XML解析

最新推荐文章于 2018-07-12 08:07:04 发布

转载最新推荐文章于 2018-07-12 08:07:04 发布 · 254 阅读

网络下载

package com.animee.day15.xml_test;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * Created by Administrator on 2018/1/12.
 */

public class HttpUtils {
    public static String getStringContent(String path){
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            URL url = new URL(path);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            InputStream is = conn.getInputStream();
            int hasRead = 0;
            byte[]buf = new byte[1024];
            while((hasRead = is.read(buf))!=-1){
                baos.write(buf,0,hasRead);
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return baos.toString();
    }

    public static byte[] getByteArray(String path){
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            HttpURLConnection connection = (HttpURLConnection) new URL(path).openConnection();
            InputStream is = connection.getInputStream();
            int hasRead = 0;
            byte[]buf = new byte[1024];
            while((hasRead = is.read(buf))!=-1){
                baos.write(buf,0,hasRead);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return baos.toByteArray();
    }
}

解析XML数据

package com.animee.day15.xml_test;

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

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

/**
 * Created by Administrator on 2018/1/12.
 * 解析网络的xml数据的类
 */
public class ParseXML {

    public static WeatherBean parseXML(String content){
        WeatherBean bean = new WeatherBean();
        List<WeatherBean.Weather>weatherList = new ArrayList<>();
        List<WeatherBean.Zhishu>zhishuList = new ArrayList<>();
        bean.setWeatherList(weatherList);
        bean.setZhishuList(zhishuList);

//        开始解析---》pull解析
//        1.获得工厂类对象
        try {
            XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
//            2.获得解析器对象
            XmlPullParser pullParser = factory.newPullParser();
//            3.设置需要解析的数据源
//            把String转化成输入流
            ByteArrayInputStream bais = new ByteArrayInputStream(content.getBytes());
            pullParser.setInput(bais,"utf-8");  //第一个参数：输入流，第二个参数：编码格式
//            4.获得响应码
            int code = pullParser.getEventType();
//             在循环开始之前，想把添加到集合当中的对象的引用，获取到
            WeatherBean.Weather weather = null;
            WeatherBean.Zhishu zhishu = null;

            while (code != XmlPullParser.END_DOCUMENT) {
//                获取正在被解析的标签名
                String name = pullParser.getName();
                switch (code) {
                    case XmlPullParser.START_TAG:
                        if (name.equals("city")) {
                            String city = pullParser.nextText();
                            bean.setCity(city);
                        }else if (name.equals("updatetime")) {
                            bean.setUpdatetime(pullParser.nextText());
                        }else if (name.equals("wendu")) {
                            bean.setWendu(pullParser.nextText());
                        }else if (name.equals("shidu")) {
                            bean.setShidu(pullParser.nextText());
                        }else if (name.equals("fengxiang")) {
                            bean.setFengxiang(pullParser.nextText());
                        }else if (name.equals("weather")) {
                            weather = new WeatherBean.Weather();
                        }else if (name.equals("date")) {
                            weather.setDate(pullParser.nextText());
                        }else if (name.equals("high")) {
                            weather.setHigh(pullParser.nextText());
                        }else if (name.equals("low")) {
                            weather.setLow(pullParser.nextText());
                        }else if (name.equals("zhishu")) {
                            zhishu = new WeatherBean.Zhishu();
                        }else if (name.equals("name")) {
                            zhishu.setName(pullParser.nextText());
                        }else if (name.equals("value")) {
                            zhishu.setValue(pullParser.nextText());
                        }else if (name.equals("detail")) {
                            zhishu.setDetail(pullParser.nextText());
                        }
                        break;
                    case XmlPullParser.END_TAG:
                        if (name.equals("weather")) {
                            weatherList.add(weather);
                        }else if (name.equals("zhishu")) {
                            zhishuList.add(zhishu);
                        }
                        break;
                }
//                移动指针，指向下一个节点
                code = pullParser.next();
            }

        } catch (XmlPullParserException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return bean;
    }
}

适配器

package com.animee.day15.xml_test;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.animee.day15.R;

import java.util.List;

/**
 * Created by Administrator on 2018/1/12.
 */

public class WeatherAdapter extends BaseAdapter{
    private Context context;
    private List<WeatherBean.Weather>mDatas;

    public WeatherAdapter(Context context, List<WeatherBean.Weather> mDatas) {
        this.context = context;
        this.mDatas = mDatas;
    }

    @Override
    public int getCount() {
        return mDatas.size();
    }

    @Override
    public Object getItem(int position) {
        return mDatas.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        WeatherViewHolder holder = null;
        if (convertView==null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.item_sp,null);
            holder = new WeatherViewHolder(convertView);
            convertView.setTag(holder);
        }else{
            holder = (WeatherViewHolder) convertView.getTag();
        }
        WeatherBean.Weather weather = mDatas.get(position);
        holder.highTv.setText(weather.getHigh());
        holder.lowTv.setText(weather.getLow());
        holder.dateTv.setText(weather.getDate());
        return convertView;
    }

    class WeatherViewHolder{
        TextView dateTv,highTv,lowTv;
        public WeatherViewHolder(View view){
            dateTv = (TextView) view.findViewById(R.id.tv_time);
            highTv = (TextView) view.findViewById(R.id.tv_high);
            lowTv = (TextView) view.findViewById(R.id.tv_low);
        }
    }
}

