go安装iris失败, package github.com/kataras/iris: exit status 128

今天想安装个iris框架,执行命令行:go get -u -v github.com/kataras/iris

后就卡住了, 过了好久命令行提示如下:

PS C:\Users\dewff> go get -u github.com\kataras\iris
# cd .; git clone https://github.com/kataras/iris D:\go_workspace\src\github.com\kataras\iris
Cloning into 'D:\go_workspace\src\github.com\kataras\iris'...
fatal: early EOF
fatal: The remote end hung up unexpectedly
fatal: index-pack failed
error: RPC failed; curl 18 transfer closed with outstanding read data remaining
package github.com/kataras/iris: exit status 128

我的git环境变量也配了,再任意目录下都可执行git --version
求大神告知啥原因????

1个回答

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<div class="post-text" itemprop="text"> <p>I am studying Iris framework recently. I encountered a question when I was implementing the Handler. Like following:</p> <pre class="lang-golang prettyprint-override"><code>package controller import "github.com/kataras/iris" type Pages struct{ } func (p *Pages) Serve(c *iris.Context) { } </code></pre> <p>In order to use this controller, I implemented the following entry script:</p> <pre class="lang-golang prettyprint-override"><code>package main import ( "github.com/kataras/iris" "web/controller" ) func main(){ ctrl := controller.Pages{} iris.Handle("GET", "/", ctrl) iris.Listen(":8080") } </code></pre> <p>But when I compiled the code, I got the following error message:</p> <pre><code>cannot use ctrl (type controllers.Pages) as type iris.Handler in argument to iris.Handle: controllers.Pages does not implement iris.Handler (Serve method has pointer receiver) </code></pre> <p>After I changed the declaration to:</p> <pre><code>ctrl := &amp;controller.Pages{} </code></pre> <p>Then the compiler passed with no complaint. </p> <p>The question is: I thought the following statements are equal, since the GO compiler will do the conversion under the table:</p> <pre class="lang-golang prettyprint-override"><code>type Pages struct { } func (p *Pages) goWithPointer() { fmt.Println("goWithPointer") } func (p Pages) goWithValue() { fmt.Println("goWithValue") } func main() { p1 := Pages{} p2 := &amp;Pages{} p1.goWithPointer() p1.goWithValue() p2.goWithPointer() p2.goWithValue() } </code></pre> <p>Why can't I use <code>ctrl := controller.Pages{}</code> as the parameter to <code>iris.Handle()</code>, instead of <code>ctrl := &amp;controller.Pages{}</code> as the parameter to <code>iris.Handle()</code>?</p> <p>Thank you for your time and sharing.</p> </div>

Go模块:如何锁定不会被`go get -u`覆盖的特定版本?

<div class="post-text" itemprop="text"> <p>If I specify a specific branch/version using <code>go get github.com/org/package@sha_or_branch</code> it will update accordingly. But if I run <code>go get -u</code> afterwards it gets overridden with any newer version. </p> <p>Is there any way to lock it in so it doesn't change when doing a <code>go get -u</code>?</p> </div>

尝试呈现模板,但出现错误html / template:“ templates / index.html”未定义

<div class="post-text" itemprop="text"> <p>I have a simple main.go script that loads a template from a folder. The template looks like:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;T2 template&lt;/title&gt; &lt;/head&gt; &lt;body&gt; hello &lt;/body&gt; &lt;/html&gt; </code></pre> <p>The main.go script looks is:</p> <pre><code>package main import ( "fmt" "html/template" "log" "net/http" "os" "github.com/gorilla/mux" ) var ( templates = template.Must(template.ParseFiles("templates/index.html")) ) func main() { port := os.Getenv("PORT") fmt.Printf("port is: %v ", port) r := mux.NewRouter() r.HandleFunc("/hello", HomeHandler) log.Fatal(http.ListenAndServe(":"+port, r)) } func HomeHandler(w http.ResponseWriter, r *http.Request) { tmpl := "templates/index.html" err := templates.ExecuteTemplate(w, tmpl, "") if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } } </code></pre> <p>I'm not sure what is wrong here.</p> <p>The error I see in the browser is:</p> <blockquote> <p>"templates/index.html" is undefined</p> </blockquote> </div>

使用Iris-go处理身体位置

<div class="post-text" itemprop="text"> <p>I'm new in Golang, I've been doing some code tests to build an REST API using Iris framework, I'm trying to get the body data from a Post to my API but I cannot make it works, I did read the <strong>Body binder</strong> <a href="http://iris-go.com/body_binder/" rel="nofollow">http://iris-go.com/body_binder/</a> and followed the examples. The result I get is an empty structure:</p> <p>My code:</p> <pre><code>package main import ( "github.com/kataras/iris" "fmt" ) type PostAPI struct { *iris.Context } type Lead struct { fbId string email string telefono string version string mac string os string } func (p PostAPI) Post(){ lead := Lead{} err := p.ReadJSON(&amp;lead) if (err != nil) { fmt.Println("Error on reading form: " + err.Error()) return } fmt.Printf("Post! %v", lead) } func main() { iris.API("/", PostAPI{}) iris.Listen(":8080") } </code></pre> <p>The post:</p> <pre><code>curl -H "Content-Type: application/json" -X POST -d '{"fbId": "werwer","email": "werwer@gmail.com","telefono": "5555555555","version": "123","mac": "3j:3j:3j:3j","os": "uno bien chido"}' http://0.0.0.0:8080/ </code></pre> <p>The result:</p> <pre><code>Post! { } </code></pre> <p>What am I doing wrong?</p> </div>

