- xmlrpc也是可行的方案,也相對更加簡單
一、環境
python3.6
二、安裝模塊
pip3 install grpcio
pip3 install protobuf
pip3 install grpcio-tools
三、準備grpc配置文件grpcdatabase.proto
目錄結構:
內容如下:
syntax = "proto3";
package grpcServer;
service Greeter {
rpc GetContent (Request) returns (Return) {} //定義要調用的函數(GetContent)+(Request)接受的參數+(Return)返回的參數
}
message Request { //傳參數據類型
string content = 1;//文本
int32 code=2; //返回狀態0success;1failed
}
message Return { //返回數據類型
string message = 1;//文本
int32 code=2; //返回狀態0success;1failed
}
//執行命令+安裝步驟
//python3 -m grpc_tools.protoc -I. --python_out=grpc_base_models/ --grpc_python_out=grpc_base_models/ grpcdatabase.proto
編譯:生成grpcatabase_pb2.py grpcdatabase_pb2_grpc.py文件
python3 -m grpc_tools.protoc -I. --python_out=grpc_base_models/ --grpc_python_out=grpc_base_models/ grpcdatabase.proto
編寫服務端代碼:
# -*- coding: utf-8 -*-
# @author: chenhuachao
# @time: 2019/3/7
# Servers.py
import sys
sys.path.append('grpc_base_models')
import grpc
import time
from concurrent import futures
import grpcdatabase_pb2
import grpcdatabase_pb2_grpc
# from grpc_base_models import grpcdatabase_pb2
# from grpc_base_models import grpcdatabase_pb2_grpc
_SLEEP_TIME = 60
_HOST = "0.0.0.0"
_PORT = "19999"
class RpcServer(grpcdatabase_pb2_grpc.GreeterServicer):
def GetContent(self, request, context):
'''
獲取文章摘要
:param request:
:param context:
:return:
'''
try:
_content = request.content
code = 0
except Exception as e:
_content = str(e)
code=1
return grpcdatabase_pb2.Return(message=_content,code=code)
def server():
if sys.argv.__len__()>=2:
_PORT = sys.argv[1]
else:
_PORT = "19999"
grpcServer = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
grpcdatabase_pb2_grpc.add_GreeterServicer_to_server(RpcServer(), grpcServer)
grpcServer.add_insecure_port("{0}:{1}".format(_HOST, _PORT))
grpcServer.start()
try:
while True:
time.sleep(_SLEEP_TIME)
except KeyboardInterrupt:
grpcServer.stop(0)
if __name__ == '__main__':
server()
編寫客戶端代碼:
# -*- coding: utf-8 -*-
# @author: chenhuachao
# @time: 2019/3/7
# Client.py
import sys
import grpc
sys.path.append('grpc_base_models')
import grpcdatabase_pb2_grpc
import grpcdatabase_pb2
# from grpc_base_models import grpcdatabase_pb2_grpc
# from grpc_base_models import grpcdatabase_pb2
# _HOST = '192.168.3.191'
_HOST = '127.0.0.1'
_PORT = '19999'
def RpcClient(funcname,content):
'''
rpc客戶端程序
:param funcname: 可用funcname爲下面兩個
>>> GetContent 獲取摘要, 參數:content='文本'
*** 上面兩個函數均返回message屬性和code(1:failed 0:success)屬性
>>> 返回值:response.message response.code
:return:
'''
with grpc.insecure_channel("{0}:{1}".format(_HOST, _PORT)) as channel:
client = grpcdatabase_pb2_grpc.GreeterStub(channel=channel)
if hasattr(client,funcname):
response = getattr(client,funcname)(grpcdatabase_pb2.Request(content=content))
else:
raise Exception(u"函數名錯誤")
print("message=" , response.message)
print( "code=",response.code)
if __name__ == '__main__':
text = u'''
測試的文本
'''
RpcClient('GetContent',text)
分別運行:Server.py 和Client.py 查看結果
上面服務端代碼每次使用,都要依賴grpcdatabase_pb2*.py這兩個文件,因此,我們可以打包爲python模塊。更加方便使用
打包
添加setup.py文件在根目錄下:結構圖
setup.py文件內容如下
# -*- coding: utf-8 -*-
# @author: chenhuachao
# @time: 2019/3/8
# setup.py
from setuptools import setup,find_packages
setup(
name = "grpc_base_models",
version = "0.0.1",
keywords = ("pip", "pygrpc", "company", "chenhuachao"),
description = "python版本的grpc公用模塊,個人項目專用,僅供參考",
long_description="grpc server for python",
license="MIT Licence",
url="https://github.com/leizhu900516",
author="chenhuachao",
author_email="[email protected]",
packages = find_packages(),
install_requires = [
'grpcio==1.19.0',
'grpcio-tools==1.19.0',
'protobuf==3.7.0',
]
)
打包:
python3 setup.py sdist 如下圖:
安裝:pip install dist/grpc_base_models-0.0.1.tar.gz
即可在python腳本中使用
引用即可:
from grpc_base_models import grpcdatabase_pb2_grpc
from grpc_base_models import grpcdatabase_pb2
** 附上代碼地址python版grpc實例