javascript - Jquery 在 vi​​sualforce 中没有按预期工作

Question

我正在编写一个visualforce，我在其中使用动态组件我的visualforce代码是

<apex:page title="Salesforce SOQL Offset Example Using Visualforce" standardStylesheets="false" controller="dynamic_visualforce_with_soql_offset" sidebar="false" readOnly="true" cache="false" showHeader="false" >

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>

<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.1/jquery-ui.min.js"></script>

<script type="text/javascript">
$(function(){

$("[id$=prev]").click(function(){alert('Hello World');});

});
</script>


<apex:sectionHeader subtitle="SOQL Offset Example w/Dynamic Page Buttons" title="Square Root Table"/>

<apex:form >

<apex:pageBlock >   

    <apex:actionFunction action="{!refreshGrid}" name="queryByPage" reRender="myPanel,myButtons" >
        <apex:param name="firstParam" assignTo="{!selectedPage}" value="" />
    </apex:actionFunction>

    <apex:dynamicComponent componentValue="{!myCommandButtons}"/>        

    <apex:pageBlockSection title="Numbers and their Square Roots (Total List Size: {!total_size})" collapsible="false">

    <apex:outputPanel id="myPanel">

    <apex:pageMessages id="theMessages" />

    <apex:pageBlockTable value="{!numbers}" var="n" align="center">

        <apex:column value="{!n.Id}" />

        <apex:column value="{!n.Name}" />

        <apex:facet name="footer">Showing Page # {!pageNumber} of {!totalPages}</apex:facet>

    </apex:pageBlockTable>

    </apex:outputPanel>

    </apex:pageBlockSection>    

</apex:pageBlock>

</apex:form>

</apex:page>

用于生成动态分量的段是

public Component.Apex.pageBlockButtons getMyCommandButtons() {

        //the reRender attribute is a set NOT a string
        Set<string> theSet = new Set<string>();
        theSet.add('myPanel');
        theSet.add('myButtons');

        integer totalPages;
        if (math.mod(total_size, list_size) > 0) {
            totalPages = total_size/list_size + 1;
        } else {
            totalPages = (total_size/list_size);
        }

        integer currentPage;        
        if (selectedPage == '0') {
            currentPage = counter/list_size + 1;
        } else {
            currentPage = integer.valueOf(selectedPage);
        }

        Component.Apex.pageBlockButtons pbButtons = new Component.Apex.pageBlockButtons();        
        pbButtons.location = 'top';
        pbButtons.id = 'myPBButtons';

        Component.Apex.outputPanel opPanel = new Component.Apex.outputPanel();
        opPanel.id = 'myButtons';

        //the Previous button will alway be displayed
        Component.Apex.commandButton b1 = new Component.Apex.commandButton();
      b1.id = 'prev';
        b1.expressions.action = '{!Previous}';
        b1.title = 'Previous';
        b1.value = 'Previous';
        b1.expressions.disabled = '{!disablePrevious}';        
        b1.reRender = theSet;
        opPanel.childComponents.add(b1);        

        for (integer i=0;i<totalPages;i++) {
            Component.Apex.commandButton btn = new Component.Apex.commandButton();

            if (i+1==1) {
                btn.title = 'First Page';
                btn.value = 'First Page';
                btn.rendered = true;                                        
            } else if (i+1==totalPages) {
                btn.title = 'Last Page';
                btn.value = 'Last Page';
                btn.rendered = true;                            
            } else {
                btn.title = 'Page ' + string.valueOf(i+1) + ' ';
                btn.value = ' ' + string.valueOf(i+1) + ' ';
                btn.rendered = false;             
            }

            if (   (i+1 <= 5 && currentPage < 5)
                || (i+1 >= totalPages-4 && currentPage > totalPages-4)
                || (i+1 >= currentPage-2 && i+1 <= currentPage+2))
            {
                btn.rendered = true;
            }

            if (i+1==currentPage) {
                btn.disabled = true; 
                btn.style = 'color:blue;';
            }  

            btn.onclick = 'queryByPage(\''+string.valueOf(i+1)+'\');return false;';

            opPanel.childComponents.add(btn);

            if (i+1 == 1 || i+1 == totalPages-1) { //put text after page 1 and before last page
                Component.Apex.outputText text = new Component.Apex.outputText();
                text.value = '...';        
                opPanel.childComponents.add(text);
            } 

