扩展schema,定义自己的bean属性。。不错！

主要：

1，定义META-INF下.xsd文件，这里是people.xsd;定义spring.handlers;定义spring.schemas

2,定义namaspace解析类,这里是StudentNamespaceHandler

3,定义beanDefinition，这里是StudentBeanDefinitionParser

4,当然还有相关的javabean定义，这里是Student.java

详细代码：

people.xsd

<?xml version="1.0" encoding="UTF-8"?>

<xsd:schema xmlns="http://www.luyee.com/bat/schema/people"

	xmlns:xsd="http://www.w3.org/2001/XMLSchema"

	xmlns:beans="http://www.springframework.org/schema/beans"

	targetNamespace="http://www.luyee.com/bat/schema/people"

	elementFormDefault="qualified"

	attributeFormDefault="unqualified">

    <xsd:import namespace="http://www.springframework.org/schema/beans" />

	<xsd:element name="student">

	 <xsd:complexType>

            <xsd:complexContent>

                <xsd:extension base="beans:identifiedType"> 

                   	<xsd:attribute name="name"

						type="xsd:string">

						<xsd:annotation>

							<xsd:documentation>

								姓名

							</xsd:documentation>

						</xsd:annotation>

					</xsd:attribute> 

                   	<xsd:attribute name="age"

						type="xsd:string">

						<xsd:annotation>

							<xsd:documentation>

								年龄

							</xsd:documentation>

						</xsd:annotation>

					</xsd:attribute>  

                </xsd:extension>

            </xsd:complexContent>

        </xsd:complexType>

    </xsd:element>

   </xsd:schema>

spring.handlers;

http\://www.luyee.com/bat/schema/people=com.luyee.bat.spring.StudentNamespaceHandler

spring.schemas

http\://www.luyee.com/bat/schema/people.xsd=META-INF/people.xsd

StudentNamespaceHandler和StudentBeanDefinitionParser

package com.luyee.bat.spring;

import java.text.SimpleDateFormat;

import org.springframework.beans.factory.support.BeanDefinitionBuilder;

import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;

import org.springframework.beans.factory.xml.NamespaceHandlerSupport;

import org.springframework.util.StringUtils;

import org.w3c.dom.Element;

public class StudentNamespaceHandler  extends NamespaceHandlerSupport {

	public void init() {

		registerBeanDefinitionParser("student", new StudentBeanDefinitionParser());

	}

	class StudentBeanDefinitionParser extends AbstractSingleBeanDefinitionParser{

		 protected Class getBeanClass(Element element) {

		        return Student.class;

		    }  

		    protected void doParse(Element element, BeanDefinitionBuilder bean) {

		        String name = element.getAttribute("name");

		        bean.addPropertyValue("name", name);  

		        String age = element.getAttribute("age");

		        if (StringUtils.hasText(age)) {

		            bean.addPropertyValue("age", Integer.valueOf(age));

		        }

		    }

	}

}

JavaBean:Student

package com.luyee.bat.spring;

public class Student {

	private String name;

	private int age;

	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;

	}

}

测试：applicationContex.xml（people:student就好比bean）

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns:people="http://www.luyee.com/bat/schema/people"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd

    http://www.luyee.com/bat/schema/people http://www.luyee.com/bat/schema/people.xsd" >

    <people:student id="student1" name="student1"

        age="18" />  

    <people:student id="student2" name="student2"

        age="20" />  

</beans> 

StudentXsdTest.java

package com.luyee.bat.spring;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;  

public class StudentXsdTest {  

    public static void main(String[] args) {

        ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");

        Student student1 = (Student) ctx.getBean("student1");

        Student student2 = (Student) ctx.getBean("student2");

        System.out.println("name: " +student1.getName()+" age :" + student1.getAge());

        System.out.println("name: " +student2.getName()+" age :" + student2.getAge());

    }

}

输出：

八月 13, 2013 8:50:50 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh

INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@46f7ba12: startup date [Tue Aug 13 20:50:50 CST 2013]; root of context hierarchy

八月 13, 2013 8:50:50 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions

INFO: Loading XML bean definitions from class path resource [applicationContext.xml]

八月 13, 2013 8:50:52 下午 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons

INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@25e9a396: defining beans [student1,student2]; root of factory hierarchy

name: student1 age :18

name: student2 age :20

最后贴个文件结构