https://github.com/studygolang/studygolang
[stat]
; 用户在线数据存到哪里：redis -> 表示存入 redis，这样支持多机部署
; online_store = redis
http://mysite:8088/captcha/YRa5C0yRg2I8TFhRZyDc.png
开启server服务
package main
import (
"net/http"
"github.com/labstack/echo"
)
func main() {
e := echo.New()
e.GET("/", func(c echo.Context) error {
return c.String(http.StatusOK, "Hello, World!")
})
e.Logger.Fatal(e.Start(":1323"))
}
GOROOT=D:Go #gosetup
GOPATH=D:ctGO #gosetup
D:Goingo.exe build -i -o D:MYTMPhere\___go_build_myT_go__1_.exe D:/ctGO/goEcho/myT.go #gosetup
"D:GoLand 2017.3in
unnerw.exe" D:MYTMPhere\___go_build_myT_go__1_.exe #gosetup
____ __
/ __/___/ / ___
/ _// __/ _ / _
/___/\__/_//_/\___/ v3.3.dev
High performance, minimalist Go web framework
e := echo.New()
/*
静态文件
Echo#Static(prefix, root string) 用一个 url 路径注册一个新的路由来提供静态文件的访问服务。root 为文件根目录。
这样会将所有访问/static/*的请求去访问assets目录。例如，一个访问/static/js/main.js的请求会匹配到assets/js/main.js这个文件。
*/
e.Static("/static", "assets")
/*
设置主页
Echo#File(path, file string) 使用 url 路径注册一个新的路由去访问某个静态文件。
*/
e.File("/", "public/index.html")
Go 语言之旅 https://tour.go-zh.org/moretypes/1
Go 拥有指针。指针保存了值的内存地址。
类型 *T 是指向 T 类型值的指针。其零值为 nil。
var p *int
& 操作符会生成一个指向其操作数的指针。
i := 42 p = &i
* 操作符表示指针指向的底层值。
fmt.Println(*p) // 通过指针 p 读取 i *p = 21 // 通过指针 p 设置 i
这也就是通常所说的“间接引用”或“重定向”。
与 C 不同，Go 没有指针运算。
package main
import "fmt"
func main() {
i, j := 42, 2701
p := &i // point to i
fmt.Println(*p) // read i through the pointer
*p = 21 // set i through the pointer
fmt.Println(i) // see the new value of i
p = &j // point to j
*p = *p / 37 // divide j through the pointer
fmt.Println(j) // see the new value of j
}
42 21 73
模板 - Go/Golang 框架 Echo 文档 http://go-echo.org/guide/templates/
D:ctGOgoEchomyT.go
package main
import (
"net/http"
"github.com/labstack/echo"
"io"
"html/template"
)
/*
1.实现 echo.Renderer 接口
*/
type Template struct {
templates *template.Template
}
func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
return t.templates.ExecuteTemplate(w, name, data)
}
/*
4.在 action 中渲染模板
*/
func Hello(c echo.Context) error {
return c.Render(http.StatusOK, "hello", "World")
}
func main() {
/*
2.预编译模板
*/
t := &Template{
templates: template.Must(template.ParseGlob("goEchopublic/views/*.html")),
}
/*
3.注册模板
*/
e := echo.New()
e.Renderer = t
e.GET("/hello", Hello)
e.Logger.Fatal(e.Start(":1323"))
}
goEchopublic/views/*.html是相对于GOPATH的路径
D:ctGOgoEchopublicviewshello.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>HelloWorld</title>
</head>
<body>
{{define "hello"}}Hello, {{.}}!{{end}}
</body>
</html>
自定义上下文
package main
import (
"net/http"
"github.com/labstack/echo"
"io"
"html/template"
)
/*
1.实现 echo.Renderer 接口
*/
type Template struct {
templates *template.Template
}
func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
return t.templates.ExecuteTemplate(w, name, data)
}
/*
4.在 action 中渲染模板
*/
func Hello(c echo.Context) error {
return c.Render(http.StatusOK, "hello", "商机直投")
}
/*
自定义一个 context
Define a custom context
Context - Go/Golang 框架 Echo 文档 http://go-echo.org/guide/context/
*/
type CustomContext struct {
echo.Context
}
func (c *CustomContext) Foo() {
println("foo")
}
func (c *CustomContext) Bar() {
println("bar")
}
func main() {
/*
2.预编译模板
*/
t := &Template{
templates: template.Must(template.ParseGlob("goEchopublic/views/*.html")),
}
/*
3.注册模板
*/
e := echo.New()
e.Renderer = t
/*
创建一个中间件来扩展默认的 context
Create a middleware to extend default context
*/
e.Use(func(h echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
cc := &CustomContext{c}
return h(cc)
}
})
/*
这个中间件要在所有其它中间件之前注册到路由上。
This middleware should be registered before any other middleware.