        }

        //the Next button will alway be displayed
        Component.Apex.commandButton b2 = new Component.Apex.commandButton();
        b2.expressions.action = '{!Next}';
        b2.title = 'Next';
        b2.value = 'Next';
        b2.expressions.disabled = '{!disableNext}';        
        b2.reRender = theSet;
        opPanel.childComponents.add(b2);

        //add all buttons as children of the outputPanel                
        pbButtons.childComponents.add(opPanel);  

        return pbButtons;

    }    

但是当我尝试单击上一个按钮时，它没有显示我期望从 jquery 函数获得的警报，并且 html 代码是

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>

<head><script src="/faces/a4j/g/3_3_3.Finalorg.ajax4jsf.javascript.AjaxScript?rel=1361483299000" type="text/javascript"></script><link class="component" href="/faces/a4j/s/3_3_3.Finalorg/richfaces/renderkit/html/css/table.xcss/DATB/eAEz2rRkV-jyGdIAEoQD8g__" rel="stylesheet" type="text/css" /><script src="/jslibrary/1360895802000/sfdc/JiffyStubs.js"></script><script src="/static/101812/js/functions.js" type="text/javascript"></script><script src="/jslibrary/1360895802000/sfdc/main.js" type="text/javascript"></script><script src="/jslibrary/labels/1360895802000/en_US.js" type="text/javascript"></script><script src="/static/101812/desktop/desktopAjax.js" type="text/javascript"></script><script src="/static/101812/js/picklist.js" type="text/javascript"></script><script src="/jslibrary/1360895802000/sfdc/VFState.js" type="text/javascript"></script></head><script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>

<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.1/jquery-ui.min.js"></script>

<script type="text/javascript">
$(function(){

$("[id$=prev]").click(function(){alert('Hello World');});

