pythonde grpc调用golang的grpc服务端

https://blog.csdn.net/wtt234/article/details/162128299

具体可以先看上次的内容，连接在上面

1.Python 环境准备

# 安装 gRPC Python 包
pip install grpcio grpcio-tools

2.组织结构

pythonAuth/
├── calculator.proto    # 复制的 proto 文件
└── client.py          # Python 客户端

3.生成 Python gRPC 代码

python -m grpc_tools.protoc -I. --python_out=. --grpc_python_out=. calculator.proto

4.python的client客户端代码

import grpc
import calculator_pb2
import calculator_pb2_grpc

def run():
    # 1. 连接到 Go 服务端
    channel = grpc.insecure_channel('localhost:50051')
    
    # 2. 创建客户端存根
    stub = calculator_pb2_grpc.CalculatorStub(channel)
    
    # 3. 构造请求
    request = calculator_pb2.CalcRequest(num1=10, num2=5)
    
    # 4. 调用各个方法
    print("=== 调用 Go 服务端计算器 ===")
    
    # 加法
    response = stub.Add(request)
    print(f"🧮 10 + 5 = {response.result} ({response.message})")
    
    # 减法
    response = stub.Subtract(request)
    print(f"🧮 10 - 5 = {response.result} ({response.message})")
    
    # 乘法
    response = stub.Multiply(request)
    print(f"🧮 10 × 5 = {response.result} ({response.message})")
    
    # 除法
    response = stub.Divide(request)
    print(f"🧮 10 ÷ 5 = {response.result} ({response.message})")
    
    # 5. 测试除零错误
    try:
        request_zero = calculator_pb2.CalcRequest(num1=10, num2=0)
        response = stub.Divide(request_zero)
        print(f"🧮 10 ÷ 0 = {response.result}")
    except grpc.RpcError as e:
        print(f"❌ 10 ÷ 0 报错: {e.details()} (code: {e.code()})")

if __name__ == '__main__':
    run()

5.运行查看效果

[pythonAuth]# python -m grpc_tools.protoc -I. --python_out=. --grpc_python_out=. calculator.proto
=======================================
[pythonAuth]# python client.py 
=== 调用 Go 服务端计算器 ===
🧮 10 + 5 = 15.0 (成功)
🧮 10 - 5 = 5.0 (成功)
🧮 10 × 5 = 50.0 (成功)
🧮 10 ÷ 5 = 2.0 (成功)
❌ 10 ÷ 0 报错: 除数不能为0 (code: StatusCode.INVALID_ARGUMENT)
[pythonAuth]# 

6.项目最终文件效果