📄 sys_info.jsp
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<html>
<body bgcolor="white">
<table width="95%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td>The browser you are using is
<% out.print(request.getHeader("User-Agent")); %>
<%
ServletContext context = application;
String serverInfo = context.getServerInfo();
int majorVersion = context.getMajorVersion();
int minorVersion = context.getMinorVersion();
String servletVersion = new StringBuffer().append(majorVersion).append('.').append(minorVersion).toString();
String vmName = "";
String vmVendor = "";
String vmVersion = "";
String runtimeName = "";
String runtimeVersion = "";
String osName = "";
String osVersion = "";
String cpu = "";
// get system info
try {
vmName = System.getProperty("java.vm.name", "");
vmVendor = System.getProperty("java.vm.vendor", "");
vmVersion = System.getProperty("java.vm.version", "");
runtimeName = System.getProperty("java.runtime.name", "");
runtimeVersion = System.getProperty("java.runtime.version", "");
osName = System.getProperty("os.name", "");
osVersion = System.getProperty("os.version", "");
cpu = System.getProperty("sun.cpu.isalist", "");
} catch (Exception ex) {
ex.printStackTrace();
}
// now save them
request.setAttribute("ServerInfo", serverInfo);
request.setAttribute("ServletVersion", servletVersion);
request.setAttribute("vmName", vmName);
request.setAttribute("vmVendor", vmVendor);
request.setAttribute("vmVersion", vmVersion);
request.setAttribute("runtimeName", runtimeName);
request.setAttribute("runtimeVersion", runtimeVersion);
request.setAttribute("osName", osName);
request.setAttribute("osVersion", osVersion);
request.setAttribute("cpu", cpu);
%>
</td>
</tr>
</table>
<br>
<table width="95%" border="0" cellspacing="1" cellpadding="3" align="center" bgcolor="#999999">
<tr bgcolor="#666699" class="header">
<td colspan="2"><strong><font color="#FFFFFF">Request Information</font></strong></td>
</tr>
<tr bgcolor=#f5f5f5>
<td width="30%" class="messageText">JSP Request Method</td>
<td><%= request.getMethod() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText"> Request URI</td>
<td class="messageText"><%= request.getRequestURI() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Request Protocol</td>
<td class="messageText"><%= request.getProtocol() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Servlet path</td>
<td class="messageText"><%= request.getServletPath() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Context path</td>
<td class="messageText"><%= request.getContextPath() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Path info</td>
<td class="messageText">
<% out.print(request.getPathInfo()); %>
</td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Query string</td>
<td class="messageText">
<% out.print(request.getQueryString()); %>
</td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Content length</td>
<td class="messageText"><%= request.getContentLength() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Content type</td>
<td class="messageText"><%= request.getContentType() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Server name</td>
<td class="messageText"><%= request.getServerName() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Server port</td>
<td class="messageText"><%= request.getServerPort() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Remote user</td>
<td class="messageText"><%= request.getRemoteUser() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Remote address</td>
<td class="messageText"><%= request.getRemoteAddr() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Remote host</td>
<td class="messageText"><%= request.getRemoteHost() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Authorization scheme</td>
<td class="messageText"><%= request.getAuthType() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Locale</td>
<td class="messageText"><%= request.getLocale() %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Root Real Path</td>
<td class="messageText"><%= pageContext.getServletContext().getRealPath("/") %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">WEB-INF/classes Real Path</td>
<td class="messageText"><%= pageContext.getServletContext().getRealPath("/WEB-INF/classes") %></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Servlet Context Name</td>
<td class="messageText"><%= pageContext.getServletContext().getServletContextName() %></td>
</tr>
</table>
<br>
<br>
<table width="95%" border="0" cellspacing="1" cellpadding="3" align="center" bgcolor="#999999">
<tr bgcolor="#666699" class="header">
<td colspan="2"><strong><font color="#FFFFFF">Application Server Infomation</font></strong></td>
</tr>
<tr bgcolor=#f5f5f5>
<td width="30%" class="messageText">Application Server</td>
<td class="messageText"><%=(String)request.getAttribute("ServerInfo")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Servlet Version</td>
<td class="messageText"><%=(String)request.getAttribute("ServletVersion")%></td>
</tr>
</table>
<p>
<p>
<table width="95%" border="0" cellspacing="1" cellpadding="3" align="center" bgcolor="#999999">
<tr bgcolor="#666699" class="header">
<td colspan="2"><strong><font color="#FFFFFF">System Information</font></strong></td>
</tr>
<tr bgcolor=#f5f5f5>
<td width="30%" class="messageText">vmName</td>
<td class="messageText"><%=(String)request.getAttribute("vmName")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">vmVendor</td>
<td class="messageText"><%=(String)request.getAttribute("vmVendor")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">vmVersion</td>
<td class="messageText"><%=(String)request.getAttribute("vmVersion")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">runtimeName</td>
<td class="messageText"><%=(String)request.getAttribute("runtimeName")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">runtimeVersion</td>
<td class="messageText"><%=(String)request.getAttribute("runtimeVersion")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">osName</td>
<td class="messageText"><%=(String)request.getAttribute("osName")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">osVersion</td>
<td class="messageText"><%=(String)request.getAttribute("osVersion")%></td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">cpu</td>
<td class="messageText"><%=(String)request.getAttribute("cpu")%></td>
</tr>
<%
Runtime runtime = Runtime.getRuntime();
long totalMemory = runtime.totalMemory();
long freeMemory = runtime.freeMemory();
long totalKB = totalMemory/1024;
long freeKB = freeMemory/1024;
%>
<tr bgcolor=#f5f5f5>
<td class="messageText">Total Memory</td>
<td class="messageText"><%=totalKB%> KB</td>
</tr>
<tr bgcolor=#f5f5f5>
<td class="messageText">Free Memory</td>
<td class="messageText"><%=freeKB%> KB</td>
</tr>
</table>
</body>
</html>
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