下面这个是导航栏通过on触发的事件 与图片联动

<template>
  <div>
    <ul>
      <li>{{obj.account}}</li>
      <li>{{obj.ctime|dataFormat}}</li>
      <li>{{obj.id}}</li>
      <li>{{obj.userGroup}}</li>

      <div>
        <!-- action上传头像的接口 -->
        <!-- on-success成功的回调 -->
        <!-- before-upload上传之前的验证 -->
        <el-upload
          class="avatar-uploader"
          action="http://sell.h5.itsource.cn:8087/users/avatar_upload"
          :show-file-list="false"
          :on-success="handleAvatarSuccess"
          :before-upload="beforeAvatarUpload"
        >
          <img v-if="obj.imgUrl" :src="obj.imgUrl" class="avatar" />
          <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
      </div>
    </ul>
  </div>
</template>

<script>
import { infoApi, avataredit } from "@/api/account.api";
export default {
  data() {
    return {
      obj: {}
      // imgUrl: ""
    };
  },
  created() {
    this.infolist();
  },
  methods: {
    async infolist() {
      let res = await infoApi().then(res => {
        this.obj = res.data;
      });
    },
    handleAvatarSuccess(data) {
      console.log(data);
      // this.imgUrl = data.imgUrl;
      // 这边成功后出发中央事件与头像联动
      // 然后在导航栏提交的时候通过on接受
      this.$bus.$emit("sendImg", data.imgUrl);
      avataredit(data.imgUrl).then(res => {
        if (res.data.code === 0) {
          this.infolist();
        }
      });
      // this.imageUrl = URL.createObjectURL(file.raw);
    },
    beforeAvatarUpload(file) {
      const isJPG = file.type === "image/jpeg";
      const isLt2M = file.size / 1024 / 1024 < 2;

      if (!isJPG) {
        this.$message.error("上传头像图片只能是 JPG 格式!");
      }
      if (!isLt2M) {
        this.$message.error("上传头像图片大小不能超过 2MB!");
      }
      return isJPG && isLt2M;
    }
  }
};
</script>

<style lang="scss" scoped>
li {
  line-height: 100px;
  height: 100px;
  width: 100%;
  border-bottom: 1px solid gray;
}
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #3b73ab;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #4e8add;
  width: 178px;
  height: 178px;
  line-height: 178px;
  text-align: center;
}
.avatar {
  width: 178px;
  height: 178px;
  display: block;
}
img {
  height: 100px;
  width: 100px;
}
</style>