Java-->xml的pull解析，java--xmlpull

Java-->xml的pull解析，java--xmlpull

--> pull解析器是android內建的解析器，解析原理與sax類似

--> xml檔案student.xml:

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <!-- 有三個學生：姓名、年齡、性別。把這三個學生的資訊用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 @Override44 public String toString() {45 return "Student [name=" + name + ", age=" + age + ", sex=" + sex + "]";46 }47 48 }Student

--> Test 測試類別：

 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、擷取一個XmlPullParser解析器26         XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); // 調用解析器工廠的靜態方法，建立一個解析器工廠27         XmlPullParser parser = factory.newPullParser(); // 建立一個pull解析器28         parser.setInput(new FileReader(29                 "D:/workspace/08-25/src/com/dragon/java/xml/students.xml")); // 設定一個輸入資料流，告訴要解析的xml資料的來源30         int event = parser.getEventType(); // 擷取當前事件的類型31         while (event != END_DOCUMENT) { // 當碰到文檔結束的時候，結束迴圈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())); // 擷取當前事件後面的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...