jiace-web/src/components/Upload/singleUpload.vue

<template>
  <div>
    <el-upload
      accept=".png, .jpg"
      :action="useOss ? ossUploadUrl : minioUploadUrl"
      :data="useOss ? dataObj : null"
      list-type="picture"
      :multiple="false"
      :show-file-list="showFileList"
      :file-list="fileList"
      :before-upload="beforeUpload"
      :on-remove="handleRemove"
      :on-success="handleUploadSuccess"
      :on-preview="handlePreview"
    >
      <el-button size="small" type="primary">{{ text }}</el-button>
      <div slot="tip" class="el-upload__tip" v-if="flag">
        只能上传jpg/png文件，且不超过10MB
      </div>
    </el-upload>
    <el-dialog :visible.sync="dialogVisible">
      <img width="100%" :src="fileList[0].url" alt="" />
    </el-dialog>
  </div>
</template>
<script>
import { policy } from '@/api/oss';

export default {
  name: 'singleUpload',
  props: {
    value: String,
    text: {
      type: String,
      default: '点击上传'
    },
    flag: {
      type: Boolean,
      default: false
    }
  },
  computed: {
    imageUrl() {
      return this.value;
    },
    imageName() {
      if (this.value != null && this.value !== '') {
        return this.value.substr(this.value.lastIndexOf('/') + 1);
      } else {
        return null;
      }
    },
    fileList() {
      return [
        {
          name: this.imageName,
          url: this.imageUrl
        }
      ];
    },
    showFileList: {
      get: function() {
        return (
          this.value !== null && this.value !== '' && this.value !== undefined
        );
      },
      set: function(newValue) {}
    }
  },
  data() {
    return {
      dataObj: {
        policy: '',
        signature: '',
        key: '',
        ossaccessKeyId: '',
        dir: '',
        host: ''
        // callback:'',
      },
      dialogVisible: false,
      useOss: false, //使用oss->true;使用MinIO->false
      ossUploadUrl: 'http://macro-oss.oss-cn-shenzhen.aliyuncs.com',
      // minioUploadUrl: 'http://192.168.99.239:1818/minio/upload'
      minioUploadUrl: process.env.VUE_APP_BASE_API + '/minio/upload'
    };
  },
  methods: {
    emitInput(val) {
      this.$emit('input', val);
    },
    handleRemove(file, fileList) {
      this.emitInput('');
    },
    handlePreview(file) {
      this.dialogVisible = true;
    },
    beforeUpload(file) {
      // const fileSuffix = file.name.substring(file.name.lastIndexOf('.') + 1);
      // const whiteList = ['pdf', 'doc', 'docx', 'xls', 'xlsx'];
      // if (whiteList.indexOf(fileSuffix) === -1) {
      //   this.$msg('上传文件只能是 pdf、doc、docx、xls、xlsx格式', 'error');
      //   return false;
      // }
      // const isLt2M = file.size / 1024 / 1024 < 2;
      // if (!isLt2M) {
      //   this.$msg('上传文件大小不能超过 2MB', 'error');
      //   return false;
      // }
      let _self = this;
      if (!this.useOss) {
        //不使用oss不需要获取策略
        return true;
      }
      return new Promise((resolve, reject) => {
        policy()
          .then(response => {
            _self.dataObj.policy = response.data.policy;
            _self.dataObj.signature = response.data.signature;
            _self.dataObj.ossaccessKeyId = response.data.accessKeyId;
            _self.dataObj.key = response.data.dir + '/${filename}';
            _self.dataObj.dir = response.data.dir;
            _self.dataObj.host = response.data.host;
            // _self.dataObj.callback = response.data.callback;
            resolve(true);
          })
          .catch(err => {
            console.log(err);
            reject(false);
          });
      });
    },
    handleUploadSuccess(res, file) {
      this.showFileList = true;
      this.fileList.pop();
      let url = this.dataObj.host + '/' + this.dataObj.dir + '/' + file.name;
      if (!this.useOss) {
        //不使用oss直接获取图片路径
        url = res.data.url;
      }
      this.fileList.push({ name: file.name, url: url });
      this.emitInput(this.fileList[0].url);
    }
  }
};
</script>
<style></style>