几个从javabean到xml的类的使用心得

自己原来写过一些，但用过的xstream和castor就摒弃山寨版本了，总体来说这两个都很方便，但各有千秋吧

需要转换的bean

public class TestBean {
	String name;
	int age;
	String phone;
	String address;

	public TestBean(String name, int age, String phone, String address) {
		this.name = name;
		this.age = age;
		this.phone = phone;
		this.address = address;
	}

	public String getName() {
		return name;
	}

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

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public String getPhone() {
		return phone;
	}

	public void setPhone(String phone) {
		this.phone = phone;
	}

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}
}

castor版本

public class Bean2Xml {
	public static void main(String[] args) throws MarshalException,
			ValidationException {
		TestBean tb = new TestBean("aaa", 12, "12345678", "114445");
		long time = System.currentTimeMillis();
		StringWriter sw = new StringWriter();
		Marshaller.marshal(tb, sw);
		System.out.println(System.currentTimeMillis() - time);
		System.out.println(sw.toString());
		System.out.println(sw.toString().length());
	}
}

输出：

引用

2171
<?xml version="1.0" encoding="UTF-8"?>
<test-bean age="12"><address>114445</address><phone>12345678</phone><name>aaa</name></test-bean>
135

xstream版本：

public class Bean2XmlBeta {
    public static void main(String[] args) {
        TestBean tb = new TestBean("aaa", 12, "12345678", "114445");
        long time = System.currentTimeMillis();
        XStream xStream = new XStream();
        xStream.alias("bean", TestBean.class);
        String xml = xStream.toXML(tb);
        System.out.println(System.currentTimeMillis() - time);
        System.out.println(xml);
        System.out.println(xml.length());
    }
}

输出：

引用

145
<bean>
  <name>aaa</name>
  <age>12</age>
  <phone>12345678</phone>
  <address>114445</address>
</bean>
103

稍微解释一下，同一个bean，xstream在转化效率上比castor高了一个数量级。
具体应用中就得看需求了，譬如现在项目需要为flex提供饼图所需要的数据，而flex的饼图组建不支持xstream这样的xml，而需要castor这般的格式，也就只能牺牲效率了。

附件为castoer和xstream的几个jar包，欢迎下载