转载自：http://cxytiandi.com/blog/detail/8101

叙述

今天在post添加数据时，由于接收参数的实体类中的日期是Date类型，导致提交到后台报错。

参数提交上来时是字符串，需要转换成日期类型才可以。

解决

代码实现：

import java.text.SimpleDateFormat; import java.util.Date; import org.apache.commons.lang3.StringUtils; import org.springframework.core.convert.converter.Converter; /** * 日期转换器，解决在post请求中日期类型参数自动转Date类型 * @author yinjihuan * */ public class StringToDateConverter implements Converter<String, Date> { private static final String dateFormat = "yyyy-MM-dd HH:mm:ss"; private static final String shortDateFormat = "yyyy-MM-dd"; private static final String dateFormat2 = "yyyy/MM/dd HH:mm:ss"; private static final String shortDateFormat2 = "yyyy/MM/dd"; @Override public Date convert(String source) { if (StringUtils.isBlank(source)) { return null; } source = source.trim(); try { SimpleDateFormat formatter; if (source.contains("-")) { if (source.contains(":")) { formatter = new SimpleDateFormat(dateFormat); } else { formatter = new SimpleDateFormat(shortDateFormat); } Date dtDate = formatter.parse(source); return dtDate; } else if (source.contains("/")) { if (source.contains(":")) { formatter = new SimpleDateFormat(dateFormat2); } else { formatter = new SimpleDateFormat(shortDateFormat2); } Date dtDate = formatter.parse(source); return dtDate; } } catch (Exception e) { throw new RuntimeException(String.format("parser %s to Date fail", source)); } throw new RuntimeException(String.format("parser %s to Date fail", source)); } } import javax.annotation.PostConstruct; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Configuration; import org.springframework.core.convert.support.GenericConversionService; import org.springframework.web.bind.support.ConfigurableWebBindingInitializer; import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter; import com.fangjia.amp.common.StringToDateConverter; @Configuration public class WebConfigBeans { @Autowired private RequestMappingHandlerAdapter handlerAdapter; /** * 增加字符串转日期的功能 */ @PostConstruct public void initEditableValidation() { ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer) handlerAdapter.getWebBindingInitializer(); if (initializer.getConversionService() != null) { GenericConversionService genericConversionService = (GenericConversionService) initializer.getConversionService(); genericConversionService.addConverter(new StringToDateConverter()); } } }