SpringMVC09 Converter Converter, data echo, anomaly test

1. Configuring the Web. xml file

<! DOCTYPE web-app Public"-//sun Microsystems, INC.//DTD Web application 2.3//en" "Http://java.sun.com/dtd/web-app_2_3.dtd" ><web-app&    Gt <display-name>archetype Created Web application</display-name> <filter> <filter-name>cha Racterencodingfilter</filter-name> <filter-class>org.springframework.web.filter.characterencodingfilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf- 8</param-value> </init-param> <init-param> <param-name>forceencoding</ Param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>cha Racterencodingfilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-na Me> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init -param> <param-name>contextConfigLocation</param-name> <param-value>classpath:s pring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> &L t;/servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern >/</url-pattern> </servlet-mapping></web-app>

2. Custom Date Converter

Importorg.springframework.beans.TypeMismatchException;ImportOrg.springframework.core.convert.converter.Converter;ImportJava.text.DateFormat;Importjava.text.ParseException;ImportJava.text.SimpleDateFormat;Importjava.util.Date;ImportJava.util.regex.Pattern; Public classMydateconverterImplementsConverter<string, date> {     Publicdateformat GetDateFormat (String str) {DateFormat SDF=NULL; //str 2017/08/20 str 2017-08-20 STR August 20, 2017//Pattern matching regular metacharacters (used for matching or qualifying)        if(Pattern.matches ("^\\d{4}-\\d{2}-\\d{2}$", str)) {SDF=NewSimpleDateFormat ("Yyyy-mm-dd"); } Else if(Pattern.matches ("^\\d{4}/\\d{2}/\\d{2}$", str)) {SDF=NewSimpleDateFormat ("Yyyy/mm/dd"); } Else if(Pattern.matches ("^\\d{4} Year \\d{2} month \\d{2} Day $", str)) {            //This is a Chinese character, so configure filter in Web. XML to encode the format UTF-8SDF =NewSimpleDateFormat ("yyyy mm month DD Day"); } Else {            Throw NewTypemismatchexception ("", Date.class);        //Exception throw } returnSDF; }     PublicDate convert (String str) {//A string of a specific format, converted to a dateDateFormat SDF =GetDateFormat (str); Try{Date Date=sdf.parse (str); returndate; } Catch(ParseException e) {e.printstacktrace (); }        return NULL; }}

3. Date format processor

Importorg.springframework.beans.TypeMismatchException;ImportOrg.springframework.stereotype.Controller;ImportOrg.springframework.web.bind.annotation.ExceptionHandler;Importorg.springframework.web.bind.annotation.RequestMapping;ImportOrg.springframework.web.servlet.ModelAndView;Importjava.util.Date; @Controller Public classFirstcontroller {@ExceptionHandler (typemismatchexception.class)     PublicModelandview resovleexception (Exception ex) {System.out.println ("111111111111111111"); Modelandview MV=NewModelandview (); if(exinstanceoftypemismatchexception) {Mv.setviewname ("/typeconverter.jsp"); }        //carry Exception Log to pageMv.addobject ("datamsg", Ex.getmessage ()); returnMV; } @RequestMapping ("/first")    //The type conversion work must be performed before the actual handler method executes.     PublicString Dofirst (Date birthday,intAgethrowsException {System.out.println ("222222222222222222222"); System.out.println (Birthday+ "==========="); System.out.println ( Age+ "==============="); return"/index.jsp"; }}

4. Mapper

<?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 http://www.springframework.org/schema/beans/spring-beans.xsdhttp//Www.springframework.org/schema/contexthttp//www.springframework.org/schema/context/spring-context.xsdhttp//Www.springframework.org/schema/mvchttp//www.springframework.org/schema/mvc/spring-mvc.xsd "><context:component-scan base- Package= "Cn.happy"/> <!--Register Converter--<bean id= "DateConverter"class= "Cn.happy.converter.MyDateConverter"/> <!--registration Service factory--<bean id= "Servicefactory"class= "Org.springframework.context.support.ConversionServiceFactoryBean" > <property name= "Converters" ref= " DateConverter "/> </bean> <!--registration drive to affiliate registration Service factory--<mvc:annotation-driven conversion-service=" s Ervicefactory "/></beans>

5.1: Registration page

<%@ page contenttype= "Text/html;charset=utf-8" language= "Java" iselignored= "false"%>    Date of birth:<input name=" Birthday "value=" ${ MyDate} "/><span>${datamsg}</span><br/><br/>     Age:<input name= "Age" value= "${age}"/><br/><br/>    <input type= "Submit" value= "register"/></form></body >
5.2: Success Page
Test result 1:
Test Result 2:
Test Result 3:
Test Result 4:
SpringMVC09 Converter Converter, data echo, anomaly test