android pull解析xml案例

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<persons>
<person id="101">
<name>jame</name>
<age>18</age>
</person>
<person id="102">
<name>Tom</name>
<age>20</age>
</person>
<person id="103">
<name>Jack</name>
<age>16</age>
</person>
<person id="104">
<name>Rose</name>
<age>26</age>
</person>
</persons>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="${relativePackage}.${activityClass}" >

<TextView
android:id="@+id/tv_content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />

<Button
android:id="@+id/bt_read"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="读取xml文件" />

</LinearLayout>

public class Person {
private int id;
private String name;
private int age;

public Person() {
super();
}

public Person(int id, String name, int age) {
super();
this.id = id;
this.name = name;
this.age = age;
}

public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

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

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

}

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;

import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Xml;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;

public class MainActivity extends Activity implements OnClickListener {

private TextView tv_content;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

tv_content = (TextView) findViewById(R.id.tv_content);

findViewById(R.id.bt_read).setOnClickListener(this);

}

@Override
public void onClick(View v) {
try {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {

List<Person> persons = new ArrayList<Person>();
Person person = null;

File sd_file = Environment.getExternalStorageDirectory();
File file = new File(sd_file, "persons.xml");
InputStream inputStream = new FileInputStream(file);
// 获取xml Pull解析器
XmlPullParser pullParser = Xml.newPullParser();
// 解析文件
pullParser.setInput(inputStream, "utf-8");
// 得到事件类型（START_DOCUMENT,END_DOCUMENT,START_TAG, END_TAG, TEXT,
// etc）
int eventType = pullParser.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
switch (eventType) {
case XmlPullParser.START_TAG:
// 获取标签的名称
String tag_name = pullParser.getName();
if ("person".equals(tag_name)) {
person = new Person();
persons.add(person);

// String value = pullParser.getAttributeValue(null,
// "id");
String value = pullParser.getAttributeValue(0);
person.setId(Integer.parseInt(value));
} else if ("name".equals(tag_name)) {
// pullParser.next();
// String text = pullParser.getText();
String text = pullParser.nextText();
person.setName(text);

} else if ("age".equals(tag_name)) {
// pullParser.next();
// String text = pullParser.getText();
String text = pullParser.nextText();
person.setAge(Integer.parseInt(text));
}
break;

default:
break;
}
eventType = pullParser.next();
}
tv_content.setText(persons.toString());
}
} catch (Exception e) {
e.printStackTrace();
}
}
}