图片上传 gengdidi

gassafetyprogress-web/src/components/MyFileUpload/index.vue

+<template>
+  <div class="upload-file">
+    <el-upload
+      :action="uploadFileUrl"
+      :before-upload="handleBeforeUpload"
+      :file-list="fileArr"
+      :limit="1"
+      :list-type="listType"
+      :on-error="handleUploadError"
+      :on-exceed="handleExceed"
+      :on-success="handleUploadSuccess"
+      :on-remove="handleRemove"
+      :on-preview="handleFileClick"
+      :on-change="fileChange"
+      :show-file-list="true"
+      :headers="headers"
+      class="upload-file-uploader"
+      :class="{ hide: fileArr.length>0 ||addShow }"
+      ref="upload"
+    >
+      <!-- 上传按钮 -->
+      <!-- <el-button size="mini" icon="" type="primary"></el-button> -->
+      <i class="el-icon-plus"></i>
+      <!-- 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>
+     <el-image v-show="false"
+        id="img"
+        ref="previewImg"
+        :src="dialogImageUrl"
+        :preview-src-list="bigImageArr"
+        :z-index="9999999"
+      ></el-image>
+    <!-- <el-dialog
+      :center="true"
+      width="50%"
+      :modal="modal"
+      :visible.sync="dialogVisible"
+    >
+      <img :src="dialogImageUrl" alt="" />
+    </el-dialog> -->
+
+    <!-- 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],
+    listType: {
+      type: String,
+      defaule: "text",
+    },
+    // 大小限制(MB)
+    fileSize: {
+      type: Number,
+      default: 5,
+    },
+    fileArr: {
+      type: Array,
+      default: [],
+    },
+    // 文件类型, 例如['png', 'jpg', 'jpeg']
+    fileType: {
+      type: Array,
+      // default: () => ["doc", "xls", "ppt", "txt", "pdf", "png", "jpg", "jpeg"],
+      default: () => ["png", "jpg", "jpeg", "gif"],
+    },
+    // 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: [],
+      modal: false,
+      dialogVisible: false,
+      dialogImageUrl: "",
+      addShow: true,
+    };
+  },
+  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 {
+        this.fileList = [];
+        return [];
+      }
+    },
+    bigImageArr() {
+      return [this.dialogImageUrl]
+    },
+  },
+  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.$emit("resFun", res);
+    },
+    // 文件列表移除文件
+    handleRemove(file, fileList) {
+      console.log("列表移除", file, fileList);
+      this.addShow = fileList.length > 0 ? true : false;
+      this.$emit("remove", file);
+    },
+    // 删除文件
+    handleDelete(index) {
+      this.fileList.splice(index, 1);
+      this.$emit("input", "");
+      // let that = this,
+      //   param;
+      // param = file.response ? file.response.fileName.replace(/\\/g, "%")
+      //   : file.response.url.replace(/\\/g, "%").slice(9);
+      // $.ajax({
+      //   type: "GET",
+      //   url: process.env.VUE_APP_BASE_API + "/common/deleteFile",
+      //   data: {savePath: param},
+      //   dataType: "json",
+      //   success: function(data){
+      //     if (data) that.$message.success("删除成功");
+      //     else return false;
+      //   }
+      // });
+    },
+    handleFileClick(file, fileList) {
+      this.dialogImageUrl = file.response ? file.response.url : file.url;
+      //  this.dialogImageUrl =if(this.fileArr) this.fileArr[0].url;
+
+      // this.dialogVisible = true;
+      this.$refs.previewImg.showViewer = true;
+
+      console.log(file);
+      // console.log(file.response.url)
+    },
+    // 获取文件名称
+    getFileName(name) {
+      if (name.lastIndexOf("/") > -1) {
+        return name.slice(name.lastIndexOf("/") + 1).toLowerCase();
+      } else {
+        return "";
+      }
+    },
+    // 当改变列表改变时
+    fileChange(file, fileList) {
+      this.addShow = fileList.length > 0 ? true : false;
+    },
+  },
+  created() {
+    // this.fileList = this.list;
+    this.addShow = this.fileArr.length > 0 ? true : false;
+  },
+
+
+};
+</script>
+
+<style scoped lang="scss">
+img {
+  width: 100%;
+}
+.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>