java ee architecture tutorial

At present, most enterprises adopt the structure design and solution of Java technology. For us to study and study the Java EE architecture, it is necessary to understand and master the design method of Java EE

RequestHandler returns between Response.client and server after processing is complete Communication: There are many communication protocols and technologies, such as Web SERVICE,EJB,JMS, where single Java NIO-based sockets are used, because of their asynchrony and high concurrency. The two basic criteria for using sockets are: 1. The number of threads on the server can be controlled, and the number of requests should not be linearly increased by 2

The Java EE architecture typically consists of the following layers:1, Domain object layer: This layer is mainly composed of abstract object model (also known as Pojo,plain old Java object Common, traditional Java objects), generally contains the required business logic meth

between these components and the JATO framework components.The Jato Tag library provides an interface between a View object and a JSP file. The tag handler in the library is responsible for synchronizing and exchanging information between the View object and the JSP-generated client document. This diagram clearly expresses this correspondence.The front-end control component receives any request from the user, which can be specified in Web. XML with the request distribution component responsible

between these components and the JATO framework components.The Jato Tag library provides an interface between a View object and a JSP file. The tag handler in the library is responsible for synchronizing and exchanging information between the View object and the JSP-generated client document. This diagram clearly expresses this correspondence.The front-end control component receives any request from the user, which can be specified in Web. XML with the request distribution component responsible

the following components.Mysql-server-5.1.73-3.el6_5.x86_64Mysql-libs-5.1.73-3.el6_5.x86_64Mysql-5.1.73-3.el6_5.x86_64Mysql-devel-5.1.73-3.el6_5.x86_64(4) Installing the JDBC Driverid=451546 "target=" _blank ">http://dev.mysql.com/downloads/file.php?id=451546After running Tar-xvzf mysql-connector-java-5.1.30.tar.gz, copy the jar files into the Tomcat library.CP mysql-connector-java-5.1.30-bin.jar/opt/tomca

)throwsservletexception, IOException {request.setcharacterencoding ("Utf-8"); //Get ParametersNews Data=NewNews (); Data.setnewsid (Integer.parseint (Request.getparameter ("NewSID"))); Data.settitle (Request.getparameter ("Title")); Data.setauthor (Request.getparameter ("Author")); Data.setsource (Request.getparameter ("Source")); Data.setcontent (Request.getparameter ("Content")); Data.settime (NewDate (Request.getparameter ("Time"))); //working with Data Try { NewNewsdao ().

Reprint Please specify source: http://blog.csdn.net/smartbetter/article/details/77893903This article takes you to design a set of satisfying business requirements, code robust and efficient (cohesion-poly low-coupling) and extensible network Framework. Based on the latest OKHTTP3, we design an efficient and reliable network cache, multi-threaded file download and other architecture modules. This is not limited to the use of other people's framework, a

Jeesz is a distributed framework that provides modular, service-based, hot-swappable ideas for project-based Java EE Rapid development platforms with high package security.Jeesz itself integrates Dubbo service control, zookeeper Registration Center, Redis distributed cache technology, FASTDFS Distributed File system, ACTIVEMQ asynchronous message middleware, Nginx load balancing and other distributed techno

(); } } /*** Get XML *@return */ Public StaticDocument GetDOM () {returnDom; } /*** Write XML*/ Public Static voidwriteXml () {}}Com.tsh.domain.User.java PackageCom.tsh.domain;Importjava.io.Serializable; Public classUserImplementsserializable{PrivateString username; PrivateString password; PrivateString password_confirm; PublicString GetUserName () {returnusername; } Public voidSetusername (String username) { This. Username =username; } PublicString GetPassword ()

frame: jQuery1.9.CSS Framework: Bootstrap 4 MetronicClient authentication: Jqueryvalidation Plugin.Rich Text: CkecitorFile Management: CkfinderDynamic tab: JerichotabData table: Jqgriddialog box: JQuery jboxTree structure controls: JQuery ZtreeOther components: Bootstrap 4 metronic3. SupportServer middleware: Tomcat 6, 7, Jboss 7, WebLogic 10, WebSphere 8Database support: Currently only support MySQL database, but not limited to the database, the next version of the upgrade multi-data source sw