python使用grpc，并打包成python模块
- xmlrpc也是可行的方案，也相对更加简单
一、环境
python3.6
二、安装模块
pip3 install grpcio
pip3 install protobuf
pip3 install grpcio-tools三、准备grpc配置文件grpcdatabase.proto
目录结构：
内容如下：
syntax = "proto3";
package grpcServer;
service Greeter {
rpc GetContent (Request) returns (Return) {} //定义要调用的函数(GetContent)+(Request)接受的参数+(Return)返回的参数
}
message Request { //传参数据类型
string content = 1;//文本
int32 code=2; //返回状态0success；1failed
}
message Return { //返回数据类型
string message = 1;//文本
int32 code=2; //返回状态0success；1failed
}
//执行命令+安装步骤
//python3 -m grpc_tools.protoc -I. --python_out=grpc_base_models/ --grpc_python_out=grpc_base_models/ grpcdatabase.proto编译：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
编写服务端代码：
# -*- 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):
'''
获取文章摘要
: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()编写客户端代码：
# -*- 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客户端程序
:param funcname: 可用funcname为下面两个
>>> GetContent 获取摘要， 参数：content='文本'
*** 上面两个函数均返回message属性和code(1:failed 0:success)属性
>>> 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"函数名错误")
print("message=" , response.message)
print( "code=",response.code)
if __name__ == '__main__':
text = u'''
测试的文本
'''
RpcClient('GetContent',text)
分别运行：Server.py 和Client.py 查看结果
上面服务端代码每次使用，都要依赖grpcdatabase_pb2*.py这两个文件，因此，我们可以打包为python模块。更加方便使用
打包
添加setup.py文件在根目录下:结构图
setup.py文件内容如下
# -*- 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公用模块,个人项目专用,仅供参考",
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 如下图：
安装：pip install dist/grpc_base_models-0.0.1.tar.gz
即可在python脚本中使用
引用即可：
from grpc_base_models import grpcdatabase_pb2_grpc
from grpc_base_models import grpcdatabase_pb2** 附上代码地址python版grpc实例
转载于:https://blog.51cto.com/leizhu/2359958