vue+element upload上传带参数的方法

蜗牛 互联网技术资讯 2022-04-25 40 0

今天小编给大家分享一下vue+element upload上传带参数的方法的相关知识点,内容详细,逻辑清晰,相信大部分人都还太了解这方面的知识,所以分享这篇文章给大家参考一下,希望大家阅读完这篇文章后有所收获,下面我们一起来了解一下吧。

element upload上传带参数

<el-button  size="small" type="success" @click="submitUpload">保存</el-button>
   <el-upload
    class="upload-demo"
    ref="upload"
    :action="action()"
    :on-preview="handlePreview"
    :before-upload="beforeUpload"  
    :data="uploadData"    
    :on-error = "error"
    :on-success="successResave"
    :on-remove="handleRemove"
    :file-list="fileList"
    :auto-upload="false">
    <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
    <!-- <el-button  size="small" type="success" @click="submitUpload">上传到服务器</el-button> -->
    <!-- <div slot="tip" class="el-upload__tip">只能上传jpg/png文件,且不超过500kb</div> -->
    </el-upload>

data里面参数

uploadData:null,

methods里面

action(){
       return this.portC+"uplodResultsScore"
     },
     //上传
     submitUpload() {
 
        this.$refs.upload.submit();
      },
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
 
        console.log(file);
      },
      beforeUpload (file) {     
          
         this.uploadData = {dstype:this.proType,name:this.mobanname,dsmark:this.value5,};
             console.log(this.uploadData)
            let promise = new Promise((resolve) => {
                this.$nextTick(function () {
                    resolve(true);
                });
            });
            return promise; //通过返回一个promis对象解决
     },
     //上传成功钩子
     successResave(response, file, fileList){
           console.log(response)
           if(response.code==10001){
              alert("保存成功")  
               this.proType="";
               this.mobanname="";
               this.value5="";
               this.$router.push("/moban")
           }
     },
    //失败钩子
     error(response, file, fileList){
           console.log(response)
     },
     //选择家化实效
      selectType(val){
         console.log(val)
         if(val==1){
             this.$router.push("/new")
         }else{
             this.$router.push("/new1")
         }
      },

效果图

vue+element upload上传带参数的方法  element 第1张

element上传函数带参数,自定义传参

下面这是标签

可以看出来 :

http-request="(params) =>beforeMasterPictureUpload(params,‘ruleForm',fileList0)"

http-request 传递参数的方法 是可以这样写的,其他方法一样,但是如果写错少些可能会导致覆盖原来的方法。

<el-upload :class="{hidesse:hideUpload0,'avatar-uploader':true}" 
                        multiple action="这里不需要填或者随便写"
                        list-type="picture-card" :before-upload="beforeAvatarUpload"
                        :on-preview="(params) =>handlePictureCardPreview(params,'ruleForm',fileList0)"
                        :http-request="(params) =>beforeMasterPictureUpload(params,'ruleForm',fileList0)"
                        :on-change="(params,fileList) =>onChangeMaster(params,fileList,'ruleForm','fileList0')"
                        :on-exceed="OnExceed"
                        :on-remove="(params) =>handleRemove(params,'ruleForm',fileList0,'fileList0')" :limit="5"
                        :file-list="fileList0" @click="titext">
                        <i class="el-icon-plus"></i>
                    </el-upload>

下面是JS 接受方法 同样 我们拿 http-request 这个方法做例子

beforeMasterPictureUpload(params, fromData, prop) {
    console.log('----aaaa', this.fileList);
    console.log('file', params, fromData, prop);
}

