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blog_backend_api
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后端添加thumbnail接口

master
a7458969 2020-03-28 01:11:28 +08:00
parent ac8850da45
commit fc4176568e
2 changed files with 35 additions and 7 deletions
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4
.idea/workspace.xml
View File

@ -2,12 +2,8 @@
<project version="4">
<component name="ChangeListManager">
<list default="true" id="7cf7b6b3-0082-44ef-bb0f-bfcc57e19eb1" name="Default Changelist" comment="">
<change afterPath="$PROJECT_DIR$/utils/const.go" afterDir="false" />
<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
<change beforePath="$PROJECT_DIR$/controller/file.go" beforeDir="false" afterPath="$PROJECT_DIR$/controller/file.go" afterDir="false" />
<change beforePath="$PROJECT_DIR$/controller/hardware.go" beforeDir="false" afterPath="$PROJECT_DIR$/controller/hardware.go" afterDir="false" />
<change beforePath="$PROJECT_DIR$/main.go" beforeDir="false" afterPath="$PROJECT_DIR$/main.go" afterDir="false" />
<change beforePath="$PROJECT_DIR$/model/hardware.go" beforeDir="false" afterPath="$PROJECT_DIR$/model/hardware.go" afterDir="false" />
</list>
<option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
<option name="SHOW_DIALOG" value="false" />

94
controller/file.go
View File

@ -1,8 +1,11 @@
package controller
import (
"github.com/disintegration/imaging"
"github.com/gin-gonic/gin"
uuid "github.com/satori/go.uuid"
"image"
"image/color"
"io/ioutil"
"log"
"net/http"
@ -70,6 +73,66 @@ func (this *FileController) OnUpload(c *gin.Context) {
}
}
func (this *FileController) OnThumbnail(c *gin.Context) {
resp := RespBase{Msg:"FAIL",Status: 211}
fileName := c.Param("file")
if "" == fileName{
c.JSON(200,resp)
return
}
// input files
files := []string{"/home/ubuntu/api/bin/image/" +fileName}
// load images and make 100x100 thumbnails of them
var thumbnails []image.Image
for _, file := range files {
img, err := imaging.Open(file)
if err != nil {
panic(err)
}
thumb := imaging.Thumbnail(img, 100, 100, imaging.CatmullRom)
thumbnails = append(thumbnails, thumb)
}
// create a new blank image
dst := imaging.New(100*len(thumbnails), 100, color.NRGBA{0, 0, 0, 0})
// paste thumbnails into the new image side by side
for i, thumb := range thumbnails {
dst = imaging.Paste(dst, thumb, image.Pt(i*100, 0))
}
// save the combined image to file
err := imaging.Save(dst, "/home/ubuntu/api/bin/image/thumbnail_" + fileName)
if err != nil {
log.Print(err.Error())
return
}
// open file
file,e := os.Open("/home/ubuntu/api/bin/image/thumbnail_" + fileName)
if nil != e{
log.Print(e.Error())
c.JSON(200,resp)
return
}
bytes,e :=ioutil.ReadAll(file)
if nil != e{
log.Print(e.Error())
c.JSON(200,resp)
return
}
c.Header("X-Content-Type-Options", "nosniff")
c.Header("Content-Type","image/png")
c.Header("Content-Disposition",
"/image/" +fileName)
c.Writer.Write(bytes)
}
func (this *FileController) OnDownLoad(c *gin.Context) {
resp := RespBase{Msg:"FAIL",Status: 211}
@ -99,34 +162,3 @@ func (this *FileController) OnDownLoad(c *gin.Context) {
"/image/" +fileName)
c.Writer.Write(bytes)
}
func (this *FileController) OnThumbnail(c *gin.Context) {
resp := RespBase{Msg:"FAIL",Status: 211}
fileName := c.Param("file")
if "" == fileName{
c.JSON(200,resp)
return
}
file,e := os.Open("/home/ubuntu/api/bin/image/" +fileName)
if nil != e{
log.Print(e.Error())
c.JSON(200,resp)
return
}
bytes,e :=ioutil.ReadAll(file)
if nil != e{
log.Print(e.Error())
c.JSON(200,resp)
return
}
c.Header("X-Content-Type-Options", "nosniff")
c.Header("Content-Type","image/png")
c.Header("Content-Disposition",
"/image/" +fileName)
c.Writer.Write(bytes)
}