/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.geekbang.thinking.in.spring.conversion;
import org.geekbang.thinking.in.spring.ioc.overview.domain.User;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.beans.PropertyEditor;
/**
* Spring 自定义 {@link PropertyEditor} 示例
*
* @author <a href="mailto:[email protected]">Mercy</a>
* @see PropertyEditor
* @since
*/
public class SpringCustomizedPropertyEditorDemo {
public static void main(String[] args) {
// 创建并且启动 BeanFactory 容器，
ConfigurableApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:/META-INF/property-editors-context.xml");
// AbstractApplicationContext -> "conversionService" ConversionService Bean
// -> ConfigurableBeanFactory#setConversionService(ConversionService)
// -> AbstractAutowireCapableBeanFactory.instantiateBean
// -> AbstractBeanFactory#getConversionService ->
// BeanDefinition -> BeanWrapper -> 属性转换（数据来源：PropertyValues）->
// setPropertyValues(PropertyValues) -> TypeConverter#convertIfNecessnary
// TypeConverterDelegate#convertIfNecessnary -> PropertyEditor or ConversionService
User user = applicationContext.getBean("user", User.class);
System.out.println(user);
// 显示地关闭 Spring 应用上下文
applicationContext.close();
}
}
