Advanced Java Networking by Dick Steflik

By Dick Steflik

Complicated Java Networking, moment variation - a superb advent to sockets, RMI, IDL/CORBA, JDBC, and different APIs - surveys all of the how one can create cutting-edge server-side options with Java. in case you are a developer or architect, this e-book might be useful construct scalable web solutions.Advanced Java is awesome in a minimum of methods. in the beginning, it offers each one Java networking API with actual intelligence and exuberance. The authors of the second one version (who have revised the ebook completely) turn out they've got massive instructing adventure by means of together with lots of fascinating examples. an analogous program (for an easy appointment-scheduling software) is used through the textual content. You how to use sockets, RMI, IDL/CORBA, or even servlets and JSPs to construct various types of an identical program. This comparative strategy delivers a feeling of the strengths of every API. (A ultimate bankruptcy right here outlines whilst to exploit every one API, reckoning on your layout needs.)Besides hands-on coding examples, a number of chapters current a high-level advent to new Java APIs like JINI, naming companies, and JNDI, plus EJBs and community administration with JMAP. in most cases, this booklet moves a very good stability among explaining the underlying expertise in the back of every one Java API, and supplying uncomplicated pattern code to aid get you all started. whenever you definitely needn't use each networking API for each venture, this name introduces all of them so you might select the easiest technique. the recent version of complex Java Networking programs a very good mixture of pattern code and technological services - of worth in identifying the easiest strategies for networking on cutting-edge Java platform.

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Sample text

The general idea of RMI is that every network object consists of a client piece and a server piece. Wouldn't it be nice if this object could be treated (from an application's standpoint) just like any local object. RMI provides an infrastructure that does just that. The main complaint about RMI comes from the fact that the protocol is not openly developed or published. Because of the complaints over this, Sun Microsystems has agreed to base client/server communications on IIOP in some future release of RMI.

Using TCP the client connects to the Daytime port (13) on the remote host; the remote host accepts the connection, returns its current date and time, and closes the connection. This can be easily demonstrated using the Windows 95 Telnet client. Open up the Telnet client and click on Connect and the Remote System. Enter in the address of your host that provides the Daytime service, select the Daytime port, and click Connect. Notice that a date/timestamp is displayed in the client area and that a small dialog box indicates that the connection to the host has been lost.

Each program reads from and writes to a socket in much the same way that you open, read, write to, and close a file. , User Datagram Protocol) An important difference between TCP connection sockets and UDP datagram sockets is that TCP makes sure that everything you send gets to the intended destination; UDP, on the other hand, does not. Much like mailing a letter, it is up to you, the sender, to check that the recipient received it. The difference between the two protocols is very similar to comparing the differences between using the phone to talk to friends and writing them letters.

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