gin实战（一） - gin实战（二） - 《GO 开发知识笔记》

package main
import (
    "encoding/xml"
    "fmt"
    "html/template"
    "net/http"
    "time"
    "github.com/gin-gonic/gin"
)
type UserInfo struct {
    Username string `json:"username" form:"username"`
    Password string `json:"password" form:"password"`
}
type Article struct {
    Title   string `json:"title" xml:"title"`
    Content string `json:"content" xml:"content"`
}
//时间戳转换成日期
func UnixToTime(timestamp int) string {
    fmt.Println(timestamp)
    t := time.Unix(int64(timestamp), 0)
    return t.Format("2006-01-02 15:04:05")
}
func main() {
    // 创建一个默认的路由引擎
    r := gin.Default()
    //自定义模板函数  注意要把这个函数放在加载模板前
    r.SetFuncMap(template.FuncMap{
        "UnixToTime": UnixToTime,
    })
    //加载模板 放在配置路由前面
    r.LoadHTMLGlob("templates/**/*")
    //配置静态web目录   第一个参数表示路由, 第二个参数表示映射的目录
    r.Static("/static", "./static")
    //Get 请求传值
    r.GET("/", func(c *gin.Context) {
        username := c.Query("username")
        age := c.Query("age")
        page := c.DefaultQuery("page", "1")
        c.JSON(http.StatusOK, gin.H{
            "username": username,
            "age":      age,
            "page":     page,
        })
    })
    //Get 请求传值   id
    r.GET("/article", func(c *gin.Context) {
        id := c.DefaultQuery("id", "1")
        c.JSON(http.StatusOK, gin.H{
            "msg": "新闻详情",
            "id":  id,
        })
    })
    //post演示
    r.GET("/user", func(c *gin.Context) {
        c.HTML(http.StatusOK, "default/user.html", gin.H{})
    })
    //获取表单post过来的数据
    r.POST("/doAddUser1", func(c *gin.Context) {
        username := c.PostForm("username")
        password := c.PostForm("password")
        age := c.DefaultPostForm("age", "20")
        c.JSON(http.StatusOK, gin.H{
            "username": username,
            "password": password,
            "age":      age,
        })
    })
    //获取 GET POST 传递的数据绑定到结构体
    //http://localhost:8080/getUser?username=zhangsan&password=1111
    r.GET("/getUser", func(c *gin.Context) {
        user := &UserInfo{}
        if err := c.ShouldBind(&user); err == nil {
            fmt.Printf("%#v", user)
            c.JSON(http.StatusOK, user)
        } else {
            c.JSON(http.StatusOK, gin.H{
                "err": err.Error(),
            })
        }
    })
    r.POST("/doAddUser2", func(c *gin.Context) {
        user := &UserInfo{}
        if err := c.ShouldBind(&user); err == nil {
            c.JSON(http.StatusOK, user)
        } else {
            c.JSON(http.StatusBadRequest, gin.H{
                "err": err.Error(),
            })
        }
    })
    //获取 Post Xml 数据
    r.POST("/xml", func(c *gin.Context) {
        article := &Article{}
        xmlSliceData, _ := c.GetRawData() //获取 c.Request.Body 读取请求数据
        fmt.Println(xmlSliceData)
        if err := xml.Unmarshal(xmlSliceData, &article); err == nil {
            c.JSON(http.StatusOK, article)
        } else {
            c.JSON(http.StatusBadRequest, gin.H{
                "err": err.Error(),
            })
        }
    })
    // 动态路由传值
    //  list/123          list/456
    r.GET("/list/:cid", func(c *gin.Context) {
        cid := c.Param("cid")
        c.String(200, "%v", cid)
    })
    //后台
    r.GET("/admin", func(c *gin.Context) {
        c.HTML(http.StatusOK, "admin/index.html", gin.H{
            "title": "后台首页",
        })
    })
    r.Run()
}

{{ define "admin/index.html" }}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h2>这是后台首页</h2>
</body>
</html>
{{ end }}

{{ define "admin/news.html" }}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h2>后台新闻页面</h2>
</body>
</html>
{{ end }}

<!-- 相当于给模板定义一个名字 define end 成对出现-->
{{ define "default/index.html" }}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="/static/css/base.css">
</head>
<body>
    <h1>Post演示</h1>
</body>
</html>
{{ end }}

<!-- 相当于给模板定义一个名字 define end 成对出现-->
{{ define "default/user.html" }}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="static/css/base.css">
</head>
<body>
    <form action="/doAddUser2" method="post">
        用户名:<input type="text" name="username" /> <br><br>
        密码:<input type="password" name="password" /> <br><br>      
        <input type="submit" value="提交">
    </form>
</body>
</html>
{{end}}

<!-- 相当于给模板定义一个名字 define end 成对出现-->
{{ define "public/page_footer.html" }}
    <h1>
        我是一个公共的底部
    </h1>
{{end}}

<!-- 相当于给模板定义一个名字 define end 成对出现-->
{{ define "public/page_header.html" }}
    <h1>
        我是一个公共的标题---{{.title}}
    </h1>
{{end}}

源码.7z