关于Spring框架中自动转换日期类型的问题

[Sniper2016]

首先一个实体类,封装date,设置getter setter方法

package entity;

import java.io.Serializable;
import java.util.Date;

@SuppressWarnings("serial")
public class Day implements Serializable{
	private Date date;

	public Date getDate() {
		return date;
	}
	public void setDate(Date date) {
		this.date = date;
	}

然后是applicationContext.xml文件的配置,我用setter方法给date注入值,写一个工具让其自动转换成date格式

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="
			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
			http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
			http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
	

	<bean id="day" class="entity.Day">
<!--这里的value我输入字符串类型的日期格式-->
  <property name="date" value="2008-08-08"></property>
	</bean>
<!--配置转换器-->
   <bean id="datePropertyConvert" class="util.DatePropertyConvert"></bean>

      <bean id="customEditorConfigurer" class="org.springframework.beans.factory.config.CustomEditorConfigurer">
        <property name="customEditors">
           <map>
<!--指定转化器要转化的目标类型-->
             <entry key="java.util.Date" value-ref="datePropertyConvert"></entry>
           </map>
        </property>
      </bean>

</beans>

写一个工具类来转换日期格式

package util;

import java.beans.PropertyEditorSupport;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DatePropertyConvert extends PropertyEditorSupport {
	private String formart = "yyyy-MM-dd";

	@Override
	public void setAsText(String text) throws IllegalArgumentException {
		//获取日期格式化对象
		SimpleDateFormat sdf=new SimpleDateFormat(formart);

		try {
              //将字符串类型的日期转换成Date类型
		Date date = sdf.parse(text);
               setValue(date);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		
		
	}

	@Override

	public void setValue(Object value) {
		super.setValue(value);
	}

	@Override
	public String getAsText() {
		return super.getAsText();
	}
}

之后是测试类

package test;

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

import entity.Day;

public class Test {
	public static void main(String[] args) {
		ApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContext.xml");		
		Day d=(Day)ctx.getBean("day");
		System.out.println(d.getDate());

	}
}

然后运行测试类报出如下异常
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customEditorConfigurer' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'datePropertyConvert' while setting bean property 'customEditors' with key [TypedStringValue: value [java.util.Date], target type [null]]; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [util.DatePropertyConvert] for bean with name 'datePropertyConvert' defined in class path resource [applicationContext.xml]; nested exception is java.lang.ClassNotFoundException: util.DatePropertyConvert

求解

[hylrf0]

检查下applicationContext.xml是否能被读取到,还是说需要在前面加classpath:,从报错来看是找不到DatePropertyConvert这个类

[soton_dolphin]

<bean id="datePropertyConvert" class="util.DatePropertyConvert"></bean> 这个tag是不是关早了？？

<bean id="datePropertyConvert" class="util.DatePropertyConvert">
 
      <bean id="customEditorConfigurer" class="org.springframework.beans.factory.config.CustomEditorConfigurer">
        <property name="customEditors">
           <map>
<!--指定转化器要转化的目标类型-->
             <entry key="java.util.Date" value-ref="datePropertyConvert"></entry>
           </map>
        </property>
      </bean>
</bean>

[Sniper2016]

找到了!原来是我util包名写成了utli 改过之后运行通过了 谢谢各位