el-upload组件封装后更好用了

文章目录

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前言

对el-upload进行了简单的二次封装，实现了图片上传后回显的预览大图和移除图片。

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一、组件截图

​​图片上传​​

​​图片的回显和操作​​

二、组件代码部分

<template>
  <div class="component-upload-image">
    <el-upload
      :action="uploadImgUrl"
      list-type="picture-card"
      :on-success="handleUploadSuccess"
      :before-upload="handleBeforeUpload"
      :on-error="handleUploadError"
      name="file"
      :show-file-list="false"
      :headers="headers"
      style="display: inline-block; vertical-align: top"
    >
      <el-image v-if="!value" :src="value">
        <div slot="error" class="image-slot">
          <i class="el-icon-plus" />
        </div>
      </el-image>
      <div v-else class="image">
        <el-image :src="value" :style="`width:150px;height:150px;`" fit="fill"/>
        <div class="mask">
          <div class="actions">
            <span title="预览" @click.stop="dialogVisible = true">
              <i class="el-icon-zoom-in" />
            </span>
            <span title="移除" @click.stop="removeImage">
              <i class="el-icon-delete" />
            </span>
          </div>
        </div>
      </div>
    </el-upload>
    <el-dialog :visible.sync="dialogVisible" title="预览" width="800" append-to-body>
      <img :src="value" style="display: block; max-width: 100%; margin: 0 auto;">
    </el-dialog>
  </div>
</template>

<script>
import { getToken } from "@/utils/auth";
export default {
  name:'ImageUpload',
  data() {
    return {
      dialogVisible: false,
      uploadImgUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
      headers: {
        Authorization: "Bearer " + getToken(),
      },
    };
  },
  props: {
    value: {
      type: String,
      default: "",
    },
  },
  methods: {
    removeImage() {
      this.$emit("input", "");
    },
    handleUploadSuccess(res) {
      this.$emit("input", res.url);
      this.loading.close();
    },
    handleBeforeUpload() {
      this.loading = this.$loading({
        lock: true,
        text: "上传中",
        spinner: 'el-icon-loading',
        background: "rgba(0, 0, 0, 0.5)",
        customClass:'customClass'
      });
    },
    handleUploadError() {
      this.$message({
        type: "error",
        message: "上传失败",
      });
      this.loading.close();
    },
  },
  watch: {},
};
</script>

<style scoped lang="scss">
.image {
  position: relative;
  .mask {
    opacity: 0;
    position: absolute;
    top: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    transition: all 0.3s;
  }
  &:hover .mask {
    opacity: 1;
  }
}
</style>

三、引入组件试试吧～