基于Spring自定义标签

<?xml version="1.0" encoding="UTF-8"?>
<!-- xmlns="http://www.huhx.com/schema/ch"  -->
<xsd:schema xmlns="http://www.huhx.com/schema/ch"
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:beans="http://www.springframework.org/schema/beans"
            targetNamespace="http://www.huhx.com/schema/ch"
            elementFormDefault="qualified"
            attributeFormDefault="unqualified">

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

	<!-- 
		xsd:element     表示定义标签  
		xsd:extension  如java中的继承，把现有的定义继承进来  
		xsd:attribute    标签带有的属性  
		xsd:complexType 元素定义复杂类型
		xsd:complexContent 元素定义对复杂类型（包含混合内容或仅包含元素）的扩展或限制。
	-->
    <xsd:element name="dateformat">
        <xsd:complexType>
            <xsd:complexContent>
            	<!-- 继承定义 从namespace="http://www.springframework.org/schema/beans" -->
                <xsd:extension base="beans:identifiedType">
                    <xsd:attribute name="lenient" type="xsd:boolean"/>
                    <xsd:attribute name="pattern" type="xsd:string" use="required"/>
                </xsd:extension>
            </xsd:complexContent>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>

http\://www.huhx.com/schema/ch=cn.edu.his.pay.handler.MyNamespaceHandler

http\://www.huhx.com/schema/ch.xsd=META-INF/huhx.xsd

package cn.edu.his.pay.handler;

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

public class MyNamespaceHandler extends NamespaceHandlerSupport {
    @Override
    public void init() {
        registerBeanDefinitionParser("dateformat", new SimpleDateFormatBeanDefinitionParser());
    }
}

package cn.edu.his.pay.handler;

import java.text.SimpleDateFormat;

import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;

public class SimpleDateFormatBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {

    protected Class getBeanClass(Element element) {
        return SimpleDateFormat.class;
    }

    protected void doParse(Element element, BeanDefinitionBuilder bean) {
        String pattern = element.getAttribute("pattern");
        bean.addConstructorArgValue(pattern);

        String lenient = element.getAttribute("lenient");
        if (StringUtils.hasText(lenient)) {
            bean.addPropertyValue("lenient", Boolean.valueOf(lenient));
        }
    }
}

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:task="http://www.springframework.org/schema/task" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa"
	xmlns:ch="http://www.huhx.com/schema/ch"
	xsi:schemaLocation="
	http://www.springframework.org/schema/util
	http://www.springframework.org/schema/util/spring-util-4.0.xsd
	http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
	http://www.springframework.org/schema/context 
	http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
	http://www.springframework.org/schema/aop 
	http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
	http://www.springframework.org/schema/jdbc 
	http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
	http://www.springframework.org/schema/tx 
	http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/data/jpa 
	http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
	http://www.springframework.org/schema/task 
	http://www.springframework.org/schema/task/spring-task-3.0.xsd
	http://www.huhx.com/schema/ch
	http://www.huhx.com/schema/ch.xsd">
	
	<ch:dateformat id="dateFormat" pattern="yyyy-MM-dd HH:mm" lenient="true"/>
</beans>

package cn.edu.his.pay.handler;

import java.text.SimpleDateFormat;
import java.util.Date;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext("spring/spring-dispatcher.xml");
		SimpleDateFormat info = (SimpleDateFormat) context.getBean("dateFormat");

		System.out.println("自定义的dateFormat:"+info.format(new Date()));
		System.out.println("系统的dateFormat:"+new SimpleDateFormat().format(new Date()));
		
		/*
		自定义的dateFormat:2018-05-08 12:38
		系统的dateFormat:18-5-8 下午12:38
		*/
	}
}

@Controller
public class DateformatController {
	
	@Autowired
	@Qualifier("dateFormat")
	private SimpleDateFormat date;
	
	@ResponseBody
	@RequestMapping("/date")
	public String date(){
		return date.format(new Date());
	}
}