我对Angular的摘要周期有基本的了解，但我很困惑为什么这个特殊的方法多次执行。这是我的控制器中的内容：
initializePage();
function initializePage() {
var promise = getPageInfo();
promise.then(function () {
$scope.dataLoading = true;
})
};
function getPageInfo() {
var deferred = $q.defer();
deferred.resolve(lwsService.getLWSpageinfo()
.success(function (data) {
$scope.company = data.ContractorInfo;
$scope.img = base64ArrayBuffer($scope.company.imgCompanyLogo);
$scope.incompleteInfo = data.IncompleteInfo;
$scope.sections = data.QuestionSections;
$scope.verifications = data.Verifications;
$scope.subscriptions = data.SubscriptionInfo;
$scope.user = data.UserInfo;
$scope.ssqstatus = data.SSQStatus;
$scope.ssqdetails = data.SSQDetail[0];
$scope.completionInfo = data.CompletionInfo[0];
$scope.states = data.States;
$scope.countries = data.Countries
$scope.completionInfo.dteDateSSQLastUpdated = convertDate($scope.completionInfo.dteDateSSQLastUpdated);
return deferred.promise;
};
这是我的HTML：
<div ng-app-="myModule" ng-controller="LWSCtrl">
<div cg-busy="waitopr"></div>
<tabset>
<tab heading="Dashboard">
<div ng-repeat="m in majors">
<div ng-controller="LWSCtrl">
<accordion close-others="oneAtATime">
<accordion-group is-open="status.open">
<accordion-heading>
<div style="height:20px">
<span class="pull-left">{{m.MajorName}}</span><i class="pull-right glyphicon" ng-class="{'glyphicon-chevron-up': status.open, 'glyphicon-chevron-down': !status.open}"></i>
</div>
</accordion-heading>
<div class="panel panel-default">
<div class="panel-body">
<table style="border:none; width:100%">
<tr>
<td style="border:none">
<div class="newWidget">
<div class="WidgetTitle" style="width:100%; color:white" ng-style="{'background-color': m.header.WidgetStateBackgroundColor}">{{m.header.WidgetTitleText}}</div>
<div style="padding-left:10px; padding-top:10px">
<ul class="grid-wrap one-whole plain">
<li ng-repeat="item in m.items" class="grid-col one-quarter">
<div ng-switch="item.IsModuleWordingFixed">
<div ng-switch-when="false">
<div ng-switch="item.vchGraphic">
<div ng-switch-when="images/ContractorRankingWidget/green.png">
<span style="display:inline-block; cursor:pointer" data-toggle="modal" data-target="#scoreOverride" ng-value="scoredetails" ng-click="Override(scoredetails)" ng-model="score.details" class="dashboard-button-green">{{item.ModuleCurrentStateText}}</span><span style="display:inline-block; font-weight:bolder; vertical-align:middle"> {{item.ModuleHeaderText}}<br /> </span>
</div>
<div ng-switch-when="images/ContractorRankingWidget/red.png">
<span style="display:inline-block; cursor:pointer" data-toggle="modal" data-target="#scoreOverride" ng-value="scoredetails" ng-click="Override(scoredetails)" ng-model="score.details" class=" dashboard-button-red">{{item.ModuleCurrentStateText}}</span><span style="display:inline-block; font-weight:bolder; vertical-align:middle"> {{item.ModuleHeaderText}}<br /></span>
</div>
<div ng-switch-when="images/ContractorRankingWidget/yellow.png">
<span style="display:inline-block; cursor:pointer" data-toggle="modal" data-target="#scoreOverride" ng-value="scoredetails" ng-click="Override(scoredetails)" ng-model="score.details" class="dashboard-button-yellow">{{item.ModuleCurrentStateText}}</span><span style="display:inline-block; font-weight:bolder; vertical-align:middle"> {{item.ModuleHeaderText}}<br /> </span>
</div>
</div>
</div>
<div ng-switch-when="true">
<span style="display:inline-block; cursor:pointer" data-toggle="modal" data-target="#moduleOverride" ng-value="item" ng-click="moduleOverride(item)"><img ng-src="~/{{item.vchGraphic}}" /></span><span style="display:inline-block;vertical-align:middle"> <span style="font-weight:bolder">{{item.ModuleHeaderText}}</span><br /> {{item.ModuleCalculatedStateText}}</span>
<div> </div>
</div>
</div>
</li>
</ul>
</div>
</div>
</td>
<td style="border:none">
<table style="border:none">
<tr ng-repeat="text in m.Legend">
<td style="border:none" class="LegendImage" ng-style="{'background-color': text.BackGroundColor}"> </td>
<td style="border:none; padding:3px">{{text.WidgetStateText}}<br /></td>
</tr>
<tr style="border:none" ng-if="overridden || moduleoverridden">
<td style="border:none"><img src="~/Images/ContractorRankingWidget/override.png" /></td>
<td style="border:none">Override</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
</div>
</accordion-group>
</accordion>
</div>
</div>
</tab>
<tab heading="SSQ Information">
<div class="panel panel-default">
<div class="panel-body">
<div ng-switch="expired">
