首先 配置好华为云OBS所需的bucket，拿到访问秘钥。

在Bucket-基本信息里面查看Endpoint，并配置好华为云OBS CORS跨域规则，避免跨域报错。

所需有：Bucket，Endpoint，AccessKeyId，Secret AccessKey

 开始写项目

引入两个js，

npm install --save vue-uuid

npm i esdk-obs-browserjs

在你的vue项目中，新建一个OBS上传图片的页面，如图所示

<template>
  <div class="component-upload-image">
    <el-upload action list-type="picture-card" :before-upload="handleBeforeUpload" 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:100px;height:100px;`" 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 { uuid } from "vue-uuid";
import { getToken } from "@/utils/auth";
import ObsClient from "esdk-obs-browserjs/src/obs";
export default {
  name: "ImageUpload",
  props: {
    // 值
    value: {
      type: String,
      default: "",
    },
    // 大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ['png', 'jpg', 'jpeg'],
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true,
    },
  },
  data() {
    return {
      dialogVisible: false,
      headers: {
        Authorization: "Bearer " + getToken(),
      },
      file: undefined,
    };
  },
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  methods: {
    removeImage() {
      this.$emit("input", "");
    },
    // 上传前校检格式和大小
    handleBeforeUpload(file) {
      console.log(file);
      let that = this;
      let fileExtension = "";
      // 校检文件类型
      if (this.fileType) {
        if (file.name.lastIndexOf(".") > -1) {
          fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
        }
        const isTypeOk = this.fileType.some((type) => {
          if (file.type.indexOf(type) > -1) return true;
          if (fileExtension && fileExtension.indexOf(type) > -1) return true;
          return false;
        });
        if (!isTypeOk) {
          this.msgError(
            `文件格式不正确, 请上传${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.msgError(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      this.loading = this.$loading({
        lock: true,
        text: "上传中",
        background: "rgba(0, 0, 0, 0.7)",
      });
      let uuids = uuid.v1() + Date.now() + "." + fileExtension;
      debugger;
      // 创建ObsClient实例
      var obsClient = new ObsClient({
        access_key_id: "上面的Access Key Id", 
        secret_access_key: "上面的Secret AccessKey", 
        server: "https://上面到的endPoint"
      });
      obsClient.putObject(
        {
          Bucket: "上面到的Bucket",
          Key: "server/" + uuids, // 文件名   server是目录
          SourceFile: file, //文件本体
        },
        function (err, result) {
          if (err) {
            console.error("Error-->" + err);
            that.handleUploadError();
          } else {
            console.log("响应Status-->" + result.CommonMsg.Status);

            // OBS响应没有文件地址，需自行拼接   拼接格式： https:// +  桶名 + endPoint  +  /  + 上传的文件路径
            that.$emit("input", "https://zjzxapp.obs.cn-east-3.myhuaweicloud.com/server/" + uuids);
            that.loading.close();
          }
        }
      );

      return true;
    },

    // 上传失败
    handleUploadError(err) {
      console.log(err);
      this.msgError("上传图片失败，请重试!");
      this.loading.close();
    }
  },
};
</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>
<style scoped>
.component-upload-image>>>.el-upload--picture-card {
  width: 100px;
  height: 100px;
  line-height: 106px;
}

.component-upload-image>>>.el-image {
  width: 100px !important;
  height: 100px !important;
}
</style>

页面调用

<!-- 添加或修改用户对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="700px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="用户名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入用户名称" />
        </el-form-item>
        <el-form-item label="头像">
          <ObsUpload v-model="form.picUrl"/>
        </el-form-item>
        <el-form-item label="介绍" prop="content">
          <el-input v-model="form.content" type="textarea" rows="4" placeholder="请输入内容" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancel">取 消</el-button>
          <el-button type="primary" @click="submitForm">确 定</el-button>
      </div>
    </el-dialog>


<script>

import ObsUpload from '@/components/ObsUpload';

export default {
  components: {
    ObsUpload,
  }
  
};
</script>