pull解析xml

具体结构图参考sax

public class Person {

    private int id;
    private String name;
    private int 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;
    }

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

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

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

解析类

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import com.pull.domian.Person;

/**
 * 主要是使用Pull解析xml
 * 
 * @author zy
 * 
 */
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
     *            编码格式
     * @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节点的内容

        // 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();
        //设置输入流  xml文件
        parser.setInput(inputStream, encode);
        // 获得事件的类型
        int eventType = parser.getEventType();
        while (eventType != XmlPullParser.END_DOCUMENT) {
            switch (eventType) {
            //文档开始
            case XmlPullParser.START_DOCUMENT:
                list = new ArrayList<Person>();
                break;
                //开始节点
            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();
                    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;
    }
}

工具类，获得输入流

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

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

    public static InputStream getXML(String path){
        InputStream inputStream = null;
        try {
            URL url = new URL(path);
            if(url!=null){
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setConnectTimeout(3000);
                connection.setDoInput(true);
                connection.setRequestMethod("GET");
                int code = connection.getResponseCode();
                if(code == 200){
                    inputStream = connection.getInputStream();
                }
            }
        } catch (Exception e) {
            // TODO: handle exception
        }
        return inputStream;
    }

}

测试类

import java.io.InputStream;
import java.util.List;

import com.pull.domian.Person;
import com.pull.http.HttpUtils;
import com.pull.parser.PullXMLTools;

public class Test {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String path = "http://169.254.32.172:8080/myhttp/person.xml";
        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: handle exception
            e.printStackTrace();
        }
    }

}

结果：

Person [id=1, name=张三, age=23]
Person [id=2, name=李四, age=25]