447 lines
10 KiB
Markdown
447 lines
10 KiB
Markdown
## 常用命令
|
||
|
||
### 命令 ①：goctl 生成/更新脚手架
|
||
|
||
```bash
|
||
goctl -I. -I../pkg/third_party rpc protoc proto/order.proto --go_out=. --go-grpc_out=. --zrpc_out=.
|
||
```
|
||
|
||
### 命令 ②：生成服务端 pb / grpc
|
||
|
||
```bash
|
||
goctl rpc protoc proto/order.proto --proto_path=. --proto_path=../pkg/third_party --go_out=. --go-grpc_out=. --zrpc_out=.
|
||
```
|
||
|
||
**什么时候跑：**
|
||
|
||
- 只改 **校验规则**（必填/长度/范围等）→ **只跑这条**
|
||
- 增删改字段、增删 RPC → 也要跑（服务端描述符要更新）
|
||
|
||
### 命令 ③：生成 BFF ProtoSet
|
||
|
||
```bash
|
||
protoc -I. -I../pkg/third_party --descriptor_set_out=../bff/etc/order.pb --include_imports proto/order.proto
|
||
```
|
||
|
||
**什么时候跑：**
|
||
|
||
- 增删改 **字段**（BFF gateway 编解码需要）
|
||
- 增删 **RPC**
|
||
- 改 **google.api.http** 路由
|
||
|
||
|
||
|
||
## 如何加一个新服务
|
||
|
||
以加 `order` 为例（对标现有 `product`）。
|
||
|
||
### 0. 安装 goctl
|
||
|
||
```bash
|
||
go install github.com/zeromicro/go-zero/tools/goctl@latest
|
||
goctl --version
|
||
go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
|
||
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
|
||
```
|
||
|
||
### 1. 创建 RPC 服务（goctl）
|
||
|
||
在仓库根目录执行：
|
||
|
||
```bash
|
||
goctl rpc new order
|
||
cd order
|
||
```
|
||
|
||
### 2. 将 proto 移到 `proto/` 目录
|
||
|
||
`goctl rpc new` 默认把 proto 放在服务根目录（如 `order/order.proto`）。统一挪到 `proto/`：
|
||
|
||
```bash
|
||
mkdir proto
|
||
mv order.proto proto/
|
||
```
|
||
|
||
### 3. Zero 兼容 Nacos 等配置
|
||
|
||
编辑 `order/internal/config/config.go`：
|
||
|
||
```go
|
||
package config
|
||
|
||
type Config struct {
|
||
Nacos NacosConf
|
||
}
|
||
|
||
type NacosConf struct {
|
||
Hosts []string
|
||
NamespaceId string `json:",optional"`
|
||
Group string `json:",optional"`
|
||
RegisterIP string `json:",optional"`
|
||
ConfigID string `json:",optional"`
|
||
}
|
||
```
|
||
|
||
### 4. 配置服务名与监听端口
|
||
|
||
编辑 `order/etc/order.yaml`：
|
||
|
||
```yaml
|
||
Nacos:
|
||
Hosts:
|
||
- host.docker.internal:8848
|
||
NamespaceId: test
|
||
Group: LONE_SERVICES
|
||
RegisterIP: admin
|
||
ConfigID: develop-admin
|
||
```
|
||
|
||
### 5. 构建 mod
|
||
|
||
编辑 `order/go.mod` 增加本地包 pkg.local
|
||
|
||
```go
|
||
go 1.26
|
||
|
||
replace pkg.local => ../pkg
|
||
```
|
||
|
||
|
||
|
||
### 6. 服务注册
|
||
|
||
编辑 `order/order.go`：
|
||
|
||
增加 import
|
||
|
||
```go
|
||
"pkg.local/discovery"
|
||
"pkg.local/modelbase"
|
||
"pkg.local/mysql"
|
||
"pkg.local/redis"
|
||
"pkg.local/validate"
|
||
"pkg.local/utils"
|
||
```
|
||
|
||
增加初始化
|
||
|
||
```go
|
||
|
||
func main() {
|
||
flag.Parse()
|
||
var c config.Config
|
||
conf.MustLoad(*configFile, &c)
|
||
|
||
nacosParam := utils.NacosConfig{
|
||
Hosts: c.Nacos.Hosts,
|
||
NamespaceId: c.Nacos.NamespaceId,
|
||
Group: c.Nacos.Group,
|
||
ConfigID: c.Nacos.ConfigID,
|
||
}
|
||
utils.InitConfig(nacosParam)
