Vue页面内怎么将图片上传并适用折叠面板

发布时间：2021-12-27 12:38:54 阅读：181 作者：iii 栏目：开发技术

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本篇内容介绍了“Vue页面内怎么将图片上传并适用折叠面板”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

一、Vue页面内附件展示区域代码

<div class="retuinfo">
          <div class="theadInfo-headline">
            <span></span>
            {{FileDivName}}
          </div>
          <Collapse v-model="defaultCollapse">
            <Panel v-for="(item,pngIndex) in pngFileArray" v-bind:key="pngIndex" :name="item.num" v-show="item.isshow">
              {{item.name}}
              <div class="obsfilesdiv" slot="content">
                <div v-for="(obs,index) in item.files" v-bind:key="index" class="obsfileslist">
                  <input ref="fileImg" type="file" accept="image/*;capture=camera" 
                    @change="setObsFile(item.num,1,obs.FileType,obs.Num,obs.Code)">
                  <label >{{obs.FileType}}<span 
                      v-show="obs.FileType!='其他'">*</span></label>
                  <ul class="obsfilesul">
                    <li v-for="(objitem,objindex) in obs.FileObj" v-bind:key="objindex">
                      <img :src="objitem.imgurl ? objitem.imgurl : fileUrl"
                        @click="showObsFiles(obs.FileFlag,objitem.imgurl)" />
                      <img src="../../../img/other/wrong.png" v-show="objitem.IsCanEdit" class="wrong_class"
                        @click="deleteObsFlie(item.num,index,objindex,objitem.imgid,objitem.imgurl)" />
                    </li>
                    <li  @click="PlusClick(obs.FileType,obs.FileFlag,obs.Num)">
                      <img src="../../../img/icon-adds.png" alt="" />
                    </li>
                    <div ></div>
                  </ul>
                </div>
              </div>
            </Panel>
          </Collapse>
        </div>
        <div class="modal" v-show="viewBigImg">
            <div class="img-view-modal" >
                <img :src="viewImgURL"  @click="hideShow(0)">
                <Icon type="md-close"  size='20' @click="hideShow(0)" />
            </div>
        </div>
      </div>

Vue项目引入了以下UI框架：（若想拿来即用需要先在main.js中引入）IView、MintUI、Vant 此段代码只要确保引入IView即可正常使用

二、数据绑定设计

具体的不详细展开说，数组与通过属性控制，很好理解。

pngFileArray: [{
            num: '0',
            name: '整车',
            isshow: localStorage.getItem("RoleName").indexOf('铭牌质检员') != -1 ? true : false,
            files: [ //FileFlag://1:图片；2：视频  3.其他
              {
                FileType: '整车铭牌图片',
                Code: '201',
                Num: 0,
                FileFlag: 1,
                FileObj: [],
                IsNoFile: true
              },
              {
                FileType: '车架VIN图片',
                Code: '207',
                Num: 1,
                FileFlag: 1,
                FileObj: [],
                IsNoFile: true
              },
              {
                FileType: '终端图片',
                Code: '301',
                Num: 2,
                FileFlag: 1,
                FileObj: [],
                IsNoFile: true
              }
            ]
          },
          {
            num: '1',
            name: '里程',
            isshow: localStorage.getItem("RoleName").indexOf('客户经理') != -1 ? true : false,
            files: [{
                FileType: '里程表照片',
                Code: '701',
                Num: 3,
                FileFlag: 1,
                FileObj: [],
                IsNoFile: true
              }
            ]
          }
        ],

三、绑定的方法

1.图片加载方法：

//获取图片列表
      getImageList() {
        this.$indicator.open({
          text: '图片加载中...',
          spinnerType: 'snake'
        });
        let _this = this;
        let downRequest ={
            'crm_vin': this.parms.crm_vin,
            'crm_vehiclenumber': this.parms.crm_vehiclenumber
          };
        let imgListParams = {
          "ImageDownRequest": JSON.stringify(downRequest),
          "username": localStorage.getItem("usernameone"),
          "password": localStorage.getItem("password")
        };
        console.log("获取图片列表参数:", imgListParams);
        _this.$ajax.defaults.headers['Content-Type'] = 'application/x-www-form-urlencoded;'; //配置请求头
        this.$ajax.post(this.imageListUrl, this.$qs.stringify(imgListParams)).then(resdata => {
          _this.$indicator.close();
          console.log("获取到的图片列表数据：", resdata);
          let data = resdata.data;
          console.log("转换后的图片列表数据：", data);
          if (resdata.status != 200) {
            _this.$toast({
              message: '获取图片列表失败！',
              duration: 3000
            });
            return;
          }
          //先清空原有的图片列表
          _this.pngFileArray.forEach((rr,index,array) =>{
            for(var file=0;file<rr.files.length;file++){
              _this.pngFileArray[index].files[file].FileObj = [];
              _this.pngFileArray[index].files[file].IsNoFile = true;
            }
          });
          //将图片列表写入页面各图片分类区域
          for(var i=0;i<data.length;i++){
            _this.pngFileArray.forEach((rr,index,array) =>{
              for(var file=0;file<rr.files.length;file++){
                if(data[i].crm_imagetypeno==rr.files[file].Code){
                  let putparm = {
                    "IsCanEdit":false,
                    "imgid": data[i].crm_careimageId,
                    "imgurl": data[i].ImageUrl
                  };
                  _this.pngFileArray[index].files[file].FileObj.push(putparm);
                  _this.pngFileArray[index].files[file].IsNoFile = false;
                }
              }
            });

