1kb (gzip) 代码搞定开发调试发布，错误监控上报，用户问题定位。

• 支持错误监控和上报
• 支持 vConsole (opens new window) 错误展示
• 支持开发阶段使用 vConsole (opens new window)
• 支持生产环境机关拉取 vConsole (opens new window)
• 支持预埋机关唤起
• 支持url带参数唤起

1. 安装

1.1 npm

npm install alloylever

1.2 yarn

yarn add alloylever

1.3 CDN地址下载下来使用

https://unpkg.com/alloylever (opens new window)

2. 使用指南

import AlloyLever from 'alloylever'
AlloyLever.config({
  cdn:'//s.url.cn/qqun/qun/qqweb/m/qun/confession/js/vconsole.min.js',  // vconsole的CDN地址
  reportUrl: null,  // 错误上报地址
  reportPrefix: 'qun',  // 错误上报msg前缀，一般用于标识业务类型
  reportKey: 'msg', // 错误上报msg前缀的key，用户上报系统接收存储msg
  otherReport: {  // 需要上报的其他信息
    uin: 491862102,
  },
  entry: "#app",  // 请点击这个DOM元素6次召唤vConsole。
  // 你可以通过AlloyLever.entry('#entry2')设置多个机关入口召唤神龙
})

AlloyLever会监听window.onerror并把错误信息保存下来，并且上报到reportUrl，你也可以召唤到vConsole并显示出来错误和相关日志。 或者使用这个CDN也可以: //pub.idqqimg.com/qqun/qun/qqweb/m/qun/confession/js/vconsole.min.js

2.1 入口DOM元素点击6次唤起vConsole

2.2 url唤起vConsole

只要你的页面引用了AlloyLever，你只需要在你的url里带上 vconsole=show 就能显示vConsole面板。如:

// 加载并显示log面板
http://localhost:63342/AlloyLever/index.html?vconsole=show

// 加载但不显示log面板
http://localhost:63342/AlloyLever/index.html?vconsole=hide

// 不加载vConsole脚本
http://localhost:63342/AlloyLever/index.html

这些url的作用很好理解:

• 开发阶段用于调试
• 发给投诉的用户打开带有vconsole=show的url

3. 在线演示

• https://alloyteam.github.io/AlloyLever/ (opens new window)
• https://alloyteam.github.io/AlloyLever/?vconsole=show (opens new window)
• https://alloyteam.github.io/AlloyLever/?vconsole=hide (opens new window)

4. 源码

点击查看 alloy-lever.js 源码

;(function (root, factory) {
  if(typeof exports === 'object' && typeof module === 'object')
      module.exports = factory()
  else if(typeof define === 'function' && define.amd)
      define([], factory)
  else if(typeof exports === 'object')
      exports["AlloyLever"] = factory()
  else
      root["AlloyLever"] = factory()
})(this, function() {
  var AlloyLever = {}
  AlloyLever.settings = {
      cdn:'//s.url.cn/qqun/qun/qqweb/m/qun/confession/js/vconsole.min.js',
      reportUrl: null,
      reportPrefix: '',
      reportKey: 'msg',
      otherReport: null,
      entry: null
  }

  AlloyLever.store = []

  var methodList = ['log', 'info', 'warn', 'debug', 'error'];
  methodList.forEach(function(item) {
      var method = console[item];

      console[item] = function() {
          AlloyLever.store.push({
              logType: item,
              logs: arguments
          });

          method.apply(console, arguments);
      }
  });

  AlloyLever.logs = []
  AlloyLever.config = function(config){
      for(var i in config){
          if(config.hasOwnProperty(i)){
              AlloyLever.settings[i] = config[i]
          }
      }

      if(config.entry){
          window.addEventListener('load', function() {
              AlloyLever.entry(config.entry)
          })
      }

      var parameter = getParameter('vconsole')

      if(parameter) {
          if (parameter === 'show') {
              AlloyLever.vConsole(true)
          } else {
              AlloyLever.vConsole(false)
          }
      }
  }

  AlloyLever.vConsole = function(show){
      loadScript(AlloyLever.settings.cdn, function() {

