1 package com.example.xmldemo.test;
2
3 import java.io.File;
4 import java.io.FileInputStream;
5 import java.io.FileNotFoundException;
6 import java.io.FileOutputStream;
7 import java.io.IOException;
8 import java.io.InputStreamReader;
9 import java.util.ArrayList;
10 import java.util.List;
11
12 import org.xmlpull.v1.XmlPullParser;
13 import org.xmlpull.v1.XmlSerializer;
14
15 import com.example.xmldemo.Person;
16
17 import android.os.Environment;
18 import android.test.AndroidTestCase;
19 import android.util.Log;
20 import android.util.Xml;
21
22 public class XmlTest extends AndroidTestCase
23 {
24 public void test()
25 {
26 writeLocal();
27
28 List<Person> personList = parseXml();
29 for(Person person : personList)
30 {
31 Log.i("XmlTest", person.toString());
32 }
33 }
34 /**
35 * 写xml文件大本地
36 */
37 public void writeLocal()
38 {
39 List<Person> personList = getPersonList();
40 //获得序列化对象
41 XmlSerializer serializer = Xml.newSerializer();
42 //
43 try
44 {
45 //创建文件流对象
46 File file = new File("data/data/com.example.xmldemo", "persons.xml");
47 FileOutputStream fos = new FileOutputStream(file);
48 //设置文件的输出流
49 serializer.setOutput(fos, "UTF-8");
50 serializer.startDocument("utf-8", true); //<?xml version
51 serializer.startTag(null, "persons"); //<persons>
52 for(Person person : personList)
53 {
54 serializer.startTag(null, "person"); //<person>
55 serializer.attribute(null, "id", String.valueOf(person.getId()));
56 serializer.startTag(null, "name"); //<name>
57 serializer.text(person.getName()); // kite1
58 serializer.endTag(null, "name"); //</name>
59 serializer.startTag(null, "age"); //<age>
60 serializer.text(String.valueOf(person.getAge()));
61 serializer.endTag(null, "age");//</age>
62 serializer.endTag(null, "person"); //<person>
63 }
64 serializer.endTag(null, "persons"); //</persons>
65 serializer.endDocument();
66 serializer.flush();
67 fos.flush();
68 fos.close();
69 } catch (Exception e)
70 {
71 e.printStackTrace();
72 }
73
74 }
75 /**
76 * 获得personList
77 * @return
78 */
79 public List<Person> getPersonList()
80 {
81 List<Person> personList = new ArrayList<Person>();
82 for(int i = 0; i < 30; i++)
83 {
84 Person person = new Person(i, "kite" + 1,18 + i);
85 personList.add(person);
86 }
87 return personList;
88 }
89
90 public List<Person> parseXml()
91 {
92
93 try
94 {
95 //创建文件流对象
96 File file = new File("data/data/com.example.xmldemo", "persons.xml");
97 FileInputStream fis = new FileInputStream(file);
98 //获得pull 解析对象
99 XmlPullParser parser = Xml.newPullParser();
100 // 指定解析的文件和编码格式
101 parser.setInput(fis,"utf-8");
102 int eventType = parser.getEventType(); //获得事件的类型
103
104 //初始化集合
105 List<Person> personList = null;
106 Person person = null;
107 //如果不是最后的endDocument
108 while(eventType != XmlPullParser.END_DOCUMENT)
109 {
110 String tagName = parser.getName();
111 switch (eventType)
112 {
113 case XmlPullParser.START_TAG:
114 //如果是最开始的persons 根节点初始化
115 if("persons".equals(tagName))
116 {
117 personList = new ArrayList<Person>();
118 } else if("person".equals(tagName))
119 {
120 //初始化person对象
121 person = new Person();
122
123 //获得id
124 String id = parser.getAttributeValue(null, "id");
125 person.setId(Integer.parseInt(id));
126 } else if("name".equals(tagName))
127 {
128 person.setName(parser.nextText());
129 } else if("age".equals(tagName))
130 {
131 person.setAge(Integer.parseInt(parser.nextText()));
132 }
133 break;
134 case XmlPullParser.END_TAG:
135 //如果是结束标记
136 if("person".equals(tagName))
137 {
138 // 需要把上面设置好值的person对象添加到集合中
139 personList.add(person);
140 }
141 break;
142 default:
143 break;
144 }
145 //获得下一个事件
146 eventType = parser.next();
147 }
148 return personList;
149 } catch (Exception e)
150 {
151 // TODO Auto-generated catch block
152 e.printStackTrace();
153 }
154 return null;
155 }
156
157 }
转载于:https://my.oschina.net/u/2529405/blog/663602