Android之解析XML实例

1、以下是使用SSH框架生成xml

一、第一步写一个实体类（Person）

package com.zking.entity;

public class Person {
    private int pid;
    private String pname;
    private int page;


    public Person() {
        super();
    }
    public Person(String pname, int page) {
        super();

        this.pname = pname;
        this.page = 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;
    }


    @Override
    public String toString() {
        return "Person [pid=" + pid + ", pname=" + pname + ", page=" + page + "]";
    }


}

二、第二 配置Struts配置文件

    
        
        
                /login.jsp
            

        
     

 

三、展示数据库数据（xml）

<%@ page language="java" contentType="text/xml; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

        
         ${p.pname}
            ${p.page}
        
    

2、以下是使用pull解析xml文件将会把数据展示到手机页面

用listview展示数据

MainActivity

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 java.io.BufferedReader;
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 {

    List PersonList=new ArrayList<>();
    private ListView listview;
    private ProgressDialog progressDialog;
    private Myadater myadater;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //实例化进度条对话框
        progressDialog = new ProgressDialog(this);
        progressDialog.setMessage("拼命加载中......");

        listview = (ListView) findViewById(R.id.listview);
    //实例化适配器
        myadater = new Myadater();
        listview.setAdapter(myadater);


    }

    class Myadater 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()+"");

            TextView textViewName=new TextView(MainActivity.this);
            textViewName.setText(PersonList.get(i).getPname());


            TextView textViewsex=new TextView(MainActivity.this);
            textViewsex.setText(PersonList.get(i).getPage()+"");
            layout.addView(textViewpid);
            layout.addView(textViewName);
            layout.addView(textViewsex);
            return layout;
        }
    }

    public void content(View view){
      new MyTask().execute();
    }

    class MyTask extends AsyncTask{

        private Person person;

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            progressDialog.show();

        }

        @Override
        protected Object doInBackground(Object[] objects) {
            //获取网络数据XML
            //01.确定网络路径http://localhost:8080/mySSH/personActionadd.action
            String path="http://192.168.23.1:8080/mySSH/personActionaddperson.action";

            try {
                //02.实例化URL
                URL url=new URL(path);
                //03获取连接对象
             HttpURLConnection connection= (HttpURLConnection) url.openConnection();
                //04.设置请求方式
                connection.setRequestMethod("GET");
                //05.设置请求连接超时的时间(优化)
                connection.setConnectTimeout(5000);
                //06.获取响应码，结果码
                int code=connection.getResponseCode();
              if (code==200){
               //07.获取服务器返回过来的数据
                  InputStream is=connection.getInputStream();

                  //解析PULL
                  XmlPullParser xpp= Xml.newPullParser();
                  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();
                              Log.i("test",""+"startTagName"+startTagName);
                              if("person".equals(startTagName)){
                                  person = new Person();
                                  //获取name属性值
                                  int pid=Integer.parseInt(xpp.getAttributeValue(0));
                                  Log.i("test",""+pid);
                                  person.setPid(pid);
                              }else if("pname".equals(startTagName)){
                                  //获取sex的文本值
                                  String pname=xpp.nextText();
                                  Log.i("test",""+pname);
                                  person.setPname(pname);
                              }else if("page".equals(startTagName)){
                                  //获取sex的文本值
                                  int page=Integer.parseInt(xpp.nextText());
                                  Log.i("test",""+page);
                                  person.setPage(page);
                              }
                       break;
                          case XmlPullParser.END_TAG:
                              //获取到结束标签的名字
                              String endTagName=xpp.getName();
                              Log.i("test",""+endTagName);
                              if("person".equals(endTagName)){
                                  PersonList.add(person);
                              }
                              break;
                      }
                      type=xpp.next();
                      }
              }
            } catch (Exception e) {
                e.printStackTrace();
            }

            return null;
        }

        @Override
        protected void onPostExecute(Object o) {
            super.onPostExecute(o);
            //通知适配器发生改变
         myadater.notifyDataSetChanged();
            progressDialog.cancel();

        }
    }

}

//添加网络权限

<uses-permission android:name="android.permission.INTERNET">uses-permission>