我们通过一个系列文章跟大家详细展示一个 go-zero 微服务示例,整个系列分十篇文章,目录结构如下:
期望通过本系列带你在本机利用 Docker 环境利用 go-zero 快速开发一个商城系统,让你快速上手微服务。
完整示例代码:https://github.com/nivin-studio/go-zero-mall
首先,我们来更新一下上篇文章中的服务拆分图片,由于微信公众号手机和电脑端不同步,导致美化的图片没有跟大家见面,特此补上,如图:
进入服务工作区
$ cd mall/service/user
创建 sql 文件
$ vim model/user.sql
编写 sql 文件
CREATE TABLE user
(
id
bigint unsigned NOT NULL AUTO_INCREMENT,
name
varchar(255) NOT NULL DEFAULT '' COMMENT '用户姓名',
gender
tinyint(3) unsigned NOT NULL DEFAULT '0' COMMENT '用户性别',
mobile
varchar(255) NOT NULL DEFAULT '' COMMENT '用户电话',
password
varchar(255) NOT NULL DEFAULT '' COMMENT '用户密码',
create_time
timestamp NULL DEFAULT CURRENT_TIMESTAMP,
update_time
timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (id
),
UNIQUE KEY idx_mobile_unique
(mobile
)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
运行模板生成命令
$ goctl model mysql ddl -src ./model/user.sql -dir ./model -c
创建 api 文件
$ vim api/user.api
编写 api 文件
type (
// 用户登录
LoginRequest {
Mobile string json:"mobile"
Password string json:"password"
}
LoginResponse {
AccessToken string json:"accessToken"
AccessExpire int64 json:"accessExpire"
}
// 用户登录
// 用户注册
RegisterRequest {
Name string json:"name"
Gender int64 json:"gender"
Mobile string json:"mobile"
Password string json:"password"
}
RegisterResponse {
Id int64 json:"id"
Name string json:"name"
Gender int64 json:"gender"
Mobile string json:"mobile"
}
// 用户注册
// 用户信息
UserInfoResponse {
Id int64 json:"id"
Name string json:"name"
Gender int64 json:"gender"
Mobile string json:"mobile"
}
// 用户信息
)
service User {
@handler Login
post /api/user/login(LoginRequest) returns (LoginResponse)
@handler Register
post /api/user/register(RegisterRequest) returns (RegisterResponse)
}
@server(
jwt: Auth
)
service User {
@handler UserInfo
post /api/user/userinfo() returns (UserInfoResponse)
}
运行模板生成命令
$ goctl api go -api ./api/user.api -dir ./api
创建 proto 文件
$ vim rpc/user.proto
编写 proto 文件
syntax = "proto3";
package userclient;
option go_package = "user";
// 用户登录
message LoginRequest {
string Mobile = 1;
string Password = 2;
}
message LoginResponse {
int64 Id = 1;
string Name = 2;
int64 Gender = 3;
string Mobile = 4;
}
// 用户登录
// 用户注册
message RegisterRequest {
string Name = 1;
int64 Gender = 2;
string Mobile = 3;
string Password = 4;
}
message RegisterResponse {
int64 Id = 1;
string Name = 2;
int64 Gender = 3;
string Mobile = 4;
}
// 用户注册
// 用户信息
message UserInfoRequest {
int64 Id = 1;
}
message UserInfoResponse {
int64 Id = 1;
string Name = 2;
int64 Gender = 3;
string Mobile = 4;
}
// 用户信息
service User {
rpc Login(LoginRequest) returns(LoginResponse);
rpc Register(RegisterRequest) returns(RegisterResponse);
rpc UserInfo(UserInfoRequest) returns(UserInfoResponse);
}
运行模板生成命令
$ goctl rpc proto -src ./rpc/user.proto -dir ./rpc
添加下载依赖包
回到 mall
项目根目录执行如下命令:
$ go mod tidy
修改 user.yaml 配置文件
$ vim rpc/etc/user.yaml
修改服务监听地址,端口号为0.0.0.0:9000,Etcd
服务配置,Mysql
服务配置,CacheRedis
服务配置
Name: user.rpc
ListenOn: 0.0.0.0:9000
Etcd:
Hosts:
Mysql:
DataSource: root:123456@tcp(mysql:3306)/mall?charset=utf8mb4&parseTime=true&loc=Asia%2FShanghai
CacheRedis:
添加 Mysql
服务配置,CacheRedis
服务配置的实例化
$ vim rpc/internal/config/config.go
