go-zero微服务《案例一:mysql的CURD操作》
2022-07-04 本文已影响0人
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使用goctl自动生成api数据模型的代码
- goctl安装
# for Go 1.15 and earlier
go get -u github.com/zeromicro/go-zero/tools/goctl@latest
go install github.com/zeromicro/go-zero/tools/goctl@latest
# for Go 1.16 and later
go install github.com/zeromicro/go-zero/tools/goctl@latest
- 定义xxx.api文档
// 1. 用户注册/open/register; 入参(mobile:手机号,passwd:密码,code:图片验证码)
// 2. 用户登录/open/authorization; 入参(mobile:手机号,passwd:密码,code:图片验证码)
// 3. 图片验证码请求/open/verify; ticket:图片验证码的id; data:base64格式的图片
type (
UserOptReq struct {
mobile string `json:"mobile"`
passwd string `json:"passwd"`
code string `json:"code"`
}
UserOptResp struct {
id uint `json:"id"`
token string `json:"token"`
}
//图片验证码支持
VerifyReq struct {
ticket string `json:"ticket"`
}
//图片验证码支持
VerifyResp struct {
data string `json:"data"`
}
)
// 一个文件里面只能有一个 service
service open-api {
@doc(
summary: 公开的api函数
desc: >
register: 用户注册,
authorization: 用户登录,
verify: 图片验证码接口
)
@server(
handler: registerHandler
folder: open
)
post /open/register(UserOptReq) returns(UserOptResp)
@server(
handler: authorizationHandler
folder: open
)
post /open/authorization(UserOptReq) returns(UserOptResp)
@server(
handler: verifyHandler
folder: open
)
post /open/verify(VerifyReq) returns(VerifyResp)
}
- 生成代码
goctl api go -api xxx.api -dir .
# 使用goctl生成api代码,生成go语言代码,api的定义模版本是xxx.api, -dir指定生成的代码路径
集成Gorm操作mysql
- 修改配置文件 etc/xxx-api.yaml
Name: open-api
Host: 0.0.0.0
Port: 8888
DataSourceName: root:<passwd>@(127.0.0.1:3306)/<database_name>?charset=utf8
- 在internal/config/config.go中添加DataSourceName
type Config struct {
rest.RestConf
DataSourceName string
}
- 修改svc/servicecontext.go
package svc
import (
"hello/internal/config"
"hello/internal/models"
"gorm.io/driver/mysql"
"gorm.io/gorm"
"gorm.io/gorm/schema"
)
type ServiceContext struct {
Config config.Config
DbEngin *gorm.DB
}
func NewServiceContext(c config.Config) *ServiceContext {
//启动Gorm支持
db, err := gorm.Open(mysql.Open(c.DataSourceName), &gorm.Config{
NamingStrategy: schema.NamingStrategy{
TablePrefix: "tech_", // 表名前缀,`User` 的表名应该是 `t_users`
SingularTable: true, // 使用单数表名,启用该选项,此时,`User` 的表名应该是 `t_user`
},
})
//如果出错就GameOver了
if err != nil {
panic(err)
}
//自动同步更新表结构,不要建表了O(∩_∩)O哈哈~
db.AutoMigrate(&models.User{})
return &ServiceContext{Config: c, DbEngin: db}
}
- 新建数据库的 models\models.go
//models\models.go文件
package models
import (
"errors"
"hello/internal/utils"
"gorm.io/gorm"
)
type User struct {
gorm.Model
Mobile string `gorm:"index:mobile;type:varchar(13)"`
Passwd string `gorm:"type:varchar(64)"`
}
//在创建前检验验证一下密码的有效性
func (u *User) BeforeCreate(db *gorm.DB) error {
if len(u.Passwd) < 6 {
return errors.New("密码太简单了")
}
//对密码进行加密存储
u.Passwd = utils.Password(u.Passwd)
return nil
}
- 新建utils utils.Password工具包
package utils
import (
"fmt"
"golang.org/x/crypto/bcrypt"
)
//密码加密
func Password(plainpwd string) string {
//谷歌的加密包
hash, err := bcrypt.GenerateFromPassword([]byte(plainpwd), bcrypt.DefaultCost) //加密处理
if err != nil {
fmt.Println(err)
}
encodePWD := string(hash) // 保存在数据库的密码,虽然每次生成都不同,只需保存一份即可
return encodePWD
}
//密码校验
func CheckPassword(plainpwd, cryptedpwd string) bool {
err := bcrypt.CompareHashAndPassword([]byte(cryptedpwd), []byte(plainpwd)) //验证(对比)
return err == nil
}
- 修改实现业务逻辑 logic\xxx\registerlogic.go
package logic
import (
"context"
"hello/internal/models"
"hello/internal/svc"
"hello/internal/types"
"github.com/tal-tech/go-zero/core/logx"
)
type RegisterLogic struct {
ctx context.Context
logx.Logger
svcCtx *svc.ServiceContext
}
func NewRegisterLogic(ctx context.Context, svcCtx *svc.ServiceContext) RegisterLogic {
return RegisterLogic{
ctx: ctx,
Logger: logx.WithContext(ctx),
svcCtx: svcCtx,
}
}
func (l *RegisterLogic) Register(req types.UserOptReq) (*types.UserOptResp, error) {
user := models.User{
Mobile: req.Mobile,
Passwd: req.Passwd,
}
result := l.svcCtx.DbEngin.Create(&user)
return &types.UserOptResp{
Id: user.ID,
}, result.Error
}