          }
        }).catch(function(error) {
          _this.$indicator.close();
          _this.$toast({
            message: error,
            duration: 3000
          });
        });
      },

2.图片展示方法

showObsFiles(type, url) { //展示图片或视频
        console.log("展示附件：" + type);
        if (type == 1) { //图片
          this.viewBigImg = true;
          this.viewImgURL = url;
        } else { //文件
          this.$messagebox.alert("不支持查看文件，请到PC端操作！", "提示");
          return;
        }
      },

3.上传图片相关方法

（最开始设计的是支持图片、视频和其他类型文件等上传，项目中已实现，本文中不做拓展)

PlusClick(type, flag, num) {
        console.log("当前附件类型：" + type);
        console.log("当前附件序号：" + num);
        this.currentFileType = type;
        if (flag == 1) { // 图片上传
          this.$refs.fileImg[num].dispatchEvent(new MouseEvent('click'));
        } else if (flag == 2) { // 视频上传
          this.$refs.fileVideo[num].dispatchEvent(new MouseEvent('click'));
        } else { // 其他类型文件
          this.$refs.filElem[num].dispatchEvent(new MouseEvent('click'));
        }
      },
setObsFile(classify, type, obsFileType, num, code) { //保存图片到crm中
        var _this = this;
        var inputFile; //文件流
        console.log("图片大分类：" + classify + " " + obsFileType + " " + num) + " 图片编码：" + code;
        if (type == 1) {
          inputFile = this.$refs.fileImg[num].files[0];
          this.$refs.fileImg[num].value = '';
        }
        var fileName = inputFile.name;
        if (!inputFile) {
          return;
        }
        if (inputFile.type == 'image/jpg' || inputFile.type == 'image/jpeg' || inputFile.type == 'image/png' ||
          inputFile.type ==
          'image/gif') {} else {
          this.$messagebox.alert("请上传图片", "提示");
          return;
        }
        _this.$indicator.open({
          text: '文件上传中，请稍候...',
          spinnerType: 'snake'
        });
        //图片压缩与转换成base64文件流
        var reader = new FileReader();
        reader.readAsDataURL(inputFile);
        reader.onloadend = function(e) {
          let result = this.result;
          console.log('********未压缩前的图片大小******** :' + result.length / 1024)
          _this.pulic.dealImage(result, {}, function(base64) {
            console.log('********压缩后的图片大小******** :' + base64.length / 1024)
            _this.putObsFile(classify, fileName, base64, obsFileType, code);
          });
          //reader.result.substring(this.result.indexOf(',')+1);
          // 'data:image/png;base64,'+reader.result
        }
      },
      putObsFile(classify, fileName, base64, obsFileType, code) { //抽出公共上传图片文件方法
        var _this = this;
        let usernameone = this.$Base64.encode("administrator");
        let password = this.$Base64.encode("pass@word1");
        let parmsImages = {
          crm_newenergyid: localStorage.getItem("crm_newenergyid"),
          vin: _this.parms.crm_vin,
          crm_vehiclenumber: _this.parms.crm_vehiclenumber,
          CareType: code,
          CreateBy: localStorage.getItem("SystemUserId"),
          ImageStr: base64.split(",")[1],
          username: usernameone,
          password: password
        }
        let parms = {
          ImageMessage: JSON.stringify(parmsImages)
        }
        console.log(JSON.stringify(parmsImages));
        console.log(JSON.stringify(parms));
        _this.$ajax.defaults.headers['Content-Type'] = 'application/x-www-form-urlencoded;'; //配置请求头
        _this.$ajax.post(_this.imageSaveUrl, _this.$qs.stringify(parms))
          .then(resdata => {
            _this.$indicator.close();
            console.log("接口响应数据：", resdata);
            let data = resdata.data;
            console.log("转换后的响应数据：", data);
            if (resdata.status != 200) {
              _this.$toast({
                message: '保存失败！接口调用异常',
                duration: 3000
              });
              return;
            }
            //将上传成功后的图片url回写到页面的图片分类url中
            console.log("当前分类下的所有图片类型：" + JSON.stringify(_this.pngFileArray[parseInt(classify)].files));
            for (var i = 0; i < _this.pngFileArray[parseInt(classify)].files.length; i++) { //遍历当前分类下的图片类型数组  并赋值后台返回的数据
              if (obsFileType == _this.pngFileArray[parseInt(classify)].files[i].FileType) {
                //设置图片文件路径等 putparm
                let putparm = {
                  "IsCanEdit":true,
                  "imgid": data.crm_careimageId,
                  "imgurl": data.ImageUrl
                };
                _this.pngFileArray[parseInt(classify)].files[i].FileObj.push(putparm);
                _this.pngFileArray[parseInt(classify)].files[i].IsNoFile = false;
              }
            }
            _this.$messagebox.alert("附件上传成功", "提示");
          }).catch(err => {
            console.log(JSON.stringify(err));
            _this.$toast({
              message: '上传失败',
              duration: 1500
            });
            _this.$indicator.close();
          });
      },

