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micro-go-book's Issues

令牌实现

请问令牌相关的方法是在哪里实现的呢?
有点晕

13章的token认证服务代码里面有个interface的小坑

这行的语句
tokenService.tokenEnhancer != nil
这句可能会有个坑,关于Interface跟nil做比较,可能得先转换才能做比较
tokenService.tokenEnhancer.(*JwtTokenEnhancer) != nil

举个例子:

func main() {
	var a1 *a

	b := test{t1:a1}
	fmt.Println(b.isT1())
}

type test struct {
	t1 test1
}
func (this *test)isT1() bool {
	return this.t1 == nil
}

type test1 interface {
	t()
}
type a struct {}
func (this *a)t()  {}

以上代码输出false,但是吧
this.t1 == nil 改成
this.t1.(*a) == nil
后输出true

Gin中间件问题

ch5-web/gin/main.go中AuthMiddleWare函数的第3行check(token), 编译器无法解析check函数

11章代码问题

	var tokenService service.TokenService
	var tokenGranter service.TokenGranter
	var tokenEnhancer service.TokenEnhancer
	var tokenStore service.TokenStore
	var userDetailsService service.UserDetailsService
	var clientDetailsService service.ClientDetailsService
	var srv service.Service


	tokenEnhancer = service.NewJwtTokenEnhancer("secret")
	tokenStore = service.NewJwtTokenStore(tokenEnhancer.(*service.JwtTokenEnhancer))
	tokenService = service.NewTokenService(tokenStore, tokenEnhancer)

这里的定义感觉不太好,
service.NewJwtTokenStore(tokenEnhancer.(*service.JwtTokenEnhancer))
这里的形参应该定义成接口,而这里声明部分使用了接口声明,
然后NewJwtTokenEnhancer以后传给接口变量,最后传给NewJwtTokenStore做实参的时候又将接口类型转换成结构体
规范写法应该在NewJwtTokenStore接收的地方就是接口
这样写让看代码的人感觉结构不清晰

勘误:反射

ch4-feature/reflection/reflection.go
func (hero *Hero) Run() string {
fmt.Println("I am running at speed " + string(hero.Speed))
return "Running"
}

应该改为
fmt.Println("I am running at speed ", hero.Speed)

同时书中81页的预期输出
I am running at speed d
应改为
I am running at speed 100

项目运行

没有在ch8-config文件夹下发现有 config-service项目

书评

想请问作者觉得这本书值得看吗 关于这本书看到了一些好评也看到了不少中评

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