SpringMVC自定义日期类型的数据绑定(帅)

package com.micmiu.demo.web.v1.utils;

import java.text.SimpleDateFormat;

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;

/**
 * 自定义日期、时间的类型绑定
 *
 * @author  */
public class MyDataBinding implements WebBindingInitializer {

	public void initBinder(WebDataBinder binder, WebRequest request) {
		SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
		dateFormat.setLenient(false);

		SimpleDateFormat datetimeFormat = new SimpleDateFormat(
				"yyyy-MM-dd HH:mm:ss");
		datetimeFormat.setLenient(false);

		binder.registerCustomEditor(java.util.Date.class, new CustomDateEditor(
				dateFormat, true));
		binder.registerCustomEditor(java.sql.Timestamp.class,
				new CustomTimestampEditor(datetimeFormat, true));
	}
}

package com.micmiu.demo.web.v1.utils;

import java.beans.PropertyEditorSupport;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import org.springframework.util.StringUtils;
import java.text.ParseException;

/**
 * Property editor for <code>java.sql.Timestamp</code>,<br>
 * supporting a custom <code>java.text.DateFormat</code>.
 *
 * @author 
 */
public class CustomTimestampEditor extends PropertyEditorSupport {

	private final SimpleDateFormat dateFormat;
	private final boolean allowEmpty;
	private final int exactDateLength;

	public CustomTimestampEditor(SimpleDateFormat dateFormat, boolean allowEmpty) {
		this.dateFormat = dateFormat;
		this.allowEmpty = allowEmpty;
		this.exactDateLength = -1;
	}

	public CustomTimestampEditor(SimpleDateFormat dateFormat,
			boolean allowEmpty, int exactDateLength) {
		this.dateFormat = dateFormat;
		this.allowEmpty = allowEmpty;
		this.exactDateLength = exactDateLength;
	}

	public void setAsText(String text) throws IllegalArgumentException {
		if ((this.allowEmpty) && (!(StringUtils.hasText(text)))) {
			setValue(null);
		} else {
			if ((text != null) && (this.exactDateLength >= 0)
					&& (text.length() != this.exactDateLength)) {
				throw new IllegalArgumentException(
						"Could not parse date: it is not exactly"
								+ this.exactDateLength + "characters long");
			}
			try {
				setValue(new Timestamp(this.dateFormat.parse(text).getTime()));
			} catch (ParseException ex) {
				throw new IllegalArgumentException("Could not parse date: "
						+ ex.getMessage(), ex);
			}
		}
	}

	public String getAsText() {
		Timestamp value = (Timestamp) getValue();
		return ((value != null) ? this.dateFormat.format(value) : "");
	}
}

修改spring-mvc 的配置文件，添加 webBindingInitializer 属性的注入配置：

<!--Spring3.1 之后的自定义注解 HandlerAdapter -->
<bean
	class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
	<property name="webBindingInitializer">
		<bean class="com.micmiu.demo.web.v1.utils.MyDataBinding" />
	</property>
	<property name="messageConverters">
		<list>
			<bean
				class="org.springframework.http.converter.ByteArrayHttpMessageConverter" />
			<bean
				class="org.springframework.http.converter.StringHttpMessageConverter">
				<property name="writeAcceptCharset" value="false" />
				<property name="supportedMediaTypes">
					<list>
						<value>text/plain;charset=UTF-8</value>
						<value>*/*;charset=UTF-8</value>
					</list>
				</property>
			</bean>
			<bean
				class="org.springframework.http.converter.xml.SourceHttpMessageConverter" />
			<bean
				class="org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter" />
			<bean
				class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
		</list>
	</property>
</bean>

使用了spring3.2提供的全局@ControllerAdvice，代码如下：

@ControllerAdvice
public class GlobalController {

@InitBinder
public void initBinder(WebDataBinder binder) {
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
dateFormat.setLenient(false);

SimpleDateFormat datetimeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
datetimeFormat.setLenient(false);

//自动转换日期类型的字段格式
binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true));
binder.registerCustomEditor(java.sql.Timestamp.class, new CustomTimestampEditor(datetimeFormat, true));

//防止XSS攻击
binder.registerCustomEditor(String.class, new StringEscapeEditor(true, false));
}
}