package com.mj.converter;

import org.springframework.core.convert.converter.Converter;

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

//先创建
//不要倒错包 是有两个泛型的
public class DateConverter implements Converter<String,Date> {

     //定义
    private List<String> formats;

    public void setFormats(List<String> formats) {
        this.formats = formats;
    }


    @Override
    public Date convert(String s) {
        for (String format : formats) {
            try {
                SimpleDateFormat fmt = new SimpleDateFormat(format);
                return fmt.parse(s);
            } catch (ParseException e) {
                // e.printStackTrace();
            }
        }
        return null;
    }
}

xml配置如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       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.xsd">

      <bean id="person" class="com.mj.domain.Person" p:birthday="09_10_2111"/>

      <!-- 配置FactoryBean -->
      <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean">
            <property name="converters">
                  <set>
                        <bean class="com.mj.converter.DateConverter">
                              <property name="formats">
                                    <list>
                                          <value>yyyy-MM-dd</value>
                                          <value>MM_dd_yyyy</value>
                                    </list>
                              </property>
                        </bean>
                  </set>
            </property>
      </bean>

</beans>