package config
import (
"github.com/tal-tech/go-zero/core/stores/cache"
"github.com/tal-tech/go-zero/zrpc"
)
type Config struct {
zrpc.RpcServerConf
Mysql struct {
DataSource string
}
CacheRedis cache.CacheConf
}
注册服务上下文 user model
的依赖
$ vim rpc/internal/svc/servicecontext.go
package svc
import (
"mall/service/user/model"
"mall/service/user/rpc/internal/config"
"github.com/tal-tech/go-zero/core/stores/sqlx"
)
type ServiceContext struct {
Config config.Config
UserModel model.UserModel
}
func NewServiceContext(c config.Config) *ServiceContext {
conn := sqlx.NewMysql(c.Mysql.DataSource)
return &ServiceContext{
Config: c,
UserModel: model.NewUserModel(conn, c.CacheRedis),
}
}
添加密码加密工具
在根目录 common
新建 crypt
工具库,此工具方法主要用于密码的加密处理。
$ vim common/cryptx/crypt.go
package cryptx
import (
"fmt"
"golang.org/x/crypto/scrypt"
)
func PasswordEncrypt(salt, password string) string {
dk, _ := scrypt.Key([]byte(password), []byte(salt), 32768, 8, 1, 32)
return fmt.Sprintf("%x", string(dk))
}
添加密码加密 Salt
配置
$ vim rpc/etc/user.yaml
Name: user.rpc
ListenOn: 0.0.0.0:9000
…
Salt: HWVOFkGgPTryzICwd7qnJaZR9KQ2i8xe
$ vim rpc/internal/config/config.go
package config
import (
"github.com/tal-tech/go-zero/core/stores/cache"
"github.com/tal-tech/go-zero/zrpc"
)
type Config struct {
…
Salt string
}
添加用户注册逻辑
用户注册流程,先判断注册手机号是否已经被注册,手机号未被注册,将用户信息写入数据库,用户密码需要进行加密存储。
$ vim rpc/internal/logic/registerlogic.go
package logic
import (
"context"
"mall/common/cryptx"
"mall/service/user/model"
"mall/service/user/rpc/internal/svc"
"mall/service/user/rpc/user"
"github.com/tal-tech/go-zero/core/logx"
"google.golang.org/grpc/status"
)
type RegisterLogic struct {
ctx context.Context
svcCtx *svc.ServiceContext
logx.Logger
}
func NewRegisterLogic(ctx context.Context, svcCtx *svc.ServiceContext) *RegisterLogic {
return &RegisterLogic{
ctx: ctx,
svcCtx: svcCtx,
Logger: logx.WithContext(ctx),
}
}
func (l *RegisterLogic) Register(in *user.RegisterRequest) (*user.RegisterResponse, error) {
// 判断手机号是否已经注册
_, err := l.svcCtx.UserModel.FindOneByMobile(in.Mobile)
if err == nil {
return nil, status.Error(100, "该用户已存在")
}
if err == model.ErrNotFound {
newUser := model.User{
Name: in.Name,
Gender: in.Gender,
Mobile: in.Mobile,
Password: cryptx.PasswordEncrypt(l.svcCtx.Config.Salt, in.Password),
}
res, err := l.svcCtx.UserModel.Insert(&newUser)
if err != nil {
return nil, status.Error(500, err.Error())
}
newUser.Id, err = res.LastInsertId()
if err != nil {
return nil, status.Error(500, err.Error())
}
return &user.RegisterResponse{
Id: newUser.Id,
Name: newUser.Name,
Gender: newUser.Gender,
Mobile: newUser.Mobile,
}, nil
}
return nil, status.Error(500, err.Error())
}
用户登录流程,通过手机号查询判断用户是否是注册用户,如果是注册用户,需要将用户输入的密码进行加密与数据库中用户加密密码进行对比验证。
$ vim rpc/internal/logic/loginlogic.go
package logic
import (
"context"
"mall/common/cryptx"
"mall/service/user/model"
"mall/service/user/rpc/internal/svc"
"mall/service/user/rpc/user"
"github.com/tal-tech/go-zero/core/logx"
"google.golang.org/grpc/status"
)
type LoginLogic struct {
ctx context.Context
svcCtx *svc.ServiceContext
logx.Logger
}
func NewLoginLogic(ctx context.Context, svcCtx *svc.ServiceContext) *LoginLogic {
return &LoginLogic{
