init

libs/file.go

@@ -0,0 +1,36 @@
+package libs
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+type File struct {
+}
+
+// 下载图片到临时文件
+func (*File) DownloadImage(url string) (string, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	// 创建临时文件
+	tempDir := os.TempDir()
+	tempFile := filepath.Join(tempDir, fmt.Sprintf("upload-%d.jpg", time.Now().UnixNano()))
+
+	out, err := os.Create(tempFile)
+	if err != nil {
+		return "", err
+	}
+	defer out.Close()
+
+	// 复制文件内容
+	_, err = io.Copy(out, resp.Body)
+	return tempFile, err
+}