java ee 7 certification

Download Installation JAva EE SDKVersion: Java platform,enterprise Edition 7 SDK (with JDK 7u45)Download page:Http://www.oracle.com/technetwork/java/javaee/downloads/java-ee-

Download Installation JAva EE SDKVersion: Java platform,enterprise Edition 7 SDK (with JDK 7u45)Download page:Http://www.oracle.com/technetwork/java/javaee/downloads/java-ee-

1. What is Java ee?A: Java EE is a multi-layer (Multi-diered), distributed (distributed), and component-based enterprise-level application model (enterpriese application model) proposed by Sun ). In such an application system, different components can be divided by function. These components can be located on different

also proves that the "i ching" mathematical science is very remarkable. D: The origin of the Eight-step system Any data exists in the computer as a binary form. The early binary evolution of the electrical signal Switch. An integer is also binary in memory, but using a large number of 1 or 0 values is Cumbersome. So I want to shorten a lot of points, the three bits in the binary are represented by ONE. The maximum value that these three bits can fetch is

http://www.oschina.net/translate/java-ee-html5-websocket-example?cmpHTML5 brings the ability of a full-duplex TCP connection WebSocket a standard server to a Web browser.In other words, the browser is able to establish a connection with the server, sending and receiving data through the established communication channels without the need for additional overhead to be introduced by the HTTP protocol.In this

: input [[emailprotected] tomcat]# bin/ startup.sh or [[emailprotected] tomcat]# bin/catalina.sh run Close Tomcat by:[[email protected] tomcat]# bin/catalina.sh stopor [[email protected] tomcat]# bin/shutdown.shShell output:Using catalina_base:/usr/java/tomcatUsing Catalina_home:/usr/java/tomcatUsing Catalina_tmpdir:/usr/java/tomcat/tempUsing Java_home:/usr/

How the Java EE SDK is installedDownload install Java EE SDKVersion: Java platform,enterprise Edition 7 SDK (with JDK 7u45)Download page:Http://www.oracle.com/technetwork/java/javaee/do

First, learning objectives: About Java EE This course is mainly to test our hands-on ability and practical experience in the project, and a lot of the previous learning is different, this semester's Java EE course is mainly through our own projects to obtain practical experience. In the next phase of this critical time

It's a lot more time to operate Linux due to the recent use of Hadoop and other related tasks.Previously, only the Java EE Project execution Environment was configured on Linux, with the provision of a JDK, deployment of Tomcat, and automatic deployment via Docker or JenkinsLook at the process, copy and paste deletion and other basic operations, a lot of things for a long time forget, all write a demo to co

occurs. With HTTP traffic debugging, it's easy to see the handshake. As soon as the client creates a WebSocket instance, the following request and server-side response will appear:Note: We only entered the HTTP header used by the WebSocket handshake.Request:Get/byteslounge/websocket http/1.1Connection:upgradeUpgrade:websocketsec-websocket-key:wvluj/tu9g6ebzeh51idvq==Response:http/1.1 101 Web Socket Protocol HandshakeUpgrade:websocketsec-websocket-accept:2tnh+0h5gtx019lci6mnvs66psy=Note: The con

Here's a detailed introduction to each step of building a Java EE development environment under Eclipse,Environment:Win 7 + JDK 1.7 + Eclipse IDE for Java EE developers 3.7 +tomcat 6.0First, prepare the software:　　jdk:jdk-7u3-windows-i586　　Ide:eclipse-jee-indigo-sr2-win32Ref

CTRL + D K: Extraction method ALT + SHIFT + M L: Renaming ALT + SHIFT + R 7. Java Development tools (how to improve development efficiency in eclipse) ALT + SHIFT + S A: Automatic generation of construction methods B: Automatic generation of Get/set methods 8. Java Development Tools (a standard student class in Eclipse and

practice of loop structure for statement) A: Case Demo Requirements: Statistics of "narcissus number" total number of 6. The Java Language Foundation (the format and basic use of the loop structure while statement) A: The format of the loop structure while statement: while循环的基本格式：while(判断条件语句) { 循环体语句;}完整格式：初始化语句;while(判断条件语句) { 循环体语句; 控制条件语句;} B: Execution Process: A: Execute init

: FastdfsDatabase connection pool: Alibaba Druid 1.0Core Framework: Spring frameworkSecurity framework: Apache Shiro 1.2View Frame: Spring MVC 4.0Server-side validation: Hibernate Validator 5.1Layout frame: Sitemesh 2.4Workflow Engine: Activiti 5.15Task Scheduler: Quartz 1.8.5Persistence Layer Framework: MyBatis 3.2Log management: slf4j 1.7, log4jTool classes: Apache Commons, Jackson 2.2, Xstream 1.4, dozer 5.3, POI2. Front-endJS Frame: JQuery 1.9.CSS Framework: Bootstrap 4 MetronicClient-side v

systems need to be integrated with many external systems, and the integrated approach may take esb,jms,web service,socket. 7 user interaction emphasizes interface interaction and data expression, need to support a variety of data presentation methods, the need for a large number of data on the page display, transmission8 The development process emphasizes the software process, the industry experience, the need to write a large number of documents and

type [] Array name = new data type [array length]; D: Case Demo Output array names and arrays elements 3. Java Language Foundation (memory allocation in Java and differences between stacks and heaps) A: Stack (Master) Store local Variables B: Heap (Master) Storing new arrays or objects C: Method Area Object-orient

, and advanced Introduction: The author is a Java 2nd character. He is currently Google's Java boss and is a strongly recommended book by James gosling. 5. Java and Mode Star Rating: Target Audience: intermediate and advanced Introduction: it is a rare book worth buying by Chinese people. Of course, there are also big talk design patterns and so on. This book ap

and concurrent mode . A single session Bean is very similar to a stateless session Bean, except that a single session Bean has only one instance in the application and no stateful session the Bean can have many instances, each of which is placed in the component pool and shared by the user. A single session Bean , like a stateless session Bean , is never deactivated. Its lifecycle contains only two types: "Not exist" and "exist." Below, see figure Five ( Lifecycle of a single session Bea

Environment:Win 7 + JDK 1.7 + Eclipse IDE for Java EE developers 3.7 +tomcat 6.0First, prepare the software:　　Jdk:　　Ide:Server:　　(i) Installing and configuring the JDKThe JDK comes with a JRE and does not need to be downloaded separately.Open the JDK installation,Select the installation directory, next, install the JDK, ask whether to install the JRE, choose Next

this interface into a managed bean: The @ Any qualifier publicclassSomeBean{ @Inject publicvoidlistServiceImplementations( @AnyInstance for(Serviceservice:serviceList){ System.out.println(service.getClass().getCanonicalName()); } } } @ AnyThe modifier tells the container that any available dependencies apply to the injection point, so the container injects them. If we have multiple implementations of interfaces and we only inject one of them-without any exclusion