在并行执行时,如何对所有浏览器只执行一次查询

你可以试试这个 beforeLaunch() 量角器配置js。

  /**
   * A callback function called once configs are read but before any
   * environment setup. This will only run once, and before onPrepare.
   *
   * You can specify a file containing code to run by setting beforeLaunch to
   * the filename string.
   *
   * At this point, global variable 'protractor' object will NOT be set up,
   * and globals from the test framework will NOT be available. The main
   * purpose of this function should be to bring up test dependencies.
   */
  beforeLaunch?: () => void;

  exports.config = {

      multiCapabilities: [],          

      specs:[],

      beforeLaunch: function(){
           // execute query at here
      }
      ...
  };