Ajax 数据加载的实现

<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="ProgId" content="Word.Document"> <meta name="Generator" content="Microsoft Word 11"> <meta name="Originator" content="Microsoft Word 11"> <link rel="File-List" href="file:///C:%5CDOCUME%7E1%5CADMINI%7E1%5CLOCALS%7E1%5CTemp%5Cmsohtml1%5C01%5Cclip_filelist.xml"> <smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"></smarttagtype><smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="chmetcnv" downloadurl=""></smarttagtype><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:DrawingGridVerticalSpacing>7.8 磅</w:DrawingGridVerticalSpacing> <w:DisplayHorizontalDrawingGridEvery>0</w:DisplayHorizontalDrawingGridEvery> <w:DisplayVerticalDrawingGridEvery>2</w:DisplayVerticalDrawingGridEvery> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:SpaceForUL/> <w:BalanceSingleByteDoubleByteWidth/> <w:DoNotLeaveBackslashAlone/> <w:ULTrailSpace/> <w:DoNotExpandShiftReturn/> <w:AdjustLineHeightInTable/> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> <w:UseFELayout/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style> st1/:*{behavior:url(#ieooui) } </style> <![endif]--><style> <!-- /* Font Definitions */ @font-face {font-family:宋体; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:SimSun; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} @font-face {font-family:"/@宋体"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:宋体; mso-font-kerning:1.0pt;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;} @page Section1 {size:595.3pt 841.9pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:42.55pt; mso-footer-margin:49.6pt; mso-paper-source:0; layout-grid:15.6pt;} div.Section1 {page:Section1;} --> </style> <!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:普通表格; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]-->


HTML文件如下:

<!DOCTYPE HTML PUBLIC "-//W<chmetcnv unitname="C" sourcevalue="3" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on">3C</chmetcnv>//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

<TITLE> New Document </TITLE>

<<place w:st="on">META</place> NAME="Keywords" CONTENT="">

<<place w:st="on">META</place> NAME="Description" CONTENT="">

<STYLE>

.gLoading{position:absolute;padding:2px 9px 2px 6px;border-width:1px;border-style:solid;background-color:#FFFF88;font-size:12px;display:block; }

</STYLE>

</HEAD>

<BODY class="gb" lang="zh" style="overflow-y:auto">

<div class="gLoading" style="top:34px; right:10px; z-index:60" id=" ajaxLoadingMsg "><img src="http://p.mail.163.com/js31style/lib/0807161641/163blue/loading_16x16.gif" align="absmiddle"/>&nbsp;<span id="spnMsg">数据加载中,请稍候...</span></div>

</BODY>

</HTML>

Ajax 实现部分如下:

createXmlHttp();

var naviSelected = document.all.naviListSelect[document.all.naviListSelect.selectedIndex];

document.all.ajaxLoadingMsg.style.display='block';

xmlHttp.open("GET", "<%=request.getContextPath() %>/search.action");xmlHttp.onreadystatechange = tpiShowSearchResult;

xmlHttp.send(null);

tpiShowSearchResult函数中,如果正确返回结果的话,把这个块隐藏。

function tpiShowSearchResult(response) {

if (response.readyState == 4) {

if (response.status == 200) {

// 隐藏这个div

document.all.ajaxLoadingMsg.style.display ='none';

document.getElementById("tpiSearchResult").innerHTML = response.responseText;

}

}

}

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