修复自定义组件file-upload无法显示第一个文件,列表显示的文件比实际文件少一个的问题

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sam 2022-02-12 08:37:03 +08:00
parent 50236ae4e5
commit c491257359

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@ -1,198 +1,198 @@
<template>
<div class="upload-file">
<el-upload
:action="uploadFileUrl"
:before-upload="handleBeforeUpload"
:file-list="fileList"
:limit="limit"
:on-error="handleUploadError"
:on-exceed="handleExceed"
:on-success="handleUploadSuccess"
:show-file-list="false"
:headers="headers"
class="upload-file-uploader"
ref="upload"
>
<!-- 上传按钮 -->
<el-button size="mini" type="primary">选取文件</el-button>
<!-- 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>
</el-upload>
<!-- 文件列表 -->
<transition-group class="upload-file-list el-upload-list el-upload-list--text" name="el-fade-in-linear" tag="ul">
<li :key="file.uid" class="el-upload-list__item ele-upload-list__item-content" v-for="(file, index) in fileList">
<el-link :href="`${baseUrl}${file.url}`" :underline="false" target="_blank">
<span class="el-icon-document"> {{ getFileName(file.name) }} </span>
</el-link>
<div class="ele-upload-list__item-content-action">
<el-link :underline="false" @click="handleDelete(index)" type="danger">删除</el-link>
</div>
</li>
</transition-group>
</div>
</template>
<script>
import { getToken } from "@/utils/auth";
export default {
name: "FileUpload",
props: {
//
value: [String, Object, Array],
//
limit: {
type: Number,
default: 5,
},
// (MB)
fileSize: {
type: Number,
default: 5,
},
// , ['png', 'jpg', 'jpeg']
fileType: {
type: Array,
default: () => ["doc", "xls", "ppt", "txt", "pdf"],
},
//
isShowTip: {
type: Boolean,
default: true
}
},
data() {
return {
baseUrl: process.env.VUE_APP_BASE_API,
uploadFileUrl: process.env.VUE_APP_BASE_API + "/common/upload", //
headers: {
Authorization: "Bearer " + getToken(),
},
fileList: [],
};
},
watch: {
value: {
handler(val) {
if (val) {
let temp = 1;
//
const list = Array.isArray(val) ? val : this.value.split(',');
//
this.fileList = list.map(item => {
if (typeof item === "string") {
item = { name: item, url: item };
}
item.uid = item.uid || new Date().getTime() + temp++;
return item;
});
} else {
this.fileList = [];
return [];
}
},
deep: true,
immediate: true
}
},
computed: {
//
showTip() {
return this.isShowTip && (this.fileType || this.fileSize);
},
},
methods: {
//
handleBeforeUpload(file) {
//
if (this.fileType) {
let fileExtension = "";
if (file.name.lastIndexOf(".") > -1) {
fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
}
const isTypeOk = this.fileType.some((type) => {
if (file.type.indexOf(type) > -1) return true;
if (fileExtension && fileExtension.indexOf(type) > -1) return true;
return false;
});
if (!isTypeOk) {
this.$message.error(`文件格式不正确, 请上传${this.fileType.join("/")}格式文件!`);
return false;
}
}
//
if (this.fileSize) {
const isLt = file.size / 1024 / 1024 < this.fileSize;
if (!isLt) {
this.$message.error(`上传文件大小不能超过 ${this.fileSize} MB!`);
return false;
}
}
return true;
},
//
handleExceed() {
this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);
},
//
handleUploadError(err) {
this.$message.error("上传失败, 请重试");
},
//
handleUploadSuccess(res, file) {
this.$message.success("上传成功");
this.fileList.push({ name: res.fileName, url: res.fileName });
this.$emit("input", this.listToString(this.fileList));
},
//
handleDelete(index) {
this.fileList.splice(index, 1);
this.$emit("input", this.listToString(this.fileList));
},
//
getFileName(name) {
if (name.lastIndexOf("/") > -1) {
return name.slice(name.lastIndexOf("/") + 1).toLowerCase();
} else {
return "";
}
},
//
listToString(list, separator) {
let strs = "";
separator = separator || ",";
for (let i in list) {
strs += list[i].url + separator;
}
return strs != '' ? strs.substr(0, strs.length - 1) : '';
}
}
};
</script>
<style scoped lang="scss">
.upload-file-uploader {
margin-bottom: 5px;
}
.upload-file-list .el-upload-list__item {
border: 1px solid #e4e7ed;
line-height: 2;
margin-bottom: 10px;
position: relative;
}
.upload-file-list .ele-upload-list__item-content {
display: flex;
justify-content: space-between;
align-items: center;
color: inherit;
}
.ele-upload-list__item-content-action .el-link {
