基于Vue实现微信小程序的图文编辑器

网络编程 2024/11/13 佚名

3 2 1

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

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

<div class="editor-box vue-container">
 <div class="vuefor" v-for="i in editorData.length+1" v-on:click="hidecolorbox(i-1)">
  <div class="tool-box">
   <div class="tool-box-sub">
    <div class="tool-list">
     <div v-if="reload">
      <input type="file" v-on:change.stop="uploadfile(i-1)" v-bind:id="buildfileid(i-1)" v-bind:name="buildfileid(i-1)" multiple="multiple">
     </div>
     <label class="tool-item" v-on:click.stop="itemadd(i-1,1)">
      <div class="icon"><img src="/UploadFiles/2021-04-02/icon-font.png">

js 代码
需要引用 jquery、vue、ajaxfileupload


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 "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")', //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();
    //}
   })
  }
 });


后台代码 .net （有些方法没有放出来，后面我有时间整理一个单独的demo出来放到云盘）


 /// <summary>
  /// 批量上传商品详情图片
  /// </summary>
  /// <returns></returns>
  [HttpPost]
  public ContentResult uploadproductdpicArray(string path)
  {
   rData<List<string result = new rData<List<string();
   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 };
  }
 /// <summary>
  /// 上传图片
  /// </summary>
  /// <param name="_path">保存图片的文件夹名称</param>
  /// <returns>保存结果</returns>
  private rData<string> UpLoadPic(string _path="public")
  {
   rData<string> result = new rData<string>();
   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 "{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;
  }
  /// <summary>
  /// 上传多张图片
  /// </summary>
  /// <param name="_path"></param>
  /// <returns></returns>
  private rData<List<string UpLoadPicArray(string _path = "public")
  {
   rData<List<string result = new rData<List<string();
   result.Data = new List<string>();
   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($"{filePath}{saveName}"));
      foreach (var p in image.PropertyItems)
      {
       if (p.Id == 0x112)
       {
        var rft = p.Value[0] == 6 "{filePath}{saveName}"));
      result.Data.Add($"{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;
  }


总结
以上所述是小编给大家介绍的基于Vue实现微信小程序的图文编辑器，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！

微信小程序图文编辑器