October 2024
Intermediate to advanced
638 pages
15h 47m
Spanish
Content preview from Libro de cocina de Java, 4ª edición
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Capítulo 13. Java del lado del servidor
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13.0 Introducción
Los sockets son la base de casi todos los protocolos de red. JDBC, RMI, CORBA, EJB y los protocolos no Java RPC (Llamada a Procedimiento Remoto) y NFS (Sistema de archivos de red) se implementan conectando entre sí varios tipos de sockets. Las conexiones de socket pueden implementarse en casi cualquier lenguaje, no sólo en Java: C, C++, Perl y Python también son populares, y muchos otros son posibles. Un cliente o servidor escrito en cualquiera de estos lenguajes puede comunicarse con su opuesto escrito en cualquiera de los otros lenguajes. Por lo tanto, merece la pena echar un vistazo rápido a cómo se comporta el ServerSocket, aunque acabes utilizando los servicios de más alto nivel, como RMI, JDBC, CORBA o EJB.
La discusión se centra primero en el propio ServerSocket, y después en la escritura de datos a través de un socket de varias formas. Por último, muestro una implementación completa de un servidor de red utilizable escrito en Java: el servidor de chat del cliente del capítulo anterior.
Consejo
La mayor parte del trabajo de producción en Java del lado del servidor utiliza la Java Enterprise Edition (Java EE), recientemente transferida de Oracle a la Eclipse Software Foundation y rebautizada como Yakarta, pero ampliamente conocida por el nombre anterior (y ocasionalmente por su nombre muy antiguo, ...
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