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上傳圖片

mounted: function () {
 var upload = document.getElementById("btnUpload");
 var avatar = document.getElementById("avatar");
 upload.onclick =function(){
  avatar.click(); //注意IE的兼容性
 };
}

let multer=require('multer');
let storage = multer.diskStorage({
  //設(shè)置上傳后文件路徑，uploads文件夾會(huì)自動(dòng)創(chuàng)建。
  destination: function (req, file, cb) {
    cb(null, './public/uploads')
  },
  //給上傳文件重命名，獲取添加后綴名
  filename: function (req, file, cb) {
    let fileFormat = (file.originalname).split(".");
    cb(null, file.fieldname + '-' + Date.now() + "." + fileFormat[fileFormat.length - 1]);
  }
});
//添加配置文件到multer對象。
let upload = multer({
  storage: storage
});
module.exports = upload;

var muilter = require('./upFile.js');
//multer有single()中的名稱必須是表單上傳字段的name名稱。
var upload=muilter.single('file');
function dataInput(req, res) {
  upload(req, res, function (err) {
    //添加錯(cuò)誤處理
    if (err) {
      return console.log(err);
    }
    //文件信息在req.file或者req.files中顯示。
    let photoPath = req.file.path;
    photoPath = photoPath.replace(/public/,"");//將文件路徑中的public\去掉，否則會(huì)和靜態(tài)資源配置沖突
    //將photoPath存入數(shù)據(jù)庫即可
    console.log(photoPath);
    res.send(photoPath);
  });
}
module.exports = {
  dataInput
};

upload: function (e) {
    var that = this;
    let formData = new window.FormData();
    let file = e.target.files[0];
    formData.append('file',file);//通過append向form對象添加數(shù)據(jù)
    //利用split切割，拿到上傳文件的格式
    var src = file.name,
     formart = src.split(".")[1];
    //使用if判斷上傳文件格式是否符合
    if (formart == "jpg" || formart == "png" ||
     formart == "docx" || formart == "txt" ||
     formart == "ppt" || formart == "xlsx" ||
     formart == "zip" || formart == "rar" ||
     formart == "doc") {
     //只有滿足以上格式時(shí)，才會(huì)觸發(fā)ajax請求
     this.$axios.post(this.$api.personalCenter.upFile,formData).then(function (res) {
      that.upFileData = res.data;
     }).then(function (res) {
      var params = {
       photos_url: that.upFileData,
       photo_des: ''
      };
//      console.log(params.photos_url,'photos_url')
      that.$axios.post(that.$api.personalCenter.wallAdd,qs.stringify(params)).then(function (res) {
       console.log(res.data);
       that.$options.methods.imgList.bind(that)();
      }).catch(function (err) {
       console.log(err);
       console.log("請求出錯(cuò)");
      })
     })
    } else {
     alert("文件格式不支持上傳");
    }
}