您可以在
conf/server.xml配置中限制可接受/可操作的连接数。
有
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-" maxThreads="16" minSpareThreads="1"/>
和
<Connector executor="tomcatThreadPool"port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
要么
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" maxThreads='16'/>
在配置文件，这应该刹车。
编辑：
根据您的评论，您可以根据CPU计数（
Runtime.getRuntime().availableProcessors()）将处理移到专用线程池中（请参阅ExecutorService和Executors。）然后您可以应用有界linkedBlockingQueue来限制待处理任务的数量（不要忘记指定RejectedExecutionHandler来在队列已满时进行阻塞添加）。
编辑2： 添加到类的链接。在那里您可以找到一些样本。
编辑3： 我在项目中使用的示例方法。
private ExecutorService newPool(int poolSize, String poolName, final int priority, int capacity) { int cpu = Runtime.getRuntime().availableProcessors(); ExecutorService result = null; if (poolSize != 0) { if (poolSize == -1) { poolSize = cpu; } if (capacity <= 0) { capacity = Integer.MAX_VALUE; } result = new ThreadPoolExecutor(poolSize, poolSize, 120, TimeUnit.MINUTES, new linkedBlockingQueue<Runnable>(capacity), new ThreadFactory() { @Override public Thread newThread(Runnable runnable) { Thread t = new Thread(runnable); t.setPriority(priority); return t; } }, new RejectedExecutionHandler() { @Override public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) { if (!executor.isShutdown()) { try { executor.getQueue().put(r); } catch (InterruptedException ex) { // give up } } } }); } return result;}您可以通过以下方式使用它：
ExecutorService exec = newPool(-1, "converter pool", Thread.NORM_PRIORITY, 500);servletContext.setAttribute("converter pool", exec);并在您的servlet中
ExecutorService exec = (ExecutorService)servletContext.getAttribute("converter pool");exec.submit(new Runnable() { public void run() { // your pre for transformation goes here }}
