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📁 写给JSP初级程序员的书
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<title>csdn_JSP例程 - 获取各种CGI环境变量</title>
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.news {   BACKGROUND: #007cd3;  font-family: "宋体"; font-size: 9pt }
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<center>




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    <td WIDTH="100%" VALIGN="TOP">
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      <tr>
        <td WIDTH="50%" bordercolor="#FFFFFF" CLASS="t1" bgcolor="#F0F0F0" align="center" nowrap>JSP例程 - 获取各种CGI环境变量  </td>
        
      </tr>
      <tr>        <td WIDTH="100%" bordercolor="#FFFFFF" CLASS="t" bgcolor="#F0F0F0" colspan="2">
        <br>
        &lt;%@ page session=&quot;false&quot; import=&quot;java.util.*&quot; %&gt;<br>
        <br>
        &lt;%<br>
        String strEnvs[][] =<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;CONTENT_LENGTH&quot;,String.valueOf(request.getContentLength())},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;CONTENT_TYPE&quot;,request.getContentType()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;SERVER_PROTOCOL&quot;,request.getProtocol()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;SERVER_SOFTWARE&quot;,getServletContext().getServerInfo()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;REMOTE_ADDR&quot;,request.getRemoteAddr()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;REMOTE_HOST&quot;,request.getRemoteHost()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;REMOTE_USER&quot;,request.getRemoteUser()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;SERVER_NAME&quot;,request.getServerName()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;SERVER_PORT&quot;,String.valueOf(request.getServerPort())},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;AUTH_TYPE&quot;,request.getAuthType()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;REQUEST_METHOD&quot;,request.getMethod()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;PATH_INFO&quot;,request.getPathInfo()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;PATH_TRANSLATED&quot;,request.getPathTranslated()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;QUERY_STRING&quot;,request.getQueryString()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;REQUEST_URI&quot;,request.getRequestURI()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;SCRIPT_NAME&quot;,request.getServletPath()},<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&quot;DOCUMENT_ROOT&quot;,getServletContext().getRealPath(&quot;/&quot;)}<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;};<br>
        Enumeration enumNames;<br>
        String strName,strValue;<br>
        int i;<br>
        %&gt;<br>
        <br>
        &lt;html&gt;<br>
        &lt;head&gt;<br>
        &lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; 
        charset=gb2312&quot;&gt;<br>
        &lt;title&gt;JSP例程 - 获取各种CGI环境变量&lt;/title&gt;<br>
        &lt;/head&gt;<br>
        &lt;body&gt;<br>
        &lt;table border=1 cellspacing=0 cellpadding=0 align=center&gt;<br>
        &lt;tr&gt;<br>
        &nbsp;&nbsp;&lt;th&gt;Name&lt;/th&gt;<br>
        &nbsp;&nbsp;&lt;th&gt;Value&lt;/th&gt;<br>
        &lt;/tr&gt;<br>
        &lt;%<br>
        enumNames = request.getHeaderNames();<br>
        while(enumNames.hasMoreElements()){<br>
        &nbsp;&nbsp;&nbsp;&nbsp;strName = (String)enumNames.nextElement();<br>
        &nbsp;&nbsp;&nbsp;&nbsp;strValue = request.getHeader(strName);<br>
        %&gt;<br>
        &lt;tr&gt;<br>
        &nbsp;&nbsp;&lt;td&gt;&amp;nbsp;&lt;%=strName%&gt;&lt;/td&gt;<br>
        &nbsp;&nbsp;&lt;td&gt;&amp;nbsp;&lt;%=strValue%&gt;&lt;/td&gt;<br>
        &lt;/tr&gt;<br>
        &lt;%<br>
        }<br>
        %&gt;<br>
        &lt;tr&gt;<br>
        &nbsp;&nbsp;&lt;th&gt;Name&lt;/th&gt;<br>
        &nbsp;&nbsp;&lt;th&gt;Value&lt;/th&gt;<br>
        &lt;/tr&gt;<br>
        &lt;%<br>
        for(i=0;i&lt;strEnvs.length;i++){<br>
        %&gt;<br>
        &lt;tr&gt;<br>
        &nbsp;&nbsp;&lt;td&gt;&amp;nbsp;&lt;%=strEnvs[i][0]%&gt;&lt;/td&gt;<br>
        &nbsp;&nbsp;&lt;td&gt;&amp;nbsp;&lt;%=strEnvs[i][1]%&gt;&lt;/td&gt;<br>
        &lt;/tr&gt;<br>
        &lt;%<br>
        }<br>
        %&gt;<br>
        &lt;/table&gt;<br>
        &lt;/body&gt;<br>
        &lt;/html&gt;</p>
        </td>
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    </td>
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