用Simple framework OO的操作XML..

具体信息参见: http://simple.sourceforge.net/

比如要操作的XML为:

<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
	<book catalog="Programming">
		<title lang="en">C++ Programming Language</title>
			<author>Bjarne Stroustrup</author>
			<year>1998</year>
			<price>98.0</price>
	</book>
	<book catalog="Networking">
		<title lang="en">TCP/IP Illustrated</title>
			<author>Richard Stevens</author>
				<year>1996</year>
				<price>56.0</price>
	</book>
</bookstore>

首先建立POJO类:

public class Book {
	
	@Attribute
	String catalog =null;
	
	@ElementMap (key="lang" ,entry="title" ,inline=true ,attribute=true)
	Map<String,String> map = null;
	
	@Element
	String author = null;
	
	@Element
	String year = null;
	
	@Element 
	String price = null;
	
	public Book(){
		//必要的.在读取的时候默认调用无参构造.
	}
//省略set,get
}

@Root (name="bookstore")
public class Bookstore {
	
	@ElementList (inline=true)
	List<Book> book = null;
	public List<Book> getBook() {
		return book;
	}
	public void setBook(List<Book> book) {
		this.book = book;
	}
}

序列化测试:

@Test public void test_toXML(){ //序列化
		Serializer serializer = new Persister();
		
		HashMap<String,String> hm = new HashMap<String, String>();
		hm.put("en", "C++ Programming Language");
		HashMap<String,String> hm1 = new HashMap<String, String>();
		hm1.put("en", "TCP/IP Illustrated");
		List<Book> book = new ArrayList<Book>();
		book.add(new Book(hm,"Bjarne Stroustrup","1998","98.0","Programming"));
		book.add(new Book(hm1,"Richard Stevens","1996","56.0","Networking"));
		Bookstore bs = new Bookstore();
		bs.setBook(book);
		
		OutputStream os = new ByteArrayOutputStream();
		try {
			serializer.write(bs, os);
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		System.out.println(os.toString());
		try {
			os.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

输出:

<bookstore>
	<book catalog="Programming">
		<title lang="en">C++ Programming Language</title>
			<author>Bjarne Stroustrup</author>
			<year>1998</year>
			<price>98.0</price>
	</book>
	<book catalog="Networking">
		<title lang="en">TCP/IP Illustrated</title>
			<author>Richard Stevens</author>
				<year>1996</year>
				<price>56.0</price>
	</book>
</bookstore>

反序列化测试:

@Test public void test_XML2Obj(){
		Serializer serializer = new Persister();
		try {
			Bookstore bs = serializer.read(Bookstore.class, new File("F:/simple_xml.xml"));
			
			for(Book b : bs.getBook()){
				System.out.println(b.getMap());
				System.out.println(b.getAuthor());
				System.out.println(b.getCatalog());
				System.out.println(b.getPrice());
				System.out.println(b.getYear());
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

---

比dom4j oo了许多.