新增文件上传组件

+<template>
+  <div class="upload-file">
+    <el-upload
+      :action="uploadFileUrl"
+      :before-upload="handleBeforeUpload"
+      :file-list="fileList"
+      :limit="1"
+      :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 list">
+        <el-link :href="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 {
+  props: {
+    // 值
+    value: [String, Object, Array],
+    // 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
+    }
+  },
+  data() {
+    return {
+      uploadFileUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
+      headers: {
+        Authorization: "Bearer " + getToken(),
+      },
+      fileList: [],
+    };
+  },
+  computed: {
+    // 是否显示提示
+    showTip() {
+      return this.isShowTip && (this.fileType || this.fileSize);
+    },
+    // 列表
+    list() {
+      let temp = 1;
+      if (this.value) {
+        // 首先将值转为数组
+        const list = Array.isArray(this.value) ? this.value : [this.value];
+        // 然后将数组转为对象数组
+        return list.map((item) => {
+          if (typeof item === "string") {
+            item = { name: item, url: item };
+          }
+          item.uid = item.uid || new Date().getTime() + temp++;
+          return item;
+        });
+      } else {
+        return [];
+      }
+    },
+  },
+  methods: {
+    // 上传前校检格式和大小
+    handleBeforeUpload(file) {
+      // 校检文件类型
+      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;
+        }
+      }
+      // 校检文件大小
+      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 ${this.fileSize} MB!`);
+          return false;
+        }
+      }
+      return true;
+    },
+    // 文件个数超出
+    handleExceed() {
+      this.$message.error(`只允许上传单个文件`);
+    },
+    // 上传失败
+    handleUploadError(err) {
+      this.$message.error("上传失败, 请重试");
+    },
+    // 上传成功回调
+    handleUploadSuccess(res, file) {
+      this.$message.success("上传成功");
+      this.$emit("input", res.url);
+    },
+    // 删除文件
+    handleDelete(index) {
+      this.fileList.splice(index, 1);
+      this.$emit("input", '');
+    },
+    // 获取文件名称
+    getFileName(name) {
+      if (name.lastIndexOf("/") > -1) {
+        return name.slice(name.lastIndexOf("/") + 1).toLowerCase();
+      } else {
+        return "";
+      }
+    }
+  },
+  created() {
+    this.fileList = this.list;
+  },
+};
+</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>

@@ -34,7 +34,6 @@
 import { getToken } from "@/utils/auth";
 import { getToken } from "@/utils/auth";
 
 
 export default {
 export default {
-  components: {},
   data() {
   data() {
     return {
     return {
       uploadImgUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
       uploadImgUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址