|
||
|
||
logConf := logx.LogConf{
|
||
ServiceName: utils.GetConfigString("log.serviceName"),
|
||
Mode: utils.GetConfigString("log.mode"),
|
||
Encoding: utils.GetConfigString("log.encoding"),
|
||
Level: utils.GetConfigString("log.level"),
|
||
Path: utils.GetConfigString("log.path"),
|
||
KeepDays: utils.GetConfigInt("log.keepDays"),
|
||
MaxSize: utils.GetConfigInt("log.maxSize"),
|
||
MaxBackups: utils.GetConfigInt("log.maxBackups"),
|
||
Compress: utils.GetConfigBool("log.compress"),
|
||
}
|
||
logx.SetUp(logConf)
|
||
logx.AddWriter(logx.NewWriter(os.Stdout))
|
||
|
||
listenOn := utils.GetConfigString("base.listenOn")
|
||
mode := utils.GetConfigString("base.mode")
|
||
serviceName := utils.GetConfigString("base.name")
|
||
|
||
if err := discovery.Init(discovery.Config{
|
||
Hosts: c.Nacos.Hosts,
|
||
NamespaceId: c.Nacos.NamespaceId,
|
||
Group: c.Nacos.Group,
|
||
}); err != nil {
|
||
logx.Errorf("nacos init: %v", err)
|
||
os.Exit(1)
|
||
}
|
||
|
||
port, err := listenPort(listenOn)
|
||
if err != nil {
|
||
logx.Errorf("parse ListenOn: %v", err)
|
||
os.Exit(1)
|
||
}
|
||
|
||
if err := discovery.Register(discovery.Instance{
|
||
ServiceName: serviceName,
|
||
IP: c.Nacos.RegisterIP,
|
||
Port: port,
|
||
Group: c.Nacos.Group,
|
||
}); err != nil {
|
||
logx.Errorf("nacos register: %v", err)
|
||
os.Exit(1)
|
||
}
|
||
logx.Infof("服务注册成功: %s:%d", c.Nacos.RegisterIP, port)
|
||
|
||
defer func() {
|
||
if err := discovery.Deregister(); err != nil {
|
||
logx.Errorf("nacos deregister: %v", err)
|
||
}
|
||
}()
|
||
|
||
db, err := mysql.New(mysql.Config{
|
||
Host: utils.GetConfigString("mysql.host"),
|
||
Port: utils.GetConfigInt("mysql.port"),
|
||
User: utils.GetConfigString("mysql.user"),
|
||
Password: utils.GetConfigString("mysql.password"),
|
||
Database: utils.GetConfigString("mysql.database"),
|
||
Charset: utils.GetConfigString("mysql.charset"),
|
||
Prefix: utils.GetConfigString("mysql.prefix"),
|
||
ReadHost: utils.GetConfigString("mysql_read.host"),
|
||
ReadPort: utils.GetConfigInt("mysql_read.port"),
|
||
ReadUser: utils.GetConfigString("mysql_read.user"),
|
||
ReadPassword: utils.GetConfigString("mysql_read.password"),
|
||
ReadDatabase: utils.GetConfigString("mysql_read.database"),
|
||
})
|
||
if err != nil {
|
||
logx.Errorf("mysql init: %v", err)
|
||
os.Exit(1)
|
||
}
|
||
|
||
if err := redis.Init(redis.Config{
|
||
Host: utils.GetConfigString("redis.host"),
|
||
Port: utils.GetConfigInt("redis.port"),
|
||
Password: utils.GetConfigString("redis.password"),
|
||
DB: utils.GetConfigInt("redis.db"),
|
||
}); err != nil {
|
||
logx.Errorf("redis init: %v", err)
|
||
os.Exit(1)
|
||
}
|
||
|
||
debug := utils.GetConfigBool("mysql.debug")
|
||
modelbase.Init(db, modelbase.Config{Prefix: utils.GetConfigString("mysql.prefix"), Debug: debug})
|
||
|
||
rpcConf := zrpc.RpcServerConf{
