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Aspose Slide 生成图片缩略图中文乱码

Nov 15, 2022
One minute read

aspose slide生成图片缩略图中文乱码使用aspose slide 给ppt生成图片缩略图，mac上没问题，部署到服务器上，生成的缩略图中文全部都是方块把mac的字体传到服务器上还是不行,读取ppt时会出现 class com.aspose.slides.PptxReadException: Index 32 out of bounds for length 32 ---> class com.aspose.slides.ms.pbdb106a0.bt com.aspose.slides.avm.do(Unknown Source) com.aspose.slides.Presentation.int(Unknown Source) com.aspose.slides.Presentation.if(Unknown Source) com.aspose.slides.Presentation.<init>(Unknown Source) com.aspose.slides.Presentation.<init>(Unknown Source) 这个错误，后来换成使用win10的字体可以了 centos7的步骤把字体上传到 /usr/share/fonts/win 目录 cd /usr/share/fonts/win mkfontscale //建立索引 fc-cache //刷新缓存 fc-list //查看字体列表 fc-list :lang=zh......

goquery 处理中文网页

Nov 9, 2022
One minute read

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 爬虫处理网页，标签用的gb2312字符集，goquery拿到的是乱码刚开始用的 func DecodeToGBK2312(text string) string { dst := make([]byte, len(text)*2) tr := simplifiedchinese.HZGB2312.NewDecoder() nDst, _, _ := tr.Transform(dst, []byte(text), true) return string(dst[:nDst]) } 还是乱码。。。。后来在wiki里找了一种方法 func detectContentCharset(body io.Reader) string { r := bufio.NewReader(body) if data, err := r.Peek(1024); err == nil { if _, name, ok := charset.DetermineEncoding(data, ""); ok { return name } } return "utf-8" } // DecodeHTMLBody returns an decoding reader of the html Body for the specified `charset` // If `charset` is empty, DecodeHTMLBody tries to guess the encoding from the content func DecodeHTMLBody(body io.Reader, charset string) (io.Reader, error) { if charset == "" { charset = detectContentCharset(body) } e, err := htmlindex.Get(charset) if err != nil { return nil, err } if name, _ := htmlindex.Name(e); name != "utf-8" { body = e.NewDecoder().Reader(body) } return body, nil } 试了下如果......

fix Cloudflare R2 Network connection lost error

Nov 1, 2022
2 minutes read

想白嫖下cloudflare的R2，workers上传文件的时候总是会出现Network connection lost error错误，用的Hono包，完全照着cloudflare的官方文档抄 export const AddFile = async (c: Context): Promise<Response> => { //save object const data = await c.req.formData(); const file: File = data.get("file") as File; const name = await md5(file) as string; const bucket = c.env.DRIVE as R2Bucket try { const saved = await bucket.put(name, file, { httpMetadata: { contentType: file.type }, customMetadata: { createdAt: Date.now().toString(), } }) } catch (e) { console.log(e) return Error(c, CODE_CLOUDFLARE_SERVICE_FAILED, 'service unavailable,please try again later') } return Success(c, 'ok') } 结果总是网络链接断开,用wrangler还有网站的Real-time Logs 啥信息都看不出来......