From fa97ed9e2cb51b631115502d9d91fef66638da71 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Thu, 30 Dec 2021 13:50:57 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=E6=96=87=E4=BB=B6=E4=B8=8A?=
 =?UTF-8?q?=E4=BC=A0=E7=BB=84=E4=BB=B6?=
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---
 src/components/FileUpload/index.vue | 188 ++++++++++++++++++++++++++++
 src/main.js                         |   3 +
 2 files changed, 191 insertions(+)
 create mode 100644 src/components/FileUpload/index.vue

diff --git a/src/components/FileUpload/index.vue b/src/components/FileUpload/index.vue
new file mode 100644
index 0000000..0bec834
--- /dev/null
+++ b/src/components/FileUpload/index.vue
@@ -0,0 +1,188 @@
+<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" 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 setup>
+import { getToken } from "@/utils/auth";
+
+const props = defineProps({
+  modelValue: [String, Object, Array],
+  // 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: () => ["doc", "xls", "ppt", "txt", "pdf"],
+  },
+  // 是否显示提示
+  isShowTip: {
+    type: Boolean,
+    default: true
+  }
+});
+
+const { proxy } = getCurrentInstance();
+const emit = defineEmits();
+const baseUrl = import.meta.env.VITE_APP_BASE_API;
+const uploadFileUrl = ref(import.meta.env.VITE_APP_BASE_API + "/common/upload"); // 上传的图片服务器地址
+const headers = ref({ Authorization: "Bearer " + getToken() });
+const fileList = ref([]);
+const showTip = computed(
+  () => props.isShowTip && (props.fileType || props.fileSize)
+);
+
+watch(() => props.modelValue, val => {
+  if (val) {
+    let temp = 1;
+    // 首先将值转为数组
+    const list = Array.isArray(val) ? val : props.modelValue.split(',');
+    // 然后将数组转为对象数组
+    fileList.value = list.map(item => {
+      if (typeof item === "string") {
+        item = { name: item, url: item };
+      }
+      item.uid = item.uid || new Date().getTime() + temp++;
+      return item;
+    });
+  } else {
+    fileList.value = [];
+    return [];
+  }
+});
+
+// 上传前校检格式和大小
+function handleBeforeUpload(file) {
+  // 校检文件类型
+  if (props.fileType.length) {
+    let fileExtension = "";
+    if (file.name.lastIndexOf(".") > -1) {
+      fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
+    }
+    const isTypeOk = props.fileType.some((type) => {
+      if (file.type.indexOf(type) > -1) return true;
+      if (fileExtension && fileExtension.indexOf(type) > -1) return true;
+      return false;
+    });
+    if (!isTypeOk) {
+      proxy.$modal.msgError(`文件格式不正确, 请上传${props.fileType.join("/")}格式文件!`);
+      return false;
+    }
+  }
+  // 校检文件大小
+  if (props.fileSize) {
+    const isLt = file.size / 1024 / 1024 < props.fileSize;
+    if (!isLt) {
+      proxy.$modal.msgError(`上传文件大小不能超过 ${props.fileSize} MB!`);
+      return false;
+    }
+  }
+  return true;
+}
+
+// 文件个数超出
+function handleExceed() {
+  proxy.$modal.msgError(`上传文件数量不能超过 ${props.limit} 个!`);
+}
+
+// 上传失败
+function handleUploadError(err) {
+  proxy.$modal.msgError("上传失败");
+}
+
+// 上传成功回调
+function handleUploadSuccess(res, file) {
+  proxy.$modal.msgSuccess("上传成功");
+  fileList.value.push({ name: res.fileName, url: res.fileName });
+  emit("update:modelValue", listToString(fileList.value));
+}
+
+// 删除文件
+function handleDelete(index) {
+  fileList.value.splice(index, 1);
+  emit("update:modelValue", listToString(fileList.value));
+}
+
+// 获取文件名称
+function getFileName(name) {
+  if (name.lastIndexOf("/") > -1) {
+    return name.slice(name.lastIndexOf("/") + 1).toLowerCase();
+  } else {
+    return "";
+  }
+}
+
+// 对象转成指定字符串分隔
+function 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>
diff --git a/src/main.js b/src/main.js
index d6e38bf..664a465 100644
--- a/src/main.js
+++ b/src/main.js
@@ -31,6 +31,8 @@ import { parseTime, resetForm, addDateRange, handleTree, selectDictLabel } from
 import Pagination from '@/components/Pagination'
 // 自定义表格工具组件
 import RightToolbar from '@/components/RightToolbar'
+// 文件上传组件
+import FileUpload from "@/components/FileUpload"
 // 图片上传组件
 import ImageUpload from "@/components/ImageUpload"
 // 图片预览组件
@@ -55,6 +57,7 @@ app.config.globalProperties.selectDictLabel = selectDictLabel
 app.component('DictTag', DictTag)
 app.component('Pagination', Pagination)
 app.component('TreeSelect', TreeSelect)
+app.component('FileUpload', FileUpload)
 app.component('ImageUpload', ImageUpload)
 app.component('ImagePreview', ImagePreview)
 app.component('RightToolbar', RightToolbar)