*/
/*
在业务处理中使用
Use in handler
*/
e.GET("/scriptAdmin", Hello)
e.GET("/scriptAdminA", func(c echo.Context) error {
cc := c.(*CustomContext)
cc.Foo()
cc.Bar()
return cc.String(200, "OK")
})
e.Logger.Fatal(e.Start(":1323"))
}
host:1323/scriptAdmin
host:1323/scriptAdminA
echo.Context represents the context of the current HTTP request.
It holds request and response reference, path, path parameters, data, registered handler and APIs to read request and write response.
As Context is an interface, it is easy to extend it with custom APIs.
echo.Context 代表了当前 HTTP 请求的 context（上下文？这里看个人理解吧，就不翻译了）。
它含有请求和相应的引用，路径，路径参数，数据，注册的业务处理方法和读取请求和输出响应的API。
由于 Context 是一个接口，所以也可以很方便的使用自定义的 API 扩展。
D:ctGOgoEchomyT.go
package main
import (
"net/http"
"github.com/labstack/echo"
"io"
"html/template"
"fmt"
)
/*
1.实现 echo.Renderer 接口
*/
type Template struct {
templates *template.Template
}
func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
return t.templates.ExecuteTemplate(w, name, data)
}
/*
4.在 action 中渲染模板
*/
func Hello(c echo.Context) error {
return c.Render(http.StatusOK, "hello", "chkUrl")
}
/*
自定义一个 context
Define a custom context
Context - Go/Golang 框架 Echo 文档 http://go-echo.org/guide/context/
*/
type CustomContext struct {
echo.Context
}
func (c *CustomContext) Foo() {
println("foo")
}
func (c *CustomContext) Bar() {
println("bar")
}
type ScriptsStruct struct {
Host string
Port int
Path string
ScriptName string
}
var ScriptsNamesList = [6]string{}
var s2 = ScriptsStruct{"123.123.123.123", 8088, "/myDir/", "spider.go"}
func (c *CustomContext) DumpScripts() {
println("bar")
s1 := ScriptsStruct{"123.123.123.123", 8088, "/myDir/", "spider.go"}
fmt.Println(s1.Host)
}
func main() {
/*
2.预编译模板
*/
t := &Template{
templates: template.Must(template.ParseGlob("goEchopublic/views/*.html")),
}
/*
3.注册模板
*/
e := echo.New()
e.Renderer = t
/*
创建一个中间件来扩展默认的 context
Create a middleware to extend default context
*/
e.Use(func(h echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
cc := &CustomContext{c}
return h(cc)
}
})
/*
这个中间件要在所有其它中间件之前注册到路由上。
This middleware should be registered before any other middleware.
