把写好的 servlet 部属到服务器上面后运行一段时间会提示 内存溢出 ，不知道什么原因，webloic服务软件。运行一段时期内才提示 内存溢出。下面是那个servlet代码，请高手看看有没有逻辑错误，谢了！
private static final int MINUTE = 1;
private static List sessionList = new ArrayList();
protected void service(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
Calendar calendar = Calendar.getInstance();
//判断删除超时时间。
int i = 0;
while (i < sessionList.size()) {
if (((Calendar) sessionList.get(i)).get(Calendar.DATE) != calendar.get(Calendar.DATE)) {
sessionList.clear();
break;
}
if (((Calendar) sessionList.get(i)).get(Calendar.HOUR) != calendar.get(Calendar.HOUR)) {
sessionList.remove(i);
continue;
}
if (calendar.get(Calendar.MINUTE) - ((Calendar) sessionList.get(i)).get(Calendar.MINUTE) > MINUTE) {
sessionList.remove(i);
continue;
}
i++;
}
sessionList.add(calendar);
System.out.println("sessionList:" + sessionList.size());
//检查请求文件是否存在
String reportName = request.getParameter("ReportName");
String reportFileName = "/" + reportName + ".raq";
//获得动态文件夹存放路径
File file = new File(request.getSession().getServletContext().getRealPath("/") + "/reportFiles" + reportFileName);
if (file.exists()) {
System.out.println("fileExist");
} else {
System.out.println(request.getSession().getServletContext().getRealPath("/") + "/reportFiles" + reportFileName);
response.sendRedirect("noFileError.jsp");
return;
}
Properties properties = new Properties();
properties.load(getClass().getResourceAsStream("/Logincount.properties"));
//超过读取.properties文件限制个数跳转错误页面 <
if (sessionList.size() > Integer.parseInt(properties.getProperty("LOGINCOUNT"))) {
response.sendRedirect("loginOver.jsp");
return;
} else {
response.sendRedirect("ShowReport.jsp?ReportName=" + request.getParameter("ReportName") + "&ID=" +
request.getParameter("ID") + "&SWJG_DM=" + request.getParameter("SWJG_DM"));
}
}
------解决方案--------------------
java虚拟机内存(默认好像是64m,记不大清楚了)设置大点看看能不能解决