1. 继承 PropertyEditorSupport 重写 setAsText 方法
import java.beans.PropertyEditorSupport;
public class StringToArrayEditor extends PropertyEditorSupport {
@Override
public void setAsText(String text) throws IllegalArgumentException {
//接收Text的值并处理
String[] split = text.split(",");
//处理后临时存储值
setValue(split);
}
}
2.实现 org.springframework.beans.PropertyEditorRegistrar接口,重写 registerCustomEditors 方法
import org.springframework.beans.BeansException;
import org.springframework.beans.PropertyEditorRegistrar;
import org.springframework.beans.PropertyEditorRegistry;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
public class MyConversionRegistor implements PropertyEditorRegistrar, BeanFactoryPostProcessor {
@Override
public void registerCustomEditors(PropertyEditorRegistry registry) {
registry.registerCustomEditor(String[].class,new StringToArrayEditor());
}
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
beanFactory.addPropertyEditorRegistrar(this);
}
}
3.刷新容器,获取bean
package com.sz;
import com.sz.pojo.MyNumber;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class App {
public static void main(String[] args) {
ConfigurableApplicationContext app = new ClassPathXmlApplicationContext("META-INF/Instanation.xml");
MyNumber bean = app.getBean(MyNumber.class);
System.out.println("bean = " + bean);
//输出结果
// Number{member=[1, 2, 3, 4, 5, 6, 7, 8, 9]}
}
}
xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="conversionRegistor" class="com.sz.MyConversionRegistor"/>
<bean id="number" class="com.sz.pojo.MyNumber">
<property name="member">
<value>1-2-3-4-5-6-7-8-9</value>
</property>
</bean>
</beans>