*/
/*
在业务处理中使用
Use in handler
*/
e.GET("/scriptAdmin01", Hello)
e.GET("/scriptAdmin", func(c echo.Context) error {
cc := c.(*CustomContext)
cc.Foo()
cc.Bar()
cc.DumpScripts()
fmt.Println(ScriptsNamesList)
return c.Render(http.StatusOK, "hello", s2)
})
e.Logger.Fatal(e.Start(":1323"))
}
D:ctGOgoEchopublicviewshello.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
{{define "hello"}}web脚本管理-{{.}}!{{.Host}}{{end}}
</body>
</html>
http://localhost:1323/scriptAdmin01
{"message":"Internal Server Error"}
http://localhost:1323/scriptAdmin
web脚本管理-{123.123.123.123 8088 /myDir/ spider.go}!123.123.123.123
静态文件加载
{{define "WeUI"}}
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
<title>WeUI</title>
<link rel="stylesheet" href="/static/WeUI_files/weui.css">
<link rel="stylesheet" href="/static/WeUI_files/example.css">
</head>
<body>
web脚本管理-weui-{{.}}!{{.}}
<ul>
<li>
<div class="weui-flex js_category">
<p class="weui-flex__item">表单</p>
<img src="/static/images/icon_nav_form.png" alt="">
</div>
<div class="page__category js_categoryInner">
<div class="weui-cells page__category-content">
<a class="weui-cell weui-cell_access js_item" data-id="button" href="javascript:;">
<div class="weui-cell__bd">
<p>Button</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="input" href="javascript:;">
<div class="weui-cell__bd">
<p>Input</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="list" href="javascript:;">
<div class="weui-cell__bd">
<p>List</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="slider" href="javascript:;">
<div class="weui-cell__bd">
<p>Slider</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="uploader" href="javascript:;">
<div class="weui-cell__bd">
<p>Uploader</p>
</div>
<div class="weui-cell__ft"></div>
</a>
</div>
</div>
</li>
<li>
<div class="weui-flex js_category">
<p class="weui-flex__item">基础组件</p>
<img src="/static/images/icon_nav_layout.png" alt="">
</div>
<div class="page__category js_categoryInner">
<div class="weui-cells page__category-content">
<a class="weui-cell weui-cell_access js_item" data-id="article" href="javascript:;">
<div class="weui-cell__bd">
<p>Article</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="badge" href="javascript:;">
<div class="weui-cell__bd">
<p>Badge</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="flex" href="javascript:;">
<div class="weui-cell__bd">
<p>Flex</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="footer" href="javascript:;">
<div class="weui-cell__bd">
<p>Footer</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="gallery" href="javascript:;">
<div class="weui-cell__bd">
<p>Gallery</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="grid" href="javascript:;">
<div class="weui-cell__bd">
<p>Grid</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="icons" href="javascript:;">
<div class="weui-cell__bd">
<p>Icons</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="loadmore" href="javascript:;">
<div class="weui-cell__bd">
<p>Loadmore</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="panel" href="javascript:;">
<div class="weui-cell__bd">
<p>Panel</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="preview" href="javascript:;">
<div class="weui-cell__bd">
<p>Preview</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="progress" href="javascript:;">
<div class="weui-cell__bd">
<p>Progress</p>
</div>
<div class="weui-cell__ft"></div>
</a>
</div>
</div>
</li>
<li>
<div class="weui-flex js_category">
<p class="weui-flex__item">操作反馈</p>
<img src="/static/images/icon_nav_feedback.png" alt="">
</div>