margin-right: 10px;
}
</style>
<template>
<div class="upload-file">
<el-upload
:action="uploadFileUrl"
:before-upload="handleBeforeUpload"
:file-list="fileList"
:limit="limit"
:on-error="handleUploadError"
:on-exceed="handleExceed"
:on-success="handleUploadSuccess"
:show-file-list="false"
:headers="headers"
class="upload-file-uploader"
ref="upload"
>
<!-- 上传按钮 -->
<el-button size="mini" type="primary">选取文件</el-button>
<!-- 上传提示 -->
<div class="el-upload__tip" slot="tip" v-if="showTip">
请上传
<template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>
<template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
的文件
</div>
</el-upload>
<!-- 文件列表 -->
<transition-group class="upload-file-list el-upload-list el-upload-list--text" name="el-fade-in-linear" tag="ul">
<li :key="file.url" class="el-upload-list__item ele-upload-list__item-content" v-for="(file, index) in fileList">
<el-link :href="`${baseUrl}${file.url}`" :underline="false" target="_blank">
<span class="el-icon-document"> {{ getFileName(file.name) }} </span>
</el-link>
<div class="ele-upload-list__item-content-action">
<el-link :underline="false" @click="handleDelete(index)" type="danger">删除</el-link>
</div>
</li>
</transition-group>
</div>
</template>
<script>
import { getToken } from "@/utils/auth";
export default {
name: "FileUpload",
props: {
//
value: [String, Object, Array],
//
limit: {
type: Number,
default: 5,
},
// (MB)
fileSize: {
type: Number,
default: 5,
},
// , ['png', 'jpg', 'jpeg']
fileType: {
type: Array,
default: () => ["doc", "xls", "ppt", "txt", "pdf"],
},
//
isShowTip: {
type: Boolean,
default: true
}
},
data() {
return {
baseUrl: process.env.VUE_APP_BASE_API,
uploadFileUrl: process.env.VUE_APP_BASE_API + "/common/upload", //
headers: {
Authorization: "Bearer " + getToken(),
},
fileList: [],
};
},
watch: {
value: {
handler(val) {
if (val) {
let temp = 1;
//
const list = Array.isArray(val) ? val : this.value.split(',');
//
this.fileList = list.map(item => {
if (typeof item === "string") {
item = { name: item, url: item };
}
item.uid = item.uid || new Date().getTime() + temp++;
return item;
});
} else {
this.fileList = [];
return [];
}
},
deep: true,
immediate: true
}
},
computed: {
//
showTip() {
return this.isShowTip && (this.fileType || this.fileSize);
},
},
methods: {
//
handleBeforeUpload(file) {
//
if (this.fileType) {
let fileExtension = "";
if (file.name.lastIndexOf(".") > -1) {
fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
}
const isTypeOk = this.fileType.some((type) => {
if (file.type.indexOf(type) > -1) return true;
if (fileExtension && fileExtension.indexOf(type) > -1) return true;
return false;
});
if (!isTypeOk) {
this.$message.error(`文件格式不正确, 请上传${this.fileType.join("/")}格式文件!`);
return false;
}
}
//
if (this.fileSize) {
const isLt = file.size / 1024 / 1024 < this.fileSize;
if (!isLt) {
this.$message.error(`上传文件大小不能超过 ${this.fileSize} MB!`);
return false;
}
}
return true;
},
//
handleExceed() {
this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);
},
//
handleUploadError(err) {
this.$message.error("上传失败, 请重试");
},
//
handleUploadSuccess(res, file) {
this.$message.success("上传成功");
this.fileList.push({ name: res.fileName, url: res.fileName });
this.$emit("input", this.listToString(this.fileList));
},
//
handleDelete(index) {
this.fileList.splice(index, 1);
this.$emit("input", this.listToString(this.fileList));
},
//
getFileName(name) {
if (name.lastIndexOf("/") > -1) {
return name.slice(name.lastIndexOf("/") + 1).toLowerCase();
} else {
return "";
}
},
//
listToString(list, separator) {
let strs = "";
separator = separator || ",";
for (let i in list) {
strs += list[i].url + separator;
}
return strs != '' ? strs.substr(0, strs.length - 1) : '';
}
}
};
</script>
<style scoped lang="scss">
.upload-file-uploader {
margin-bottom: 5px;
}
.upload-file-list .el-upload-list__item {
border: 1px solid #e4e7ed;
line-height: 2;
margin-bottom: 10px;
position: relative;
}
.upload-file-list .ele-upload-list__item-content {
display: flex;
justify-content: space-between;
align-items: center;
color: inherit;
}
.ele-upload-list__item-content-action .el-link {
margin-right: 10px;
}
</style>