});
</script><script> if(!window.sfdcPage){window.sfdcPage = new ApexPage();}
UserContext.initialize({"networkId":"","locale":"en_US","labelLastModified":"1360895802000","isDefaultNetwork":true,"today":"2/22/2013 10:38 PM","timeFormat":"h:mm a","userPreferences":[{"index":112,"name":"HideInlineEditSplash","value":false},{"index":114,"name":"OverrideTaskSendNotification","value":false},{"index":115,"name":"DefaultTaskSendNotification","value":false},{"index":119,"name":"HideUserLayoutStdFieldInfo","value":false},{"index":116,"name":"HideRPPWarning","value":false},{"index":87,"name":"HideInlineSchedulingSplash","value":false},{"index":88,"name":"HideCRUCNotification","value":false},{"index":89,"name":"HideNewPLESplash","value":false},{"index":90,"name":"HideNewPLEWarnIE6","value":false},{"index":122,"name":"HideOverrideSharingMessage","value":false},{"index":91,"name":"HideProfileILEWarn","value":false},{"index":93,"name":"HideProfileElvVideo","value":false},{"index":97,"name":"ShowPicklistEditSplash","value":false},{"index":92,"name":"HideDataCategorySplash","value":false},{"index":128,"name":"ShowDealView","value":false},{"index":129,"name":"HideDealViewGuidedTour","value":false},{"index":132,"name":"HideKnowledgeFirstTimeSetupMsg","value":false},{"index":104,"name":"DefaultOffEntityPermsMsg","value":false},{"index":135,"name":"HideNewCsnSplash","value":false},{"index":101,"name":"HideBrowserWarning","value":false},{"index":139,"name":"HideDashboardBuilderGuidedTour","value":false},{"index":140,"name":"HideSchedulingGuidedTour","value":false},{"index":180,"name":"HideReportBuilderGuidedTour","value":false},{"index":183,"name":"HideAssociationQueueCallout","value":false},{"index":194,"name":"HideQTEBanner","value":false},{"index":193,"name":"HideChatterOnboardingSplash","value":false},{"index":195,"name":"HideSecondChatterOnboardingSplash","value":false},{"index":270,"name":"HideIDEGuidedTour","value":false},{"index":282,"name":"HideQueryToolGuidedTour","value":false},{"index":196,"name":"HideCSIGuidedTour","value":true},{"index":271,"name":"HideFewmetGuidedTour","value":false},{"index":272,"name":"HideEditorGuidedTour","value":false},{"index":205,"name":"HideApexTestGuidedTour","value":false},{"index":206,"name":"HideSetupProfileHeaderTour","value":false},{"index":207,"name":"HideSetupProfileObjectsAndTabsTour","value":false},{"index":213,"name":"DefaultOffArticleTypeEntityPermMsg","value":false},{"index":214,"name":"HideSelfInfluenceGetStarted","value":false},{"index":215,"name":"HideOtherInfluenceGetStarted","value":false},{"index":216,"name":"HideFeedToggleGuidedTour","value":false},{"index":268,"name":"ShowChatterTab178GuidedTour","value":false},{"index":275,"name":"HidePeopleTabDeprecationMsg","value":false},{"index":276,"name":"HideGroupTabDeprecationMsg","value":false},{"index":222,"name":"TouchExternalLinkReminderSuppression","value":false},{"index":224,"name":"HideUnifiedSearchGuidedTour","value":false},{"index":226,"name":"ShowDevContextMenu","value":true},{"index":227,"name":"HideWhatRecommenderForActivityQueues","value":false},{"index":228,"name":"HideLiveAgentFirstTimeSetupMsg","value":false},{"index":232,"name":"HideGroupAllowsGuestsMsgOnMemberWidget","value":false},{"index":233,"name":"HideGroupAllowsGuestsMsg","value":false},{"index":234,"name":"HideWhatAreGuestsMsg","value":false},{"index":235,"name":"HideNowAllowGuestsMsg","value":false},{"index":236,"name":"HideSocialAccountsAndContactsGuidedTour","value":true},{"index":237,"name":"HideAnalyticsHomeGuidedTour","value":false},{"index":238,"name":"ShowQuickCreateGuidedTour","value":false},{"index":245,"name":"HideFilePageGuidedTour","value":false},{"index":250,"name":"HideForecastingGuidedTour","value":false},{"index":242,"name":"TouchHideOptoutHover","value":false},{"index":251,"name":"HideBucketFieldGuide","value":false},{"index":263,"name":"HideSmartSearchCallOut","value":false},{"index":265,"name":"HideSocialProfilesKloutSplashScreen","value":false},{"index":273,"name":"ShowForecastingQuotaAttainment","value":false},{"index":280,"name":"HideForecastingQuotaColumn","value":false},{"index":301,"name":"HideManyWhoGuidedTour","value":false},{"index":284,"name":"HideExternalSharingModelGuidedTour","value":false},{"index":298,"name":"HideFileSyncBannerMsg","value":false},{"index":299,"name":"HideTestConsoleGuidedTour","value":false},{"index":300,"name":"HideNetworkSetupOverlayGettingStarted","value":false},{"index":302,"name":"HideManyWhoInlineEditTip","value":false},{"index":303,"name":"HideSetupV2WelcomeMessage","value":false}],"orgPreferences":[{"index":257,"name":"TabOrganizer","value":true}],"startOfWeek":"1","isAccessibleMode":false,"ampm":["AM","PM"],"renderMode":"RETRO","userId":"00590000001MbZn","dateTimeFormat":"M/d/yyyy h:mm a","dateFormat":"M/d/yyyy","uiSkin":"Theme3","language":"en_US","siteUrlPrefix":""});
</script><div class="bPageTitle"><div class="ptBody secondaryPalette brandSecondaryBrd"><div class="content"><img src="/s.gif" class="pageTitleIcon" title="" alt="" /><h1 class="pageType">Square Root Table</h1><span class="titleSeparatingColon">:</span><h2 class="pageDescription">SOQL Offset Example w/Dynamic Page Buttons</h2><div class="blank"></div></div></div></div>
<form id="j_id0:j_id3" name="j_id0:j_id3" method="post" action="https://c.ap1.visual.force.com/apex/OpportunityManagement" enctype="application/x-www-form-urlencoded">
<input type="hidden" name="j_id0:j_id3" value="j_id0:j_id3" />
<div class="apexp"><div id="j_id0:j_id3:j_id4" class="bPageBlock brandSecondaryBrd apexDefaultPageBlock secondaryPalette"><div class="pbHeader"><table border="0" cellpadding="0" cellspacing="0"><tr><td class="pbTitle">&nbsp;</td><td id="j_id0:j_id3:j_id4:myPBButtons" class="pbButton "><span id="j_id0:j_id3:j_id4:myPBButtons:myButtons"><input id="j_id0:j_id3:j_id4:myPBButtons:prev" name="j_id0:j_id3:j_id4:myPBButtons:prev" onclick="return false;" value="Previous" disabled="disabled" title="Previous" type="button" /><input type="submit" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_0" value="First Page" onclick="queryByPage('1');return false;" style="color:blue;" title="First Page" disabled="disabled" />...<input type="submit" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_2" value=" 2 " onclick="queryByPage('2');return false;" title="Page 2 " /><input type="submit" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_3" value=" 3 " onclick="queryByPage('3');return false;" title="Page 3 " /><input type="submit" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_4" value=" 4 " onclick="queryByPage('4');return false;" title="Page 4 " /><input type="submit" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_5" value=" 5 " onclick="queryByPage('5');return false;" title="Page 5 " />...<input type="submit" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_9" value="Last Page" onclick="queryByPage('8');return false;" title="Last Page" /><input id="j_id0:j_id3:j_id4:myPBButtons:j_id7_10" name="j_id0:j_id3:j_id4:myPBButtons:j_id7_10" onclick="A4J.AJAX.Submit('j_id0:j_id3',event,{'similarityGroupingId':'j_id0:j_id3:j_id4:myPBButtons:j_id7_10','parameters':{'j_id0:j_id3:j_id4:myPBButtons:j_id7_10':'j_id0:j_id3:j_id4:myPBButtons:j_id7_10'} } );return false;" value="Next" title="Next" type="button" /></span></td></tr></table></div><div class="pbBody"><script id="j_id0:j_id3:j_id4:j_id5" type="text/javascript">queryByPage=function(firstParam){A4J.AJAX.Submit('j_id0:j_id3',null,{'similarityGroupingId':'j_id0:j_id3:j_id4:j_id5','parameters':{'firstParam':(typeof firstParam!='undefined'&&firstParam!=null)?firstParam:'','j_id0:j_id3:j_id4:j_id5':'j_id0:j_id3:j_id4:j_id5'} } )};
