public static List<Person> getPersons(InputStream xml) throws
Exception{
List<Person> persons = null;
XmlPullParser
pullParser= XmlPullParserFactory.newInstance().newPullParser();
//XmlPullParser pullParser=Xml.newPullParser();
pullParser.setInput(xml,
"UTF-8");//为Pull解析器设置要解析的XML数据
int event =
pullParser.getEventType();
Person person =
null;
while(event!=XmlPullParser.END_DOCUMENT)
{
switch(event)
{
case
XmlPullParser.START_DOCUMENT:
persons = new
ArrayList<Person>();
break;
case
XmlPullParser.START_TAG:
if("person".equals(pullParser.getName())){
int
id = new Integer(pullParser.getAttributeValue(0));
person = new
Person();
person.setId(id);
}
if("name".equals(pullParser.getName())){
String
name=pullParser.nextText();
person.setName(name);
}
if("age".equals(pullParser.getName())){
int
age = new
Integer(pullParser.nextText());
person.setAge(age);
}
break;
case
XmlPullParser.END_TAG:
if("person".equals(pullParser.getName())){
persons.add(person);
person
= null;
}
break;
}
event=pullParser.next();
//指针指向下一个节点
}
//首先把XML数据读到char[]中然后开始解析，一个一个的字符往后读取，比对语法是否符合XML语法
return
persons;
}
public static void save(List<Person>
persons,OutputStream out) throws Exception{
XmlSerializer serializer =
Xml.newSerializer();
serializer.setOutput(out,"UTF-8");
serializer.startDocument("UTF-8",
true);
serializer.startTag(null, "persons");
for(Person person :
persons){
serializer.startTag(null,
"person");
serializer.attribute(null, "id",
person.getId().toString());
serializer.startTag(null,
"name");
serializer.text(person.getName());
serializer.endTag(null,
"name");
serializer.startTag(null,
"age");
serializer.text(person.getAge().toString());
serializer.endTag(null,
"age");
serializer.endTag(null,
"person");
}
serializer.endTag(null,
"persons");
serializer.endDocument();
out.flush();
out.close();
}
public class Person {
@Override
public String toString()
{
return "Person [id=" + id + ", name=" + name + ", age=" + age +
"]";
}
private Integer id;
private String name;
private
Integer age;
public Integer getId() {
return id;
}
public void
setId(Integer id) {
this.id = id;
}
public String getName()
{
return name;
}
public void setName(String name) {
this.name
= name;
}
public Integer getAge() {
return age;
}
public
void setAge(Integer age) {
this.age = age;
}
public Person(Integer
id, String name, Integer age) {
this.id = id;
this.name =
name;
this.age = age;
}
public Person(){
}
}
public class PersonServiceTest extends AndroidTestCase {
private static
final String TAG= "PersonServiceTest";
public void testPersons() throws
Exception{
InputStream xml =
this.getClass().getClassLoader().getResourceAsStream("person.xml");
List<Person>
persons = PersonService.getPersons(xml);
for(Person person :
persons){
Log.i(TAG, person.toString());
}
}
public void
testSaveXml() throws Exception{
List<Person> persons = new
ArrayList<Person>();
persons.add(new
Person(1,"zhangxx",80));
persons.add(new
Person(4,"zhlili",80));
persons.add(new Person(8,"xiaoxiao",5));
File
xmlfile = new File(getContext().getFilesDir(),"zhao.xml");
FileOutputStream
outStream = new FileOutputStream(xmlfile);
PersonService.save(persons,
outStream);
}
}