json 日期格式转换

json 日期格式转换

1.bean中属性getter增加格式化注释

  private Date upTime;

 

  @JsonSerialize(using=JsonDateSerializer.class)

  public Date getUpTime() {

      return upTime;

  }

 

  public void setUpTime(Date upTime) {

      this.upTime = upTime;

  }

 

2.定义格式化类

public class JsonDateSerializer extends JsonSerializer<Date> {

  private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");

 

  @Override

  public void serialize(Date arg0, JsonGenerator arg1, SerializerProvider arg2)

          throws IOException, JsonProcessingException {

      // TODO Auto-generated method stub

      String formattedDate = dateFormat.format(arg0);

      arg1.writeString(formattedDate);

  }

}