使用django-import-export库，导入导出数据，支持csv、xls、json、html等格式
官网：http://django-import-export.readthedocs.io/en/latest/installation.html
1、安装django-import-export
pip install django-import-export
2、配置settings.py
INSTALLED_APPS = ( 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'customer', 'publisher', 'import_export', )
执行命令: python manage.py collectstatic
3、models.py 建立model
class Author(models.Model):
name = models.CharField(max_length=100)
def __unicode__(self):
return self.name
class Category(models.Model):
name = models.CharField(max_length=100)
def __unicode__(self):
return self.name
class Book(models.Model):
name = models.CharField('Book name', max_length=100)
author = models.ForeignKey(Author, blank=True, null=True)
author_email = models.EmailField('Author email', max_length=75, blank=True)
imported = models.BooleanField(default=False)
published = models.DateField('Published', blank=True, null=True)
price = models.DecimalField(max_digits=10, decimal_places=2, null=True, blank=True)
categories = models.ManyToManyField(Category, blank=True)
def __unicode__(self):
return self.name
4、在admin.py 创建Resource、对应的Admin
from import_export import resources
from core.models import Book
from import_export.admin import ImportExportModelAdmin
class BookResource(resources.ModelResource):
class Meta:
model = Book
export_order = ('id', 'name', 'author', 'author_email', 'imported', 'click', 'published', 'price', 'categories')
@admin.register(Book)
class BookAdmin(ImportExportModelAdmin):
list_display = ('name', 'author', 'author_email', 'imported', 'published', 'price', 'categories')
search_fields = ('name', 'author','published')
date_hierarchy = 'date'
resource_class = BookResource
export_order：设置导出字段的顺序
5、Django界面实现导入导出
自定义导出 方式 action 这种方式也推荐
import xlwt
#导出Excel
from django.http import StreamingHttpResponse
class AdminReport(admin.ModelAdmin):
actions = ["saveexecl"] # 自定义的action（导出到excel表格）
list_display = ("id",'offer','day_time', 'idfa', 'submit_result_text', 'callback_result_text') # 显示的列
search_fields = ('day_time','callback_result_text') # 可以搜索的字段
date_hierarchy = 'day_time' # 按照日期显示
list_filter = ('offer',) # 过滤条件
list_per_page = 500 # 每页显示500条，太多了可能会出现服务器崩掉的情况
def saveexecl(self,request,queryset):
Begin = xlwt.Workbook()
sheet = Begin.add_sheet("response")
cols = 0
for query in queryset:
# you need write colms # 好像有个方法可以一次性写入所有列，记不清了，只能用这种简单的方法去实现
sheet.write(cols,1,str(query.idfa)) # 写入第一列
sheet.write(cols,2,str(query.day_time)) # 写入第二列
sheet.write(cols,3,str(query.keyword)) # 写入第三列
cols += 1
Begin.save("%s" %(filename))
def file_iterator(filename,chuck_size=512):
with open(filename,"rb") as f:
while True:
c = f.read(chuck_size)
if c:
yield c
else:
break
response = StreamingHttpResponse(file_iterator(filename))
response['Content-Type'] = 'application/octet-stream'
response['Content-Disposition'] = 'attachment;filename="{}"'.format("result.xls")
return response
saveexecl.short_description = "导出Excel" # 按钮显示名字
admin.site.register(Report, AdminReport) # 注册到admin
以上这篇Django import export实现数据库导入导出方式就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。
