Java Bean与xml互相转换的方法分析

<?  version=\"1.0\" encoding=\"UTF-8\"?>
<books>
<book no=\"1\">
< >java是傻逼</ >
<subject>java</subject>
<subject> </subject>
<price>10</price>
</book>
<book no=\"2\">
< >c++程序设计</ >
<subject>C++</subject>
<subject>c</subject>
<price>10</price>
</book>
</books>

import java.util.ArrayList;
import java.util.List;
import org.nuxeo.common.xmap.annotation.XNodeList;
import org.nuxeo.common.xmap.annotation.X ;
@X (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);
  }
}

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.X ;
@X 
public class Book {
  @XNode(\" \")
  private String   ;
  @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 get () {
    return  ;
  }
  public void set (String  ) {
    this.  =  ;
  }
  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;
  }
}

import java.util.ArrayList;
import java.util.List;
import org.nuxeo.common.xmap.XMap;
public class XmapTest {
  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(\" \");
      //设置书节点的属性
      book.setPrice(10);
      book.set (\"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.set (\"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>();
      System.out.println(xmp.as String(books, \"UTF-8\", filters, true));
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

xmap.register(Books.class);
      URL url = new File(\"book. \").toURL();
      InputStream in = new FileInputStream(new File(\"book. \"));
       [] result = ( []) xmap.loadAll(in);
Books books=(Books)result[0];