ParseXML 和 parseJson

1.解析网络数据：在tomcat的root下，分别写xml文件，json文件。注意编码格式，改为UTF-8；

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1. <?xml version="1.0" encoding="UTF-8"?>  
2. <student>  
3.     <stu sid="1">  
4.         <sname>1</sname>  
5.         <sage>19</sage>  
6.         <ssex>女</ssex>  
7.     </stu>  
8.     <stu sid="2">  
9.         <sname>2</sname>  
10.         <sage>19</sage>  
11.         <ssex>男</ssex>  
12.     </stu>  
13.     <stu sid="3">  
14.         <sname>3</sname>  
15.         <sage>19</sage>  
16.         <ssex>男</ssex>  
17.     </stu>  
18. </student>  

json:

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1. {"count":3,"students":[{"sid":1,"sname":"1"},{"sid":2,"sname":"2"},{"sid":3,"sname":"3"}]}  

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1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout  
3.     xmlns:android="http://schemas.android.com/apk/res/android"  
4.     xmlns:app="http://schemas.android.com/apk/res-auto"  
5.     xmlns:tools="http://schemas.android.com/tools"  
6.     android:layout_width="match_parent"  
7.     android:layout_height="match_parent"  
8.     tools:context="com.zking.parsexml.MainActivity">  
9.   
10.    <Button  
11.        android:layout_width="wrap_content"  
12.        android:layout_height="wrap_content"  
13.        android:text="获取xml的数据"  
14.        android:onClick="getXML"/>  
15.   
16.   
17.    <Button  
18.        android:layout_width="wrap_content"  
19.        android:layout_height="wrap_content"  
20.        android:text="获取json的数据"  
21.        android:onClick="getJson"/>  
22.   
23.   
24. </LinearLayout>  

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1. <?xml version="1.0" encoding="utf-8"?>  
2. <manifest xmlns:android="http://schemas.android.com/apk/res/android"  
3.           package="com.zking.parsexml">  
4.   
5.     <uses-permission android:name="android.permission.INTERNET"></uses-permission>  
6.   
7.     <application  
8.         android:allowBackup="true"  
9.         android:icon="@mipmap/ic_launcher"  
10.         android:label="@string/app_name"  
11.         android:roundIcon="@mipmap/ic_launcher_round"  
12.         android:supportsRtl="true"  
13.         android:theme="@style/AppTheme">  
14.         <activity android:name=".MainActivity">  
15.             <intent-filter>  
16.                 <action android:name="android.intent.action.MAIN"/>  
17.   
18.                 <category android:name="android.intent.category.LAUNCHER"/>  
19.             </intent-filter>  
20.         </activity>  
21.     </application>  
22.   
23. </manifest>  

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1. package com.zking.parsexml;  
2.   
3. import java.util.List;  
4.   
5. /**  
6.  * Created by Administrator on 2017/7/26 0026.  
7.  */  
8.   
9. public class Out {  
10.     private int count;  
11.     private List<Students> students;  
12.   
13.     public Out() {  
14.     }  
15.   
16.     public Out(int count, List<Students> students) {  
17.         this.count = count;  
18.         this.students = students;  
19.     }  
20.   
21.     public int getCount() {  
22.         return count;  
23.     }  
24.   
25.     public void setCount(int count) {  
26.         this.count = count;  
27.     }  
28.   
29.     public List<Students> getStudents() {  
30.         return students;  
31.     }  
32.   
33.     public void setStudents(List<Students> students) {  
34.         this.students = students;  
35.     }  
36. }  

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1. package com.zking.parsexml;  
2.   
3. /**  
4.  * Created by Administrator on 2017/7/26 0026.  
5.  */  
6.   
7. public class Students {  
8.     private int sid;  
9.     private String sname;  
10.   
11.     public Students() {  
12.     }  
13.   
14.     public Students(int sid, String sname) {  
15.         this.sid = sid;  
16.         this.sname = sname;  
17.     }  
18.   
19.     public int getSid() {  
20.         return sid;  
21.     }  
22.   
23.     public void setSid(int sid) {  
24.         this.sid = sid;  
25.     }  
26.   
27.     public String getSname() {  
28.         return sname;  
29.     }  
30.   
31.     public void setSname(String sname) {  
32.         this.sname = sname;  
33.     }  
34. }  

