下面這是標籤
可以看出來 :http-request="(params) =>beforeMasterPictureUpload(params,‘ruleForm’,fileList0)"
http-request 傳遞參數的方法 是可以這樣寫的，其他方法一樣，但是如果寫錯少些可能會導致覆蓋原來的方法。
<el-upload :class="{hidesse:hideUpload0,'avatar-uploader':true}"
multiple action="這裏不需要填或者隨便寫"
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 同樣 我們拿 http-request 這個方法做例子
beforeMasterPictureUpload(params, fromData, prop) {
console.log('----aaaa', this.fileList);
console.log('file', params, fromData, prop);
}
大家可以輸出看看結果 是否有拿到你上面傳遞過來的字符串或者是值
下面我將 源碼放上
HTML標籤
<el-upload :class="{hidesse:hideUpload0,'avatar-uploader':true}"
multiple action="這裏不需要填或者隨便寫"
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語句
// 主圖上傳之前
beforeAvatarUpload(file) {
console.log('主圖上傳之前:', file)
const idJPG =
file.type === "image/jpeg" || "image/gif" || "image/png" || "image/bmp";
if (!idJPG) {
this.$message.error(
'123123'
);
}
return idJPG;
},
// 圖片觸發
onChangeMaster(file, fileList, fromData, prop) {
// fileList 當前上傳框的數據
switch (prop) {
case 'fileList0':
{ this.hideUpload0 = fileList.length >= this.limitCount; }
break;
case 'fileList1':
{ this.hideUpload1 = fileList.length >= this.limitCount; }
break;
case 'fileList2':
{ this.hideUpload2 = fileList.length >= this.limitCount; }
break;
case 'fileList3':
{ this.hideUpload3 = fileList.length >= this.limitCount; }
break;
case 'fileList4':
{ this.hideUpload4 = fileList.length >= this.limitCount; }
break;
case 'fileList5':
{ this.hideUpload6 = fileList.length >= this.limitCount; }
break;
default:
break;
}
console.log('判斷一次', file, fileList, this.fileList0)
if (this.inde > 0) {
return
} else {
//let existFile = fileList.slice(0, fileList.length - 1).find(f => f.name === file.name)
//if (existFile) {
// this.inde++
// console.log(existFile)
// this.$message.error(
// '圖片重複' + existFile.name
// );
// // fileList.pop()
// }
this[prop] = fileList
}
},
// 圖片個數超出限制
OnExceed(file, fileList) {
this.$message.error(
'每個選項最多上傳5張', "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('刪除後的數組', 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);
},
下面是需求案列
