先上效果图： 
好久不碰xml解析，在此写了个小的demo来温习一下解析XML，其中我用的Pull来解析XML，XML文件存放在tomcat服务器，服务器端采用SSH框架编码完成，由安卓端通过http的GET请求获取到xml，之后就是解析啦，解析完将所有数据存放在实体类中，接下来就是将数据显示在ListView上面了。demo虽小，但其中遇到一些问题卡住我半天，下面就来看看吧。服务器的搭建比较简单了，其中在action中处理安卓端的get请求，将person.xml以字节流的方式返回给安卓端.
action中代码：
//获取xml数据 public String getXmlData(){ try { request.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset:UTF-8"); response.setCharacterEncoding("UTF-8"); List<Person> persons=personBiz.getXmlData(); /*for (Person person : persons) { System.out.PRintln(person); }*/ request.setAttribute("persons", persons); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return "success"; }dao层接口代码：
//查询所有xml数据 public List<Person> getXmlData();dao层实现类代码：
@Override public List<Person> getXmlData() { List<Person> lists=getsession().createQuery("from Person").list(); return lists; }struts.xml中配置action:
<action name="getXmlData" class="personAction" method="getXmlData"> <result name="success">/list.jsp</result> </action>服务器端页面请求:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><center> <a href="getXmlData.action">解析XML数据</a></center></body></html>服务器端页面返回结果：
<?xml version="1.0" encoding="UTF-8" ?><%@ page language="java" contentType="text/xml; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><persons><c:forEach var="p" items="${persons}"> <person pid="${p.pid}"> <pname>${p.pname}</pname> <page>${p.page}</page> </person> </c:forEach></persons>服务器端运行结果： 
安卓端http的GET请求获取到xml，并解析，将数据存放到实体类中：
package com.example.android_parsexml;import android.app.ProgressDialog;import android.os.AsyncTask;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.util.Xml;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.TextView;import org.xmlpull.v1.XmlPullParser;import org.xmlpull.v1.XmlPullParserException;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity { private ListView lv_main_list; private List<Person> personList = new ArrayList<Person>(); private ProgressDialog progressDialog; private MyAdapter myAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //获取listview lv_main_list = (ListView) findViewById(R.id.lv_main_list); //实例化进度条对话框 progressDialog = new ProgressDialog(this); progressDialog.setMessage("亲，正在玩命加载中哦！"); //实例化适配器 myAdapter = new MyAdapter(); //设置适配器 lv_main_list.setAdapter(myAdapter); } //自己写个适配器类 class MyAdapter extends BaseAdapter{ @Override public int getCount() { return personList.size(); } @Override public Object getItem(int i) { return personList.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(int i, View view, ViewGroup viewGroup) { LinearLayout layout=new LinearLayout(MainActivity.this); layout.setOrientation(LinearLayout.HORIZONTAL); TextView textViewPid=new TextView(MainActivity.this); textViewPid.setText(personList.get(i).getPid() +"/t/t/t/t"+""); TextView textViewPname=new TextView(MainActivity.this); textViewPname.setText(personList.get(i).getPname()+"/t/t/t/t"); TextView textViewPage=new TextView(MainActivity.this); textViewPage.setText(personList.get(i).getPage() +"/t/t/t/t"+ ""); layout.addView(textViewPid); layout.addView(textViewPname); layout.addView(textViewPage); return layout; } } //获取xml数据 public void getXML(View view) { new MyTask().execute(); } //通过异步任务类获取数据 class MyTask extends AsyncTask { private Person person; //准备执行 @Override protected void onPreExecute() { super.onPreExecute(); progressDialog.show(); } @Override protected Object doInBackground(Object[] params) { //获取网络路径 String path = "http://192.168.43.170:8080/S2SH/getXmlData.action"; //实例化URL try { URL url = new URL(path); //获取连接对象 HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); //设置请求方式 httpURLConnection.setRequestMethod("GET"); //设置连接超时 httpURLConnection.setConnectTimeout(5000); //获取响应码 int code = httpURLConnection.getResponseCode(); if (code == 200) { //响应成功,获取服务器返回过来的数据 InputStream is = httpURLConnection.getInputStream(); //解析PULL SAX 基于事件驱动 XmlPullParser xpp=Xml.newPullParser(); try { xpp.setInput(is,"UTF-8"); int type=xpp.getEventType(); while(type!=XmlPullParser.END_DOCUMENT){ switch (type) { case XmlPullParser.START_TAG: //获取开始标签的名字 String startTagName=xpp.getName(); if("person".equals(startTagName)){ person = new Person(); //获取name属性值 String pid=xpp.getAttributeValue(0); person.setPid(Integer.parseInt(pid)); }else if("pname".equals(startTagName)){ //获取sex的文本值 String pname=xpp.nextText(); person.setPname(pname); }else if("page".equals(startTagName)){ //获取sex的文本值 String page=xpp.nextText(); person.setPage(Integer.parseInt(page)); } break; case XmlPullParser.END_TAG: //获取到结束标签的名字 String endTagName=xpp.getName(); if("person".equals(endTagName)){ personList.add(person); } break; } type=xpp.next(); } } catch (XmlPullParserException e) { e.printStackTrace(); } } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return personList; } @Override protected void onPostExecute(Object o) { super.onPostExecute(o); //通知适配器发生改变 myAdapter.notifyDataSetChanged(); //取消进度条对话框 progressDialog.cancel(); } }}layout.xml代码：
<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.android_parsexml.MainActivity"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="获取XML数据" android:onClick="getXML" /> <ListView android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="40dp" android:id="@+id/lv_main_list" ></ListView></RelativeLayout>实体类代码：
package com.example.android_parsexml;public class Person { private int pid; private String pname; private int page; public int getPid() { return pid; } public void setPid(int pid) { this.pid = pid; } public String getPname() { return pname; } public void setPname(String pname) { this.pname = pname; } public int getPage() { return page; } public void setPage(int page) { this.page = page; } public Person() { super(); } public Person(String pname, int page) { super(); this.pname = pname; this.page = page; } @Override public String toString() { return "Person [pid=" + pid + ", pname=" + pname + ", page=" + page + "]"; }}mainfests 添加权限：
<uses-permission android:name="android.permission.INTERNET"></uses-permission>新闻热点
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