<div class="page__category js_categoryInner">
<div class="weui-cells page__category-content">
<a class="weui-cell weui-cell_access js_item" data-id="actionsheet" href="javascript:;">
<div class="weui-cell__bd">
<p>Actionsheet</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="dialog" href="javascript:;">
<div class="weui-cell__bd">
<p>Dialog</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="msg" href="javascript:;">
<div class="weui-cell__bd">
<p>Msg</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="picker" href="javascript:;">
<div class="weui-cell__bd">
<p>Picker</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="toast" href="javascript:;">
<div class="weui-cell__bd">
<p>Toast</p>
</div>
<div class="weui-cell__ft"></div>
</a>
</div>
</div>
</li>
<li>
<div class="weui-flex js_category">
<p class="weui-flex__item">导航相关</p>
<img src="/static/images/icon_nav_nav.png" alt="">
</div>
<div class="page__category js_categoryInner">
<div class="weui-cells page__category-content">
<a class="weui-cell weui-cell_access js_item" data-id="navbar" href="javascript:;">
<div class="weui-cell__bd">
<p>Navbar</p>
</div>
<div class="weui-cell__ft"></div>
</a>
<a class="weui-cell weui-cell_access js_item" data-id="tabbar" href="javascript:;">
<div class="weui-cell__bd">
<p>Tabbar</p>
</div>
<div class="weui-cell__ft"></div>
</a>
</div>
</div>
</li>
<li>
<div class="weui-flex js_category">
<p class="weui-flex__item">搜索相关</p>
<img src="/static/images/icon_nav_search.png" alt="">
</div>
<div class="page__category js_categoryInner">
<div class="weui-cells page__category-content">
<a class="weui-cell weui-cell_access js_item" data-id="searchbar" href="javascript:;">
<div class="weui-cell__bd">
<p>Search Bar</p>
</div>
<div class="weui-cell__ft"></div>
</a>
</div>
</div>
</li>
<li>
<div class="weui-flex js_item" data-id="layers">
<p class="weui-flex__item">层级规范</p>
<img src="/static/images/icon_nav_z-index.png" alt="">
</div>
</li>
</ul>
</body>
</html>
{{end}}
package main
import (
"net/http"
"github.com/labstack/echo"
"io"
"html/template"
"fmt"
)
/*
1.实现 echo.Renderer 接口
*/
type Template struct {
templates *template.Template
}
func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
return t.templates.ExecuteTemplate(w, name, data)
}
/*
4.在 action 中渲染模板
*/
func Hello(c echo.Context) error {
return c.Render(http.StatusOK, "WeUI", "chkUrl")
}
/*
自定义一个 context
Define a custom context
Context - Go/Golang 框架 Echo 文档 http://go-echo.org/guide/context/
*/
type CustomContext struct {
echo.Context
}
func (c *CustomContext) Foo() {
println("foo")
}
func (c *CustomContext) Bar() {
println("bar")
}
type ScriptsStruct struct {
Host string
Port int
Path string
ScriptName string
}
var ScriptsNamesList = [6]string{}
var s2 = ScriptsStruct{"123.123.123.123", 8088, "/myDir/", "spider.go"}
func (c *CustomContext) DumpScripts() {
println("bar")
s1 := ScriptsStruct{"123.123.123.123", 8088, "/myDir/", "spider.go"}
fmt.Println(s1.Host)
}
func main() {
/*
2.预编译模板
*/
t := &Template{
templates: template.Must(template.ParseGlob("goEchopublic/views/*.html")),
}
/*
3.注册模板
*/
e := echo.New()
e.Renderer = t
/*
静态文件
Echo#Static(prefix, root string) 用一个 url 路径注册一个新的路由来提供静态文件的访问服务。root 为文件根目录。
这样会将所有访问/static/*的请求去访问assets目录。例如，一个访问/static/js/main.js的请求会匹配到assets/js/main.js这个文件。
*/
e.Static("/static", "assets")
/*
创建一个中间件来扩展默认的 context
Create a middleware to extend default context
*/
e.Use(func(h echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
cc := &CustomContext{c}
return h(cc)
}
})
/*
这个中间件要在所有其它中间件之前注册到路由上。
This middleware should be registered before any other middleware.
