JAVA ADVANCE
JDBC
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JDBC programs are platform and Vendor independent. |
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JDBC components inter-operate with Database and connects via JDBC - ODBC bridges. |
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You can use JDBC in both applications and applets. |
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Database vendors and database tool vendors can supply the low level drivers. Thus, they can optimize their drivers for their specific products. |
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With JDBC you can write useful programs to handle realistic database chores. |
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It's the only component architecture you should consider if you're developing for the Java platform. |
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The JavaBeans architecture takes inter-operability, a major step forward so that your code runs on every OS and also within any application environment. |
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JavaBeans components inter-operate with ActiveX and connects via ActiveX-JavaBeans bridges. |
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It's the ideal choice for developing or assembling network-aware solutions for heterogeneous hardware and operating system environments within the enterprise or across the Internet. |
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JavaBeans component architecture extends "Write Once, Run AnywhereTM" capability to reusable component development. |
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A beans developer secures a future in the emerging network software market without losing customers that use proprietary platforms. |
Java-Servlet
Servlets are used for Server-Side Programming. Servlets are generic extensions to Java-enabled servers. Their most common use is to extend Web servers, providing a very secure, portable and easy-to-use replacement for CGI. A Servlet is a dynamically loaded module that services requests from a Web server. It runs entirely inside the Java Virtual Machine.
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Processing data posted over https using an HTML form, including purchase order or credit card data. A servlet like this could be part of an order-entry and processing system, working with product and inventory databases, and perhaps an on-line payment system. |
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Allowing collaboration between people. A servlet can handle multiple requests concurrently; they can synchronize requests to support systems such as on-line conferencing. |
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Forwarding requests. Servlets can forward requests to other servers and servlets. This allows them to be used to balance load among several servers that mirror the same content. It also allows them to be used to partition a single logical service over several servers, according to task type or organizational boundaries. |
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Being a community of active agents. A servlet writer could define active agents that share work among each other. Each agent would be a servlet, and the agents could pass data among themselves. |
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Create JDBC connection pool. |
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Create an Online Catalog System. |
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Developing E-Commerce "store fronts" will become one of the most common uses for Java Servlets. |
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Servlets can be used to deploy Websites that open up large legacy systems on the Internet. |
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Servlet Overview & Architecture. |
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Servlet Basics. |
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Servlet & Html. |
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SSI (Server - Side Include). |
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Servlet chaining. |
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Servlet & the JDBC. |
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Servlet Beans. |
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Java server Pages. |
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Servlets as Distributed Object Clients. |
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Servlet Session. |