Vue如何实现微信小程序的图文编辑器

这篇文章主要介绍了Vue如何实现微信小程序的图文编辑器，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

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为什么要使用Vue

Vue是一款友好的、多用途且高性能的JavaScript框架，使用vue可以创建可维护性和可测试性更强的代码库，Vue允许可以将一个网页分割成可复用的组件，每个组件都包含属于自己的HTML、CSS、JavaScript，以用来渲染网页中相应的地方，所以越来越多的前端开发者使用vue。

由于微信小程序不能使用常规的图文编辑器(比如百度的UEditor )编辑新闻内容之类的，所以用vue写了个针对小程序用的图文编辑器。效果如下

Vue如何实现微信小程序的图文编辑器

多图上传图片用到了 ajaxfileupload.js （不知道哪位仁兄写的，拿来用了，很好用）

最终形成一串Json数据（转成字符串，传入后台存入数据库，小程序端用JSON.parse 转成JSON ，按照后台一样的方式渲染即可【小程序端代码还没写，后面再贴出来吧】）

json格式如

[{"mytype":1,"content":"测试数据\n\n11111\n\n","font":{"size":0,"weight":1,"del":1,"line":0,"center":1,"color":"#ED1C24","bgcolor":"#fff","showcolor":0}},{"mytype":3,"content":""},{"mytype":2,"content":"/upload/dyProductImgs/20180725/9841925131090216.jpg_E500_100.jpg","loading":1,"groupid":"627459ec-d372-e372-218e-b93b83cb2d02"},{"mytype":2,"content":"/upload/dyProductImgs/20180725/1574162212592205.jpg_E500_100.jpg","loading":1,"groupid":"627459ec-d372-e372-218e-b93b83cb2d02"},{"mytype":2,"content":"/upload/dyProductImgs/20180725/8745023656415428.jpg_E500_100.jpg","loading":1,"groupid":"627459ec-d372-e372-218e-b93b83cb2d02"},{"mytype":2,"content":"/upload/dyProductImgs/20180725/7027501123579481.jpg_E500_100.jpg","loading":1,"groupid":"627459ec-d372-e372-218e-b93b83cb2d02"}]