|
||
ListenOn: listenOn,
|
||
}
|
||
rpcConf.Mode = mode
|
||
|
||
ctx := svc.NewServiceContext(c, db)
|
||
|
||
s := zrpc.MustNewServer(rpcConf, func(grpcServer *grpc.Server) {
|
||
order.RegisterOrderServer(grpcServer, server.NewOrderServer(ctx))
|
||
if mode == service.DevMode || mode == service.TestMode {
|
||
reflection.Register(grpcServer)
|
||
}
|
||
})
|
||
defer s.Stop()
|
||
|
||
s.AddUnaryInterceptors(validate.UnaryServerInterceptor(validate.MustNew()))
|
||
|
||
logx.Infof("Starting rpc server at %s...", listenOn)
|
||
s.Start()
|
||
}
|
||
|
||
func listenPort(listenOn string) (uint64, error) {
|
||
_, portStr, err := net.SplitHostPort(listenOn)
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
return strconv.ParseUint(portStr, 10, 64)
|
||
}
|
||
|
||
```
|
||
|
||
执行 tidy
|
||
|
||
```bash
|
||
go mod tidy
|
||
```
|
||
|
||
编辑 `internal/svc/servicecontext.go`：
|
||
|
||
```go
|
||
|
||
type ServiceContext struct {
|
||
Config config.Config
|
||
DB *gorm.DB
|
||
Prefix string
|
||
}
|
||
|
||
func NewServiceContext(c config.Config, db *gorm.DB) *ServiceContext {
|
||
return &ServiceContext{
|
||
Config: c,
|
||
DB: db,
|
||
Prefix: utils.GetConfigString("mysql.prefix"),
|
||
}
|
||
}
|
||
|
||
```
|
||
|
||
### 7. 接入 Docker Compose
|
||
|
||
在 `deploy/docker-compose.dev.override.yml` 增加服务：
|
||
|
||
```yaml
|
||
order:
|
||
image: golang:1.26.5
|
||
volumes:
|
||
- ..:/src
|
||
- go-mod-cache:/go/pkg/mod
|
||
- go-build-cache:/root/.cache/go-build
|
||
working_dir: /src/order
|
||
command: go run . -f etc/order.yaml
|
||
ports:
|
||
- "10200:10200"
|
||
environment:
|
||
NACOS_SERVER_ADDR: rnacos:8848
|
||
depends_on:
|
||
- rnacos
|
||
```
|
||
|
||
### 8. 生成 ProtoSet 给 BFF
|
||
|
||
```bash
|
||
protoc --include_imports --proto_path=proto --descriptor_set_out=../bff/etc/order.pb order.proto
|
||
```
|
||
|
||
### 9. 在 BFF 配 Upstream（HTTP 路由写在 proto）
|
||
|
||
编辑 `bff/etc/bff.yaml`，在 **Upstreams** 增加一段（不必写 Mappings，gateway 会从 ProtoSet 里的 http option 注册路由）：
|
||
|
||
```yaml
|
||
- Name: order
|
||
Grpc:
|
||
Target: order-service # 必须等于 order.yaml 的 Name
|
||
Timeout: 5000
|
||
ProtoSets:
|
||
- etc/order.pb
|
||
```
|
||
|
||
在对应 RPC 上声明 `google.api.http`（需 `import "google/api/annotations.proto";`）：
|
||
|
||
```protobuf
|
||
rpc Ping(Request) returns (Response) {
|
||
option (google.api.http) = {
|
||
post: "/admin/v3/order/ping"
|
||
body: "*"
|
||
};
|
||
}
|
||
```
|
||
|
||
### 编写业务须知
|
||
|
||
只改业务逻辑（`internal/logic/`）不必跑 goctl。
|
||
改 `proto/order.proto`（新增/改名 RPC、改字段、改 http option 等）后，按文末「三条命令何时用」处理；
|
||
|
||
若 HTTP 路径有变，改 proto 里的 `google.api.http` 后重新跑命令 ② 生成 ProtoSet。
|
||
|
||
---
|
||
|
||
### 命令 ①：生成服务端 pb / grpc
|
||
|
||
```bash
|
||
goctl rpc protoc proto/order.proto --proto_path=. --proto_path=../pkg/third_party --go_out=. --go-grpc_out=. --zrpc_out=.