*/
/*
在业务处理中使用
Use in handler
*/
e.GET("/scriptAdmin01", Hello)
e.GET("/WeUI", func(c echo.Context) error {
fmt.Println("test-")
return c.Render(http.StatusOK, "WeUI", "data--")
})
e.GET("/scriptAdmin", func(c echo.Context) error {
cc := c.(*CustomContext)
cc.Foo()
cc.Bar()
cc.DumpScripts()
fmt.Println(ScriptsNamesList)
return c.Render(http.StatusOK, "hello", s2)
})
e.Logger.Fatal(e.Start(":1323"))
}
http://localhost:1323/WeUI
遍历循环
package main
import (
"net/http"
"github.com/labstack/echo"
"io"
"html/template"
"fmt"
)
/*
1.实现 echo.Renderer 接口
*/
type Template struct {
templates *template.Template
}
func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
return t.templates.ExecuteTemplate(w, name, data)
}
/*
4.在 action 中渲染模板
*/
func Hello(c echo.Context) error {
return c.Render(http.StatusOK, "WeUI", "chkUrl")
}
/*
自定义一个 context
Define a custom context
Context - Go/Golang 框架 Echo 文档 http://go-echo.org/guide/context/
*/
type CustomContext struct {
echo.Context
}
func (c *CustomContext) Foo() {
println("foo")
}
func (c *CustomContext) Bar() {
println("bar")
}
type ScriptStruct struct {
Host string
Port int
Path string
ScriptName string
}
var s2 = ScriptStruct{"123.123.123.123", 8088, "/myDir/", "spider.go"}
var ScriptArr [6]ScriptStruct
func (c *CustomContext) DumpScripts() {
println("bar")
s1 := ScriptStruct{"123.123.123.123", 8088, "/myDir/", "spider.go"}
ScriptArr[0] = s2
fmt.Println(s1.Host)
}
func main() {
/*
2.预编译模板
*/
t := &Template{
templates: template.Must(template.ParseGlob("goEchopublic/views/*.html")),
}
/*
3.注册模板
*/
e := echo.New()
e.Renderer = t
/*
静态文件
Echo#Static(prefix, root string) 用一个 url 路径注册一个新的路由来提供静态文件的访问服务。root 为文件根目录。
这样会将所有访问/static/*的请求去访问assets目录。例如，一个访问/static/js/main.js的请求会匹配到assets/js/main.js这个文件。
*/
e.Static("/static", "assets")
/*
创建一个中间件来扩展默认的 context
Create a middleware to extend default context
*/
e.Use(func(h echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
cc := &CustomContext{c}
return h(cc)
}
})
/*
这个中间件要在所有其它中间件之前注册到路由上。
This middleware should be registered before any other middleware.
*/
/*
在业务处理中使用
Use in handler
*/
e.GET("/scriptAdmin01", Hello)
e.GET("/WeUI", func(c echo.Context) error {
fmt.Println("test-")
return c.Render(http.StatusOK, "WeUI", "data--")
})
e.GET("/scriptAdmin", func(c echo.Context) error {
cc := c.(*CustomContext)
cc.Foo()
cc.Bar()
cc.DumpScripts()
fmt.Println(ScriptArr)
return c.Render(http.StatusOK, "hello", s2)
})
e.GET("/chkUrl", func(c echo.Context) error {
fmt.Println("test-chkUrl")
cc := c.(*CustomContext)
cc.DumpScripts()
return c.Render(http.StatusOK, "chkUrl", ScriptArr)
})
e.Logger.Fatal(e.Start(":1323"))
}
{{define "chkUrl"}}
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
<title>chkUrl--脚本管理</title>
<link rel="stylesheet" href="/static/WeUI_files/weui.css">
<link rel="stylesheet" href="/static/WeUI_files/example.css">
</head>
<body style="margin:1em ;">
{{range .}}
{{.}}
{{.Host}}
{{end}}
<div class="weui-cells page__category-content">
<div class="page__hd">
<h1 class="page__title">List</h1>
<p class="page__desc">列表</p>
</div>
<div class="page__bd">
<div class="weui-cells__title">带说明的列表项</div>
<div class="weui-cells">
<div class="weui-cell">
<div class="weui-cell__bd">
<p>标题文字</p>
</div>
<div class="weui-cell__ft">说明文字</div>
</div>
<div class="weui-cell weui-cell_swiped">
<div class="weui-cell__bd" style="transform: translateX(-68px)">
<div class="weui-cell">
<div class="weui-cell__bd">
<p>标题文字</p>
</div>
<div class="weui-cell__ft">说明文字</div>
</div>
</div>
<div class="weui-cell__ft">
<a class="weui-swiped-btn weui-swiped-btn_warn" href="javascript:">运行</a>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
{{end}}
