這是我的 Django 模型class Data(models.Model): created = models.DateTimeField(null=True, blank=True, editable=False) modified = models.DateTimeField(null=True, blank=True) raw = models.TextField(null=True, blank=True) uuid = models.CharField(blank=True, null=True, max_length=48,unique=True) used = models.BooleanField(default=False,null=True) name = models.CharField(blank=True, null=True, max_length=200) geohash = models.CharField(blank=True, null=True, max_length=200) def __str__(self): return str(self.created) + ":" + str(self.raw) def __unicode__(self): return str(self.created) + ":" + str(self.raw) def save(self, *args, **kwargs): """ On save, update timestamps """ if not self.uuid : self.uuid = str(uuid.uuid4().hex) +str(random.randint(1000,9999) ) if not self.id: self.created = timezone.now() self.modified = timezone.now() # if not self.geoHash and (self.gpsLat and self.gpsLong): # Geohash.encode(self.gpsLat, self.gpsLong) return super(DataLbc, self).save(*args, **kwargs) def toJson(self): ret = {} ret["Created"] = str(self.created) ret["Modified"] = str(self.modified) ret["Used"] = self.used ret["Raw"] = self.raw return ret這是我將其發送到我的 golang 服務器的方式：from RawOffer.models import Datawhile True: try : for data in Data.objects.all()[:10]: requests.post("http://127.0.0.1:8087/convert/",json=data.toJson()) except Exception as e: print(e) time.sleep(5)但對于創建和修改當我嘗試接收它時我有{0001-01-01 00:00:00 +0000 UTC false}如何序列化 django 日期時間以將其以 json 形式發送以及如何在 golang 中獲取它？我的主要目標是將帶有日期的對象從 django 應用程序發送到 golang 中的微服務。所以我需要序列化 django 日期并且我需要寫很多文本，因為如果我沒有寫足夠的文本，stackoverflow 不會讓我發布我的程序......
3 回答
蝴蝶不菲
TA貢獻1810條經驗 獲得超4個贊
這是與該問題相關的一個工作示例，可能對將來的某人有所幫助。
服務器.go
package main
import (
"fmt"
"github.com/gin-contrib/cors"
"github.com/gin-gonic/gin"
"github.com/jmoiron/sqlx"
"gopkg.in/guregu/null.v3"
"strconv"
)
type RawOffer struct {
Used_f bool `json:"Used_f"`
Used_t bool `json:"Used_t"`
RawOfferData string `json:"Raw"`
Modified null.Time `json:"Modified"`
Created null.Time `json:"Created"`
}
func convert(c *gin.Context) {
var rawOffer RawOffer
c.BindJSON(&rawOffer)
fmt.Println(`Used_f = ` + strconv.FormatBool(rawOffer.Used_f))
fmt.Println(`Used_t = ` + strconv.FormatBool(rawOffer.Used_t))
fmt.Println(`RawOfferData = `, rawOffer.RawOfferData)
fmt.Println(`Modified = `, rawOffer.Modified)
fmt.Println(`Created = `, rawOffer.Created)
}
var db *sqlx.DB
func main() {
fmt.Println("begin")
r := gin.Default()
r.Use(cors.Default())
r.POST("/convert/", convert)
r.Run((":8087"))
}
test.py
import requests
import json
import datetime
def default(o):
if isinstance(o, (datetime.date, datetime.datetime)):
return o.isoformat() + 'Z'
try :
data = dict(
Created = datetime.datetime.utcnow(),
Modified = datetime.datetime.utcnow(),
Used_f = False,
Used_t = True,
Raw = 'some raw data here',
)
datastr = json.dumps(data, default=default)
print(datastr)
requests.post("http://127.0.0.1:8087/convert/", datastr)
except Exception as e:
print(e)
登錄test.py：
$ python test.py
{"Created": "2019-06-09T15:48:38.978230Z", "Modified": "2019-06-09T15:48:38.978689Z", "Used_f": false, "Used_t": true, "Raw": "some raw data here"}
登錄服務器：
begin
[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.
[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
- using env: export GIN_MODE=release
- using code: gin.SetMode(gin.ReleaseMode)
[GIN-debug] POST /convert/ --> main.convert (4 handlers)
[GIN-debug] Listening and serving HTTP on :8087
Used_f = false
Used_t = true
RawOfferData = some raw data here
Modified = {2019-06-09 15:48:38.978689 +0000 UTC true}
Created = {2019-06-09 15:48:38.97823 +0000 UTC true}
[GIN] 2019/06/09 - 11:48:39 |[97;42m 200 [0m| 16.979399ms | 127.0.0.1 |[97;46m POST [0m /convert/
慕姐4208626
TA貢獻1852條經驗 獲得超7個贊
默認情況下，django 日期時間字段具有時區支持。你需要換個方式思考。或者您可以使用 django-extentions 。此第三方軟件包附帶一個創建和修改的日期時間字段，該字段不記錄時區，使用這兩個字段您將得到類似 {0001-01-01 00:00:00 } 的輸出
GCT1015
TA貢獻1827條經驗 獲得超4個贊
我使用了一個骯臟的技巧來序列化日期：
def toJson(self):
ret = {}
date_handler = lambda obj: (
obj.isoformat()
if isinstance(obj, (datetime.datetime, datetime.date))
else None
)
ret["Created"] = str(json.dumps(self.created, default=date_handler)).replace("\"","")
ret["Modified"] = str(json.dumps(self.modified, default=date_handler)).replace("\"","")
ret["Used"] = self.used
ret["Raw"] = self.raw
return ret
我希望有人能找到更好的解決方案
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