📄 jsp.htm
字号:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">，就可启动</span><span lang="EN-US" style="color:#9900FF">JSWDK</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">中一个支持</span><span lang="EN-US" style="color:#9900FF">JSP</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">网页技术的</span><span lang="EN-US" style="color:
#9900FF">Web</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">服务器。为了不与现有的</span><span lang="EN-US" style="color:#9900FF">Web</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">服务器（例如</span><span lang="EN-US" style="color:#9900FF">IIS</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">、</span><span lang="EN-US" style="color:#9900FF">PWS</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">等）冲突，</span><span lang="EN-US" style="color:
#9900FF">JSWDK</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">的</span><span lang="EN-US" style="color:#9900FF">Web</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">服务器使用了</span><span lang="EN-US" style="color:#9900FF">8080</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">端口。在浏览器的地址栏中键入</span><span lang="EN-US" style="color:#9900FF">http://localhost:8080</span><span style="font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">或者</span><span lang="EN-US" style="color:#9900FF">http://127.0.0.1:8080</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">后，如果能看到</span><span lang="EN-US" style="color:#9900FF">
JSWDK </span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">的欢迎页就说明</span><span lang="EN-US" style="color:#9900FF">JSP</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">实验环境已经建成，可进入下一步实验。要关闭</span><span lang="EN-US" style="color:#9900FF">Web</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">服务器则运行</span><span lang="EN-US" style="color:#9900FF">stopserver.bat</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">。</span><span lang="EN-US" style="color:#9900FF"> <o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">三、</span><span lang="EN-US" style="color:#9900FF">
JSP</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">简单示例</span><span lang="EN-US" style="color:#9900FF"><br>
JSWDK</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">中包含的</span><span lang="EN-US" style="color:#9900FF">Web</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">服务器的文档目录在缺省状态下为</span><span lang="EN-US" style="color:#9900FF">\jswdk-1.0.1\webpages</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">，主文档在缺省状态下为</span><span lang="EN-US" style="color:#9900FF">index.html</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">和</span><span lang="EN-US" style="color:#9900FF">index.jsp</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">。也就是说访问</span><span lang="EN-US" style="color:#9900FF">http://localhost:8080</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">等于访问</span><span lang="EN-US" style="color:#9900FF">\jswdk-1.0.1\webpages\index.html</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">。</span><span lang="EN-US" style="color:#9900FF"><br>
</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">用文本编辑器，如</span><span lang="EN-US" style="color:#9900FF">Windows</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">中的记事本</span><span lang="EN-US" style="color:#9900FF">(Notepad)</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">，创建一个文本文件</span><span lang="EN-US" style="color:#9900FF">hi.jsp</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">，保存在</span><span lang="EN-US" style="color:#9900FF">\jswdk-1.0.1\webpages\</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">目录下，其内容如下：</span><span lang="EN-US" style="color:#9900FF">
<o:p>
</o:p>
</span></p>
<p class="MsoNormal"><code><span lang="EN-US" style="font-size:10.0pt;font-family:
黑体;color:#9900FF"> <o:p>
</o:p>
</span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">html><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">head><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">title>Hi-JSP实验〈/title><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">/head><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">body> <o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">%<o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span lang="EN-US" style="font-size:10.0pt;font-family:
黑体;color:#9900FF"><span style="mso-tab-count:2">
</span>String Msg = "This JSP test.";<span style="mso-spacerun: yes">
</span><o:p>
</o:p>
</span></code></p>
<p class="MsoNormal"><code><span lang="EN-US" style="font-size:10.0pt;font-family:
黑体;color:#9900FF"><span style="mso-tab-count:2">
</span>out.print("Hello World!");<o:p>
</o:p>
</span></code></p>
<p class="MsoNormal"><code><span lang="EN-US" style="font-size:10.0pt;font-family:
黑体;color:#9900FF">%><o:p>
</o:p>
</span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">h2>〈%=Msg%>〈/h2><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">/body><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt;font-family:黑体;
color:#9900FF">〈<span lang="EN-US">/html><o:p>
</o:p>
</span></span></code></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#9900FF"><br>
</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">在浏览器的地址栏中键入</span><span lang="EN-US" style="color:#9900FF">http://localhost:8080/hi.jsp</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">，</span><span lang="EN-US" style="color:#9900FF">JSWDK</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">中的</span><span lang="EN-US" style="color:#9900FF">Web</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">服务器会执行</span><span lang="EN-US" style="color:#9900FF">JSP
</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">文件中用〈</span><span lang="EN-US" style="color:#9900FF">%</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">以及</span><span lang="EN-US" style="color:#9900FF">%></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">括起来的</span><span lang="EN-US" style="color:#9900FF">Java</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">程序语句，其中</span><span lang="EN-US" style="color:#9900FF">out.print</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">是将文字输出到网页，语句〈</span><span lang="EN-US" style="color:#9900FF">%=
</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">变量</span><span lang="EN-US" style="color:#9900FF"> | </span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">表达式</span><span lang="EN-US" style="color:#9900FF">%></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">的作用是将</span><span lang="EN-US" style="color:
#9900FF">Java Scriptlet</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">中变量或表达式的值输出到网页</span><span lang="EN-US" style="color:#9900FF">.<br>
</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">将变量</span><span lang="EN-US" style="color:#9900FF">Msg</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">赋值为中文字符串，用〈</span><span lang="EN-US" style="color:#9900FF">%=
%></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">输出，或者用</span><span lang="EN-US" style="color:#9900FF">out.print</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">输出中文字符串，则在英文版</span><span lang="EN-US" style="color:#9900FF">NT4</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">及</span><span lang="EN-US" style="color:#9900FF">Redhat
6.1</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">下实验运行结果正常，而在中文</span><span lang="EN-US" style="color:#9900FF">NT
4.0</span><span style="font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:#9900FF">和中文</span><span lang="EN-US" style="color:#9900FF">98</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:#9900FF">下，则反而会出现乱码。</span><span lang="EN-US" style="color:#9900FF">
<o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:#9900FF">四、</span><span style="color:#9900FF">
</span><span style="font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:#9900FF">统一的网站界面</span><span lang="EN-US" style="color:#9900FF">
<o:p>
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