Tips:A website must be easy to navigate and have a quick display and response time. Bad navigation metrics include: abandoned shopping carts; first time visitors look at one or two pages and disappear; dead ends require the "back" button; less than 5% buy something; any broken links. Good...
需要实现这么一个功能,对比了几个实现方式。最终选择了socket.io。 1、commet,最初想到这个功能要求不高,想简单的通过commet方式实现就算了。但考虑到commet已经是比较老旧的做法了,其中有很多弊端,所以放弃了。 2、netty。netty是非常棒的java nio框架。但考虑到我需要实现的功能,有点杀鸡用牛刀的感觉,而且要兼顾小...
Here are some commonly used JVM parameters that every application developer should review, some may be appropriate for your application, some may not. This post is a quick reference for these parameters, please refer to the officialjava docsfor complete technical documentations. -Xms -Xmx e.g. ...
INFO o.b.w.client.MyStompSessionHandler - Received : Howdy!! from : NickyCopy 6. Conclusion In this quick tutorial, we have implemented a Spring-based WebSocket client. The complete implementation could be foundover on GitHub. course:
Obviously, for superior performance you'd want the servlet container to create multiple instances of a SingleThreadModel type servlet should there be many requests received in quick succession. Whether or not a servlet container does that depends completely on the implementation. My experiments show tha...
When using a Derby database for polling in a clustered environment with the Number of Records option set to a low value, the following exception is thrown and the connection pool becomes unusable: java.sql.SQLException: Connection closed. ...
Even in the test where few objects were created, you can see some object allocation. This is mostly due to VisualVM’s polling. To reduce this I changed the polling interval from 3 seconds to 20 seconds. The Eden size was increased to make the graphs clearer with-XX:NewSize=100mThis va...
while(run.status().equals(RunStatus.QUEUED) || run.status().equals(RunStatus.IN_PROGRESS)) { System.out.println("Polling run..."); java.lang.Thread.sleep(500); run = client.beta() .threads() .runs() .retrieve(BetaThreadRunRetrieveParams.builder() .threadId(thread.id()) .runId(run...
For the when, you have several choices such as building it after another Jenkins project, building it every so often based on a cron-like schedule, or based on polling the SCM to see if anything has changed (using the same cron-like scheduler). If your project is at GitHub (not just ...
importjava.util.function.Function; importsun.reflect.MethodAccessor; /* Name of the class has to be "Main" only if the class is public. */ classIdeone { publicstaticvoidmain(String[]args)throwsException{ Function<String, String>sayHello=name->"Hello, "+name; ...