在android中使用Pull解析器读取xml文件，并进行测试

1：读取xml文件的类

public class PullXMLService {

/*
* <persons>
<person id="28">
<name>bo</name>
<age>28</age>
</person>
<person id="29">
<name>xiaohong</name>
<age>21</age>
</person>
</persons>
*/
public List<Person> getPersons(InputStream inputStream) throws Throwable {
List<Person> persons = null;
Person person = null;
XmlPullParser parser = Xml.newPullParser();
parser.setInput(inputStream, "UTF-8");
int eventType = parser.getEventType();    //产生第一个事件
while(eventType != XmlPullParser.END_DOCUMENT) {   //只要不是文档结束事件
switch(eventType) {
case XmlPullParser.START_DOCUMENT:
persons = new ArrayList<Person>();
break;
case XmlPullParser.START_TAG:
String name = parser.getName();        //获取解析器当前指向的元素的名称
if("person".equals(name)) {
person = new Person();
person.setId(new Integer(parser.getAttributeValue(0)));  //得到ID的值
}
if(person != null) {
if("name".equals(name)) {
person.setName(parser.nextText());   //得到name的值，即获取解析器当前指向元素的下一个文本节点的值
} else if("age".equals(name)) {
person.setAge(new Short(parser.nextText()));   //得到age的值
}
}
break;
case XmlPullParser.END_TAG:
if("person".equals(parser.getName())) {   //又到person的时候就结束一次赋值
persons.add(person);
person = null;
}
break;
}
eventType = parser.next();
}
return persons;
}
}

2：测试程序

public void testPullGetPersons() {
PullXMLService pullXMLService = new PullXMLService();
InputStream inputStream = getClass().getClassLoader().getResourceAsStream("test.xml");
try {
List<Person> persons = pullXMLService.getPersons(inputStream);
for(Person person : persons) {
Log.i(TAG, person.toString());
}
} catch (Throwable e) {
e.printStackTrace();
}
}

3：用到的Person类

public class Person {

private Integer id;
private String name;
private Short age;

public Person(){}

public Person(Integer id, String name, Short age) {
super();
this.id = id;
this.name = name;
this.age = 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 Short getAge() {
return age;
}

public void setAge(Short age) {
this.age = age;
}

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

}

4：test.xml文件的内容

<?xml version="1.0" encoding="UTF-8"?>
<persons>
<person id="28">
<name>zhangbo</name>
<age>28</age>
</person>
<person id="29">
<name>xiaohong</name>
<age>21</age>
</person>
</persons>

5：测试结果
在LogCat中打印输出：
Person:[age=28, id=28, name=bo]
Person:[age=21, id=29, name=xiaohong]