------------吾亦无他,唯手熟尔，谦卑若愚，好学若饥-------------
本案例是上面的异常和日期类型转换结合的一个小小的Demo
案例开始
1.自定义处理器和处理方法：
package cn.dawn.day19typeconverter;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import java.util.Date;
/**
* Created by Dawn on 2018/3/28.
*/
@Controller
public class TypeConverterController {
/*作用于这俩个*/
@ExceptionHandler
public ModelAndView resolveException(Exception ex, HttpServletRequest request) {
ModelAndView modelAndView=new ModelAndView();
/*给username回显*/
modelAndView.addObject("username",request.getParameter("username"));
/*返回的异常对象*/
modelAndView.addObject("ex",ex);
/*发生异常返回登陆页*/
modelAndView.setViewName("login");
return modelAndView;
}
/*做日期类型*/
@RequestMapping("/dateconverter1")
public String dateconverter1(String username, Integer userage, Date birthday) throws Exception {
System.out.println(username);
System.out.println(userage);
System.out.println(birthday);
return "success";
}
}
2.自己的xml大配置文件：
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!--包扫描器-->
<context:component-scan base-package="cn.dawn.day19typeconverter"></context:component-scan>
<!--视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/day19/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
3.修改web.xml中央调度器的上下文配置位置为上面那个xml
4.jsp页面：
4.1login.jsp
<%@ page pageEncoding="UTF-8" contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h2>登录</h2>
<form action="${pageContext.request.contextPath}/dateconverter1" method="post">
用户名:<input name="username" value="${username}">
年龄:<input name="userage">
生日:<input name="birthday">
<input type="submit" value="登录"/>
</form>
</body>
</html>
4.2success.jsp
<%@ page language="java" pageEncoding="utf-8" isELIgnored="false" %>
<html>
<body>
<%--<img src="image/1.jpg">--%>
<h2>Success!</h2>
</body>
</html>
结论：什么时候跳到成功页面？就是日期格式不出错，日期格式必须为yyyy/MM/dd,SpringMVC默认的自动转换日期格式必须传入的是这个
下篇博客就做自定义类型转换器
