檢視jvm記憶體使用情況的jsp頁面

<%

Runtime lRuntime = Runtime.getRuntime();

out.println("*** BEGIN MEMORY STATISTICS ***<br/>");

out.println("Free  Memory: "+lRuntime.freeMemory()/1024/1024+"M<br/>");

out.println("Max   Memory: "+lRuntime.maxMemory()/1024/1024+"M<br/>");

out.println("Total Memory: "+lRuntime.totalMemory()/1024/1024+"M<br/>");

out.println("Available Processors : "+lRuntime.availableProcessors()+"<br/>");

out.println("*** END MEMORY STATISTICS ***");

%>

效果圖：

*** BEGIN MEMORY STATISTICS ***

Free Memory: 448M

Max Memory: 1016M

Total Memory: 508M

Available Processors : 2

*** END MEMORY STATISTICS ***