pb数据库自动更新源码

// 假设有一个PB定义文件user.proto
syntax = "proto3";

package user;

message User {
    int32 id = 1;
    string name = 2;
    string email = 3;
}

// 生成对应的Go代码
protoc --go_out=. --go-grpc_out=. user.proto

// 在应用程序中使用生成的代码
package main

import (
    "context"
    "log"

    "google.golang.org/grpc"
    pb "path/to/user"
)

func main() {
    conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())
    if err != nil {
        log.Fatalf("did not connect: %v", err)
    }
    defer conn.Close()

    c := pb.NewUserServiceClient(conn)

    user := &pb.User{
        Id:    1,
        Name:  "Alice",
        Email: "alice@example.com",
    }

    _, err = c.CreateUser(context.Background(), user)
    if err != nil {
        log.Fatalf("could not create user: %v", err)
    }
}

// 序列化数据
data, err := proto.Marshal(user)
if err != nil {
    log.Fatalf("could not marshal user: %v", err)
}

// 反序列化数据
var newUser pb.User
err = proto.Unmarshal(data, &newUser)
if err != nil {
    log.Fatalf("could not unmarshal user: %v", err)
}