html代码

var pageData = { editorData: [], colors: [ "#000", "#7F7F7F", "#880015", "#ED1C24", "#FF7F27", "#FFF200", "#22B14C", "#3F48CC", "#E36C09", "#31859B", "#5F497A", "#76923C", "#953734", "#366092", "#938953", "#fff" ], reload:true }; //初始化vue var vmMenu = new Vue({ el: '.vue-container', data: pageData, methods: { //生成一个fileid buildfileid: function (index) { return "file" + index; }, initstyle: function (font) { var stylestr = ""; var fontsize = 18; fontsize += font.size * 3; stylestr += "font-size: " + fontsize + "px;" if (font.weight == 1) stylestr += "font-weight: bold;" if (font.del == 1) stylestr += "text-decoration:line-through;" if (font.line == 1) stylestr += "text-decoration:underline;" if (font.center == 1) stylestr += "text-align: center;" if (font.color) stylestr += ("color:" + font.color + ";"); if (font.bgcolor) stylestr += ("display: inline;background-color:" + font.bgcolor + ";"); return stylestr; }, //字体的颜色 initfontcolor: function (font) { var result = ""; result += "color:"; result += font.color; result += ";"; result += "background-color:"; result += font.bgcolor; result += ";"; return result; }, //字体背景的颜色 initbgcolor: function (color) { return "background-color:" + color; }, //加粗或者取消嘉措 fontweight: function (index) { pageData.editorData[index].font.weight = (pageData.editorData[index].font.weight == 1 ? 0 : 1); }, //字体加大 fontda: function (index) { pageData.editorData[index].font.size++; }, //字体减小 fontxiao: function (index) { pageData.editorData[index].font.size--; }, //删除线 fontdel: function (index) { pageData.editorData[index].font.del = (pageData.editorData[index].font.del == 1 ? 0 : 1); }, //下划线 fontline: function (index) { pageData.editorData[index].font.line = (pageData.editorData[index].font.line == 1 ? 0 : 1); }, //居中显示 fontcenter: function (index) { pageData.editorData[index].font.center = (pageData.editorData[index].font.center == 1 ? 0 : 1); }, fontshowcolor: function (index) { pageData.editorData[index].font.showcolor = (pageData.editorData[index].font.showcolor == 1 ? 0 : 1); }, //选择字体颜色 fontsetcolor: function (index, color) { pageData.editorData[index].font.color = color; this.hidecolorbox(index); }, //隐藏颜色选择框 hidecolorbox: function (index) { if (pageData.editorData && pageData.editorData.length > index && pageData.editorData[index].mytype == 1) pageData.editorData[index].font.showcolor = 0; }, //上传图片 uploadfile: function (index) { //用于强制重新渲染 input.file 用于清空之前的文件 ^_^ pageData.reload = false; //添加一个组ID，方便后面上传完成后识别应该更新哪条数据 var groupid = guid(); var that = this; var fileid = "file" + index; var files = $("#" + fileid)[0].files; for (var i = 0; i < files.length; i++) { that.itemadd(index + i, 2, groupid); } jQuery.ajaxFileUpload({ url: '@Url.Content("~/img/uploadproductdpicArray?path=dyProductImgs")', //用于文件上传的服务器端请求地址 secureuri: false, //是否需要安全协议，一般设置为false fileElementId: fileid, //文件上传域的ID dataType: 'json', //返回值类型一般设置为json success: function (data) //服务器成功响应处理函数 { //var result = JSON.parse(data); pageData.reload = true; var result = data; console.log(result); if (result.resultState == "1") { var j = 0; for (var i = 0; i < pageData.editorData.length; i++) { if (pageData.editorData[i].groupid && pageData.editorData[i].groupid == groupid) { pageData.editorData[i].content = "@Url.Content("~")" + result.Data[j].substring(1); pageData.editorData[i].loading = 1; j++; } } console.log(result); } else alert("上传失败！"); }, error: function (data)//服务器响应失败处理函数 { alert("上传失败！"); } }); }, //上升模块 itemup: function (index) { if (index > 0) { var itemData = pageData.editorData[index]; pageData.editorData.splice(index, 1); pageData.editorData.splice(index - 1, 0, itemData); } }, //下降模块 itembottom: function (index) { if (index + 1 < pageData.editorData.length) { var itemData = pageData.editorData[index]; pageData.editorData.splice(index, 1); pageData.editorData.splice(index + 1, 0, itemData); } }, //删除模块 itemdel: function (index) { pageData.editorData.splice(index, 1); }, //添加一个新的模块 itemadd: function (index, type, groupid) { var itemData = null; switch (type) { case 1: itemData = { mytype: 1, content: "", font: { size: 0, //字体大小每+1 字体+2px -1同减 weight: 0, //是否加粗 del: 0, //是否删除线 line: 0, //是否下划线 center: 0, //是否居中 color: "#000", //字体颜色 bgcolor: "#fff", //字体颜色 showcolor: 0 //是否显示颜色选择框 } }; break; case 2: itemData = { mytype: 2, content: "res/img/1.jpg", loading: 0 //是否已经成功上传 }; break; case 3: itemData = { mytype: 3, content: "" }; break; default: alert('暂不支持'); break; } if (itemData) { if (groupid) itemData.groupid = groupid; pageData.editorData.splice(index, 0, itemData); } }, //一个用于阻止冒泡的事件 stopclick: function () { }, }, //实例被调用后 created: function () { }, //el 被新创建的 vm.$el 替换，并挂载到实例上去之后调用该钩子。 updated: function () { this.$nextTick(function () { ////console.log(pageData); //var files = this.$refs.feedbakcImg; //for (var i = 0; i < files.length; i++) { // files[i].clearFiles(); //} }) } });

///

/// 批量上传商品详情图片 ///

/// [HttpPost] public ContentResult uploadproductdpicArray(string path) { rData> result = new rData>(); result = UpLoadPicArray(path); if (result.resultState == 1) for (int i = 0; i < result.Data.Count; i++) { if (ST.Tool.ImageHelp.GetImageSuffix(result.Data[i]) != ".gif") { string imgPath = Server.MapPath($"~{result.Data[i]}"); string imgPathNoSuffix = imgPath.Substring(0, imgPath.LastIndexOf(".")); string imgSuffix = ST.Tool.ImageHelp.GetImageSuffix(imgPath); Image oldimg = Image.FromFile(imgPath); //读取图片 //压缩宽度为500的图片，等比清晰度 100 ST.Tool.ImageHelp.PicThumbnail(oldimg, imgPath + "_E500_100" + imgSuffix, 500, 0, 100); oldimg.Dispose(); result.Data[i] = result.Data[i] + "_E500_100" + imgSuffix; } } var jsonResult = JsonConvert.SerializeObject(result); return new ContentResult() { Content = jsonResult }; } ///