适配器

package com.animee.day15.xml_test;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.animee.day15.R;

import java.util.List;

/**
 * Created by Administrator on 2018/1/12.
 */

public class ZhishuAdapter extends BaseAdapter{
    private Context context;
    private List<WeatherBean.Zhishu>mDatas;

    public ZhishuAdapter(Context context, List<WeatherBean.Zhishu> mDatas) {
        this.context = context;
        this.mDatas = mDatas;
    }

    @Override
    public int getCount() {
        return mDatas.size();
    }

    @Override
    public Object getItem(int position) {
        return mDatas.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ZhishuViewHolder holder = null;
        if (convertView==null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.item_lv,null);
            holder = new ZhishuViewHolder(convertView);
            convertView.setTag(holder);
        }else{
            holder = (ZhishuViewHolder) convertView.getTag();
        }
        WeatherBean.Zhishu zhishu = mDatas.get(position);
        holder.nameTv.setText(zhishu.getName());
        holder.valueTv.setText(zhishu.getValue());
        holder.detailTv.setText(zhishu.getDetail());
        return convertView;
    }

    class ZhishuViewHolder{
        TextView nameTv,valueTv,detailTv;
        public ZhishuViewHolder(View view){
            nameTv = (TextView) view.findViewById(R.id.tv_name);
            valueTv = (TextView) view.findViewById(R.id.tv_value);
            detailTv = (TextView) view.findViewById(R.id.tv_detail);
        }
    }
}

实体类

package com.animee.day15.xml_test;

import java.util.List;

/**
 * Created by Administrator on 2018/1/12.
 */

public class WeatherBean {
    private String city;
    private String updatetime;
    private String wendu;
    private String shidu;
    private String fengxiang;
    private List<Weather>weatherList;
    private List<Zhishu>zhishuList;

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getUpdatetime() {
        return updatetime;
    }

    public void setUpdatetime(String updatetime) {
        this.updatetime = updatetime;
    }

    public String getWendu() {
        return wendu;
    }

    public void setWendu(String wendu) {
        this.wendu = wendu;
    }

    public String getShidu() {
        return shidu;
    }

    public void setShidu(String shidu) {
        this.shidu = shidu;
    }

    public String getFengxiang() {
        return fengxiang;
    }

    public void setFengxiang(String fengxiang) {
        this.fengxiang = fengxiang;
    }

    public List<Weather> getWeatherList() {
        return weatherList;
    }

    public void setWeatherList(List<Weather> weatherList) {
        this.weatherList = weatherList;
    }

    public List<Zhishu> getZhishuList() {
        return zhishuList;
    }

    public void setZhishuList(List<Zhishu> zhishuList) {
        this.zhishuList = zhishuList;
    }

    public WeatherBean() {
    }

    public WeatherBean(String city, String updatetime, String wendu, String shidu, String fengxiang, List<Weather> weatherList, List<Zhishu> zhishuList) {
        this.city = city;
        this.updatetime = updatetime;
        this.wendu = wendu;
        this.shidu = shidu;
        this.fengxiang = fengxiang;
        this.weatherList = weatherList;
        this.zhishuList = zhishuList;
    }

    public static class Weather{
        private String date;
        private String high;
        private String low;

        public String getDate() {
            return date;
        }

        public void setDate(String date) {
            this.date = date;
        }

        public String getHigh() {
            return high;
        }

        public void setHigh(String high) {
            this.high = high;
        }

        public String getLow() {
            return low;
        }

        public void setLow(String low) {
            this.low = low;
        }

        public Weather() {
        }

        public Weather(String date, String high, String low) {
            this.date = date;
            this.high = high;
            this.low = low;
        }
    }

    public static class Zhishu{
        private String name;
        private String value;
        private String detail;

        public String getValue() {
            return value;
        }

        public void setValue(String value) {
            this.value = value;
        }

        public String getDetail() {
            return detail;
        }

        public void setDetail(String detail) {
            this.detail = detail;
        }

        public String getName() {
            return name;
        }

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

        public Zhishu() {
        }

        public Zhishu(String name, String value, String detail) {
            this.name = name;
            this.value = value;
            this.detail = detail;
        }
    }
}

