>3
13
>越野猫
14
15
-
16
>4
17
>装甲猫
18
19
-
20
>5
21
>超音速猫
22
23
>
1
public class Demo01 {
2
3
/**
4
* @param args
5
* @throws Exception
6
* @throws ParserConfigurationException
7
*/
8
static void main(String[] args) throws ParserConfigurationException,Exception {
9
//1.创建解析器工厂
10
SAXParserFactory factory = SAXParserFactory.newInstance();
11
//2.利用工厂创建解析器的对象
12
SAXParser parser = factory.newSAXParser();
13
//3.解析xml
14
MyHandler dh = new MyHandler();
15
parser.parse("cat.xml",dh);
16
List<Cat> list = dh.getList();
17
for(Cat cat:list){
18
System.out.println(cat);
19
}
20
}
21
22
}
1
public class MyHandler extends DefaultHandler {
2
3
/**
4
* 用于保存解析结果的List
5
*/
6
private List<Cat> list;
7
8
9
public List<Cat> getList() {
10
return list;
11
}
12
13
14
* 用于保存当前正在解析的标签
15
16
private String tag;
17
18
* 当前正在组装的cat对象
19
20
private Cat cat;
21
22
23
public void startDocument() throws SAXException {
24
list = new ArrayList<Cat>();
25
}
26
27
public void startElement(String uri,String localName,String qName,Attributes attributes)
29
tag = qName;//保存当前正在解析哪个标签
31
if("cat".equals(qName)){//注意字符串必须与xml中的标签完全一样,否则解析不出来
32
cat = new Cat();
33
}
34
}
35
36
public void endElement(String uri,String qName)
38
//qName::解析到的结束标签的标签名
39
tag = "";//为了防止tag没清空,读到空白文本,走characters时,将对象的属性值赋值成空白文本
40
//遇到了</cat>说明该对象组装完毕,可以加入list
41
list.add(cat);
42
}
43
}
44
45
public void characters(char[] ch,int start,int length)
47
String content = new String(ch,start,length);
48
"id".equals(tag)){//如果当前正在解析的是id
49
cat.setId(content);
50
}else "name".equals(tag)){
51
cat.setName(content);
52
}
53
}
54
55
}
2
Cat {
3
private String id;
4
private String name;
5
public String getId() {
6
return id;
7
}
8
public void setId(String id) {
9
this.id = id;
10
}
11
public String getName() {
12
return name;
13
}
14
public void setName(String name) {
15
this.name = name;
16
}
17
18
public String toString() {
19
return "Cat [id=" + id + ",name=" + name + "]";
20
}
21
22
}
2
- students>
3
- student
4
>
5
>zhangsan
6
age>20
7
sex>male
8
9
-
10
11
>lisi
12
>21
13
>female
14
15
>
1
/**用SAX解析student.xml
2
* @author Administrator
3
*
4
*/
5
Demo01Student {
6
7
throws Exception,SAXException {
8
SAXParserFactory factory = SAXParserFactory.newInstance();
9
SAXParser parser = factory.newSAXParser();
10
File file = new File("student.xml");
11
MyHandler mh = new MyHandler();
12
parser.parse(file,mh);
13
ArrayList<Student> list = mh.getList();
14
Iterator<Student> it = list.iterator();
15
while(it.hasNext()){
16
Student student = it.next();
17
System.out.println(student);
18
}
19
}
20
21
}
1
extends DefaultHandler{
2
3
/**
4
* 承载着已经组装完毕的对象
5
*/
6
private ArrayList<Student> list;
7
8
public ArrayList<Student> getList() {
9
return list;
10
}
11
12
13
* 当前正在解析的标签
14
15
private String tag;
16
17
* 当前正在组装的对象
18
19
private Student student;
20
21
22
throws SAXException {
23
list = new ArrayList<Student>();
24
}
25
26
28
tag = qName;
29
"student".equals(qName)){
30
student = new Student();
31
}
32
}
33
34
36
tag = "";
37
38
list.add(student);
39
}
40
}
41
42
44
String content = length);
45
"id".equals(tag)){
46
student.setId(content);
47
}"name".equals(tag)){
48
student.setName(content);
49
}"age".equals(tag)){
50
student.setAge(Integer.parseInt(content));//String-->int
51
}"sex".equals(tag)){
52
student.setSex(content);
53
}
54
}
55
56
}
1
Student {
2
private String id;
3
private String name;
4
private int age;
5
private String sex;
6
7
public String toString() {
8
"Student [id=" + id + + age + + sex + "]";
9
}
10
public String getId() {
11
return id;
12
}
13
public void setId(String id) {
14
this.id = id;
15
}
16
public String getName() {
17
return name;
18
}
19
public void setName(String name) {
20
this.name = name;
21
}
22
public int getAge() {
23
return age;
24
}
25
public void setAge(int age) {
26
this.age = age;
27
}
28
public String getSex() {
29
return sex;
30
}
31
public void setSex(String sex) {
32
this.sex = sex;
33
}
34
35
}
2
- >
3
- student id="1"
4
>
5
6
7
8
- "2"
9
10
11
12
13
>
Demo02Student {
2
SAXException,IOException {
4