在Iris Framework中以POST方法重定向

<div class="post-text" itemprop="text"> <p>I'm trying to redirect from the login page to the home page in the POST method, but the form doesn't redirect to any page after clicking on the submit button.</p> <p>I'm using the MVC structure of Iris Framework and the <code>Ctx.Redirect</code> method to redirect to the desired page, but it's not working.</p> <pre><code>// login_controllers.go package controllers import ( "github.com/kataras/iris/mvc" "github.com/kataras/iris" "fmt" ) type LoginFormData struct { Email string Password string } type LoginController struct { mvc.C } func (c *LoginController) Get() mvc.Result { return mvc.View{ Name: "login.html", } } func (c *LoginController) Post() { userLoginData := LoginFormData{} err := c.Ctx.ReadForm(&amp;userLoginData) if err != nil { c.Ctx.StatusCode(iris.StatusInternalServerError) c.Ctx.WriteString(err.Error()) } if userLoginData.Email == "teste@teste.com" &amp;&amp; userLoginData.Password == "123" { c.Ctx.Redirect("/", iris.StatusSeeOther) fmt.Printf("UserInner: %#v", userLoginData) c.Ctx.Writef("UserInner: %#v", userLoginData) } } </code></pre> <p>The form HTML code is:</p> <pre><code>&lt;form class="m-login__form m-form" action="/login" method="post"&gt; &lt;div class="form-group m-form__group"&gt; &lt;input class="form-control m-input" type="text" placeholder="Email" name="Email" autocomplete="off"&gt; &lt;/div&gt; &lt;div class="form-group m-form__group"&gt; &lt;input class="form-control m-input m-login__form-input--last" type="password" placeholder="Password" name="Password"&gt; &lt;/div&gt; &lt;div class="row m-login__form-sub"&gt; &lt;div class="col m--align-left"&gt; &lt;label class="m-checkbox m-checkbox--focus"&gt; &lt;input type="checkbox" name="remember"&gt; Remember me &lt;span&gt;&lt;/span&gt; &lt;/label&gt; &lt;/div&gt; &lt;div class="col m--align-right"&gt; &lt;a href="javascript:;" id="m_login_forget_password" class="m-link"&gt; Forgotten password ? &lt;/a&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class="m-login__form-action"&gt; &lt;button id="m_login_signin_submit" class="btn btn-focus m-btn m-btn--pill m-btn--custom m-btn--air"&gt; Login &lt;/button&gt; &lt;/div&gt; &lt;/form&gt; </code></pre> <p>Isn't possible to redirect in a POST method in Iris Framework/Go?</p> </div>

在$ GOPATH之外进行销售

<div class="post-text" itemprop="text"> <p>I have a project which is built in Node.js/Express.js. I want to start to rewrite this to go/iris framework. I don't want to re-factor everything into my $GOPATH and I want to keep it together my express / go / docker files for this project.</p> <p>I tried to clone iris framework's git repo into a <code>./vendor</code> subfolder, but using <code>import "github.com/kataras/iris"</code> importing nothing.</p> <p>Is there a package manager which is</p> <ul> <li><p>copying and installing packages and all of it's dependencies in <code>my-project/vendor</code> folder <strong>outside $GOPATH</strong></p></li> <li><p>it can update these import packages</p></li> <li><p><code>go run/build/install</code> outside $GOPATH</p></li> <li><p>there's now any new files in $GOPATH <code>src/pkg/bin</code> folder when I working on a project, except this package manager</p></li> <li><p>I can define dependency packages for a project like <code>package.json</code> file for <code>node.js</code></p></li> </ul> <p>Is there a go package manager like that?</p> <p>Edit:</p> <p>Running this with <code>go</code> command is not required.</p> </div>

