10.html

写给JSP初级程序员的书

仿宋_GB2312'><o:p></o:p></span></b></p>

<p class=MsoNormal><span style='font-family:仿宋_GB2312;mso-ascii-font-family:
"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>到现在为止</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>我们未讨论作为服务器扩展的</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Tomcat,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>只讨论了作为独立运行的服务器</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>.</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>但有一些问题需要说明</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>:<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:108.0pt;text-indent:-18.0pt;mso-list:
l0 level3 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:仿宋_GB2312;mso-ascii-font-family:
"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>当处理静态页面时</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,Tomcat</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>不如</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Apache</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>迅速</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>.<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:108.0pt;text-indent:-18.0pt;mso-list:
l0 level3 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>Tomcat</span><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>不象</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Apache</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>一样可配置</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>.<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:108.0pt;text-indent:-18.0pt;mso-list:
l0 level3 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>Tomcat</span><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>不象</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Apache</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>一样强壮</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>.<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:108.0pt;text-indent:-18.0pt;mso-list:
l0 level3 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>4.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:仿宋_GB2312;mso-ascii-font-family:
"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>有很多网站已在某一特定</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>web
server</span><span style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>上投入了很长时间</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>例如</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>使用</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>CGI</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>脚本</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>/Server
API</span><span style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>模组</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>/perl/php…</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>我们不能假设这些遗留下来的东西都会被丢弃</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>.<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>基于以上原因</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>一个现实的网站建议使用一个</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Web</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>服务器</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>如</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Apache,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>为网站的静态页面请求提供服务</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>并使用</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Tomcat</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>作为一个</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Servlet/JSP</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>插件</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>.<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>我们不准备深入的讨论每个不同的配置</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>,</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>我们将</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>:<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:144.0pt;text-indent:-18.0pt;mso-list:
l0 level4 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:仿宋_GB2312;mso-ascii-font-family:
"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>涵盖</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Web</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>服务器的基本行为</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:144.0pt;text-indent:-18.0pt;mso-list:
l0 level4 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:仿宋_GB2312;mso-ascii-font-family:
"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>解释需要何种配置</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:144.0pt;text-indent:-18.0pt;mso-list:
l0 level4 lfo1'><![if !supportLists]><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'>3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:仿宋_GB2312;mso-ascii-font-family:
"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>在</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Apache</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>上的实例</span><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>

<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span lang=EN-US
style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Web </span></b><b
style='mso-bidi-font-weight:normal'><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>服务器操作</span></b><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-family:"Bookman Old Style";
mso-fareast-font-family:仿宋_GB2312'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:21.75pt'><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>简单说来，</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>web</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>服务器总是等待来自客户端的</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>HTTP</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>请求。当请求到达时，服务器会提供一切必要的内容来满足此请求。加入一个</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>Servlet</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>容器某种程度上会改变此行为。但服务器仍需处理如下因素：</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:21.75pt'><span style='font-family:仿宋_GB2312;
mso-ascii-font-family:"Bookman Old Style";mso-hansi-font-family:"Bookman Old Style"'>载入</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'>servlet</span><span
style='font-family:仿宋_GB2312;mso-ascii-font-family:"Bookman Old Style";
mso-hansi-font-family:"Bookman Old Style"'>容器接口库并初始化（处理请求之前）。</span><span
lang=EN-US style='font-family:"Bookman Old Style";mso-fareast-font-family:仿宋_GB2312'><o:p></o:p></span></p>

<p class=Ms