head first j2ee

Javascript, IMG, SRC, JSP, J2EE, hibernate, Struts-2.0 Environment: Eclipse, struts2, hibernate3.0 JSP, J2EE, JavaScript [write: drs163@163.com www.newsoftstudio.com] The struts2 action on the background server can return a list set to the JSP page. one project is a string of the file path. when the actual JSP page is displayed, each line of record is preceded by a small icon determined based on the file ty

Where is the development path of the J2EE technology? Author: Chen yuefeng From: http://blog.csdn.net/mailbomb I came into contact with the j2's Technology in 2002. At that time, the company needed to use a mobile terminal to access an internal project, so I learned the j2's technology, in the first half of 2003, I joined my colleagues in completing a project using the J2EE technology. However, after the

Classic J2EE design mode JSP-ACTION-Delegate-EJB-Service In, the business logic is implemented at the Service layer. We often see that the method with the same signature appears N times, but it is to pass the responsibility layer back, and ultimately implemented by the Service. The reason why there is a Delegate is that EJB users are reluctant to face the complex interface of EJB, while EJB writers often know how to call it. Therefore, EJB writers w

must use the configuration that seems to be the highest from the perspective of project decision-making. The political risks caused by technical implementation difficulties should be used, it can be inferred through the transmission of inequality: "Party B is so powerful that there is no way to do it. Therefore, this project is indeed beyond our and current technical capabilities in the industry ". * If a project has political risks and no technical risks, and you are not confident to solve the

J2EE learning notes-database operations-J2EE learning notes-database operations Objective: Learn to install databases (MySQL) and load JDBC drivers Master how to connect to MySQL in JSP and perform operations such as creating database tables, adding, updating, and deleting records (1) Download and install MySQL For more information, see Baidu. (2) Download and install MySQL Mysql, find the download link

Eclipse + Tomcat + Mysql build J2EE development environment (original) Tomcat Reproduced from: http://blog.csdn.net/wdwgr/article/details/1586155 The threshold for learning j2ee is the configuration of the development environment. I feel like I can't start without the development environment. I am so worried for a long time. Finally, I chose eclipse + tomcat + mysql, there are also many articles on develo

text files, such as Word documents and non-text files such as audio and video files, the maximum length is 4 GB. Dizzy data is stored in the database.Bfile: A large binary object file stored outside the database. The maximum length is 4 GB. This type of LOB is used to record changes in the database, however, data is stored outside the database. Raw data types provided in oracle:Raw (Long raw: variable-length binary data with a maximum length of 2 GB. It can be used to save large graphics or tex

This article demonstrates the series of Rational tools used in distributed, J2EE-based projects.Article(As listed below. Part 1: Project Introduction and high-level planning Part 1: risk management and demand management Part 1: model creation and access control; Requirement Analysis Part 1: Refined use cases, production reports, and selection of tools and technologies Part 1: architecture and design Part 1: Detailed design; e

AfterAdobePainstaking efforts,FlashIt has evolved from a "little tool" for animation production to a technical platform that is sufficient to supportAdobe RiaConcept. We can see that the entireFlashThe platform includes server applications, client technologies, integration with other technical systems, and a variety of development tools, making it an independent technical system. How to properly use Flash Technology? Considerations Flash Technical Background and Adobe For Flash . Flash

Java is used in several projects recently, so I started to understand Java more systematically. This articleArticleI feel a little bit about J2EE development in the short term. I have always been proudProgramPersonnel (although my own accomplishments in C ++ may not be profound), there has always been a "King style" of C ++ programmers ", it is worth boasting that C ++ can be done in terms of efficiency, design, and syntax complexity. Some w

This is a discussion between knnopix and dlee in May. It is still very valuable to find out. Application Server Jetty HTTP server and Java serverlet containerJotm Transaction Management ServerApache is the best choice for HTTP, XML, ant, tomcat, velocity,... enterprise applications.Tyrex Transaction Management ServerOpenjms Message ServerJBoss is a fast and powerful J2EE server.Common Tomcat Java Application ServerResin is another common Java appl

J2EE is generally divided into the client, presentation layer, business layer, persistent layer, and EAI layer. the main mode involved is the intermediate three layers (presentation layer, business layer, and persistence layer). The following layers describe the corresponding mode. i. The presentation layer design mainly takes into account the scalability and maintainability of the presentation layer. there are mainly the following modes 1. interprete

CurrentJ2EEA common problem faced by the project is that, although some persistence layer frameworks have done a lot of work for us to control the concurrent access of transactions, we can understand the principle, it is still very useful for our development. This article summarizes several problems encountered in the current Persistence Layer Design of J2EE based on Hibernate and JPA standards: Transaction concurrency access control policy In the cur

EJB Based on J2EE, EJB Based on J2EE 1,What is EJB? Enterprise Java Beans (EJB) is a commercial application component technology in JavaEE and one of the three major components of JavaEE (Servlet, JSP, EJB. EJB provides a framework for clients to use remote distributed objects, greatly simplifying the development of enterprise-level applications with good scalability. The EJB component structure is a distri

1 Description of the full name of the Java EE, industrial objectives.Java 2 Platform Enterprise EDITION,J2EE is an architecture that leverages the Java 2 platform to simplify the development, deployment, and management of enterprise solutions-related complex issues. The ultimate goal is to be an architecture that enables enterprise developers to dramatically reduce time-to-market.2 Describe the four-layer model of the Java EE, which layer does MVC bel

Cookie Version in J2EE Article: http://villadora.me/2014/05/06/cookie-version/ When processing the Cookie, it is found that the servlet request cannot be processed and the ":" character value in the cookie cannot be obtained. Cookie[] cookies = request.getCookies();if (cookies != null) { for (Cookie cookie : cookies) { if (StringUtils.equalsIgnoreCase(cookie.getName(), name)) { value = cookie.getValue(); // if the value in cookie

Label:Configure OEM Environment variables Oracle_unqname= $ORACLE _sid To open the OEM Web management program, you must first start database listener, and then start the Datebase control port monitor, but you encounter the following situationProblem:[Email protected] oc4j_dbconsole]$ emctl start dbconsoleTZ set to PRCOc4j Configuration issue. /U01/APP/ORACLE/PRODUCT/10.2.0/DB_1/OC4J/J2EE/OC4J_DBCONSOLE_LOCALHOST.LOCALDOMAIN_ORCL not found.In fact, the

Emctl Start DbconsoleError message:Oc4j Configuration issue. /U01/APP/ORACLE/PRODUCT/11.2.0/DBHOME_1/OC4J/J2EE/OC4J_DBCONSOLE_ORCL-DB-01_ORCL not found.Workaround:$EMCA-config Dbcontrol Db-repos recreate;Note: (Re-create Dbconsole: (if it is under Windows, to remove Dbconsole from the registry first (hkey_local_machine/system/currentcontrolset/services/ (oracledbconsole) service, restart the computer))On cue,Enter the SID first,Enter the listener port

Enterprises with geographically dispersed subsidiaries are geographically dispersed, resulting in scattered business data. The company and its subsidiaries are located in different cities or regions in different cities, in terms of business, apart from processing their own data, they also need to exchange and process data between them. The author discusses the framework model for building a distributed database system using J2EE technology. Distribute

administrator can perform configuration management for the entire Softswitch Network, for example: system meta parameter and performance configuration management) and daily maintenance work such as system billing information statistics and query); and common users such as: can be the owner of a SIP Phone ), the system can be used to dynamically change and manage the services applied for, such as long-distance calls, international long-distance calls, voice mailboxes, and call transfers.3