方式一:是視圖裡面用using方式可以進行指定到哪個資料讀寫
from django.shortcuts import render,HttpResponse
from app01 import models
def index(request):

    models.UserType.objects.using('db1').create(title='普通使用者')
　　# 手動指定去某個資料庫取資料
    result = models.UserType.objects.all().using('db1')
    print(result)

    return HttpResponse('
 
...')

方式二：寫配置檔案
class Router1:
　　#  指定到某個資料庫取資料
    def db_for_read(self, model, **hints):
        """
        Attempts to read auth models go to auth_db.
        """
        if model._meta.model_name == 'usertype':
            return 'db1'
        else:
            return 'default'
　　　# 指定到某個資料庫存資料
 

    def db_for_write(self, model, **hints):
        """
        Attempts to write auth models go to auth_db.
        """
        return 'default'
再寫到配置
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    },
    'db1
 
': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}
DATABASE_ROUTERS = ['db_router.Router1',]