beego 点滴

在使用beego时遇到 need a primary key field

1 确保结构中的 字段首字母大写
2 beego默认主键是id  如果主键定义的是其他字段比如userid 那么加上orm pk

type User struct {
    Id int  `orm:"pk;column(Userid);"`
    Name string
}

 beego 上传文件

package main

import (
    "github.com/astaxie/beego"
)

type UploadController struct {
    beego.Controller
}
func (this *UploadController) Post() {
    this.SaveToFile("uploadfile", "./static/files/",true)
    this.Ctx.Redirect(302, "/upload")

}
/*
 * fromfile  input type=file name=fromfile
 * tofilepath the path where the file going to save
 * newfilename boolen  is create new name or use original name
 */
func (c *UploadController) SaveToFile(fromfile, tofilepath string, newfilename bool) error {
    file, h, err := c.Ctx.Request.FormFile(fromfile)
    if err != nil {
        return err
    }
    defer file.Close()
    newname := h.Filename
    if newfilename {
        newname = fmt.Sprintf("%v%s", time.Now().Unix(), path.Ext(h.Filename))
    }
    tofilepath = path.Join(tofilepath, newname)
    f, err := os.OpenFile(tofilepath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
    if err != nil {
        return err
    }
    defer f.Close()
    io.Copy(f, file)
    return nil
}
func main() { 
　　beego.Router("/upload", &UploadController{}) beego.Run() 
}

 

<head>
    <title>上传文件</title>
</head>
<body>

<form enctype="multipart/form-data" action="/upload" method="post">
  <input type="file" name="uploadfile" />
  <input type="submit" value="upload" />
</form>

</body>
</html>

 

posted @ 2015-04-10 10:30  wangxusummer  阅读(1105)  评论(0)  编辑  收藏  举报