xml和java Bean的直接转换，Xmap

package test;import java.util.ArrayList; import java.util.List; import org.nuxeo.common.xmap.annotation.XNode; import org.nuxeo.common.xmap.annotation.XNodeList; import org.nuxeo.common.xmap.annotation.XObject; /** * Book 实体对象，此处用XMap注解 * @author Administrator * */@XObject public class Book { @XNode("title") private String title; @XNode("@no") private String no; @XNodeList(value = "subject", type = ArrayList.class, componentType = String.class) private List<String> subjects; @XNode("price") private int price; public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public List<String> getSubjects() { return subjects; } public void setSubjects(List<String> subjects) { this.subjects = subjects; } public int getPrice() { return price; } public void setPrice(int price) { this.price = price; } public String getNo() { return no; } public void setNo(String no) { this.no = no; } } /**==================================================**/package test;import java.util.ArrayList; import java.util.List; import org.nuxeo.common.xmap.annotation.XNodeList; import org.nuxeo.common.xmap.annotation.XObject; /** * 图书对象集合类 * @author zhouyu * */@XObject(value = "books") public class Books { @XNodeList(value = "book", type = ArrayList.class, componentType = Book.class) private List<Book> book; public List<Book> getBook() { return book; } public void setBook(List<Book> book) { this.book = book; } public void addBook(Book b){ if(book==null){ book=new ArrayList<Book>(); } book.add(b); } } /**==================================================**/package test;import java.util.ArrayList;import java.util.List;import org.nuxeo.common.xmap.XMap;import com.io.IoUtils; /** * 从对象到xml转换 * @author zhouyu * */public class ObjectToXmlDemo { public static void main(String[] args) { try { //声明一组书的根节点 Books books=new Books(); //声明一本书 Book book=new Book(); //书的类型 List<String> sj = new ArrayList<String>(); sj.add("java"); sj.add("xml"); //设置书节点的属性 book.setPrice(10); book.setTitle("java是傻逼"); book.setSubjects(sj); book.setNo("1"); //将书节点添加到跟节点 books.addBook(book); //声明一本书 Book book2=new Book(); //书的类型 List<String> sj2=new ArrayList<String>(); sj2.add("C++"); sj2.add("c"); //设置书节点的属性 book2.setPrice(10); book2.setTitle("c++程序设计"); book2.setSubjects(sj2); book2.setNo("2"); //将书节点添加到跟节点 books.addBook(book2); XMap xmp = new XMap(); xmp.register(Books.class); List<String> filters = new ArrayList<String>(); String content = xmp.asXmlString(books, "UTF-8", filters, true); IoUtils.WriteFile(content, "UTF-8", "books.xml"); } catch (Exception e) { e.printStackTrace(); } } } /**==================================================**/package test;import java.io.File;import java.io.FileInputStream;import java.io.InputStream;import java.net.URL;import org.nuxeo.common.xmap.XMap;public class XmlToObjectDemo {public static void main(String[] args) {try {XMap xmp = new XMap();xmp.register(Books.class);//URL url = new File("books.xml").toURL();InputStream in = new FileInputStream(new File("books.xml"));Object[] result = (Object[]) xmp.loadAll(in);Books books = (Books) result[0];for(int i = 0 ; i < books.getBook().size() ; i++){Book book = books.getBook().get(i);System.out.println(book.getNo());System.out.println(book.getPrice());System.out.println(book.getTitle());System.out.println(book.getSubjects().get(i));}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}}/**==================================================**/<?xml version="1.0" encoding="UTF-8" standalone="no"?><books><book no="1"><title>java是傻逼</title><subject>java</subject><subject>xml</subject><price>10</price></book><book no="2"><title>c++程序设计</title><subject>C++</subject><subject>c</subject><price>10</price></book></books>