关于在spring框架中注入日期bean的疑问
在下面的代码中我只在java的main函数中调用了bean为customer名的bean为什么spring可以自动转换为date类型的变量在main函数中输出???????main函数:
ackage com.yiibai.common;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class App {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext(
"SpringBeans.xml");
Customer cust = (Customer) context.getBean("customer");
System.out.println(cust);
}
}
对应的xml文件的配置:
<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
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="dateEditor"
class="org.springframework.beans.propertyeditors.CustomDateEditor">
<constructor-arg>
<bean class="java.text.SimpleDateFormat">
<constructor-arg value="yyyy-MM-dd" />
</bean>
</constructor-arg>
<constructor-arg value="true" />
</bean>
<bean class="org.springframework.beans.factory.config.CustomEditorConfigurer">
<property name="customEditors">
<map>
<entry key="java.util.Date">
<ref local="dateEditor" />
</entry>
</map>
</property>
</bean>
<bean id="customer" class="com.yiibai.common.Customer">
<property name="date" value="2015-12-31" />
</bean>
</beans> 因该是 customer 这个类里面有toString方法你输出了date 这个属性了
<bean id="customer" class="com.yiibai.common.Customer">
<property name="date" value="2015-12-31" />
</bean>
这里你就已经给他赋值了
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