4.删除图片方法

(本文中是只有未提交的图片可删除，若已提交过的图片即页面初始加载获取到的图片不可以删除)

deleteObsFlie(classify,num,index,id,url) { //删除附件
        var _this = this;
        this.$messagebox.confirm('确定删除该图片吗？', "确认").then(action => {
          var del_param = {
            "id": id,
            "url": url
          };
          _this.$indicator.open({
            text: '删除图片中，请稍候...',
            spinnerType: 'snake'
          });
          _this.$ajax.defaults.headers['Content-Type'] = 'application/x-www-form-urlencoded;'; //配置请求头
          _this.PromiseCall(_this.DelImgFilesURL, _this.$qs.stringify(del_param))
            .then(data => {
              _this.$indicator.close();
              console.log(JSON.stringify(data));
              if (data.status != 200) {
               _this.$messagebox.alert("删除图片失败", "提示");
               return;
              }
              _this.pngFileArray[parseInt(classify)].files[num].FileObj.splice(index, 1);
              _this.$toast({
                message: '删除图片成功',
                duration: 1500
              });
            }).catch(err => {
              _this.doCatch(err);
              _this.$toast({
                message: '删除图片失败'+err,
                duration: 1500
              });
              _this.$indicator.close();
            });
        });
      },

四、CSS样式

.retuinfo {
    width: 96%;
    height: auto;
    margin-top: 20px;
    margin-left: 2%;
    background-color: #F5F7FA;
    border-radius: 15px;
  }
.theadInfo-headline {
    width: 100%;
    height: 80px;
    background: #F3F3F3;
    display: flex;
    padding-left: 30px;
    align-items: center;
    font-size: 28px;
    color: #666666;
    border-radius: 15px;
  }
  .theadInfo-headline span {
    width: 6px;
    height: 32px;
    background: #5576AB;
    border-radius: 3px;
    margin-right: 10px;
  }
.ivu-collapse-header {
    height: 40px;
    align-items: center;
    display: flex;
  }
.obsfilesdiv {
    width: 100%;
    height: auto;
    margin-top: .5rem;
    margin-bottom: 50px;
}
.obsfileslist {
    width: 100%;
    height: auto;
    padding: 0.5rem 0.5rem;
    background: #fff;
}
.obsfilesul {
    width: 100%;
    height: auto;
    padding-bottom: 8px;
}
.obsfilesul li {
    width: 120px;
    height: 120px;
    float: left;
    margin-top: .3rem;
    overflow: hidden;
    margin-right: .3rem;
    border: none;
}
.obsfilesul li img {
    width: 100%;
    height: 100%;
}
.imglist {
    width: 100%;
    margin-top: .5rem;
    margin-bottom: 6rem;
}
.modal {
    background-color: #A9A9A9;
    position: fixed;
    z-index: 99;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    padding-top: 4rem;
    /*opacity: 0.5;*/
    align-items: center;
    /*定义body的元素垂直居中*/
    justify-content: center;
    /*定义body的里的元素水平居中*/
}
.modal img {
    animation-name: zoom;
    animation-duration: 0.6s;
    display: block;
    padding: 10px;
    margin: auto;
    max-width: 100%;
    max-height: 100%;
    box-shadow: 0 2px 6px rgb(0, 0, 0, 0), 0 10px 20px rgb(0, 0, 0, 0);
    border-radius: 12px;
    border: 1px solid white;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}
.showname {
    width: 100px;
    height: 60px;
    position: relative;
    top: -4.5rem;
    white-space: normal;
    word-break: break-all;
    word-wrap: break-word;
}
.wrong_class {
    width: 30% !important;
    height: 30% !important;
    position: relative;
    top: -3.8rem;
    left: 2.6rem;
}
.wrongs_class {
    width: 4% !important;
    height: 4% !important;
    position: relative;
    /*top: -5.2em;*/
    left: 0.5rem;
}