handleWant(want: Want, eventHandler: WXApiEventHandler): boolean {
  if (want.parameters && typeof want.parameters[kWantCallerBundleNameKey] === 'string') {
    let callerBundleName = want.parameters[kWantCallerBundleNameKey]
    if (callerBundleName !== kWechatBundleName && !kWechatBundleNameCandidates.includes(callerBundleName)) {
      return false
    }
    let reqWrap = want.parameters[kWantRequestKey]
    if (reqWrap) {
      let req = WXAPIFactory.createReq(reqWrap)
      if (req) {
        eventHandler.onReq(req)
      }
    }

    let respWrap = want.parameters[kWantResponseKey]
    if (respWrap) {
      let resp = WXAPIFactory.createResp(respWrap) //这里会返回undefine
      if (resp) {
        eventHandler.onResp(resp)
      }
    }
    return true
  } else {
    return false
  }
}