springmvc请求参数类型转换器和原生api

一、springmvc的xml配置文件

<?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:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--扫描组件-->
    <context:component-scan base-package="com.wuxi"></context:component-scan>
    <!--视图解析器-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
    <!--参数类型装换器-->
    <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean">
        <property name="converters">
            <set>
                <bean class="com.wuxi.utils.StringToDateConverter"></bean>
            </set>
        </property>
    </bean>
    <!--开启springmvc框架注解的支持-->
    <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven>
</beans>

二、转换的类

package com.wuxi.utils;

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

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

public class StringToDateConverter implements Converter<String, Date> {
    @Override
    public Date convert(String string) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date date = null;
        try {
            date = sdf.parse(string);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }
}

三、接口

@RequestMapping("/student")
public String student(Student student, HttpServletRequest request, HttpServletResponse response) {
    System.out.println(student);
    return "success";
}