作为后端开发，初识一门语言时，选一款合适的 Web 框架是很有必要的。
经过这篇文章 6 款最棒的 Go 语言 Web 框架简介的介绍，有理由相信 iris 是目前最优秀的 Web 框架，今天简单了解下这个框架的使用。
下载
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| $ go get -u github.com/kataras/iris
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Hello World
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| package main
import (
"github.com/kataras/iris"
)
var app *iris.Application
func main() {
app = iris.Default()
app.Get("/hello", func(ctx iris.Context) {
ctx.JSON(iris.Map{
"message": "Hello World",
})
})
// listen and serve on http://0.0.0.0:8080.
app.Run(iris.Addr(":8080"))
}
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初始化和路由配置都很简单
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| $ go run main.go
$ http :8080/hello
HTTP/1.1 200 OK
Content-Length: 25
Content-Type: application/json; charset=UTF-8
Date: Thu, 28 Feb 2019 07:25:00 GMT
{
"message": "Hello World"
}
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日志输出
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| package main
import (
"github.com/kataras/iris"
"github.com/kataras/iris/middleware/logger"
)
var app *iris.Application
func main() {
app = iris.Default()
app.Use(logger.New())
app.Logger().SetLevel("debug")
app.Get("/hello", func(ctx iris.Context) {
app.Logger().Debug("Hello World")
app.Logger().Info("Hello World")
app.Logger().Error("Hello World")
ctx.JSON(iris.Map{
"message": "Hello World",
})
})
// listen and serve on http://0.0.0.0:8080.
app.Run(iris.Addr(":8080"))
}
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template 使用
使项目目录结构如下
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| .
├── README.md
├── main.go
├── static
│ └── hello.js
└── templates
└── index.html
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注册 template 目录和匹配文件
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| app.RegisterView(iris.HTML("./templates", ".html"))
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初始化静态文件目录
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| app.StaticWeb("static", "./static")
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传递 template 变量，并显示页面
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| app.Get("/index", func(ctx iris.Context) {
ctx.ViewData("name", "wxnacy")
ctx.View("index.html")
})
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运行
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| $ go run main.go
$ http :8080/index
HTTP/1.1 200 OK
Content-Length: 129
Content-Type: text/html; charset=UTF-8
Date: Thu, 28 Feb 2019 07:56:57 GMT
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
Hello wxnacy
</body>
</html>
$ http :8080/static/hello.js
HTTP/1.1 200 OK
Accept-Ranges: bytes
Content-Length: 51
Content-Type: application/javascript; charset=UTF-8
Date: Thu, 28 Feb 2019 07:57:33 GMT
Last-Modified: Thu, Feb 28 2019 07:47:22 GMT
function hello(){
console.log("Hello World");
};
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完整代码地址：https://github.com/wxnacy/study/tree/master/goland/src/iris_examples/mvc-templates
更多的 method
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| app.Post("/", func(ctx iris.Context){}) -> for POST http method.
app.Put("/", func(ctx iris.Context){})-> for "PUT" http method.
app.Delete("/", func(ctx iris.Context){})-> for "DELETE" http method.
app.Options("/", func(ctx iris.Context){})-> for "OPTIONS" http method.
app.Trace("/", func(ctx iris.Context){})-> for "TRACE" http method.
app.Head("/", func(ctx iris.Context){})-> for "HEAD" http method.
app.Connect("/", func(ctx iris.Context){})-> for "CONNECT" http method.
app.Patch("/", func(ctx iris.Context){})-> for "PATCH" http method.
app.Any("/", func(ctx iris.Context){}) for all http methods.
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更多例子