PULL方法解析XML文件

需要用到kxml2-2.2.2.jar包

要解析的XML文件内容：
<?xml version="1.0" encoding="UTF-8"?>

<persons>

<person id="1">

<name>张三</name>

<age>34</age>

</person>

<person id ="2">

<name>李四</name>

<age>24</age>

</person>

</persons>

Person.java文件内容

public class Person {

private int id;
private String name;
private int age;
public Person() {
// TODO Auto-generated constructor stub
}

@Override
public String toString() {
return "Person [id=" + id + ", name=" + name + ", age=" + age + "]";
}

public Person(int id, String name, int age) {
super();
this.id = id;
this.name = name;
this.age = age;
}
public void setId(int id) {
this.id = id;
}
public int getId() {
return id;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setAge(int age) {
this.age = age;
}
public int getAge() {
return age;
}

}

PullXMLTools.java解释工具类

public class PullXMLTools {

public PullXMLTools() {
// TODO Auto-generated constructor stub
}
/**
* @param inputStream 从服务器获取xml文件，以流的形式返回
* @param encode编号格式需与xml文件一致，UTF-8
* @return
* @throws XmlPullParserException
* @throws IOException
*/
public static List<Person> parseXML(InputStream inputStream,String encode) throws XmlPullParserException, IOException{
List<Person> list = null;
Person person = null;//装载解析每一个person节噗的内容
//创建一个xml解析的工厂
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
//获得xml解析类的引用
XmlPullParser parser = factory.newPullParser();
parser.setInput(inputStream,encode);
//获得事件的类型
int eventType = parser.getEventType();
System.out.println("eventType="+eventType);
System.out.println("XmlPullParser.END_DOCUMEN="+ XmlPullParser.END_DOCUMENT);
while(eventType != XmlPullParser.END_DOCUMENT){
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
list = new ArrayList<Person>();
break;
case XmlPullParser.START_TAG:
if("person".equals(parser.getName())){
person = new Person();
//取出属性值
int id = Integer.parseInt(parser.getAttributeValue(0));
person.setId(id);
}else if("name".equals(parser.getName())){
String name = parser.nextText();//获取该节点的内容
person.setName(name);
}else if("age".equals(parser.getName())){
int age = Integer.parseInt(parser.nextText());
person.setAge(age);
}
break;
case XmlPullParser.END_TAG:
if("person".equals(parser.getName())){
list.add(person);
person = null;
}

break;
}
eventType = parser.next();
}
return list;
}
}

HttpUtils.java

/**
* 从服务器获得xml文件返回流
* @author Administrator
*
*/
public class HttpUtils {

public HttpUtils() {
// TODO Auto-generated constructor stub
}
public static InputStream getXML(String path){
System.out.println("进到httpUtils");
InputStream inputStream = null;
try {
URL url = new URL(path);
System.out.println("url="+url.toString());
if(url != null){
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setConnectTimeout(3000);//延时时间3秒
connection.setDoInput(true);// 设置是否从httpUrlConnection读入，默认情况下是true;
connection.setRequestMethod("GET");
int code = connection.getResponseCode();//验证连接服务器是否成功，没有密码时，返回200为成功，有密码时返回401为成功
System.out.println("code="+code);
if(code == 200){
inputStream =  connection.getInputStream();
}
}
} catch (Exception e) {
// TODO: handle exception
}
return inputStream;
}
}

Text.java测试类

public class Text {

public Text() {
// TODO Auto-generated constructor stub
}

/**
* @param args
* @throws IOException
* @throws XmlPullParserException
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String path="http://chinese-1c71864:8080/android_pull_xml/person.xml";
//获取xml内容，返回InputStream 流
InputStream inputStream = HttpUtils.getXML(path);
List<Person> list = null;
try {

list = PullXMLTools.parseXML(inputStream, "utf-8");
for(Person person:list){
System.out.println(person.toString());
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

}