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1. package com.zking.parsexml;  
2.   
3. import android.app.ProgressDialog;  
4. import android.os.AsyncTask;  
5. import android.support.v7.app.AppCompatActivity;  
6. import android.os.Bundle;  
7. import android.util.Log;  
8. import android.util.Xml;  
9. import android.view.View;  
10.   
11. import com.alibaba.fastjson.JSON;  
12.   
13. import org.xmlpull.v1.XmlPullParser;  
14. import org.xmlpull.v1.XmlPullParserException;  
15.   
16. import java.io.IOException;  
17. import java.io.InputStream;  
18. import java.net.HttpURLConnection;  
19. import java.net.MalformedURLException;  
20. import java.net.URL;  
21. import java.util.List;  
22.   
23. public class MainActivity extends AppCompatActivity {  
24.   
25.     private ProgressDialog pd;  
26.   
27.     @Override  
28.     protected void onCreate(Bundle savedInstanceState) {  
29.         super.onCreate(savedInstanceState);  
30.         setContentView(R.layout.activity_main);  
31.   
32.         pd = new ProgressDialog(this);  
33.         pd.setMessage("拼命加载中");  
34.     }  
35.   
36.     public void getXML(View view){  
37.         new MyGetXML().execute();  
38.     }  
39.   
40.     class MyGetXML extends AsyncTask{  
41.   
42.         @Override  
43.         protected Object doInBackground(Object[] params) {  
44.             //在后台运行数据  
45.             //获取访问网络数据路径  
46.             String path="http://192.168.43.22:8080/student.xml";  
47.             //加载路径  
48.             try {  
49.                 URL url=new URL(path);  
50.                 //打开网址  
51.                 HttpURLConnection httpURLConnection= (HttpURLConnection) url.openConnection();  
52.                 //设置请求方式  
53.                 httpURLConnection.setRequestMethod("GET");  
54.                 //设置请求时间(获取数据)  
55.                 httpURLConnection.setConnectTimeout(5000);  
56.                 //获取响应码  
57.                 int a=httpURLConnection.getResponseCode();  
58.                 if(a==200){  
59.                     //获取数据--以流的方式  
60.                     InputStream is = httpURLConnection.getInputStream();  
61.                    /* int len=0;  
62.                     byte[]b=new byte[1024];  
63.                     StringBuffer sb=new StringBuffer();  
64.                     while ((len= is.read(b))!=-1){  
65.                         String s=new String(b,0,len);  
66.                         sb.append(s);  
67.                     }*/  
68.                     //解析XML  
69.                     XmlPullParser xmlPullParser= Xml.newPullParser();  
70.                     xmlPullParser.setInput(is,"UTF-8");  
71.                     //解析标签类型  
72.                     int type=xmlPullParser.getEventType();  
73.                     while(type!=XmlPullParser.END_DOCUMENT){  
74.                         switch (type) {  
75.                             case XmlPullParser.START_TAG:  
76.                                 //获取开始标签  
77.                                 String start=xmlPullParser.getName();  
78.                                 if("stu".equals(start)){  
79.                                     String sid= xmlPullParser.getAttributeValue(0);  
80.                                     Log.i("test",sid);  
81.                                 }else if("sname".equals(start)){  
82.                                   String sname= xmlPullParser.nextText();  
83.                                     Log.i("test",sname);  
84.                                 }else if("sage".equals(start)){  
85.                                    String sage= xmlPullParser.nextText();  
86.                                     Log.i("test",sage);  
87.                                 }else if("ssex".equals(start)){  
88.                                     String ssex=xmlPullParser.nextText();  
89.                                     Log.i("test",ssex);  
90.                                 }  
91.                                 break;  
92.                             case XmlPullParser.END_TAG:  
93.                                 break;  
94.                         }  
95.                         type=xmlPullParser.next();  
96.                     }  
97.                    // Log.i("test",sb.toString());  
98.                     is.close();  
99.                 }  
100.   
101.             } catch (MalformedURLException e) {  
102.                 e.printStackTrace();  
103.             } catch (IOException e) {  
104.                 e.printStackTrace();  
105.             } catch (XmlPullParserException e) {  
106.                 e.printStackTrace();  
107.             }  
108.             return null;  
109.         }  
110.   
111.         @Override  
112.         protected void onPostExecute(Object o) {  
113.             //刷新界面  
114.             super.onPostExecute(o);  
115.         }  
116.     }  
117.   
118.   
119.     public void getJson(View view){  
120.         new MyGetJson().execute();  
121.     }  
122.   
123.     class  MyGetJson extends AsyncTask{  
124.         @Override  
125.         protected void onPreExecute() {  
126.             super.onPreExecute();  
127.             pd.show();  
128.   
129.         }  
130.   
131.         @Override  
132.         protected Object doInBackground(Object[] params) {  
133.             //获取网络路径  
134.             String path="http://192.168.43.22:8080/students.json";  
135.             //加载网络路径  
136.             try {  
137.                 URL url=new URL(path);  
138.                 HttpURLConnection httpURLConnection= (HttpURLConnection) url.openConnection();  
139.                 //设置请求方式  
140.                 httpURLConnection.setRequestMethod("GET");  
141.                 //设置加载数据的时间  
142.                 httpURLConnection.setConnectTimeout(5000);  
143.                 if(httpURLConnection.getResponseCode()==200){  
144.                     InputStream is=httpURLConnection.getInputStream();  
145.                     int len=0;  
146.                     byte[]b=new byte[1024];  
147.                     StringBuffer sb=new StringBuffer();  
148.                     while((len=is.read(b))!=-1){  
149.                         String s=new String(b,0,len);  
150.                         sb.append(s);  
151.                     }  
152.                     Log.i("test",sb.toString());  
153.                     //解析json  
154.                     Out out=JSON.parseObject(sb.toString(),Out.class);  
155.                     int count=out.getCount();  
156.                     List<Students> students=out.getStudents();  
157.                     for (Students s : students) {  
158.                         Log.i("test",s.getSid()+"  "+s.getSname());  
159.                     }  
160.   
161.                     is.close();  
162.   
163.                 }  
164.   
165.   
166.             } catch (MalformedURLException e) {  
167.                 e.printStackTrace();  
168.             } catch (IOException e) {  
169.                 e.printStackTrace();  
170.             }  
171.   
172.             return null;  
173.         }  
174.   
175.         @Override  
176.         protected void onPostExecute(Object o) {  
177.             super.onPostExecute(o);  
178.             pd.cancel();  
179.         }  
180.     }  
181.   
182.   
183.   
184.   
185. }