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Hodnocené. / 5. Na základě hodnocení zákazníků
Chapter 3: Creating applications with J2EE technologies 17
Web-centric applications
Web-centric applications
There are times when your application just doesn’t need to use enterprise beans and if
you do so, you add a layer of complexity. If your application doesn’t require
transactions on a distributed system, consider a web-centric application model:
This scenario puts both the presentation and business logic on the web tier. The web
container can host JavaServer Pages and servlets. The client is simply a browser and
data is transferred using XML, HTTP protocol, and/or HTML pages. Servlets can
access the EIS tier, when necessary, using JDBC or connectors. Applications using
this type of architecture are quite common.
Business to business
When you need a web-based commerce solution, consider the business-to-business
model. This might include multiple web containers and multiple EJB containers.
Web container to web container architecture is suitable for ecommerce solutions.
Communication takes place through XML data message over HTTP. Such applications
are very loosely coupled.
Peer-to-peer communication between EJB containers offers a more tightly coupled
model that works well for intranet solutions. In these types of applications, seriously
consider using message-driven enterprise beans and Java Message Service (JMS),
which enable you to develop loosely coupled applications.
- JBuilder 1
- Contents 3
- Building J2EE modules 115 5
- Introduction 7
- Online resources 9
- World Wide Web 9
- Borland newsgroups 9
- Usenet newsgroups 10
- Reporting bugs 10
- Enterprise Edition 11
- How JBuilder can help 15
- Other J2EE technologies 16
- Learning about J2EE 17
- Client-server applications 20
- Multi-tier applications 21
- Stand-alone clients 21
- Java client calling EJBs 22
- Web-centric applications 23
- Business to business 23
- Configuring the target server 25
- This is a feature of 26
- JBuilder Developer 26
- Adding a service pack 28
- The created libraries 29
- Selecting a server 30
- Setting up JDBC drivers 32
- /lib directory with the 33
- InterClient.config) 33
- /lib/ext directory 33
- Changing the management port 43
- Remote deploying 46
- Remote debugging 47
- Edition 5.2.1 is running 48
- Web module workarounds 49
- International issues 50
- Using JBuilder’s CORBA tools 51
- -Dvbroker.agent.port=14000 53
- Configuring the OrbixWeb ORB 56
- Adding a new configuration 57
- _tie classes when the IDL 61
- _tie classes will be 61
- Using the CORBA wizards 63
- CORBA Server Interface wizard 64
- HTML CORBA Client wizard 64
- Use CORBA Interface wizard 65
- Service packs 67
- Working in JBuilder 72
- Starting the server 73
- <HOST 75
- NAME>:<port number> 75
- Deploying 83
- WebSphere Server 4.0 84
- Enabling remote debugging 85
- WebSphere Single Server 4.0 86
- -Djava.compiler=NONE 87
- Deploying locally 95
- JSP debugging 97
- Using JBuilder with Tomcat 99
- <jbuilder>/ 100
- Starting Tomcat 102
- Stopping Tomcat 102
- Changing Tomcat’s port number 103
- Editing J2EE deployment 105
- Displaying the DD Editor 106
- 2 Select the Build node 110
- 4 Choose OK 110
- Integrating with Enterprise 111
- Information Systems 111
- 2 Click Next to see Step 2: 112
- Connector1 RAR 116
- Authentication Mechanism page 118
- Configuration Property page 119
- Security Permission page 119
- Server-specific pages 120
- Building J2EE modules 121
- File type filters 122
- Class and resource filters 122
- Adding custom file types 123
- Sample build scenarios 124
- WAR without any classes 125
- WAR with custom class filters 125
- WAR with custom file types 125
- EAR with custom files 126
- Web modules 127
- Index 123 129
- Index 125 131
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