|
||
```
|
||
|
||
**什么时候跑：**
|
||
|
||
- 只改 **校验规则**（必填/长度/范围等）→ **只跑这条**
|
||
- 增删改字段、增删 RPC → 也要跑（服务端描述符要更新）
|
||
|
||
### 命令 ②：生成 BFF ProtoSet
|
||
|
||
```bash
|
||
protoc -I. -I../pkg/third_party --descriptor_set_out=../bff/etc/order.pb --include_imports proto/order.proto
|
||
```
|
||
|
||
**什么时候跑：**
|
||
|
||
- 增删改 **字段**（BFF gateway 编解码需要）
|
||
- 增删 **RPC**
|
||
- 改 **google.api.http** 路由
|
||
|
||
### 命令 ③：goctl 生成/更新脚手架
|
||
|
||
```bash
|
||
goctl -I. -I../pkg/third_party rpc protoc proto/order.proto --go_out=. --go-grpc_out=. --zrpc_out=.
|
||
```
|
||
|
||
**什么时候跑：**
|
||
|
||
- **新增 RPC**：需要生成 `internal/logic`、更新 `server` / `orderclient` 等
|
||
- 注意：可能覆盖已改过的 `order.go` 等，生成后对比合并；也可用手写 logic/server 代替
|
||
|
||
## Proto 常用校验规则（protovalidate）
|
||
|
||
文档：[https://protovalidate.com/schemas/standard-rules/](https://protovalidate.com/schemas/standard-rules/)
|
||
依赖：`import "buf/validate/validate.proto";`，服务启动挂 `pkg.local/validate` 拦截器。
|
||
|
||
### 必填字符串
|
||
|
||
```protobuf
|
||
string name = 1 [(buf.validate.field).string = {min_len: 1, max_len: 256}];
|
||
```
|
||
|
||
`min_len: 1` 表示不能为空串。
|
||
|
||
### 可选字符串（仅限长度）
|
||
|
||
```protobuf
|
||
string subhead = 2 [(buf.validate.field).string = {max_len: 255}];
|
||
```
|
||
|
||
空串可通过；有内容时限制最大长度。
|
||
|
||
### 必填数值（含 0 合法）
|
||
|
||
```protobuf
|
||
double price = 6 [(buf.validate.field).double = {gte: 0}];
|
||
int32 period_validity = 16 [(buf.validate.field).int32 = {gte: 0}];
|
||
```
|
||
|
||
### 非必填数值（0 表示未传，跳过校验）
|
||
|
||
```protobuf
|
||
double store_price = 7 [(buf.validate.field) = {
|
||
ignore: IGNORE_IF_ZERO_VALUE,
|
||
double: {gte: 0}
|
||
}];
|
||
```
|
||
|
||
有值时仍要求 `>= 0`；未传/为 0 不校验。
|
||
|
||
### 枚举 / 固定取值（0 表示未传）
|
||
|
||
```protobuf
|
||
uint32 type = 19 [(buf.validate.field) = {
|
||
ignore: IGNORE_IF_ZERO_VALUE,
|
||
uint32: {in: [1, 2, 3]}
|
||
}];
|
||
|
||
uint32 sales_model = 4 [(buf.validate.field) = {
|
||
ignore: IGNORE_IF_ZERO_VALUE,
|
||
uint32: {in: [1, 2]}
|
||
}];
|
||
```
|
||
|
||
### ID 必须大于 0
|
||
|
||
```protobuf
|
||
int64 id = 1 [(buf.validate.field).int64 = {gt: 0}];
|
||
```
|
||
|
||
### 无规则字段
|
||
|
||
```protobuf
|
||
uint32 number = 20; // 不做 protovalidate
|
||
```
|
||
|
||
### 删除字段编号（避免复用）
|
||
|
||
```protobuf
|
||
// reserved 2;
|
||
```
|
||
|
||
业务条件校验（如「普通商品必须带齐价格」）仍写在 `internal/logic`，不要全塞进 proto。 |