用golang在服务端将html转为word（docx）尝试
- 2019 年 12 月 20 日
- 笔记
我用goquery+github.com/unidoc/unioffice来尝试一下。
将engineercms里的日志尝试导出来。
设代日志在线查阅：
和导出的word格式对比一下吧：
思路是这样的，先取出内容，用goquery先分出<p里的段落，一方面提取txt，另一方面提取html，后者含有<img里的src图片地址
然后循环段落，每段后面插入img，只能这样笨办法了。完全嵌入图片，就麻烦点了。
type DiaryContent struct { Txt string Html string } func (c *DiaryController) HtmlToDoc() { id := beego.AppConfig.String("wxdiaryprojectid") //"26159" //25002珠三角设代日记id26159 // limit := "10" limit := c.Input().Get("limit") limit1, err := strconv.Atoi(limit) if err != nil { beego.Error(err) } page := c.Input().Get("page") page1, err := strconv.Atoi(page) if err != nil { beego.Error(err) } var idNum int64 //id转成64为 idNum, err = strconv.ParseInt(id, 10, 64) if err != nil { beego.Error(err) } var offset int if page1 <= 1 { offset = 0 } else { offset = (page1 - 1) * limit1 } // diaries, err := models.GetWxDiaries(idNum, limit1, offset) diaries, err := models.GetWxDiaries2(idNum, limit1, offset) if err != nil { beego.Error(err) } doc := document.New() for _, v := range diaries { did := v.Diary.Id // wxsite := beego.AppConfig.String("wxreqeustsite") Diary, err := models.GetDiary(did) if err != nil { beego.Error(err) } para := doc.AddParagraph() run := para.AddRun() para.SetStyle("Title") run.AddText(Diary.Title) para = doc.AddParagraph() para.SetStyle("Heading1") run = para.AddRun() run.AddText(Diary.Diarydate) //将一篇日志分段，通过<p标签 slice1 := make([]DiaryContent, 0) var r io.Reader = strings.NewReader(string(Diary.Content)) goquerydoc, err := goquery.NewDocumentFromReader(r) if err != nil { beego.Error(err) } goquerydoc.Find("p").Each(func(i int, s *goquery.Selection) { sel, _ := s.Html() bb := make([]DiaryContent, 1) bb[0].Html = sel txt := s.Text() bb[0].Txt = txt slice1 = append(slice1, bb...) }) for _, w := range slice1 { //在每段里查找img标签 // beego.Info(w) var r2 io.Reader = strings.NewReader(w.Html) goquerydoc2, err := goquery.NewDocumentFromReader(r2) if err != nil { beego.Error(err) } slice2 := make([]Img, 0) goquerydoc2.Find("img").Each(func(i int, s2 *goquery.Selection) { sel2, _ := s2.Attr("src") // beego.Info(sel2) aa := make([]Img, 1) sel3 := strings.Replace(sel2, "/attachment/", "attachment/", -1) aa[0].Src = sel3 aa[0].Name = path.Base(sel2) slice2 = append(slice2, aa...) }) para = doc.AddParagraph() para.Properties().SetFirstLineIndent(0.354331 * measurement.Inch) run = para.AddRun() run.AddText(w.Txt) if len(slice2) > 0 { for _, x := range slice2 { img1, err := common.ImageFromFile(x.Src) if err != nil { log.Fatalf("unable to create image: %s", err) } img1ref, err := doc.AddImage(img1) if err != nil { log.Fatalf("unable to add image to document: %s", err) } para = doc.AddParagraph() run = para.AddRun() inl, err := run.AddDrawingInline(img1ref) if err != nil { log.Fatalf("unable to add inline image: %s", err) } inl.SetSize(5.5*measurement.Inch, 5.5*measurement.Inch) } } } } newname := strconv.FormatInt(time.Now().UnixNano(), 10) + ".docx" doc.SaveToFile("static/" + newname) c.Data["json"] = map[string]interface{}{"info": "SUCCESS", "filename": newname} c.ServeJSON() }