Activity

package com.animee.day15.xml_test;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import com.animee.day15.R;
import java.util.ArrayList;
import java.util.List;
public class XMLTestActivity extends AppCompatActivity {
    private ListView xmlLV;
    private TextView cityTv,uptimeTv,currentTv;
    private Spinner spinner;
    private List<WeatherBean.Weather> weatherList;   //Spinner的数据
    private List<WeatherBean.Zhishu> zhishuList;  //ListView的数据源
    private ZhishuAdapter zhishuAdapter;
    private WeatherAdapter weatherAdapter;
    String url = "http://wthrcdn.etouch.cn/WeatherApi?citykey=101010100";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_xmltest);
        xmlLV = (ListView) findViewById(R.id.xml_lv);
//        给ListView添加头布局
        View headerView = LayoutInflater.from(this).inflate(R.layout.header_layout,null);
        xmlLV.addHeaderView(headerView);
         cityTv = (TextView) headerView.findViewById(R.id.tv_city);
         uptimeTv = (TextView) headerView.findViewById(R.id.tv_time);
         currentTv= (TextView) headerView.findViewById(R.id.tv_enviroment);
         spinner = (Spinner) headerView.findViewById(R.id.sp_last_five);

//        设置数据源
        weatherList = new ArrayList<>();
        zhishuList = new ArrayList<>();
//        设置适配器
//        1.1设置listview的适配器
        zhishuAdapter = new ZhishuAdapter(this,zhishuList);
        xmlLV.setAdapter(zhishuAdapter);
//       1.2设置Spinner的适配器
        weatherAdapter = new WeatherAdapter(this,weatherList);
        spinner.setAdapter(weatherAdapter);
//      加载网络数据
        loadWebData(url);
    }

    private void loadWebData(String url) {
        new AsyncTask<String,Void,String>(){
            @Override
            protected String doInBackground(String... params) {
//                获取网络数据，并返回
                String content = HttpUtils.getStringContent(params[0]);
                return content;
            }

            @Override
            protected void onPostExecute(String s) {
                if (s!=null&&!s.isEmpty()) {
//                     解析数据
                    WeatherBean bean = ParseXML.parseXML(s);
                    cityTv.setText("城市："+bean.getCity());
                    uptimeTv.setText(bean.getUpdatetime());
                    currentTv.setText("当前温度："+bean.getWendu()+",湿度:"+bean.getShidu()+",风向："+bean.getFengxiang());

                    weatherList.addAll(bean.getWeatherList());
                    weatherAdapter.notifyDataSetChanged();

                    zhishuList.addAll(bean.getZhishuList());
                    zhishuAdapter.notifyDataSetChanged();
                }
            }
        }.execute(url);
    }
}

activitymain布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.animee.day15.xml_test.XMLTestActivity">
    <ListView
        android:id="@+id/xml_lv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:divider="@color/colorPrimary"
        android:dividerHeight="1dp"></ListView>
</RelativeLayout>

item_lv

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp">

    <TextView
        android:id="@+id/tv_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="晨练指数："
        android:textSize="20sp"
        android:textColor="@color/colorAccent"/>

    <TextView
        android:id="@+id/tv_value"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="适宜"
        android:textSize="16sp"/>

    <TextView
        android:id="@+id/tv_detail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#eee"
        android:padding="10dp"
        android:textColor="@color/colorPrimary"
        android:text="天气不错，空气清新，是您晨练的大好时机，建议不同年龄段的人们积极参加户外健身活动。" />

</LinearLayout>

item_sp

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp">

    <TextView
        android:id="@+id/tv_time"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="12日星期五"
        android:textSize="20sp"/>

    <TextView
        android:id="@+id/tv_high"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/tv_time"
        android:layout_marginTop="10dp"
        android:text="高温2" />

    <TextView
        android:id="@+id/tv_low"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/tv_high"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_marginEnd="90dp"
        android:layout_marginRight="90dp"
        android:text="低温-8" />
</RelativeLayout>

header_layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="10dp">

    <TextView
        android:id="@+id/tv_city"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:text="城市：北京"
        android:textSize="22sp" />

    <TextView
        android:id="@+id/tv_time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/tv_city"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_marginEnd="50dp"
        android:layout_marginRight="50dp"
        android:text="10:21"
        android:textSize="18sp" />

    <TextView
        android:id="@+id/tv_enviroment"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/tv_city"
        android:layout_marginTop="10dp"
        android:text="当前温度：-5"
        android:textSize="18sp" />

    <Spinner
        android:id="@+id/sp_last_five"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/tv_enviroment"
        android:layout_marginTop="20dp" />

    <TextView
        android:id="@+id/tv_zhishu"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/sp_last_five"
        android:layout_marginTop="10dp"
        android:text="今日指数："
        android:textSize="20sp" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.animee.day15.demo02.PostActivity">
    <TextView
        android:id="@+id/tv_post"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</RelativeLayout>

权限

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.animee.day15">

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

    <application
        android:name=".UniteApp"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".xml_test.XMLTestActivity" />
        <activity android:name=".day_test.DayActivity" />
        <activity android:name=".demo01.GetDataActivity" />
        <activity android:name=".demo02.PostActivity" />
        <activity android:name=".demo03.ImageActivity"></activity>
    </application>

</manifest>