spring boot做前后分离时间格式化

最近在用spring boot 做数据接口时难免遇到时间这类的问题，接口原则：能服务端处理的别留给客户端。客户端的职责就是把服务端的数据完美的展现出来就好了。所以在返回时间的时候最好先进行一下格式化处理，不要返回时间戳格式。

一、写一个Serializer

然后做一个时间格式化的处理

package info.xiaomo.core.filter;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

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

public class CustomDateSerializer extends JsonSerializer<Date> {

    @Override
    public void serialize(Date value, JsonGenerator jsonGenerator, SerializerProvider provider) throws IOException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        jsonGenerator.writeString(sdf.format(value));
    }
}

二、 使用

在需要转换的时间的Model中加上这个类,仔细观察下面代码中类型为Date的属性

package info.xiaomo.core.model.base;

import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import info.xiaomo.core.filter.CustomDateSerializer;

import javax.persistence.*;
import java.util.Date;

/**
 * 把今天最好的表现当作明天最新的起点．．～
 * いま 最高の表現 として 明日最新の始発．．～
 * Today the best performance  as tomorrow newest starter!
 * Created by IntelliJ IDEA.
 *
 * @author: xiaomo
 * @github: https://github.com/houko
 * @email: hupengbest@163.com
 * @QQ_NO: 83387856
 * @Date: 2016/4/1 20:37
 * @Description: model基类
 * @Copyright(©) 2015 by xiaomo.
 **/

@MappedSuperclass
public abstract class BaseModel {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "Id")
    private long id;

    @Version
    @Column(name = "Version")
    private long version;

    @JsonSerialize(using = CustomDateSerializer.class)
    @Column(name = "CreateTime")
    private Date createTime;

    @JsonSerialize(using = CustomDateSerializer.class)
    @Column(name = "UpdateTime")
    private Date updateTime;

    public Date getUpdateTime() {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public long getVersion() {
        return version;
    }

    public void setVersion(long version) {
        this.version = version;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }
}