Java Server Mode

Last year in the investigation of a lot of java applications, see some of the phenomenon is the programmer to run on their own environment to read the program rarely lead to troubleshooting problems will be more frustrating, so think of writing this series of articles, procedures To provide functionality to end-users, the code is only one part of it, and it needs to be relied on for jvm, os, server hardware, networking, load balancing, etc. In this series of articles, Several parts, more is only a science role, because os I use are linux, this series ...

The acronym for Google WEB Toolkit, with GWT being able to write AJAX front-end using the Java programming language, and then GWT will cross compile to the optimized http://www.aliyun.com/zixun/aggregation/33906.html ">javascript, while JavaScript can be run automatically on all major browsers. GWT allows developers to use the Java programming language to quickly build and ...

As we all know, Java in the processing of data is relatively large, loading into memory will inevitably lead to memory overflow, while in some http://www.aliyun.com/zixun/aggregation/14345.html "> 　　Data processing we have to deal with massive data, in doing data processing, our common means is decomposition, compression, parallel, temporary files and other methods; For example, we want to export data from a database, no matter what the database, to a file, usually Excel or ...

Jmx4perl is a tool that provides another way to access the Java Jee Server management interface, based on JMX. It is an agent-based approach, with small Web applications deployed on the http://www.aliyun.com/zixun/aggregation/15818.html > Application Server, providing a http/based JSON Access application server has registered JMX Mbeans. Built from a small number of Perl modules, it can be used in ...

Zookeeper cluster mode can not deploy the cloud server [java.net.BindException: Unable to specify the requested address (Bind failed)] solution. The main text In the cloud server (Aliyun, Tencent cloud) on the deployment of Zookeeper cluster mode, there are many reasons for the failure, the Internet mainly refers to the port is occupied (not open) and firewall open two kinds of problems, a lot of similar blog, this article is not To repeat. If you've already made changes for both of the above two cases and still have not been successful, then maybe ...

Multithreading is the problem that programmers often face in the interview, the level of mastery and understanding of multithreading concept is often used to measure a person's programming strength. Yes, ordinary multithreading is not easy, then when multithreading encounter "elephants" will produce what kind of sparks? 　　Here we share the Java thread Pool management and distributed Hadoop scheduling framework with 严澜, the Shanghai Creative Technology director. Usually the development of the thread is a thing, such as Tomcat in the servlet is the threads, no thread how we provide more ...

While the term cloud computing is not new (Amazon started providing its cloud services in 2006), it has been a real buzzword since 2008, when cloud services from Google and Amazon gained public attention. Google's app engine enables users to build and host Web applications on Google's infrastructure. Together with S3,amazonweb services also includes elastic Cloud Compute (EC2) calculation ...

Openxava is a simple framework for using XML and Java to develop j2eehttp://www.aliyun.com/zixun/aggregation/6441.html "> Business applications." Openxava does not use the common MVC architecture, which is a JPA application engine that enables you to persist the Run-time entity objects into a database by JDK5.0 annotations or XML to describe the mapping relationship of the object-relational table. Use Openxava ...

It provides the default http://www.aliyun.com/zixun/aggregation/8284.html "> Desktop application Interface sometimes does not meet the user's needs, users may need to add menus in the interface and its corresponding behavior. This article gives you an example of how to use Java to develop user-defined menus. This article is mainly about the IBM ILOG optimization Decision Management ...

Usually the development of the thread is a thing, such as Tomcat is a servlet in the threads, there is no thread how do we provide multi-user access? But many developers who have just started to touch threads have suffered a lot. 　　How to do a set of simple threading Development Mode framework for everyone from the single thread development into multithreaded development, this is really a relatively difficult project. What is the specific thread? First look at what the process is, the process is a system executed a program, this program can use memory, processor, file system and other related resources ...