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Commit c4912573 authored by sam's avatar sam
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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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ruoyi-ui/src/components/FileUpload/index.vue
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<template> <template>
<div class="upload-file"> <div class="upload-file">
<el-upload <el-upload
:action="uploadFileUrl" :action="uploadFileUrl"
:before-upload="handleBeforeUpload" :before-upload="handleBeforeUpload"
:file-list="fileList" :file-list="fileList"
:limit="limit" :limit="limit"
:on-error="handleUploadError" :on-error="handleUploadError"
:on-exceed="handleExceed" :on-exceed="handleExceed"
:on-success="handleUploadSuccess" :on-success="handleUploadSuccess"
:show-file-list="false" :show-file-list="false"
:headers="headers" :headers="headers"
class="upload-file-uploader" class="upload-file-uploader"
ref="upload" ref="upload"
> >
<!-- 上传按钮 --> <!-- 上传按钮 -->
<el-button size="mini" type="primary">选取文件</el-button> <el-button size="mini" type="primary">选取文件</el-button>
<!-- 上传提示 --> <!-- 上传提示 -->
<div class="el-upload__tip" slot="tip" v-if="showTip"> <div class="el-upload__tip" slot="tip" v-if="showTip">
请上传 请上传
<template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template> <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> <template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
的文件 的文件
</div> </div>
</el-upload> </el-upload>
<!-- 文件列表 --> <!-- 文件列表 -->
<transition-group class="upload-file-list el-upload-list el-upload-list--text" name="el-fade-in-linear" tag="ul"> <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"> <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"> <el-link :href="`${baseUrl}${file.url}`" :underline="false" target="_blank">
<span class="el-icon-document"> {{ getFileName(file.name) }} </span> <span class="el-icon-document"> {{ getFileName(file.name) }} </span>
</el-link> </el-link>
<div class="ele-upload-list__item-content-action"> <div class="ele-upload-list__item-content-action">
<el-link :underline="false" @click="handleDelete(index)" type="danger">删除</el-link> <el-link :underline="false" @click="handleDelete(index)" type="danger">删除</el-link>
</div> </div>
</li> </li>
</transition-group> </transition-group>
</div> </div>
</template> </template>
<script> <script>
import { getToken } from "@/utils/auth"; import { getToken } from "@/utils/auth";
export default { export default {
name: "FileUpload", name: "FileUpload",
props: { props: {
// 值 // 值
value: [String, Object, Array], value: [String, Object, Array],
// 数量限制 // 数量限制
limit: { limit: {
type: Number, type: Number,
default: 5, default: 5,
}, },
// 大小限制(MB) // 大小限制(MB)
fileSize: { fileSize: {
type: Number, type: Number,
default: 5, default: 5,
}, },
// 文件类型, 例如['png', 'jpg', 'jpeg'] // 文件类型, 例如['png', 'jpg', 'jpeg']
fileType: { fileType: {
type: Array, type: Array,
default: () => ["doc", "xls", "ppt", "txt", "pdf"], default: () => ["doc", "xls", "ppt", "txt", "pdf"],
}, },
// 是否显示提示 // 是否显示提示
isShowTip: { isShowTip: {
type: Boolean, type: Boolean,
default: true default: true
} }
}, },
data() { data() {
return { return {
baseUrl: process.env.VUE_APP_BASE_API, baseUrl: process.env.VUE_APP_BASE_API,
uploadFileUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址 uploadFileUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
headers: { headers: {
Authorization: "Bearer " + getToken(), Authorization: "Bearer " + getToken(),
}, },
fileList: [], fileList: [],
}; };
}, },
watch: { watch: {
value: { value: {
handler(val) { handler(val) {
if (val) { if (val) {
let temp = 1; let temp = 1;
// 首先将值转为数组 // 首先将值转为数组
const list = Array.isArray(val) ? val : this.value.split(','); const list = Array.isArray(val) ? val : this.value.split(',');
// 然后将数组转为对象数组 // 然后将数组转为对象数组
this.fileList = list.map(item => { this.fileList = list.map(item => {
if (typeof item === "string") { if (typeof item === "string") {
item = { name: item, url: item }; item = { name: item, url: item };
} }
item.uid = item.uid || new Date().getTime() + temp++; item.uid = item.uid || new Date().getTime() + temp++;
return item; return item;
}); });
} else { } else {
this.fileList = []; this.fileList = [];
