UserclassFront/src/utils/index.js

export default {
  goodTime (str) {
    let now = new Date().getTime()
    let oldTime = new Date(str).getTime()
    let difference = now - oldTime
    let result = ''
    let minute = 1000 * 60
    let hour = minute * 60
    let day = hour * 24
    let month = day * 30
    let year = month * 12
    let _year = difference / year
    let _month = difference / month
    let _week = difference / (7 * day)
    let _day = difference / day
    let _hour = difference / hour
    let _min = difference / minute

    if (_year >= 1) {
      result = '发表于 ' + ~~(_year) + ' 年前'
    } else if (_month >= 1) {
      result = '发表于 ' + ~~(_month) + ' 个月前'
    } else if (_week >= 1) {
      result = '发表于 ' + ~~(_week) + ' 周前'
    } else if (_day >= 1) {
      result = '发表于 ' + ~~(_day) + ' 天前'
    } else if (_hour >= 1) {
      result = '发表于 ' + ~~(_hour) + ' 个小时前'
    } else if (_min >= 1) {
      result = '发表于 ' + ~~(_min) + ' 分钟前'
    } else {
      result = '刚刚'
    }
    return result
  },
  /**
 * iView2 Tree 公用方法：选中指定ID节点，自动展开所有父节点
 * @param {Array} treeData 树形原始数据
 * @param {Number|String} targetId 要选中的节点id
 * @param {Object} vueThis 当前Vue组件this实例
 */
  selectTreeNodeById(treeData, targetId, vueThis) {
    const loop = function (nodes, parentNode) {
      for (let node of nodes) {
        // 清空所有节点选中状态
        node.selected = false
  
        if (node.id === targetId) {
          // 目标节点设为选中
          node.selected = true
          let p = parentNode
          // 逐层向上展开父节点
          while (p) {
            p.expand = true
            p = p._parent
          }
          return true
        }
  
        if (node.children && node.children.length) {
          // 绑定父节点引用
          node.children.forEach(child => child._parent = node)
          const res = loop(node.children, node)
          if (res) return true
        }
      }
      return false
    }
  
    loop(treeData, null)
  },
  strToHexCharCode(_str) {
    if (_str === "") return "";
    var hexCharCode = [];
    for (var i = 0; i < _str.length; i++) {
        var str = _str.charCodeAt(i).toString(16);
        if (_str.length == 1) str += "0" + _str;
        hexCharCode.push(str);
    }
    return hexCharCode.join("");
},
  dateFormat(_date,fmt){
    var date=new Date(_date);
    var o = {
        "M+": date.getMonth() + 1, //月份 
        "d+": date.getDate(), //日 
        "H+": date.getHours(), //小时 
        "m+": date.getMinutes(), //分 
        "s+": date.getSeconds(), //秒 
        "q+": Math.floor((date.getMonth() + 3) / 3), //季度 
        "S": date.getMilliseconds() //毫秒 
    };
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
    if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
  },
  dataFilter(_key,arry) {
    for (var key in arry) {
      if (arry.hasOwnProperty(key)) {
        var element = arry[key];
        if(element.k==_key)
          return element.v;
      }
    }
    return '';
  },
  myUpload(url,fileObj,data,callback){
    var FileController ="/api"+ url;                    // 接收上传文件的后台地址
    if (!fileObj ||fileObj.length==0) {
       console.error('请选择上传文件'); return;
    }
    // FormData 对象
    var form = new FormData();
    //表单数据
    for (let key in data) {
       const element = data[key];
       form.append(key,element);
   }
    form.append("file", fileObj);// 文件对象
    // XMLHttpRequest 对象
    var xhr = new XMLHttpRequest();
    xhr.open("post", FileController, true);
    xhr.onload = function (resp) {
        var obj = JSON.parse(resp.currentTarget.response);
        if(callback)
          callback(obj);
    };
    xhr.send(form);
  },
  comSetting(){//公共插件基础配置，如有需要，覆盖即可
    const tree={
      view: {
        dblClickExpand: false,
        showIcon: false,
      },
      check: {
        enable: false,
      },
      callback:{}
    }
    return {
      tree:tree,
    }
  },
  comSetting1(){//公共插件基础配置，如有需要，覆盖即可
    const tree={
      view: {
        dblClickExpand: false,
        showIcon: false,
      },
      edit: {
				enable: true,
				showRemoveBtn: false,
        showRenameBtn: false,
        drag: { prev: true, next: true,inner: false}
      },
      check: {
        enable: false
    },
			data: {
				simpleData: {
					enable: true
				}
			},
			callback: {

			}
    }
    return {
      tree:tree,
    }
  },

  openFistNode(_zNodes){//展开一级节点
      if(_zNodes&&_zNodes.length>0){
          for (var key in _zNodes) {
              if (_zNodes.hasOwnProperty(key)) {
                  var element = _zNodes[key];
                  element.open=true;
              }
          }
      }
      else{
          _zNodes.open=true;
      }
    return _zNodes;
  },
  editorFormat(val){//富文本提取文字
    return  val.replace(/<[^>]+>/g, "");
  },
  mathFormat(val,number=2){//小数点截取，默认取2位
    if(isNaN(val))return 0;
    var num=Math.pow(10,number);
    return Math.floor(val*num)/num;
  },
  fileSize(size){//返回文件大小
    if(!size) return '';
    if(size/1024<1024){
      size=Math.ceil(size/1024);
      return size+'KB';
    }else if(size/(1024*1024)<1024){
      size=Math.ceil(size/(1024*1024)*100)/100;
      return size+'MB';
    }else if(size/(1024*1024*1024)<1024){
      size=Math.ceil(size/(1024*1024*1024)*100)/100;
      return size+'GB';
    }
  },
  handleValidate(_this,name){//表单验证
    let isValid = false;
    _this.$refs[name].validate(function (valid) {
      if (valid) {
        isValid = true;
      } else {
        // _this.$Message.info('表单验证失败!');
        
        _this.$Message.info('请填写红色星号内容！');
      }
    })
    return isValid;
  },
  handleReset(_this,resetName,name) {//表单重置
    if(name&&_this.isModal&&_this.isModal[name]) _this.isModal[name] = false;
    if (resetName) {
      _this.$refs[resetName].resetFields();
    }
  },
  downFile(id) {//下载文件
    location.href = APIConfig.Base.FileDown + '?id=' + id;
  },

  localStorage:{
    get(key){
     return localStorage.getItem(key);
    },
    set(key,val){
      localStorage.setItem(key,val);
    }
  }



  
}