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<div class="post-text" itemprop="text"> <p>again I'm stuck. I've been experimenting with Golang using this <a href="http://sanatgersappa.blogspot.com/2013/11/creating-master-page-for-your-go-web-app.html" rel="nofollow noreferrer">page</a> as a guide for templates to create a master page. I've managed to get the Go server up with my CSS and JS directories all updated correctly but I am only able to load the <code>index.html</code> page and not the <code>about.html</code> page. <a href="https://github.com/jzng89/TLDR-GO" rel="nofollow noreferrer">Github link here</a></p> <p>I have already tried the solutions in <a href="https://stackoverflow.com/questions/52500451/golang-template-is-undefined">here</a> and <a href="https://github.com/kataras/iris/issues/485" rel="nofollow noreferrer">here</a> but no luck, both the about page and index page are in the same directory and share the same header, footer and navigation bar templates. </p> <p>I have also tried parsing files manually with <code>template.Must(template.ParseFiles("header.html", .....</code> and also tried executing with the .html in the name <code>templ.ExecuteTemplate(w, "about.html", &amp;Page{Title: "About TL;DR"})</code> which does not return an error but instead just loads a blank screen. Any help will be greatly appreciated, thank you in advance!</p> <p>File directory:</p> <p><a href="https://i.stack.imgur.com/5vUPx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5vUPx.png" alt="File directory structure"></a></p> <p>servermain.go</p> <pre><code>package main import ( "fmt" "html/template" "log" "net/http" "os" "path/filepath" "strings" ) //Page title type Page struct { Title string } //------------------------------Global Variables-------------------------------------// //Compile templates on start var templ = ParseTemplates() //ParseTemplates use for multi directory html parsing func ParseTemplates() *template.Template { t := template.New("Base") err := filepath.Walk("./", func(path string, info os.FileInfo, err error) error { if strings.Contains(path, ".html") { _, err = t.ParseFiles(path) fmt.Println(path) if err != nil { logger.Println(err) fmt.Println(err) } } return err }) if err != nil { panic(err) } return t } //logging var errorlog *os.File var logger *log.Logger //---------------------------------------Page Handlers----------------------------------// //Handler for homepage func homepageHandler(w http.ResponseWriter, r *http.Request) { fmt.Println("Home") err := templ.ExecuteTemplate(w, "index", &amp;Page{Title: "Welcome to TL;DR"}) if err != nil { fmt.Println(err) logger.Println(err) http.Error(w, err.Error(), http.StatusInternalServerError) } } //Handler for about page func aboutHandler(w http.ResponseWriter, r *http.Request) { fmt.Println("About") err := templ.ExecuteTemplate(w, "about", &amp;Page{Title: "About TL;DR"}) if err != nil { fmt.Println(err) logger.Println(err) http.Error(w, err.Error(), http.StatusInternalServerError) } } //Server log to file func init() { errorlog, err := os.OpenFile("serverlog.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666) if err != nil { fmt.Printf("Error opening file: %v", err) os.Exit(1) } log.SetOutput(errorlog) logger = log.New(errorlog, " TDLR : ", log.Lshortfile|log.LstdFlags) } func main() { //--------------------------------------Routers-------------------------------------// http.HandleFunc("/", homepageHandler) http.HandleFunc("/index", homepageHandler) http.HandleFunc("/about", aboutHandler) http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static")))) //---------------------------------------------------------------------------------// //start server fmt.Println("Starting server on port 9090") logger.Println("Starting server on port 9090") logger.Fatal(http.ListenAndServe(":9090", nil)) } </code></pre> <p>Error page</p> <p><a href="https://i.stack.imgur.com/a3UrG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/a3UrG.png" alt="Error page"></a></p> <p>Also I noticed no matter what page I load it will always execute the <code>homepageHandler</code> after executing the <code>aboutHandler</code> as can be seen in the console.</p> <p><a href="https://i.stack.imgur.com/Pta00.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Pta00.png" alt="Console result"></a></p> <p><strong>Edit:</strong> Solved 20181215 Improper definition of the <code>about.html</code> template, change to <code>{{define "about"}}</code> solved the problem.</p> </div>

在Golearn中使用.Predict()函数时获取<nil>

<div class="post-text" itemprop="text"> <p>I'm playing around with the knnclassifier_iris.go example in the golearn examples folder. I replaced the iris dataset with one of my own, and as long as I train my data on some percentage of the data I read in, all functions work fine and I get some output. However, when I clearly mention a training and testing dataset, and then run predict on the test dataset after fitting the training dataset, I get a nil result when I try to print the predictions. I don't know why I'm getting a nil value, so I would really appreciate some help. </p> <p>My code:</p> <pre><code>package main import ( "fmt" "github.com/sjwhitworth/golearn/base" "github.com/sjwhitworth/golearn/evaluation" "github.com/sjwhitworth/golearn/knn" ) func main() { trainData, err := base.ParseCSVToInstances("~/Desktop/churn_train.csv", true) if err != nil { panic(err) } fmt.Println(trainData) testData, err := base.ParseCSVToInstances("~/Desktop/churn_test.csv", false) if err != nil { panic(err) } fmt.Println(trainData) fmt.Println(testData) //Initialises a new KNN classifier cls := knn.NewKnnClassifier("euclidean", 2) cls.Fit(trainData) //Calculates the Euclidean distance and returns the most popular label predictions := cls.Predict(testData) fmt.Println(predictions) //GETTING &lt;NIL&gt; AS OUTPUT // Prints precision/recall metrics confusionMat, err := evaluation.GetConfusionMatrix(testData, predictions) if err != nil { panic(fmt.Sprintf("Unable to get confusion matrix: %s", err.Error())) //ERROR CAUSED HERE DUE TO GETTING &lt;NIL&gt; } fmt.Println(evaluation.GetSummary(confusionMat)) } </code></pre> </div>

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