wutian-miniprogram/src/components/uploadFile/index.ts

const app = getApp<IAppOption>();

// pages/story/a.ts
Component({
  /**
   * 组件的属性列表
   */
  properties: {
    chooseAvatar: {
      type: Boolean,
      value: false,
    },
  },

  /**
   * 组件的初始数据
   */
  data: {},

  /**
   * 组件的方法列表
   */
  methods: {
    GetExtensionFileName(pathfilename) {
      const reg = /(\\+)/g;
      const pString = pathfilename.replace(reg, "#"); //用正则表达式来将\或\\替换成#
      const arr = pString.split("#"); // 以“#”为分隔符，将字符分解为数组 例如 D Program Files bg.png
      const lastString = arr[arr.length - 1]; //取最后一个字符
      const arr2 = lastString.split("."); //   再以"."作为分隔符
      return arr2[arr2.length - 1]; //将后缀名返回出来
    },
    handleAfterRead(e) {
      this.uploadFile(e.detail.file).then((res) => {
        this.triggerEvent("file", res as object);
      });
    },
    handleChooseAvatar(e) {
      this.uploadFile({
        fileType: "image",
        tempFilePath: e.detail.avatarUrl,
        size: 0,
      }).then((res) => {
        this.triggerEvent("file", res as object);
      });
    },
    uploadFile(item) {
      wx.showLoading({
        title: "正在上传",
      });
      return new Promise((resolve, reject) => {
        let url = `${app.globalData.upFileUrl}?r=file-service/upload-`;
        if (item.fileType === "image") {
          url += "img";
        } else if (item.fileType === "video") {
          url += "video";
        } else if (item.fileType === "audio") {
          url += "audio";
        } else {
          url += "doc";
        }
        wx.uploadFile({
          filePath: item.tempFilePath,
          name: "file",
          url,
          success: (res) => {
            wx.hideLoading();
            const data = JSON.parse(res.data);
            const expandJson = {
              fileId: "",
              name: data.data.Url,
              size: (item.size / 1024).toFixed(2),
              fileUrl: data.data.Url,
              suffix: this.GetExtensionFileName(data.data.Url),
              type: item.fileType,
              imgUrl: "",
            };
            if (item.fileType === "image") {
              expandJson.imgUrl = data.data.Url;
            }
            if (item.fileType === "video") {
              expandJson.imgUrl = data.data.SnapshotUrl;
            }
            resolve(expandJson);
          },
          fail() {
            wx.hideLoading();
            reject(new Error("上传失败"));
          },
        });
      });
    },
  },
});

export {};