cache.jsp

云网oa办公自动化系统java源码。能够使用！有说明！

<%@ page contentType="text/html;charset=utf-8" %>
<%@ page import="java.util.*,
				 java.text.*,
				 cn.js.fan.util.*,
				 cn.js.fan.cache.jcs.*"
%>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link href="../common.css" rel="stylesheet" type="text/css">
<link href="default.css" rel="stylesheet" type="text/css">
<%
String priv="class";
String op = ParamUtil.get(request, "op");
RMCache rmcache = RMCache.getInstance();
if (op.equals("startcache")) {
	rmcache.setCanCache(true);
}
if (op.equals("stopcache")) {
	rmcache.setCanCache(false);
}
if (op.equals("clear")) {
	rmcache.clear();
}
%>
<%!	// global variables

	// decimal formatter for cache values
	static final DecimalFormat mbFormat = new DecimalFormat("#0.00");
	static final DecimalFormat percentFormat = new DecimalFormat("#0.0");
    // variable for the VM memory monitor box
    static final int NUM_BLOCKS = 50;
%>
<p>
<font size="-1"><b>
<jsp:useBean id="backup" scope="page" class="cn.js.fan.util.Backup"/>
<jsp:useBean id="cfg" scope="page" class="cn.js.fan.web.Config"/>
<jsp:useBean id="privilege" scope="page" class="cn.js.fan.module.pvg.Privilege"/>
<%
if (!privilege.isUserPrivValid(request, "admin"))
{
	out.print(cn.js.fan.web.SkinUtil.makeErrMsg(request, cn.js.fan.web.SkinUtil.LoadString(request, "pvg_invalid")));
	return;
}
%>
</b></font>
<table cellSpacing="0" cellPadding="0" width="100%">
  <tbody>
    <tr>
      <td class="head">系统信息</td>
    </tr>
  </tbody>
</table>
<br>
<TABLE 
style="BORDER-RIGHT: #a6a398 1px solid; BORDER-TOP: #a6a398 1px solid; BORDER-LEFT: #a6a398 1px solid; BORDER-BOTTOM: #a6a398 1px solid" 
cellSpacing=0 cellPadding=3 width="95%" align=center>
  <!-- Table Head Start-->
  <TBODY>
    <TR>
      <TD class=thead style="PADDING-LEFT: 10px" noWrap width="70%"><font size="-1"><b>Java VM （Java虚拟机）内存</b></font> </TD>
    </TR>
    <TR class=row style="BACKGROUND-COLOR: #fafafa">
      <TD height="175" align="center" style="PADDING-LEFT: 10px"><p>      
        <ul>
          <%	// The java runtime
	Runtime runtime = Runtime.getRuntime();

    double freeMemory = (double)runtime.freeMemory()/(1024*1024);
	double totalMemory = (double)runtime.totalMemory()/(1024*1024);
	double usedMemory = totalMemory - freeMemory;
	double percentFree = ((double)freeMemory/(double)totalMemory)*100.0;
    int free = 100-(int)Math.round(percentFree);
%>
          <table border=0>
            <tr>
              <td><font size="-1">已用内存:</font></td>
              <td><font size="-1"><%= mbFormat.format(usedMemory) %> MB</font></td>
            </tr>
            <tr>
              <td><font size="-1">内存总量:</font></td>
              <td><font size="-1"><%= mbFormat.format(totalMemory) %> MB</font></td>
            </tr>
          </table>
          <br>
          <table border=0>
            <td><table bgcolor="#000000" cellpadding="1" cellspacing="0" border="0" width="200" align=left>
          <td><table bgcolor="#000000" cellpadding="1" cellspacing="1" border="0" width="100%">
                <%    for (int i=0; i<NUM_BLOCKS; i++) {
        if ((i*(100/NUM_BLOCKS)) < free) {
    %>
                <td bgcolor="#00ff00" width="<%= (100/NUM_BLOCKS) %>%"><img src="images/blank.gif" width="1" height="15" border="0"></td>
                    <%		} else { %>
                    <td bgcolor="#006600" width="<%= (100/NUM_BLOCKS) %>%"><img src="images/blank.gif" width="1" height="15" border="0"></td>
                    <%		}
    }
%>
            </table></td>
              </table></td>
                <td><font size="-1"> &nbsp;<b><%= percentFormat.format(percentFree) %>% 空闲</b> </font> </td>
          </table>
          <br>
          >>&nbsp;<a href="cache_jvm.jsp">管理</a>
        </ul>
      <%	// Destroy the runtime reference
	runtime = null;
%>
      <%if (rmcache.getCanCache()) {%>
	  缓存已启用 >><a href="cache.jsp?op=stopcache">停用</a>
	  <%}else{%>
	  缓存已停用 >><a href="cache.jsp?op=startcache">启用</a>
	  <%}%>&nbsp;&nbsp;<a href="cache.jsp?op=clear">清除缓存</a>	  </TD>
    </TR>
    <!-- Table Body End -->
    <!-- Table Foot -->
    <TR>
      <TD class=tfoot align=right><DIV align=right> </DIV></TD>
    </TR>
    <!-- Table Foot -->
  </TBODY>
</TABLE>