</script><div id="j_id0:j_id3:j_id4:j_id8"><div class="pbSubheader brandTertiaryBgr first tertiaryPalette"><h3>Numbers and their Square Roots (Total List Size: 37)</h3></div><div class="pbSubsection"><table class="detailList" border="0" cellpadding="0" cellspacing="0"><tr><td class="dataCol  first  last " colSpan="2"><span id="j_id0:j_id3:j_id4:j_id8:myPanel"><span id="j_id0:j_id3:j_id4:j_id8:theMessages"></span><table class="list " id="j_id0:j_id3:j_id4:j_id8:j_id35" align="center" border="0" cellpadding="0" cellspacing="0"><colgroup span="2"></colgroup><thead class="rich-table-thead"><tr class="headerRow "><th class="headerRow  " scope="col" colspan="1" id="j_id0:j_id3:j_id4:j_id8:j_id35:j_id36header"><div id="j_id0:j_id3:j_id4:j_id8:j_id35:j_id36header:sortDiv">Opportunity ID</div></th><th class="headerRow  " scope="col" colspan="1" id="j_id0:j_id3:j_id4:j_id8:j_id35:j_id37header"><div id="j_id0:j_id3:j_id4:j_id8:j_id35:j_id37header:sortDiv">Opportunity Name</div></th></tr></thead><tfoot><tr class="  "><td class="  " colspan="2" scope="colgroup">Showing Page # 1 of 8</td></tr></tfoot><tbody id="j_id0:j_id3:j_id4:j_id8:j_id35:tb"><tr class="dataRow even  first " onmouseover="if (window.hiOn){hiOn(this);} " onmouseout="if (window.hiOff){hiOff(this);} " onBlur="if (window.hiOff){hiOff(this);}" onFocus="if (window.hiOn){hiOn(this);}"><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:0:j_id36" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:0:j_id40">00690000009t53P</span></td><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:0:j_id37" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:0:j_id41">Burlington Textiles Weaving Plant Generator</span></td></tr><tr class=" dataRow odd " onmouseover="if (window.hiOn){hiOn(this);} " onmouseout="if (window.hiOff){hiOff(this);} " onBlur="if (window.hiOff){hiOff(this);}" onFocus="if (window.hiOn){hiOn(this);}"><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:1:j_id36" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:1:j_id42">00690000009t532</span></td><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:1:j_id37" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:1:j_id43">Dickenson Mobile Generators</span></td></tr><tr class="dataRow even " onmouseover="if (window.hiOn){hiOn(this);} " onmouseout="if (window.hiOff){hiOff(this);} " onBlur="if (window.hiOff){hiOff(this);}" onFocus="if (window.hiOn){hiOn(this);}"><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:2:j_id36" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:2:j_id44">00690000009t53A</span></td><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:2:j_id37" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:2:j_id45">Edge Emergency Generator</span></td></tr><tr class=" dataRow odd " onmouseover="if (window.hiOn){hiOn(this);} " onmouseout="if (window.hiOff){hiOff(this);} " onBlur="if (window.hiOff){hiOff(this);}" onFocus="if (window.hiOn){hiOn(this);}"><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:3:j_id36" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:3:j_id46">00690000009t53W</span></td><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:3:j_id37" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:3:j_id47">Edge Emergency Generator</span></td></tr><tr class="dataRow even  last " onmouseover="if (window.hiOn){hiOn(this);} " onmouseout="if (window.hiOff){hiOff(this);} " onBlur="if (window.hiOff){hiOff(this);}" onFocus="if (window.hiOn){hiOn(this);}"><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:4:j_id36" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:4:j_id48">00690000009t53H</span></td><td class="dataCell  " id="j_id0:j_id3:j_id4:j_id8:j_id35:4:j_id37" colspan="1"><span id="j_id0:j_id3:j_id4:j_id8:j_id35:4:j_id49">Edge Installation</span></td></tr></tbody></table></span></td><td class="labelCol empty">&nbsp;</td><td class="dataCol empty">&nbsp;</td></tr></table></div></div></div><div class="pbFooter secondaryPalette"><div class="bg"></div></div></div></div><div id="j_id0:j_id3:j_id50"></div>
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请任何人告诉为什么它在按下上一个按钮时没有显示警报

Answer 1

force.com 使用了一些 js-library，比如prototype.js，它可能会与 jQuery 发生冲突，为了避免这种情况，你可以阅读这篇文章http://api.jquery.com/jQuery.noConflict/

并使用以下技巧

<script>
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$j(function(){
    $j("[id$=prev]").click(function(){alert('Hello World');});

});

</script>