break ;
}
//手动激活下个事件的触发
eventType = parser.next();
}
} catch (Exception e) {
e.printstacktrace();
}
return persons;
}


}

另一种解析xml代码如下：

public class SaxParse{


/**
* sax解析器
*/
private SAXParser parser;

public SaxParse(){
try {
SAXParserFactory f = SAXParserFactory.newInstance();
parser = f.newSAXParser();
} catch (ParserConfigurationException e) {
e.printstacktrace();
} catch (Exception e) {
e.printstacktrace();
}
}
public List<Person> doParse(InputStream is) {
try {
XmlHandler h = new XmlHandler();
parser.parse(is,h);
return h.getpersons();
} catch (Exception e) {
e.printstacktrace();
}
return null;
}

/**
* 处理器
*/
class XmlHandler extends DefaultHandler{
List<Person> persons = null ;
Person person = null ;

//当前元素名称
private String currEleName;

/**
* 文本节点触发该方法
*/
public void characters(char[] ch,int start,int length)throws SAXException {
String str = new String(ch,start,length);
//name
if("name".equals(currEleName)){
person.name = str ;
}
else if("age".equals(currEleName)){
person.age = Integer.parseInt(str);
}
}


public void endDocument() throws SAXException {
}


/**
* 元素结束
*/
public void endElement(String uri,String localName,String qName)
throws SAXException {
if("person".equals(localName)){
persons.add(person);
}
//将当前元素置空
else if(("name".equals(currEleName)) || ("age".equals(currEleName))){
this.currEleName = "" ;
}
}


/**
* 文档开始事件
*/
public void startDocument() throws SAXException {
persons = new ArrayList<Person>();
}


/**
* 元素开始事件
* localName:本地名
* uri:名字空间
* qName:限定名,前缀 + 本地名
*/
public void startElement(String uri,String qName,
Attributes attributes) throws SAXException {
//实例化person对象
if("person".equals(localName)){
person = new Person();
person.id = Integer.parseInt(attributes.getValue(0));
}
//name元素
else if("name".equals(localName)){
this.currEleName = "name" ;
}
//name元素
else if("age".equals(localName)){
this.currEleName = "age" ;
}
}

public List<Person> getpersons(){
return persons ;
}
}
}

代码有点多，我就不一一贴出了

想看就 点击下载

原文地址：https://www.jb51.cc/xml/294618.html