一、编写自定义类型转换器

import org.springframework.core.convert.converter.Converter;import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;public class StringToDate implements Converter<String, Date> {@Overridepublic Date convert(String s) {if(s==null){System.out.println("请输入正确类型");}DateFormat df=new SimpleDateFormat("yyy-MM-dd");try {Date parse = df.parse(s);return parse;} catch (ParseException e) {e.printStackTrace();}return null;}
}

二、配置自定义转换类型

<!--    配置自定义类型转换器--><bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean"><property name="converters"><set><bean class="cn.itcast.untils.StringToDate"></bean></set></property></bean>

三、开启转换器

<mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven>