springmvc配置全局的日期轉換器

爲什麼要配置日期轉換器呢？

因爲springmvc沒有內置轉換，當你提交日期格式的數據後傳到後臺後默認當作String類型的數據，就會報

HTTP Status 500 - Failed to convert value of type 'java.lang.String' to required type 'java.util.Date'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [java.lang.String] to required type [java.util.Date]: no matching editors or conversion strategy found

1.在springmvc配置文件中配置

<!-- 配置全局的日期轉化器 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="webBindingInitializer">
<bean class="cn.itcast.core.web.CustomDateEdtor"/>
</property>
</bean>

2編寫實現類實現WebBindingInitializer接口

package cn.itcast.core.web;


import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.support.WebBindingInitializer;
import org.springframework.web.context.request.WebRequest;


/**
 * 日期轉換器
 * @author Bertram
 *
 */
public class CustomDateEdtor implements WebBindingInitializer{


public void initBinder(WebDataBinder binder, WebRequest request) {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true));


}


}