Java-->xml的pull解析，java--xmlpull

Java-->xml的pull解析，java--xmlpull

--> pull解析器是android內置的解析器，解析原理與sax類似

--> xml文件student.xml:

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!-- 有三個學生：姓名、年齡、性別。把這三個學生的信息用xml表示出來 -->
 3 <students>
 4     <student name="zhangsan">
 5         <age>18</age>
 6         <sex>男</sex>
 7     </student>
 8     <student name="lisi">
 9         <age>22</age>
10         <sex>女</sex>
11     </student>
12     <student name="wangwu">
13         <age>20</age>
14         <sex>男</sex>
15     </student>
16 </students>

--> Student 類:

1 package com.dragon.java.pullparse; 2 3 public class Student { 4 private String name; 5 private int age; 6 private String sex; 7 8 public Student() { 9 super(); 10 } 11 12 public Student(String name, int age, String sex) { 13 super(); 14 this.name = name; 15 this.age = age; 16 this.sex = sex; 17 } 18 19 public String getName() { 20 return name; 21 } 22 23 public void setName(String name) { 24 this.name = name; 25 } 26 27 public int getAge() { 28 return age; 29 } 30 31 public void setAge(int age) { 32 this.age = age; 33 } 34 35 public String getSex() { 36 return sex; 37 } 38 39 public void setSex(String sex) { 40 this.sex = sex; 41 } 42 43 @Override 44 public String toString() { 45 return "Student [name=" + name + ", age=" + age + ", sex=" + sex + "]"; 46 } 47 48 } Student

--> Test 測試類：

 1 package com.dragon.java.pullparse;
 2 
 3 import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
 4 import static org.xmlpull.v1.XmlPullParser.END_TAG;
 5 import static org.xmlpull.v1.XmlPullParser.START_TAG;
 6 import static org.xmlpull.v1.XmlPullParser.TEXT;
 7 
 8 import java.io.FileReader;
 9 import java.io.IOException;
10 import java.util.ArrayList;
11 import java.util.List;
12 
13 import org.xmlpull.v1.XmlPullParser;
14 import org.xmlpull.v1.XmlPullParserException;
15 import org.xmlpull.v1.XmlPullParserFactory;
16 
17 /*
18  * pull解析器
19  */
20 public class Test {
21     public static void main(String[] args) throws XmlPullParserException,
22             IOException {
23         List<Student> list = null;
24         Student student = null;
25         // 1、獲取一個XmlPullParser解析器
26         XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); // 調用解析器工廠的靜態方法，創建一個解析器工廠
27         XmlPullParser parser = factory.newPullParser(); // 創建一個pull解析器
28         parser.setInput(new FileReader(
29                 "D:/workspace/08-25/src/com/dragon/java/xml/students.xml")); // 設置一個輸入流，告訴要解析的xml數據的來源
30         int event = parser.getEventType(); // 獲取當前事件的類型
31         while (event != END_DOCUMENT) { // 當碰到文檔結束的時候，結束循環
32             switch (event) {
33             case START_TAG:
34                 String tag = parser.getName();
35                 if (tag.equals("students")) {
36                     list = new ArrayList<>();
37                 } else if (tag.equals("student")) {
38                     student = new Student();
39                     student.setName(parser.getAttributeValue(null, "name")); // 參數1：是命名空間，如果命名空間，則傳入null。參數2：屬性的名字
40                     list.add(student);
41                 } else if (tag.equals("age")) {
42                     student.setAge(Integer.parseInt(parser.nextText())); // 獲取當前事件後面的text事件，text的值
43                 } else if (tag.equals("sex")) {
44                     student.setSex(parser.nextText());
45                 }
46                 break;
47             case END_TAG:
48                 break;
49             case TEXT:
50                 break;
51             default:
52                 break;
53             }
54             event = parser.next();
55         }
56         for (Student student2 : list) {
57             System.out.println(student2);
58         }
59     }
60 }

--> 也是蠻麻煩的...