1.django使用mysql主从

1.1 在syl/settings.py中配置mysql主从

# 配置django
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'syl',
        'HOST': '127.0.0.1',
        'PORT': '3307',
        'USER': 'root',
        'PASSWORD': '1',
    },
    'slave': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'syl',
        'HOST': '127.0.0.1',
        'PORT': '3308',
        'USER': 'root',
        'PASSWORD': '1',
    }
}

# 数据库路由配置
DATABASE_ROUTERS = ['utils.db_router.MasterSlaveDBRouter']

1.2 编写mysql路由文件

# utils/db_router.py
class MasterSlaveDBRouter(object):
    """数据库读写路由"""

    def db_for_read(self, model, **hints):
        """读"""
        return "slave"

    def db_for_write(self, model, **hints):
        """写"""
        return "default"

    def allow_relation(self, obj1, obj2, **hints):
        """是否运行关联操作"""
        return True