修改

pkg/common/utils/captcha.go

@@ -3,6 +3,7 @@ package utils
 import (
 	"bytes"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"image"
 	"image/color"
@@ -18,8 +19,9 @@ import (
 )
 
 const (
-	ImgURL  = "https://cdns.fontree.cn/fonchain-main/test/image/artwork/config/slidCode_%d.jpg"
-	ImgPath = "./code/%d.jpg" //本地路径，暂不使用
+	ImgURL     = "https://cdns.fontree.cn/fonchain-main/test/image/artwork/config/slidCode_%d.jpg"
+	ImgPath    = "./code/%d.jpg" //本地路径，暂不使用
+	ImgPathPng = "./code/%d.png" //本地路径，暂不使用
 )
 
 // 生成指定范围内的随机数
@@ -29,41 +31,71 @@ func GetNonceByRange(start, end int) int {
 }
 
 // 获取缓冲图片，可能是通过URL或本地路径
-func GetBufferedImage(place int) (image.Image, error) {
+func GetBufferedImage(place int, canvasWidth, canvasHeight int) (draw.Image, error) {
+	startTime := time.Now()
+	fmt.Println("")
+	fmt.Println("")
+	fmt.Println("")
+	fmt.Println("1---")
 	nonce := GetNonceByRange(1, 10)
 	var imgURL string
+	//place = 0 // 注意，这边的图片现在只使用url图片
+	if place == 1 {
 
-	place = 0 // 注意，这边的图片现在只使用url图片
-
-	if place == 0 {
+		fmt.Println("3-1", time.Now().Sub(startTime))
 		imgURL = fmt.Sprintf(ImgURL, nonce)
 		resp, err := http.Get(imgURL)
 		if err != nil {
 			return nil, err
 		}
+
+		fmt.Println("3-2", time.Now().Sub(startTime))
 		defer resp.Body.Close()
-		img, _, err := image.Decode(resp.Body)
+		img, ff, err := image.Decode(resp.Body)
+		fmt.Println("----", ff)
 		if err != nil {
 			return nil, err
 		}
-		return img, nil
-	} else {
-		file, err := os.Open(fmt.Sprintf(ImgPath, nonce))
+
+		fmt.Println("3-3", time.Now().Sub(startTime))
+
+		canvasImage := ImageResize(img, canvasWidth, canvasHeight).(*image.RGBA)
+
+		return canvasImage, nil
+	} else { //从redis中获取
+
+		file, err := os.Open(fmt.Sprintf(ImgPathPng, nonce))
+
+		fmt.Println("4-1", time.Now().Sub(startTime))
 		if err != nil {
 			return nil, err
 		}
 		defer file.Close()
-		img, _, err := image.Decode(file)
+
+		//img, format, err := image.Decode(file)
+		img, err := png.Decode(file)
+		format := "1"
+		fmt.Println("", err)
+		//img, err := jpeg.Decode(file)
+		fmt.Println("4-1-1", time.Now().Sub(startTime), err)
+
+		fmt.Println("4-2", time.Now().Sub(startTime), format)
 		if err != nil {
 			return nil, err
 		}
-		return img, nil
+
+		ss := ImageResize(img, canvasWidth, canvasHeight)
+		canvasImage := ss.(*image.RGBA)
+
+		return canvasImage, nil
 	}
+
+	return nil, errors.New("类型错误")
 }
 
 // 调整图片大小
 func ImageResize(bufferedImage image.Image, width, height int) image.Image {
-	return resize.Resize(uint(width), uint(height), bufferedImage, resize.Lanczos3)
+	return resize.Resize(uint(width), uint(height), bufferedImage, resize.Bilinear)
 }
 
 // CutByTemplate 根据模板裁剪图像  // 生成圆角正方形的滑块图像

pkg/service/account.go

@@ -757,8 +757,8 @@ func (a *AccountProvider) GenerateSliderCaptcha(_ context.Context, in *account.G
 	//blockRadius := captcha.BlockRadius
 	place := captcha.Place
 
-	img, _ := utils.GetBufferedImage(place)
-	canvasImage := utils.ImageResize(img, canvasWidth, canvasHeight).(*image.RGBA)
+	canvasImage, _ := utils.GetBufferedImage(place, canvasWidth, canvasHeight)
+	//canvasImage := utils.ImageResize(img, canvasWidth, canvasHeight).(*image.RGBA)
 	blockX := utils.GetNonceByRange(blockWidth, canvasWidth-blockWidth-10)
 	blockY := utils.GetNonceByRange(10, canvasHeight-blockHeight+1)
 	blockImage := image.NewRGBA(image.Rect(0, 0, blockWidth, blockHeight))