          //support vconsole3.0
          if (typeof vConsole === 'undefined') {
              window.vConsole = new VConsole({
                  defaultPlugins: ['system', 'network', 'element', 'storage'],
                  maxLogNumber: 5000
              })
          }

          var i = 0,
              len = AlloyLever.store.length

          for (; i < len; i++) {
              var item = AlloyLever.store[i]
              //console[item.type].apply(console, item.logs)
              //prevent twice log
              item.noOrigin = true
              window.vConsole.pluginList.default.printLog(item)
          }

          if(show) {
              try {
                window.vConsole.show()
              } catch (e) {

              }

              window.addEventListener('load', function () {
                window.vConsole.show()
              })
          }
      })
  }

  var parameter = getParameter('vconsole')

  if (parameter) {
    if (parameter === 'show') {
      AlloyLever.vConsole(true)
    } else {
      AlloyLever.vConsole(false)
    }
  }


  AlloyLever.entry = function(selector) {
      var count = 0,
          entry = document.querySelector(selector)
      if(entry) {
          entry.addEventListener('click', function () {
              count++
              if (count > 5) {
                  count = -10000
                  AlloyLever.vConsole(true)
              }
          })
      }
  }

  window.onerror = function(msg, url, line, col, error) {
      var newMsg = msg

      if (error && error.stack) {
          newMsg = processStackMsg(error)
      }

      if (isOBJByType(newMsg, "Event")) {
          newMsg += newMsg.type ?
              ("--" + newMsg.type + "--" + (newMsg.target ?
                  (newMsg.target.tagName + "::" + newMsg.target.src) : "")) : ""
      }

      newMsg = (newMsg + "" || "").substr(0,500)

      AlloyLever.logs.push({
          msg: newMsg,
          target: url,
          rowNum: line,
          colNum: col
      })

      if (msg.toLowerCase().indexOf('script error') > -1) {
          console.error('Script Error: See Browser Console for Detail')
      } else {
          console.error(newMsg)
      }

      var ss = AlloyLever.settings
      if(ss.reportUrl) {
          var src = ss.reportUrl + (ss.reportUrl.indexOf('?')>-1?'&':'?') + ss.reportKey + '='+( ss.reportPrefix?('[' + ss.reportPrefix +']'):'')+ newMsg+'&t='+new Date().getTime()
          if(ss.otherReport) {
              for (var i in ss.otherReport) {
                  if (ss.otherReport.hasOwnProperty(i)) {
                      src += '&' + i + '=' + ss.otherReport[i]
                  }
              }
          }
          new Image().src = src
      }
  }



  function loadScript(src, callback){
      var s,
          r,
          t
      r = false
      s = document.createElement('script')
      s.type = 'text/javascript'
      s.src = src
      s.onload = s.onreadystatechange = function() {
          //console.log( this.readyState ); //uncomment this line to see which ready states are called.
          if ( !r && (!this.readyState || this.readyState == 'complete') )
          {
              r = true
              callback()
          }
      }
      t = document.getElementsByTagName('script')[0]
      t.parentNode.insertBefore(s, t)
  }

  function getParameter(n) {
      var m = window.location.hash.match(new RegExp('(?:#|&)' + n + '=([^&]*)(&|$)')),
          result = !m ? '' : decodeURIComponent(m[1])
      return result ||getParameterByName(n)
  }

  function getParameterByName(name, url) {
      if (!url) url = window.location.href
      name = name.replace(/[\[\]]/g, "\\$&")
      var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
          results = regex.exec(url)
      if (!results) return null
      if (!results[2]) return ''
      return decodeURIComponent(results[2].replace(/\+/g, " "))
  }

  function  isOBJByType(o, type) {
      return Object.prototype.toString.call(o) === "[object " + (type || "Object") + "]"
  }

  function processStackMsg (error) {
      var stack = error.stack
          .replace(/\n/gi, "")
          .split(/\bat\b/)
          .slice(0, 9)
          .join("@")
          .replace(/\?[^:]+/gi, "")
      var msg = error.toString()
      if (stack.indexOf(msg) < 0) {
          stack = msg + "@" + stack
      }
      return stack
  }

  function getCookie(name){
      var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)")

      if(arr=document.cookie.match(reg))
          return unescape(arr[2])
      else
          return null
  }

  AlloyLever.getCookie = getCookie
  AlloyLever.getParameter= getParameter
  AlloyLever.loadScript = loadScript

  return AlloyLever
});