<el-upload
multiple
:action="uploadImgUrl"
list-type="picture-card"
:on-success="handleUploadSuccess"
:before-upload="handleBeforeUpload"
:limit="limit"
:on-error="handleUploadError"
:on-exceed="handleExceed"
ref="imageUpload"
:on-remove="handleDeleteImg"
:show-file-list="true"
:headers="headers"
:file-list="fileList"
:on-preview="handlePictureCardPreview"
:class="{hide: this.fileList.length >= this.limit}"
>
<i class="el-icon-plus"></i>
</el-upload>
<!-- 上传提示 -->
<div class="el-upload__tip" slot="tip" v-if="showTip">
请上传
<template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>
<template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
的文件
</div>
<script>
import { getToken } from "@/utils/auth";
import { isExternal } from "@/utils/validate";
props: {
value: [String, Object, Array],
// 图片数量限制
limit: {
type: Number,
default: 5,
},
// 大小限制(MB)
fileSize: {
type: Number,
default: 5,
},
// 文件类型, 例如['png', 'jpg', 'jpeg']
fileType: {
type: Array,
default: () => ["png", "jpg", "jpeg"],
},
// 是否显示提示
isShowTip: {
type: Boolean,
default: true
},
src: {
type: String,
default: ""
},
width: {
type: [Number, String],
default: ""
},
height: {
type: [Number, String],
default: ""
}
},
data() {
return {
// 上传参数
upload: {
// 是否禁用上传
isUploading: false,
// 设置上传的请求头部
headers: { Authorization: "Bearer " + getToken() },
// 上传的地址
url: process.env.VUE_APP_BASE_API + "/common/upload",
// 上传的文件列表
fileList: []
},
number: 0,
uploadList: [],
dialogImageUrl: "",
dialogVisible: false,
hideUpload: false,
baseUrl: process.env.VUE_APP_BASE_API,
uploadImgUrl: process.env.VUE_APP_BASE_API + "/common/uploadMinio", // 上传的图片服务器地址
headers: {
Authorization: "Bearer " + getToken(),
},
fileList: []
};
},
/** 新增按钮操作 */
handleAdd() {
this.reset();
this.open = true;
this.title = "添加奖助学金信息";
this.upload.fileList = [];
},
/** 修改按钮操作 */
handleUpdate(row) {
this.reset();
const id = row.id || this.ids
getBursary(id).then(response => {
this.form = response.data;
this.open = true;
this.title = "修改奖助学金信息";
});
this.upload.fileList = [{ name: this.form.fileName, url: this.form.filePath }];
},
// 文件提交处理
submitUpload() {
this.$refs.upload.submit();
},
// 文件上传中处理
handleFileUploadProgress(event, file, fileList) {
this.upload.isUploading = true;
},
// 文件上传成功处理
handleFileSuccess(response, file, fileList) {
this.upload.isUploading = false;
this.form.filePath = response.url;
this.msgSuccess(response.msg);
},
/** 删除上传图片方法 */
handleDeleteImg(file) {
const findex = this.fileList.map(f => f.name).indexOf(file.name);
if(findex > -1) {
this.fileList.splice(findex, 1);
this.$emit("input", this.listToString(this.fileList));
}
},
// 文件下载处理
handleDownload(row) {
var name = row.fileName;
var url = row.filePath;
var suffix = url.substring(url.lastIndexOf("."), url.length);
const a = document.createElement('a')
a.setAttribute('download', name + suffix)
a.setAttribute('target', '_blank')
a.setAttribute('href', url)
a.click()
},
// 上传前loading加载
handleBeforeUpload(file) {
let isImg = false;
if (this.fileType.length) {
let fileExtension = "";
if (file.name.lastIndexOf(".") > -1) {
fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
}
isImg = this.fileType.some(type => {
if (file.type.indexOf(type) > -1) return true;
if (fileExtension && fileExtension.indexOf(type) > -1) return true;
return false;
});
} else {
isImg = file.type.indexOf("image") > -1;
}
if (!isImg) {
this.$modal.msgError(`文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`);
return false;
}
if (this.fileSize) {
const isLt = file.size / 1024 / 1024 < this.fileSize;
if (!isLt) {
this.$modal.msgError(`上传头像图片大小不能超过 ${this.fileSize} MB!`);
return false;
}
}
this.$modal.loading("正在上传图片，请稍候...");
this.number++;
},
// 文件个数超出
handleExceed() {
this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
},
// 上传成功回调
handleUploadSuccess(res, file) {
if (res.code === 200) {
this.uploadList.push({ name: res.fileName, url: res.fileName });
this.uploadedSuccessfully();
} else {
this.number--;
this.$modal.closeLoading();
this.$modal.msgError(res.msg);
this.$refs.imageUpload.handleRemove(file);
this.uploadedSuccessfully();
}
},
// 上传失败
handleUploadError() {
this.$modal.msgError("上传图片失败，请重试");
this.$modal.closeLoading();
},
// 上传结束处理
uploadedSuccessfully() {
if (this.number > 0 && this.uploadList.length === this.number) {
this.fileList = this.fileList.concat(this.uploadList);
this.uploadList = [];
this.number = 0;
this.$emit("input", this.listToString(this.fileList));
this.$modal.closeLoading();
}
},
// 预览
handlePictureCardPreview(file) {
this.dialogImageUrl = file.url;
this.dialogVisible = true;
},
// 对象转成指定字符串分隔
listToString(list, separator) {
let strs = "";
separator = separator || ",";
for (let i in list) {
if (list[i].url) {
strs += list[i].url.replace(this.baseUrl, "") + separator;
}
}
return strs != '' ? strs.substr(0, strs.length - 1) : '';
}
},
watch: {
value: {
handler(val) {
if (val) {
// 首先将值转为数组
const list = Array.isArray(val) ? val : this.value.split(',');
// 然后将数组转为对象数组
this.fileList = list.map(item => {
if (typeof item === "string") {
if (item.indexOf(this.baseUrl) === -1) {
item = { name: this.baseUrl + item, url: this.baseUrl + item };
} else {
item = { name: item, url: item };
}
}
return item;
});
} else {
this.fileList = [];
return [];
}
},
deep: true,
immediate: true
}
},
computed: {
// 是否显示提示
showTip() {
return this.isShowTip && (this.fileType || this.fileSize);
},
realSrc() {
if (!this.src) {
return;
}
let real_src = this.src.split(",")[0];
if (isExternal(real_src)) {
return real_src;
}
return process.env.VUE_APP_BASE_API + real_src;
},
realSrcList() {
if (!this.src) {
return;
}
let real_src_list = this.src.split(",");
let srcList = [];
real_src_list.forEach(item => {
if (isExternal(item)) {
return srcList.push(item);
}
return srcList.push(process.env.VUE_APP_BASE_API + item);
});
return srcList;
},
realWidth() {
return typeof this.width == "string" ? this.width : `${this.width}px`;
},
realHeight() {
return typeof this.height == "string" ? this.height : `${this.height}px`;
}
}