大家可以输出看看结果 是否有拿到你上面传递过来的字符串或者是值

我将源码放上

HTML标签

<el-upload :class="{hidesse:hideUpload0,'avatar-uploader':true}" 
                        multiple action="这里不需要填或者随便写"
                        list-type="picture-card" :before-upload="beforeAvatarUpload"
                        :on-preview="(params) =>handlePictureCardPreview(params,'ruleForm',fileList0)"
                        :http-request="(params) =>beforeMasterPictureUpload(params,'ruleForm',fileList0)"
                        :on-change="(params,fileList) =>onChangeMaster(params,fileList,'ruleForm','fileList0')"
                        :on-exceed="OnExceed"
                        :on-remove="(params) =>handleRemove(params,'ruleForm',fileList0,'fileList0')" :limit="5"
                        :file-list="fileList0" @click="titext">
                        <i class="el-icon-plus"></i>
                    </el-upload>

JS语句

// 主图上传之前
                beforeAvatarUpload(file) {
                    console.log('主图上传之前:', file)
                    const idJPG =
                        file.type === "image/jpeg" || "image/gif" || "image/png" || "image/bmp";
                    if (!idJPG) {
                        this.$message.error(
                            '123123'
                        );
                    }
                    return idJPG;
                },
                // 图片触发
                onChangeMaster(file, fileList, fromData, prop) {
                    // fileList 当前上传框的数据 
                    switch (prop) {
                        case 'fileList0':
                            { this.hideUpload0 = fileList.length >= this.limitCount; }
                            break;
                        case 'fileList1':
                            { this.hideUpload1 = fileList.length >= this.limitCount; }
                            break;
                        case 'fileList2':
                            { this.hideUpload2 = fileList.length >= this.limitCount; }
                            break;
                        case 'fileList3':
                            { this.hideUpload3 = fileList.length >= this.limitCount; }
                            break;
                        case 'fileList4':
                            { this.hideUpload4 = fileList.length >= this.limitCount; }
                            break;
                        case 'fileList5':
                            { this.hideUpload6 = fileList.length >= this.limitCount; }
                            break;
                        default:
                            break;
                    }
                    console.log('判断一次', file, fileList, this.fileList0)
                    if (this.inde > 0) {
                        return
                    } else {
                        //let existFile = fileList.slice(0, fileList.length - 1).find(f => f.name === file.name)
                        //if (existFile) {
                           // this.inde++
                          //  console.log(existFile)
                          //  this.$message.error(
                          //      '图片重复' + existFile.name
                        //    );
                        //    // fileList.pop()
                     //   }
                        this[prop] = fileList
                    }
                },
                // 图片个数超出限制
                OnExceed(file, fileList) {
                    this.$message.error(
                        '每个选项最多上传5张', "error"
                    );
                },
                handleRemove(params, fileList, prop, item) {
                    prop.forEach((obj, index) => {
                        console.log(index, obj)
                        if (params.uid == obj.uid) {
                            prop.splice(index, 1)
                        }
                    })
                    console.log('删除后的数组', prop);
                    setTimeout(() => {
                        switch (item) {
                            case 'fileList0':
                                { this.hideUpload0 = prop.length >= this.limitCount; }
                                break;
                            case 'fileList1':
                                { this.hideUpload1 = prop.length >= this.limitCount; }
                                break;
                            case 'fileList2':
                                { this.hideUpload2 = prop.length >= this.limitCount; }
                                break;
                            case 'fileList3':
                                { this.hideUpload3 = prop.length >= this.limitCount; }
                                break;
                            case 'fileList4':
                                { this.hideUpload4 = prop.length >= this.limitCount; }
                                break;
                            case 'fileList5':
                                { this.hideUpload6 = prop.length >= this.limitCount; }
                                break;
                            default:
                                break;
                        }
                        console.log(prop.length >= this.limitCount)
                    }, 1000)
                    // this.fileList = [];
                    this.dialogImageUrl = '';
                },
                handlePictureCardPreview(file, fromData, prop) {
                    console.log(file, fromData, prop)
                    this.dialogImageUrl = file.url;
                    this.dialogVisible = true;
                },
                beforeMasterPictureUpload(params, fromData, prop) {
                    console.log('----aaaa', this.fileList);
                    console.log('file', params, fromData, prop);
                    
                },

这是需求案列

vue+element upload上传带参数的方法  element 第2张

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