JAXB学习笔记(一)

项目为了进行xml与java bean的互转，参考了各位网友的推荐，最后选型为JAXB，闲暇之余整理了一下笔记。废话不多说，上代码
当然JDK至少是1.6的啊，好处是再不需要其他的包

这里构造一个persion对象，很简单，先来看第一个简单的例子，进入到JAXB的世界

Java代码
package cn.uyunsky.blog.xml.demo1;

import java.io.StringReader;
import java.io.StringWriter;
import java.util.Date;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

/**
* <p>先来个简单的</p>
*/
@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Persion {

    private Integer userid;
    private String username;
    private Date birthday;

    public Integer getUserid() {
        return userid;
    }

    public void setUserid(Integer userid) {
        this.userid = userid;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append("Persion [userid=");
        builder.append(userid);
        builder.append(", username=");
        builder.append(username);
        builder.append(", birthday=");
        builder.append(birthday);
        builder.append("]");
        return builder.toString();
    }

    public static void main(String[] args) {
        try {
            JAXBContext jaxbContext = JAXBContext.newInstance(Persion.class);
            Persion persion = new Persion();

            persion.setUserid(112);
            persion.setUsername("就不告诉你");
            persion.setBirthday(new Date());

            Marshaller marshaller = jaxbContext.createMarshaller();
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

            StringWriter writer = new StringWriter();
            marshaller.marshal(persion, writer);
            String xml = writer.getBuffer().toString();
            System.out.println(xml);

            Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
            Object bean = unmarshaller.unmarshal(new StringReader(xml));
            System.out.println(bean);

        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }

}

执行结果

Xml代码
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<persion>
    <userid>112</userid>
    <username>就不告诉你</username>
    <birthday>2011-09-28T11:06:29.734+08:00</birthday>
</persion>

Persion [userid=112, username=就不告诉你, birthday=Wed Sep 28 11:06:29 CST 2011]
下来我们再深入些，看看其他情况下的处理，请看下节

作者“有云的天空”

补充：软件开发 , Java ,