ctx: ctx,
svcCtx: svcCtx,
Logger: logx.WithContext(ctx),
}
}
func (l *LoginLogic) Login(in *user.LoginRequest) (*user.LoginResponse, error) {
// 查询用户是否存在
res, err := l.svcCtx.UserModel.FindOneByMobile(in.Mobile)
if err != nil {
if err == model.ErrNotFound {
return nil, status.Error(100, "用户不存在")
}
return nil, status.Error(500, err.Error())
}
// 判断密码是否正确
password := cryptx.PasswordEncrypt(l.svcCtx.Config.Salt, in.Password)
if password != res.Password {
return nil, status.Error(100, "密码错误")
}
return &user.LoginResponse{
Id: res.Id,
Name: res.Name,
Gender: res.Gender,
Mobile: res.Mobile,
}, nil
}
$ vim rpc/internal/logic/userinfologic.go
package logic
import (
"context"
"mall/service/user/model"
"mall/service/user/rpc/internal/svc"
"mall/service/user/rpc/user"
"github.com/tal-tech/go-zero/core/logx"
"google.golang.org/grpc/status"
)
type UserInfoLogic struct {
ctx context.Context
svcCtx *svc.ServiceContext
logx.Logger
}
func NewUserInfoLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UserInfoLogic {
return &UserInfoLogic{
ctx: ctx,
svcCtx: svcCtx,
Logger: logx.WithContext(ctx),
}
}
func (l *UserInfoLogic) UserInfo(in *user.UserInfoRequest) (*user.UserInfoResponse, error) {
// 查询用户是否存在
res, err := l.svcCtx.UserModel.FindOne(in.Id)
if err != nil {
if err == model.ErrNotFound {
return nil, status.Error(100, "用户不存在")
}
return nil, status.Error(500, err.Error())
}
return &user.UserInfoResponse{
Id: res.Id,
Name: res.Name,
Gender: res.Gender,
Mobile: res.Mobile,
}, nil
}
修改 user.yaml 配置文件
$ vim api/etc/user.yaml
修改服务地址,端口号为0.0.0.0:8000,Mysql
服务配置,CacheRedis
服务配置,Auth
验证配置
Name: User
Host: 0.0.0.0
Port: 8000
Mysql:
DataSource: root:123456@tcp(mysql:3306)/mall?charset=utf8mb4&parseTime=true&loc=Asia%2FShanghai
CacheRedis:
Auth:
AccessSecret: uOvKLmVfztaXGpNYd4Z0I1SiT7MweJhl
AccessExpire: 86400
添加 user rpc
服务配置
$ vim api/etc/user.yaml
Name: User
Host: 0.0.0.0
Port: 8000
……
UserRpc:
Etcd:
Hosts:
- etcd:2379
Key: user.rpc
添加 user rpc
服务配置的实例化
$ vim api/internal/config/config.go
package config
import (
"github.com/tal-tech/go-zero/rest"
"github.com/tal-tech/go-zero/zrpc"
)
type Config struct {
rest.RestConf
Auth struct {
AccessSecret string
AccessExpire int64
}
UserRpc zrpc.RpcClientConf
}
注册服务上下文 user rpc
的依赖
$ vim api/internal/svc/servicecontext.go
package svc
import (
"mall/service/user/api/internal/config"
"mall/service/user/rpc/userclient"
"github.com/tal-tech/go-zero/zrpc"
)
type ServiceContext struct {
Config config.Config
UserRpc userclient.User
}
func NewServiceContext(c config.Config) *ServiceContext {
return &ServiceContext{
Config: c,
UserRpc: userclient.NewUser(zrpc.MustNewClient(c.UserRpc)),
}
}
$ vim api/internal/logic/registerlogic.go
package logic
import (
"context"
"mall/service/user/api/internal/svc"
"mall/service/user/api/internal/types"
"mall/service/user/rpc/userclient"
"github.com/tal-tech/go-zero/core/logx"
)
type RegisterLogic struct {
logx.Logger
ctx context.Context
svcCtx *svc.ServiceContext
}
func NewRegisterLogic(ctx context.Context, svcCtx *svc.ServiceContext) RegisterLogic {
return RegisterLogic{
Logger: logx.WithContext(ctx),
ctx: ctx,
svcCtx: svcCtx,
}
}