return []; return [];
} }
}, },
deep: true, deep: true,
immediate: true immediate: true
} }
}, },
computed: { computed: {
// 是否显示提示 // 是否显示提示
showTip() { showTip() {
return this.isShowTip && (this.fileType || this.fileSize); return this.isShowTip && (this.fileType || this.fileSize);
}, },
}, },
methods: { methods: {
// 上传前校检格式和大小 // 上传前校检格式和大小
handleBeforeUpload(file) { handleBeforeUpload(file) {
// 校检文件类型 // 校检文件类型
if (this.fileType) { if (this.fileType) {
let fileExtension = ""; let fileExtension = "";
if (file.name.lastIndexOf(".") > -1) { if (file.name.lastIndexOf(".") > -1) {
fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1); fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
} }
const isTypeOk = this.fileType.some((type) => { const isTypeOk = this.fileType.some((type) => {
if (file.type.indexOf(type) > -1) return true; if (file.type.indexOf(type) > -1) return true;
if (fileExtension && fileExtension.indexOf(type) > -1) return true; if (fileExtension && fileExtension.indexOf(type) > -1) return true;
return false; return false;
}); });
if (!isTypeOk) { if (!isTypeOk) {
this.$message.error(`文件格式不正确, 请上传${this.fileType.join("/")}格式文件!`); this.$message.error(`文件格式不正确, 请上传${this.fileType.join("/")}格式文件!`);
return false; return false;
} }
} }
// 校检文件大小 // 校检文件大小
if (this.fileSize) { if (this.fileSize) {
const isLt = file.size / 1024 / 1024 < this.fileSize; const isLt = file.size / 1024 / 1024 < this.fileSize;
if (!isLt) { if (!isLt) {
this.$message.error(`上传文件大小不能超过 ${this.fileSize} MB!`); this.$message.error(`上传文件大小不能超过 ${this.fileSize} MB!`);
return false; return false;
} }
} }
return true; return true;
}, },
// 文件个数超出 // 文件个数超出
handleExceed() { handleExceed() {
this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`); this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);
}, },
// 上传失败 // 上传失败
handleUploadError(err) { handleUploadError(err) {
this.$message.error("上传失败, 请重试"); this.$message.error("上传失败, 请重试");
}, },
// 上传成功回调 // 上传成功回调
handleUploadSuccess(res, file) { handleUploadSuccess(res, file) {
this.$message.success("上传成功"); this.$message.success("上传成功");
this.fileList.push({ name: res.fileName, url: res.fileName }); this.fileList.push({ name: res.fileName, url: res.fileName });
this.$emit("input", this.listToString(this.fileList)); this.$emit("input", this.listToString(this.fileList));
}, },
// 删除文件 // 删除文件
handleDelete(index) { handleDelete(index) {
this.fileList.splice(index, 1); this.fileList.splice(index, 1);
this.$emit("input", this.listToString(this.fileList)); this.$emit("input", this.listToString(this.fileList));
}, },
// 获取文件名称 // 获取文件名称
getFileName(name) { getFileName(name) {
if (name.lastIndexOf("/") > -1) { if (name.lastIndexOf("/") > -1) {
return name.slice(name.lastIndexOf("/") + 1).toLowerCase(); return name.slice(name.lastIndexOf("/") + 1).toLowerCase();
} else { } else {
return ""; return "";
} }
}, },
// 对象转成指定字符串分隔 // 对象转成指定字符串分隔
listToString(list, separator) { listToString(list, separator) {
let strs = ""; let strs = "";
separator = separator || ","; separator = separator || ",";
for (let i in list) { for (let i in list) {
strs += list[i].url + separator; strs += list[i].url + separator;
} }
return strs != '' ? strs.substr(0, strs.length - 1) : ''; return strs != '' ? strs.substr(0, strs.length - 1) : '';
} }
} }
}; };
</script> </script>
<style scoped lang="scss"> <style scoped lang="scss">
.upload-file-uploader { .upload-file-uploader {
margin-bottom: 5px; margin-bottom: 5px;
} }
.upload-file-list .el-upload-list__item { .upload-file-list .el-upload-list__item {
border: 1px solid #e4e7ed; border: 1px solid #e4e7ed;
line-height: 2; line-height: 2;
margin-bottom: 10px; margin-bottom: 10px;
position: relative; position: relative;
} }
.upload-file-list .ele-upload-list__item-content { .upload-file-list .ele-upload-list__item-content {
display: flex; display: flex;
justify-content: space-between; justify-content: space-between;
align-items: center; align-items: center;
color: inherit; color: inherit;
} }
.ele-upload-list__item-content-action .el-link { .ele-upload-list__item-content-action .el-link {
margin-right: 10px; margin-right: 10px;
} }
</style> </style>
\ No newline at end of file
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