dozer处理不同类之间的映射

原文：http://lishaorui.iteye.com/blog/1151513

 

dozer的github地址：https://github.com/DozerMapper/dozer/

 

1、简介
    dozer是一种JavaBean的映射工具，类似于apache的BeanUtils。但是dozer更强大，它可以灵活的处理复杂类型之间的映射。不 但可以进行简单的属性映射、复杂的类型映射、双向映射、递归映射等，并且可以通过XML配置文件进行灵活的配置。

2、准备
   现在开始就小试一下。
   首先，需要下载jar包，
   dozer.jar :http://dozer.sourceforge.net/downloading.html
   还需要slf4j.jar，commons-lang.jar,commons-beanutil.jar, commons-loggin.jar

3、代码
   两个bean

public class Book {
    private String name;
    private String author;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public Book() {
    }
}

 

public class BookVo {
    private String namevo;
    private String authorvo;

    public String getNamevo() {
        return namevo;
    }

    public void setNamevo(String namevo) {
        this.namevo = namevo;
    }

    public String getAuthorvo() {
        return authorvo;
    }

    public void setAuthorvo(String authorvo) {
        this.authorvo = authorvo;
    }

    public BookVo() {
    }
}

  
   bookMapper.xml配置文件，用来对DozerBeanMapper进行设置。
  

<?xml version="1.0" encoding="UTF-8"?>
<mappings xmlns="http://dozer.sourceforge.net"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://dozer.sourceforge.net
       http://dozer.sourceforge.net/schema/beanmapping.xsd">

       <mapping>
        <class-a>test.Book</class-a>
        <class-b>test.BookVo</class-b>
        <field>
            <a>name</a>
            <b>namevo</b>
        </field>
        <field>
            <a>author</a>
            <b>authorvo</b>
        </field>
       </mapping>
 </mappings>

   测试类
  

package test;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.dozer.DozerBeanMapper;

/**
 * 说明：
 *
 * @author lsr
 * @version Aug 17, 2011
 */
public class DozerTest {
    /**
     * @param args
     */
    public static void main(String[] args) {
        testByXml();
    }

    public static void testByXml() {
        Book book = new Book();
        book.setAuthor("lsr");
        book.setName("dozer demo");
        DozerBeanMapper mapper = new DozerBeanMapper();
        List<String> mappers = new ArrayList<String>();
        mappers.add("bookMapper.xml");
        mapper.setMappingFiles(mappers);
        BookVo vo = new BookVo();
        mapper.map(book, vo);
        System.out.println("book's name:" + book.getName());
        System.out.println("bookVo's name:" + vo.getNamevo());
    }

}