SAXParserFactory factory = SAXParserFactory.newInstance();
5
SAXParser parser = factory.newSAXParser();
6
File file = "student02.xml");
7
MyHandler mh = new MyHandler();
8
parser.parse(file,mh);
9
ArrayList<Student> list = mh.getList();
10
Iterator<Student> it = list.iterator();
11
while(it.hasNext()){
12
Student student = it.next();
13
System.out.println(student);
14
}
15
}
16
17
}
1
extends DefaultHandler{
2
3
private ArrayList<Student> list;
4
private String tag;
5
private Student student;
6
7
8
throws SAXException {
9
// TODO Auto-generated method stub
10
list = new ArrayList<Student>();
11
}
12
13
15
tag = qName;
16
"student".equals(qName)){
17
student = new Student();
19
student.setId(value);
20
}
21
}
22
23
25
tag = "";
26
27
list.add(student);
28
}
29
}
30
31
public ArrayList<Student> getList() {
32
return list;
33
}
34
35
37
String content = length);
38
"name".equals(tag)){
39
student.setName(content);
40
}"age".equals(tag)){
41
student.setAge(Integer.parseInt(content));
42
}"sex".equals(tag)){
43
student.setSex(content);
44
}
45
}
46
47
}
@H_578_5403@
1
Student {
2
private String id;
3
private String name;
4
private int age;
5
private String sex;
6
7
public String toString() {
8
"]";
9
}
10
public String getId() {
11
return id;
12
}
13
public void setId(String id) {
14
this.id = id;
15
}
16
public String getName() {
17
return name;
18
}
19
public void setName(String name) {
20
this.name = name;
21
}
22
public int getAge() {
23
return age;
24
}
25
public void setAge(int age) {
26
this.age = age;
27
}
28
public String getSex() {
29
return sex;
30
}
31
public void setSex(String sex) {
32
this.sex = sex;
33
}
34
35
}
1
2
- bookstore>
3
- book category="java"
4
title lang="english">java基础title>
5
author>gosling
6
year>2014
7
price>200
8
book
9
- "android"
10
"chinese">android基础
11
>google
12
13
14
15
>
1
extends DefaultHandler{
2
3
private ArrayList<Book> list;
4
5
private String tag;
6
public ArrayList<Book> getList() {
7
return list;
8
}
9
10
private Book book;
11
12
13
throws SAXException {
14
list = new ArrayList<Book>();
15
}
16
17
19
tag = qName;
20
"book".equals(qName)){
21
book = new Book();
22
String value = attributes.getValue("category");
23
book.setCategory(value);
24
}"title".equals(qName)){//<title lang="english">
25
String value = attributes.getValue("lang");
26
book.setLang(value);
27
}
28
}
29
30
32
tag = "";
33
34
list.add(book);
35
}
36
}
37
38
40
String content = length);
41
/*<title lang="english">java基础</title>
42
<author>gosling</author>
43
<year>2014</year>
44
<price>200</price>*/
45
"title".equals(tag)){//解析"java基础"文本
46
book.setTitle(content);
47
}"author".equals(tag)){
48
book.setAuthor(content);
49
}"year".equals(tag)){
50
book.setYear(Integer.parseInt(content));
51
}"price".equals(tag)){
52
book.setPrice(Double.parseDouble(content));
53
}
54
}
55
56
}
1
Book {
2
/*<book category="java">
3
<title lang="english">java基础</title>
4
<author>gosling</author>
5
<year>2014</year>
6
<price>200</price>
7
</book>*/
8
private String category;
9
private String lang;
10
private String title;
11
private String author;
12
private int year;
13
private double price;
14
15
public String toString() {
16
"Book [category=" + category + + lang + + title + + author +
17
+ year + + price + "]";
18
}
19
public String getCategory() {
20
return category;
21
}
22
public void setCategory(String category) {
23
this.category = category;
24
}
25
public String getLang() {
26
return lang;
27
}
28
public void setLang(String lang) {
29
this.lang = lang;
30
}
31
public String getTitle() {
32
return title;
33
}
34
public void setTitle(String title) {
35
this.title = title;
36
}
37
public String getAuthor() {
38
return author;
39
}
40
public void setAuthor(String author) {
41
this.author = author;
42
}
43
public int getYear() {
44
return year;
45
}
46
public void setYear(int year) {
47
this.year = year;
48
}
49
public double getPrice() {
50
return price;
51
}
52
public void setPrice(double price) {
53
this.price = price;
54
}
55
56
}
原文链接：https://www.f2er.com/xml/293889.html
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