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📄 代码清单3-3.htm

📁 《深入浅出Ajax》 源代码
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style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>if
(<span class=SpellE>window.ActiveXObject</span><span class=GramE>){</span><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#008<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=SpellE>xmlHttp</span> = new <span class=SpellE><span class=GramE>ActiveXObject</span></span><span
class=GramE>(</span>&quot;<span class=SpellE>Microsoft.XMLHTTP</span>&quot;);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#009<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=GramE>}else</span> if(<span class=SpellE>window.XMLHttpRequest</span>){<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#010<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=SpellE>xmlHttp</span> = new <span class=SpellE><span class=GramE>XMLHttpRequest</span></span><span
class=GramE>(</span>);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#011<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>}<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#012<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span>}<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#013<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;</span>//</span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>提交部门下拉框选择内容</span><span lang=EN-US
style='font-size:9.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#014<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span>function <span
class=SpellE>select_<span class=GramE>change</span></span><span class=GramE>(</span>){<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp; </span><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#015<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE>var</span> depart = <span class=SpellE><span class=GramE>document.getElementById</span></span><span
class=GramE>(</span>&quot;depart&quot;).value;<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#016<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>if(</span>depart!=&quot;null&quot;){<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#017<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE><span class=GramE>createXMLHttpRequest</span></span><span
class=GramE>(</span>);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#018<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE>var</span> <span class=SpellE><span class=GramE>url</span></span>=&quot;/<span
class=SpellE>ajaxstudy/third/dropDownListServer.jsp?depart</span>=&quot;+depart;<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#019<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE><span class=GramE>xmlHttp.open</span></span><span class=GramE>(</span>&quot;<span
class=SpellE>GET&quot;,url,true</span>);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#020<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE>xmlHttp.onreadystatechange</span> = <span class=SpellE>showMembers</span>;<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#021<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE><span class=GramE>xmlHttp.send</span></span><span class=GramE>(</span>null);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#022<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span>}<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#023<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span>}<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#024<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>//</span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>根据提交部门返回的职员列表动态加载数据</span><span
lang=EN-US style='font-size:9.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#025<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span>function <span
class=SpellE><span class=GramE>showMembers</span></span><span class=GramE>(</span>){<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp;&nbsp; </span><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#026<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>if
(<span class=SpellE>xmlHttp.readyState</span> == 4) { <o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#027<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>if
(<span class=SpellE>xmlHttp.status</span> == 200) {<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#028<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=SpellE>var</span> <span class=SpellE>membersData</span> = <span
class=SpellE><span class=GramE>xmlHttp.responseXML.getElementsByTagName</span></span><span
class=GramE>(</span>&quot;member&quot;);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#029<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=SpellE>var</span> <span class=SpellE>membersSelect</span> = <span
class=SpellE><span class=GramE>document.getElementById</span></span><span
class=GramE>(</span>&quot;member&quot;);<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#030<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=SpellE>var</span> option = null;<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#031<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-spacerun:yes'>&nbsp;</span><span class=SpellE>membersSelect.options.length</span>
= 0;<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#032<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>//</span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>循环将数据插入列表框中</span><span lang=EN-US
style='font-size:9.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#033<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
class=GramE>for(</span><span class=SpellE>var</span> <span class=SpellE>i</span>=0;i&lt;<span
class=SpellE>membersData.length;i</span>++){<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#034<span style='mso-spacerun:yes'>&nbsp;
</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span class=SpellE>var</span>
<span class=SpellE>mdisplay</span>=<span class=SpellE>membersData</span>[<span
class=SpellE>i</span>].<span class=SpellE><span class=GramE>childNodes</span></span><span
class=GramE>[</span>0].<span class=SpellE>firstChild.nodeValue</span>;<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#035<span style='mso-spacerun:yes'>&nbsp;
</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE>var</span> <span class=SpellE>mvalue</span>=<span class=SpellE>membersData</span>[<span

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