<div ng-switch-when="true">
<span style="display:inline-block" class="calendar-background-red"><img src="~/Images/calendar_icon.png" /></span><span style="display:inline-block"><span style="font-weight:bold"> Subscription Expiration Date</span><br /> {{subscriptions.dteExpiresWithGracePeriod}}</span><span class="float-right"></span>
</div>
<div ng-switch-when="false">
<span style="display:inline-block" class="calendar-background-green"><img src="~/Images/calendar_icon.png" /></span><span style="display:inline-block"><span style="font-weight:bold"> Subscription Expiration Date</span><br /> {{subscriptions.dteExpiresWithGracePeriod}}</span><span class="float-right"></span>
</div>
</div>
<br /><br />
<div style="padding-left:10px;padding-right:10px">
<table style="width:100%">
<thead>
<tr style="background-color:#003a5d; color:white">
<th colspan="5">
SSQ Status
</th>
</tr>
<tr style="background-color:#b4001a; color:white">
<th colspan="5">
<div ng-switch="ssqstatus">
<div ng-switch-when="false">
Incomplete
</div>
<div ng-switch-when="true">
Complete
</div>
</div>
</th>
</tr>
<tr style="background-color:#cfe7f1; text-align:center">
<th>SSQ Last Edited By</th>
<th style="text-align:center">Date Edited</th>
<th style="text-align:center">Last Incident QTR Reported</th>
<th style="text-align:center">Number of Employees</th>
<th style="text-align:center">Number of Active Instructors</th>
</tr>
</thead>
<tbody>
<tr>
<td>{{completionInfo.CompletedByUserName}}</td>
<td style="text-align:center">{{completionInfo.dteDateSSQLastUpdated}}</td>
<td style="text-align:center">{{ssqdetails.vchLastCompleteQuarter}}</td>
<td style="text-align:center">{{ssqdetails.intAvgNumEmployees}}</td>
<td style="text-align:center">{{ssqdetails.ActiveInstructorCount}}</td>
</tr>
<tr style="background-color:#cfe7f1">
<td colspan="5">
Reason of Status: {{completionInfo.IncompleteReason}}
</td>
</tr>
<tr ng-repeat="info in incompleteInfo">
<td style="text-decoration:underline;color:blue;text-align:left;cursor:pointer" ng-value="info.QuestionSectionID" ng-click="viewIncomplete(info.QuestionSectionID)">View</td>
<td colspan="4">{{info.vchSectionName}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</tab>
<tab heading="Questionnaire">
<div class="panel panel-default">
<div class="panel-body">
<table style="width:100%; border:dotted 1px">
<thead>
<tr style="background-color:#003a5d; color:white;font-weight:bold">
<th colspan="3" style="padding-left:10px">Questionnaire</th>
</tr>
<tr style="background-color:#cfe7f1">
<th style="padding-left:10px; width:60%">SSQ Section</th>
<th style="text-align:center; width:20%">Completion</th>
<th style="text-align:center; width:20%">Print Selection</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="section in sections" style="border-bottom:dotted 1px">
<td style="text-decoration:underline; color:blue; cursor:pointer" ng-model="section" data-toggle="modal" data-target="#stack1" ng-click="viewSection(section)">{{section.vchSectionName}}</td>
<td style="border-left:dotted 1px">
<div ng-switch="section.bitSectionCompleted">
<div ng-switch-when="true">
<div style="color:green; text-align:center" ng-bind-html="section.bitSectionCompleted | applyMarks | trustedhtml"></div>
</div>
<div ng-switch-when="false">
<div style="color:red; text-align:center" ng-bind-html="section.bitSectionCompleted | applyMarks | trustedhtml"></div>
</div>
</div>
</td>
<td style="text-align:center; border-left:dotted 1px"><input type="checkbox" checklist-model="getSections()" checklist-value="section" ng-change="printSelection(section, checked)" /></td>
</tr>
</tbody>
</table>
<br />
<div cg-busy="loadingSections">@* *@</div>
<div class="float-right"><button type="button" class="btn btn-info" style="width:200px" ng-click="selectAll()">Select All</button> <button type="button" class="btn btn-info" style="width:200px" ng-click="unselectAll()">Unselect All</button></div><br /><br />
<div class="float-right"><button type="button" class="btn btn-primary" style="width:200px" data-toggle="modal" data-dismiss="modal" data-target="#stack4" ng-disabled="dataLoading" ng-click="printSections()">Print
Selected</button></div>
</div>
</div>
</tab>
</tabset>
我尝试使用双冒号运算符，但没有帮助。我很困惑我需要改变什么，或者如何改变它以使其成为幂等的。该服务调用我们的web api（它正在调用大约4次）。它带回了大量数据，因此执行这么多次会拖累我的应用程序进行爬行。任何有关如何改进此代码的帮助都非常感谢。
答案 0 :(得分：2)
您在应用程序的外层有一个控制器实例，但您还在ng-repeat内创建了其他实例：
<div ng-repeat="m in majors">
<div ng-controller="LWSCtrl">
这意味着每次出现m时都会创建一个新的控制器，每当主要值发生变化时，您将创建和/或销毁更多控制器。
这可能不是你想要的，我原以为控制器的一个实例就足够了。