spring 自定义schema

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

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1. <?xml version="1.0" encoding="UTF-8"?>  
2. <xsd:schema xmlns="http://www.luyee.com/bat/schema/people"  
3.     xmlns:xsd="http://www.w3.org/2001/XMLSchema"   
4.     xmlns:beans="http://www.springframework.org/schema/beans"  
5.     targetNamespace="http://www.luyee.com/bat/schema/people"  
6.     elementFormDefault="qualified"   
7.     attributeFormDefault="unqualified">  
8.     <xsd:import namespace="http://www.springframework.org/schema/beans" />  
9.       
10.     <xsd:element name="student">  
11.      <xsd:complexType>    
12.             <xsd:complexContent>    
13.                 <xsd:extension base="beans:identifiedType">   
14.                    
15.                     <xsd:attribute name="name"  
16.                         type="xsd:string">  
17.                         <xsd:annotation>  
18.                             <xsd:documentation>  
19.                                 姓名   
20.                             </xsd:documentation>  
21.                         </xsd:annotation>  
22.                     </xsd:attribute>   
23.                        
24.                     <xsd:attribute name="age"  
25.                         type="xsd:string">  
26.                         <xsd:annotation>  
27.                             <xsd:documentation>  
28.                                 年龄  
29.                             </xsd:documentation>  
30.                         </xsd:annotation>  
31.                     </xsd:attribute>    
32.                      
33.                 </xsd:extension>    
34.             </xsd:complexContent>    
35.         </xsd:complexType>    
36.     </xsd:element>    
37.    </xsd:schema>  

spring.handlers;

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

spring.schemas

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

StudentNamespaceHandler和StudentBeanDefinitionParser

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1. package com.luyee.bat.spring;  
2.   
3. import java.text.SimpleDateFormat;  
4.   
5. import org.springframework.beans.factory.support.BeanDefinitionBuilder;  
6. import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;  
7. import org.springframework.beans.factory.xml.NamespaceHandlerSupport;  
8. import org.springframework.util.StringUtils;  
9. import org.w3c.dom.Element;  
10.   
11. public class StudentNamespaceHandler  extends NamespaceHandlerSupport {  
12.   
13.     public void init() {  
14.         registerBeanDefinitionParser("student", new StudentBeanDefinitionParser());    
15.     }  
16.       
17.     class StudentBeanDefinitionParser extends AbstractSingleBeanDefinitionParser{  
18.          protected Class getBeanClass(Element element) {    
19.                 return Student.class;    
20.             }    
21.             
22.             protected void doParse(Element element, BeanDefinitionBuilder bean) {    
23.                 String name = element.getAttribute("name");    
24.                 bean.addPropertyValue("name", name);    
25.   
26.                 String age = element.getAttribute("age");    
27.                 if (StringUtils.hasText(age)) {    
28.                     bean.addPropertyValue("age", Integer.valueOf(age));    
29.                 }    
30.             }    
31.     }  
32. }  

JavaBean:Student

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1. package com.luyee.bat.spring;  
2.   
3. public class Student {  
4.       
5.     private String name;  
6.       
7.     private int age;  
8.   
9.     public String getName() {  
10.         return name;  
11.     }  
12.   
13.     public void setName(String name) {  
14.         this.name = name;  
15.     }  
16.   
17.     public int getAge() {  
18.         return age;  
19.     }  
20.   
21.     public void setAge(int age) {  
22.         this.age = age;  
23.     }  
24.       
25.       
26.   
27. }  

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

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1. <?xml version="1.0" encoding="UTF-8"?>    
2. <beans xmlns="http://www.springframework.org/schema/beans"    
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
4.     xmlns:people="http://www.luyee.com/bat/schema/people"    
5.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
6.     http://www.luyee.com/bat/schema/people http://www.luyee.com/bat/schema/people.xsd" >    
7.     <people:student id="student1" name="student1"    
8.         age="18" />    
9.           
10.     <people:student id="student2" name="student2"    
11.         age="20" />    
12.     
13. </beans>   

StudentXsdTest.java

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1. package com.luyee.bat.spring;  
2.   
3.     
4. import org.springframework.context.ApplicationContext;    
5. import org.springframework.context.support.ClassPathXmlApplicationContext;    
6.     
7. public class StudentXsdTest {    
8.     
9.     public static void main(String[] args) {    
10.         ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");    
11.         Student student1 = (Student) ctx.getBean("student1");    
12.         Student student2 = (Student) ctx.getBean("student2");    
13.         System.out.println("name: " +student1.getName()+" age :" + student1.getAge());    
14.         System.out.println("name: " +student2.getName()+" age :" + student2.getAge());    
15.     }    
16. }    

输出：

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1. 八月 13, 2013 8:50:50 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh  
2. INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@46f7ba12: startup date [Tue Aug 13 20:50:50 CST 2013]; root of context hierarchy  
3. 八月 13, 2013 8:50:50 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions  
4. INFO: Loading XML bean definitions from class path resource [applicationContext.xml]  
5. 八月 13, 2013 8:50:52 下午 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons  
6. INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@25e9a396: defining beans [student1,student2]; root of factory hierarchy  
7. name: student1 age :18  
8. name: student2 age :20  

最后贴个文件结构

http://blog.csdn.net/luyee2010/article/details/9954941