iview如何实现图片上传功能

<template>
 <div>
  <div class="navigation">
   <p>
   <span>管理首页&nbsp;>&nbsp;应用&nbsp;>&nbsp;抢单侠>&nbsp;信贷管理>&nbsp;{{title}}</span>
   </p>
  </div>
  <div class="clearfix contentcss sales-statis">
   <Form ref="formValidate" :model="formValidate" :rules="ruleValidate" :label-width="80">
    <FormItem label="模板名称:" prop="templatename">
     <Input v-model="formValidate.templatename" placeholder="请输入模板名称" ></Input>
    </FormItem>
    <FormItem label="模板类别:" prop="templatetype">
     <Select v-model="formValidate.templatetype" placeholder="请选择模板类别" style='width:240px;'>
      <Option v-for="item in templateList" :value="item.templateCode" :key="item.templateCode">{{ item.templateName }}</Option>
     </Select>
    </FormItem>
    
    <FormItem label="开放范围:" prop="openrange">
     <Select v-model="formValidate.openrange" placeholder="请选择开放范围" style='width:240px;'>
      <Option v-for="item in openrangeList" :value="item.openrangeCode" :key="item.openrangeCode">{{ item.openrangeName }}</Option>
     </Select>
    </FormItem>
    <FormItem label="上传图片:" prop="productlogo">
     <Upload
     action=""
     :before-upload="handleUploadicon"
     :show-upload-list="false"
     :format="['jpg','jpeg','png', 'gif']"
     :on-format-error="handleFormatError1">
     <img class="iconlabelUrl" :src="formValidate.labelUrl" alt="">
     <Input v-model="formValidate.productlogo" disabled  class="left ml5 hidden"></Input>
     <!-- <Button type="ghost" icon="ios-cloud-upload-outline">上传文件</Button> -->
     </Upload>
    </FormItem>
    <FormItem>
     <Button type="primary" @click="handleSubmit('formValidate')" style='width:100px'>保存</Button>
     <Button @click="handleReset('formValidate')" >返回</Button>
    </FormItem>
   </Form>
  </div>
 </div>
</template>
<script>
 export default{
  data(){
   return{
    title:'',
    openrangeList:[
     {openrangeCode:'1',openrangeName:'全部用户'},
     {openrangeCode:'2',openrangeName:'会员用户'},
    ],
    templateList:[
     {templateCode:'1',templateName:'海报'},
     {templateCode:'2',templateName:'名片'}
    ],
    formValidate: {
     productlogo:'',
     templatename:'',
     templatetype:'1',
     openrange:'1',
     labelUrl: require("../../image/moren.png")
 
    },
    ruleValidate:{
      templatename:[
      {required: true, message: '请输入模板名称', trigger: 'change'},
     ],
     productlogo:[
      { required: true, message: "请上传图片", trigger: "blur" }
     ]
    }
   }
  },
  methods:{
   handleUploadicon(file) {
    let splic = file.name.split(".");
    if (
     splic[splic.length - 1] == "png" ||
     splic[splic.length - 1] == "jpg" ||
     splic[splic.length - 1] == "gif" ||
     splic[splic.length - 1] == "jpeg"
    ) {
     let formData = new FormData();
     formData.append("file", file);
     let config = {
     headers: {
      "Content-Type": "multipart/form-data"
     }
     };
     this.http
     .post(BASE_URL + "/fileUpload", formData, config)
     .then(resp => {
      if (resp.code == "success") {
      this.formValidate.labelUrl = resp.data;
      this.formValidate.productlogo = resp.data;
      } else {
      }
     })
     .catch(() => {});
     return false;
    }
   },
   handleFormatError1(file) {
   this.$Message.info("图片格式不正确,请上传正确的图片格式");
   },
   handleSubmit (name) {
    this.$refs[name].validate((valid) => {
     if (valid) {
      if(this.title = '添加模板'){
       this.$Modal.confirm({
        title: "温馨提示",
        content: "<p>确认添加该模板？</p>",
        onOk: () => {
         let data = {
          exhibitionName : this.formValidate.templatename,
          exhibitionType : this.formValidate.templatetype,
          openType : this.formValidate.openrange,
          exhibitionPath : this.formValidate.productlogo
         }
         this.http.post(BASE_URL+'后台保存接口',data)
         .then(data=>{
          if(data.code=='success'){
           this.$Message.success('添加成功');
           this.$router.push('/exhibition')
          }else{
           this.$Message.error('添加失败')
          }
         }).catch(err=>{
          console.log(err)
         })
        },
        onCancel: () => {}
       });
      }else{
       this.$Modal.confirm({
        title: "温馨提示",
        content: "<p>确认修改该模板？</p>",
        onOk: () => {
         let data = {
          exhibitionName : this.formValidate.templatename,
          exhibitionType : this.formValidate.templatetype,
          openType : this.formValidate.openrange,
          exhibitionPath : this.formValidate.productlogo
         }
         this.http.posst(BASE_URL+'后台修改接口',data)
         .then(data=>{
          if(data.data=='success'){
           this.$Message.success('修改成功');
           this.$router.push('/exhibition')
          }else{
           this.$Message.error('修改失败')
          }
         }).catch(err=>{
          console.log(err)
         })
        },
        onCancel: () => {}
       });
      }
     } 
    })
   },
   handleReset(name){
    this.$refs[name].resetFields()
    this.$router.push('/exhibition')
   }
  },
  mounted(){
   if(this.$route.query.id){
    this.title = '添加模板'
   }else{
    this.title = '编辑模板'
    let data = {
     exhibitionCode:this.$route.query.exhibitionCode
    }
    this.http.post(BASE_URL+'/loan/exhibition/getByCode',data)
    .then(data=>{
     if(data.code=='success'){
      this.formValidate.templatename=data.data.exhibitionName,
      this.formValidate.templatetype=data.data.exhibitionType,
      this.formValidate.openrange=data.data.openType,
      this.formValidate.labelUrl= data.data.exhibitionPath,
      this.formValidate.productlogo=data.data.exhibitionPath
     }
    })
   }
  }
 }
</script>
<style lang="less" scoped>
 .title{
  height:60px;line-height:60px;background:#fff;
  font-size: 20px;text-indent: 20px;
 }
 .ivu-form .ivu-form-item-label{
  text-align: justify !important
 }
 .iconlabelUrl {
  width: 240px;
  height: 120px;
 }
</style>