上传图片组件(多图上传,添加,删除,预览)

最近使用上传图片  发现没自己想用的    就自己封装了一个  

<template>
  <div>
    <div class="image-wrapper">
      <div class="img-wrapper">
        <div class="item" v-for="(item, index) in imgList" :key="index">
          <img :src="item" class="dis-image" />
          <div class="modal">
            <span class="enlargement" @click="enlargementImg(index)">
              <i class="el-icon-search"></i>
            </span>
            <span class="delete" @click="deleteImg(index)">
              <i class="el-icon-delete"></i>
            </span>
          </div>
        </div>
        <div
          class="item upload-icon"
          @click="preSelect"
          v-if="imgList.length < fileCount"
        >
          <span class="heng"></span>
          <span class="su"></span>
        </div>
      </div>
      <input
        type="file"
        class="inputer"
        ref="inputRef"
        @change="handleChange($event)"
        multiple="multiple"
      />
    </div>
    <el-dialog :visible.sync="dialogVisible" :modal="false">
      <img width="100%" :src="dialogImageUrl" alt="" />
    </el-dialog>
  </div>
</template>

<script>
import request from "@/utils/request";
import { getToken } from "@/utils/auth";

export default {
  name: "imgUpload",
  props: {
    fileMaxSize: {
      //默认最大体积M
      type: Number,
      required: false,
      default: 10,
    },
    fileCount: {
      //上传图片数量
      type: Number,
      required: false,
      default: 1,
    },
    fileType: {
      type: String,
      required: false,
      default: "image/png, image/jpeg, image/jpg",
    },
    imgList: {
      type: Array,
    },
  },
  data() {
    return {
      dialogImageUrl: "",
      dialogVisible: false,
    };
  },
  created() {},
  methods: {
    preSelect() {
      //点击上传图片之前
      this.$refs.inputRef.click();
    },

    handleChange(e) {
      //点击上传图片事件
      let BreakException = {};
      let file = e.target.files;
      if (file.length + this.imgList.length > this.fileCount) {
        this.$message.error("最多上传" + this.fileCount + "张图片");
        return;
      }
      try {
        file.forEach((element) => {
          console.log(element);
          if (!element.type || this.fileType.indexOf(element.type) === -1) {
            this.$message.error("图片类型错误");
            throw BreakException;
          } else if (element.size > this.fileMaxSize * 1024 * 1000) {
            this.$message.error("图片太大请重新上传");
            throw BreakException;
          }
        });
      } catch (error) {
        if (e !== BreakException) throw e;
      }

      file.forEach((element) => {
        // //以base64的形式展示
        let freader = new FileReader();
        freader.readAsDataURL(element);
        freader.onload = (e) => {
          //   this.imgList.push(e.target.result);
        };
        let formData = new FormData();
        formData.append("file", element);
        request({
          url: process.env.VUE_APP_BASE_API + "/common/upload",
          method: "post",
          data: formData,
          header: { Authorization: "Bearer " + getToken() },
        }).then((url) => {
          this.imgList.push(url.url);
        });
      });
      this.$refs.inputRef.value = "";
    },
    deleteImg(ind) {
      // 删除图片
      this.imgList.splice(ind, 1);
    },
    enlargementImg(ind) {
      this.dialogImageUrl = this.imgList[ind];
      this.dialogVisible = true;
    },
  },
};
</script>

<style scoped>
.image-wrapper {
  padding: 10px 10px;
}
.inputer {
  width: 100px;
  height: 100px;
  display: none;
}
.img-wrapper {
  display: flex;
  flex-direction: row;
  justify-content: left;
  flex-wrap: wrap;
}
.image-wrapper .upload-icon {
  height: 100px;
  text-align: center;
  border: 1px solid #dbdbdb;
  border-radius: 5px;
}
.img-wrapper .item {
  position: relative;
  overflow: hidden;
  width: 150px;
  height: 150px;
  border-radius: 5px;
  text-align: center;
  margin-right: 20px;
}
.img-wrapper .item .modal {
  display: none;
}
.img-wrapper .item:hover .modal {
  display: inline-block;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
}
.modal span:nth-child(1) {
  line-height: 150px;
  color: #fff;
  margin-right: 10px;
  font-size: 18px;
}
.modal span:nth-child(2) {
  line-height: 150px;
  color: #fff;
  margin-left: 10px;
  font-size: 18px;
}
.img-wrapper .item .dis-image {
  width: 100%;
  height: 100%;
}
/* .image-wrapper .item .delete {
  display: inline-block;
  position: absolute;
  background-color: #000;
  width: 20px;
  height: 20px;
  color: #fff;
  font-size: 16px;
  border-radius: 0 0 0 80%;
  top: 0;
  right: 0;
  line-height: 20px;
} */

.img-wrapper .item .heng {
  position: absolute;
  display: inline-block;
  width: 30px;
  height: 3px;
  background: #dbdbdb;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.img-wrapper .item .su {
  position: absolute;
  display: inline-block;
  width: 3px;
  height: 30px;
  background: #dbdbdb;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
</style>