func (l *RegisterLogic) Register(req types.RegisterRequest) (resp *types.RegisterResponse, err error) {
res, err := l.svcCtx.UserRpc.Register(l.ctx, &userclient.RegisterRequest{
Name: req.Name,
Gender: req.Gender,
Mobile: req.Mobile,
Password: req.Password,
})
if err != nil {
return nil, err
}
return &types.RegisterResponse{
Id: res.Id,
Name: res.Name,
Gender: res.Gender,
Mobile: res.Mobile,
}, nil
}
添加 JWT
工具
在根目录 common
新建 jwtx
工具库,用于生成用户 token
。
$ vim common/jwtx/jwt.go
package jwtx
import "github.com/golang-jwt/jwt"
func GetToken(secretKey string, iat, seconds, uid int64) (string, error) {
claims := make(jwt.MapClaims)
claims["exp"] = iat + seconds
claims["iat"] = iat
claims["uid"] = uid
token := jwt.New(jwt.SigningMethodHS256)
token.Claims = claims
return token.SignedString([]byte(secretKey))
}
添加用户登录逻辑
通过调用 user rpc
服务进行登录验证,登录成功后,使用用户信息生成对应的 token
以及 token
的有效期。
$ vim api/internal/logic/loginlogic.go
package logic
import (
"context"
"time"
"mall/common/jwtx"
"mall/service/user/api/internal/svc"
"mall/service/user/api/internal/types"
"mall/service/user/rpc/userclient"
"github.com/tal-tech/go-zero/core/logx"
)
type LoginLogic struct {
logx.Logger
ctx context.Context
svcCtx *svc.ServiceContext
}
func NewLoginLogic(ctx context.Context, svcCtx *svc.ServiceContext) LoginLogic {
return LoginLogic{
Logger: logx.WithContext(ctx),
ctx: ctx,
svcCtx: svcCtx,
}
}
func (l *LoginLogic) Login(req types.LoginRequest) (resp *types.LoginResponse, err error) {
res, err := l.svcCtx.UserRpc.Login(l.ctx, &userclient.LoginRequest{
Mobile: req.Mobile,
Password: req.Password,
})
if err != nil {
return nil, err
}
now := time.Now().Unix()
accessExpire := l.svcCtx.Config.Auth.AccessExpire
accessToken, err := jwtx.GetToken(l.svcCtx.Config.Auth.AccessSecret, now, accessExpire, res.Id)
if err != nil {
return nil, err
}
return &types.LoginResponse{
AccessToken: accessToken,
AccessExpire: now + accessExpire,
}, nil
}
$ vim api/internal/logic/userinfologic.go
package logic
import (
"context"
"encoding/json"
"mall/service/user/api/internal/svc"
"mall/service/user/api/internal/types"
"mall/service/user/rpc/userclient"
"github.com/tal-tech/go-zero/core/logx"
)
type UserInfoLogic struct {
logx.Logger
ctx context.Context
svcCtx *svc.ServiceContext
}
func NewUserInfoLogic(ctx context.Context, svcCtx *svc.ServiceContext) UserInfoLogic {
return UserInfoLogic{
Logger: logx.WithContext(ctx),
ctx: ctx,
svcCtx: svcCtx,
}
}
func (l *UserInfoLogic) UserInfo() (resp *types.UserInfoResponse, err error) {
uid, _ := l.ctx.Value("uid").(json.Number).Int64()
res, err := l.svcCtx.UserRpc.UserInfo(l.ctx, &userclient.UserInfoRequest{
Id: uid,
})
if err != nil {
return nil, err
}
return &types.UserInfoResponse{
Id: res.Id,
Name: res.Name,
Gender: res.Gender,
Mobile: res.Mobile,
}, nil
}
通过
l.ctx.Value("uid")
可获取 jwt token 中自定义的参数
提示:启动服务需要在
golang
容器中启动
$ cd mall/service/user/rpc
$ go run user.go -f etc/user.yaml
Starting rpc server at 127.0.0.1:9000...
提示:启动服务需要在
golang
容器中启动
$ cd mall/service/user/api
$ go run user.go -f etc/user.yaml
Starting server at 0.0.0.0:8000...
https://github.com/zeromicro/go-zero
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