Spring MVC data Binding 400 error

Scenario: When you use bind data in a method, you open the link and a 400 error occurs.

@RequestMapping(value"editItemSubmit")    publiceditItemSubmit(int id, Items item) {        itemService.updateItemFromId(id, item);        return"redirect:queryItemlList";    }

publicclass Items {    privateint id;    private String name;    privatefloat price;    private String pic;    private Date createtime;    private String detail;

Note: There is a date type in my bean, but spring MVC does not convert the string type of the previous paragraph to the sorted date type, so this error occurs.

WORKAROUND: Use custom parameter bindings (Converter converter mode)

1. Write the converter of the response to implement the fixed interface:

 The first parameter is the original type, the second parameter is the converted type public  class   Customdateconverter  implements  converter  <string , date  > { @Override            Span class= "Hljs-keyword" >public  Date convert (String s) {try  { return  new         SimpleDateFormat ( "Yyyy-mm-dd HH:mm:ss" ). Parse (s);        } catch  (parseexception e) {e.printstacktrace ();    } return  null ; }}

Configure the Format conversion Service Factory Bean:formattingconversionservicefactorybean in the Springmvc.xml configuration file

id="conversionService"class="org.springframework.format.support.FormattingConversionServiceFactoryBean">        <propertyname="converters">            <list>                class="xyz.zhulei.spring_mybatis.controller.convert.CustomDateConverter"/>            </list>        </property>    </bean>

Then add:

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

When you're done, you can automatically complete the string-to-date conversion.

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Spring MVC data Binding 400 error