Springmvc 注入字符串与时间格式的转换

阅读更多

以下列出两种spring支持的时间转换
-、方式一
   1、字符串转时间
   

 
    @DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")
    private Date startTime;

   2、字符串转时间亦可以，这个加载controller控制层即可
  

@InitBinder  
public void initBinder(WebDataBinder binder) {  
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");  
dateFormat.setLenient(false);  
binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true)); 

  3、时间转字符串
  @JsonFormat(pattern="yyyy-MM-dd HH:mm:ss", timezone="GMT+8")
    private Date startTime;
二、方式二（序列化）
   JsonSerialize：时间为字符串格式
   JsonDeserialize ：字符串转时间
  

    @JsonSerialize(using = JsonDateSerializer$19.class)
    @JsonDeserialize(using = JsonDateDeserializer$19.class)
    private Date updateTime;

  

package com.ppfuns.mediaasset.core.common;

import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.SerializerProvider;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

@Component
public class JsonDateSerializer$19 extends JsonSerializer {

    SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    @Override
    public void serialize(Date value, JsonGenerator jgen, SerializerProvider provider) throws IOException,
            JsonProcessingException {
        String formattedDate = formatter.format(value);
        jgen.writeString(formattedDate);
    }
}
  

 

package com.ppfuns.mediaasset.core.common;

import org.apache.commons.lang.StringUtils;
import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.DeserializationContext;
import org.codehaus.jackson.map.JsonDeserializer;

import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * TODO: 字符串转时间格式为yyyy-MM-dd HH:mm:ss
 * 
 * @author jiandequn
 * @date 2014-6-24 上午10:07:19
 * @version 0.1.0 
 * @copyright yougou.com 
 */
public class JsonDateDeserializer$19 extends JsonDeserializer {

	private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

	@Override
	public Date deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {
		String str = jp.getText().trim();
		if (StringUtils.isEmpty(str)) {
			return null;
		}
		try {
			return formatter.parse(str);
		} catch (ParseException e) {
			e.printStackTrace();
			return null;
		}
	}

}

 
MAVEN依赖的包

   
 3             org.codehaus.jackson
 4             jackson-mapper-asl
 5             ${jackson.version}
 6         
 7         
 8             com.fasterxml.jackson.core
 9             jackson-core
10             ${jackson.core.version}
11         
12         
13             com.fasterxml.jackson.core
14             jackson-databind
15             ${jackson.core.version}
16         
17 
18 
19 
20         1.9.13
21         2.4.2
22