/// 上传图片 ///

/// 保存图片的文件夹名称 /// 保存结果 private rData UpLoadPic(string _path="public") { rData result = new rData(); HttpFileCollectionBase _file = Request.Files; if (_file.Count > 0) { long size = _file[0].ContentLength; string type = _file[0].ContentType; string name = _file[0].FileName; //文件格式 string _tp = Path.GetExtension(name); if (_tp.ToLower() == ".jpg" || _tp.ToLower() == ".jpeg" || _tp.ToLower() == ".gif" || _tp.ToLower() == ".png" || _tp.ToLower() == ".swf") { Stream stream = _file[0].InputStream; Image image = Image.FromStream(stream); string dateDir = DateTime.Now.ToString("yyyyMMdd"); string saveName = ST.Tool.ExpandString.GetNonceNumberT(16) + _tp; string filePath = $"{BaseConfig.headpath}{_path}/{dateDir}/"; string path = Server.MapPath(filePath); if (!Directory.Exists(path)) Directory.CreateDirectory(path); //_file[0].SaveAs(Server.MapPath($"{filePath}{saveName}")); //初始化图片对象 //Image image = new Bitmap(Server.MapPath($"{filePath}{saveName}")); foreach (var p in image.PropertyItems) { if (p.Id == 0x112) { var rft = p.Value[0] == 6 ? RotateFlipType.Rotate90FlipNone : p.Value[0] == 3 ? RotateFlipType.Rotate180FlipNone : p.Value[0] == 8 ? RotateFlipType.Rotate270FlipNone : p.Value[0] == 1 ? RotateFlipType.RotateNoneFlipNone : RotateFlipType.RotateNoneFlipNone; p.Value[0] = 0; //旋转属性值设置为不旋转 image.SetPropertyItem(p); //回拷进图片流 image.RotateFlip(rft); } } //重新保存为正常的图片 image.Save(Server.MapPath($"{filePath}{saveName}")); result.Data = $"{filePath}{saveName}"; } else result.errorMsg = "只能上传图片。"; } else result.errorMsg = "未选择文件"; return result; } ///

/// 上传多张图片 ///

/// /// private rData> UpLoadPicArray(string _path = "public") { rData> result = new rData>(); result.Data = new List(); HttpFileCollectionBase _file = Request.Files; if (_file.Count > 0) for (int i = 0; i < _file.Count; i++) { //Thread.Sleep(500); long size = _file[i].ContentLength; string type = _file[i].ContentType; string name = _file[i].FileName; //文件格式 string _tp = Path.GetExtension(name); if (_tp.ToLower() == ".jpg" || _tp.ToLower() == ".jpeg" || _tp.ToLower() == ".gif" || _tp.ToLower() == ".png" || _tp.ToLower() == ".swf") { Stream stream = _file[i].InputStream; Image image = Image.FromStream(stream); string dateDir = DateTime.Now.ToString("yyyyMMdd"); string saveName = ST.Tool.ExpandString.GetNonceNumberT(16) + _tp; string filePath = $"{BaseConfig.headpath}{_path}/{dateDir}/"; string path = Server.MapPath(filePath); if (!Directory.Exists(path)) Directory.CreateDirectory(path); //_file[0].SaveAs(Server.MapPath($"{filePath}{saveName}")); //初始化图片对象 //Image image = new Bitmap(Server.MapPath($"{filePath}{saveName}")); foreach (var p in image.PropertyItems) { if (p.Id == 0x112) { var rft = p.Value[0] == 6 ? RotateFlipType.Rotate90FlipNone : p.Value[0] == 3 ? RotateFlipType.Rotate180FlipNone : p.Value[0] == 8 ? RotateFlipType.Rotate270FlipNone : p.Value[0] == 1 ? RotateFlipType.RotateNoneFlipNone : RotateFlipType.RotateNoneFlipNone; p.Value[0] = 0; //旋转属性值设置为不旋转 image.SetPropertyItem(p); //回拷进图片流 image.RotateFlip(rft); } } //重新保存为正常的图片 image.Save(Server.MapPath($"{filePath}{saveName}")); result.Data.Add($"{filePath}{saveName}"); //result.Data = $"{filePath}{saveName}"; } else result.errorMsg = "只能上传图片。"; } else result.errorMsg = "未选择文件"; return result; }

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Vue如何实现微信小程序的图文编辑器

为什么要使用Vue

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