combination-tall/src/utils/upload.js

// H5选择文件
const chooseFileH5 = (extension = ['.xls', '.xlsx']) => {
  return new Promise((resolve, reject) => {
    uni.chooseFile({
      count: 1, //默认100
      extension,
      success(res) {
        resolve(res.tempFilePaths[0]);
      },
      fail() {
        reject('上传失败');
      },
    });
  });
};

// 微信选择文件 从客户端会话选择文件。
const chooseFileWeixin = (extension = ['.xls', '.xlsx']) => {
  return new Promise((resolve, reject) => {
    wx.chooseMessageFile({
      count: 1,
      extension,
      type: 'file',
      success(res) {
        resolve(res.tempFiles[0].path);
      },
      fail() {
        reject('上传失败');
      },
    });
  });
};

// 选择文件
const chooseFile = (extension = ['.xls', '.xlsx']) => {
  let fn = null;
  /* #ifdef H5 */
  fn = chooseFileH5(extension);
  /* #endif */

  /* #ifdef MP-WEIXIN */
  fn = chooseFileWeixin(extension);
  /* #endif */
  return fn;
};

export default {
  /**
   * 上传单个文件
   * @param {string} url 服务器地址
   * @param {object} formData 上传的其他字段
   * @param {array} extension 上传文件类型 扩展名数组
   * @param {string} name
   * @returns
   */
  chooseAndUpload(url, formData = {}, extension = ['.xls', '.xlsx'], name = 'param') {
    uni.hideLoading();
    clearTimeout(timer);
    let timer = null;
    return new Promise((resolve, reject) => {
      const token = uni.$t.storage.getStorageSync(uni.$t.app.tokenKey);
      if (!token) {
        return reject('用户未登录，请登录后重试');
      }
      chooseFile(extension)
        .then(filePath => {
          console.log('filePath: ', filePath);
          if (!timer) {
            timer = setTimeout(() => {
              uni.$t.ui.showLoading('正在上传...');
              timer = null;
            }, 800);
          }
          // 开始上传
          uni.uploadFile({
            url,
            filePath,
            name,
            formData,
            header: { Authorization: `Bearer ${token}` },
            success: ({ data, statusCode }) => {
              clearTimeout(timer);
              uni.hideLoading();

              if (statusCode === 200 && data) {
                const { code, msg } = JSON.parse(data);
                if (code !== 200) {
                  reject(msg);
                } else {
                  resolve(JSON.parse(data).data);
                }
              } else {
                reject('上传失败');
              }
            },
            fail: error => {
              clearTimeout(timer);
              uni.hideLoading();
              reject(error);
            },
          });
        })
        .catch(error => {
          clearTimeout(timer);
          uni.hideLoading();
          reject(error);
        });
    });
  },
};