xmlpull讀取xml文件

1：weather.xml

<?xml version="1.0" encoding="utf-8"?>
<infos>
 <city id="1">
  <temp>20'C/30'C</temp>
  <weather>多雲</weather>
  <wind>南風3級</wind>
  <name>上海</name>
  <pm>200</pm>
 </city>

 <city id="2">
  <temp>20'C/35'C</temp>
  <weather>暴雨</weather>
  <wind>南風10級</wind>
  <name>北京</name>
  <pm>800</pm>
 </city>

 <city id="3">
  <temp>0'C/10'C</temp>
  <weather>暴雪</weather>
  <wind>北風32級</wind>
  <name>廣州</name>
  <pm>200</pm>
 </city>

</infos>

 

2：

package com.itheima.weather;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

import com.itheima.weather.po.WeatherInfo;
import com.itheima.weather.service.WeaterService;

public class WeatherActivity extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  TextView tv_info = (TextView) this.findViewById(R.id.vt_info);

  try {
   ArrayList<WeatherInfo> infos = WeaterService
     .getWeatherInfo(WeatherActivity.class.getClassLoader()
       .getResourceAsStream("weather.xml"));
   StringBuffer sb = new StringBuffer();
   for (WeatherInfo info : infos) {
    sb.append(info);
    sb.append("\n");
   }
   tv_info.setText(sb.toString());
  } catch (Exception e) {
   e.printStackTrace();
   Toast.makeText(this, "xml解析失敗", 0).show();
  }

 }
}

 

3：

package com.itheima.weather.service;

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

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

import com.itheima.weather.po.WeatherInfo;

public class WeaterService {
 public static ArrayList<WeatherInfo> getWeatherInfo(InputStream is)
   throws Exception {
  ArrayList<WeatherInfo> infos = null;
  WeatherInfo info = null;

  // XmlPullParser parser = Xml.newPullParser();

  XmlPullParserFactory fac = XmlPullParserFactory.newInstance();
  XmlPullParser parser = fac.newPullParser();

  parser.setInput(is, "utf-8");
  int type = parser.getEventType();
  while (type != XmlPullParser.END_DOCUMENT) {
   switch (type) {
   case XmlPullParser.START_TAG:
    if ("infos".equals(parser.getName())) {
     infos = new ArrayList<WeatherInfo>();
    } else if ("city".equals(parser.getName())) {
     info = new WeatherInfo();
     info.setId(Integer.parseInt(parser.getAttributeValue(0)));
    } else if ("temp".equals(parser.getName())) {
     info.setTemp(parser.nextText());
    } else if ("weather".equals(parser.getName())) {
     info.setWeather(parser.nextText());
    } else if ("wind".equals(parser.getName())) {
     info.setWind(parser.nextText());
    } else if ("name".equals(parser.getName())) {
     info.setName(parser.nextText());
    } else if ("pm".equals(parser.getName())) {
     info.setPm(parser.nextText());
    }
    break;

   case XmlPullParser.END_TAG:
    if ("city".equals(parser.getName())) {
     infos.add(info);
     info = null;
    }
    break;

   type = parser.next();
  }
  return infos;

 }
}

 

4：

package com.itheima.weather.po;

public class WeatherInfo {
 private int id;
 private String temp;
 private String weather;
 private String wind;
 private String name;
 private String pm;

 public int getId() {
  return id;
 }

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

 public String getTemp() {
  return temp;
 }

 public void setTemp(String temp) {
  this.temp = temp;
 }

 public String getWeather() {
  return weather;
 }

 public void setWeather(String weather) {
  this.weather = weather;
 }

 public String getWind() {
  return wind;
 }

 public void setWind(String wind) {
  this.wind = wind;
 }

 public String getName() {
  return name;
 }

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

 public String getPm() {
  return pm;
 }

 public void setPm(String pm) {
  this.pm = pm;
 }

 @Override
 public String toString() {
  return "[id=" + id + ", 溫度=" + temp + ", 天氣=" + weather + ", 風力="
    + wind + ", 城市=" + name + ", pm2.5=" + pm + "]";
 }

}