什么是 Java Servlet? [英] What is Java Servlet?

问题描述

我阅读了很多文章来了解 Java servlet，但我没有成功.

I read many articles to understand Java servlet but I did not succeed.

能否请您简要介绍一下 Java servlet(用简单的语言).什么是servlet?有什么优势?

Can you please give brief introduction of Java servlets (in easy language). What is a servlet? What are the advantages?

我无法理解服务器端编程语言(PHP、ASP)和 servlet 之间的区别.

I can't understand the difference between server-side programming languages (PHP, ASP) and servlets.

推荐答案

servlet 只是一个响应特定类型网络请求的类——最常见的是 HTTP 请求.基本上，servlet 通常用于实现 Web 应用程序 - 但也有各种框架在 servlet(例如 Struts)之上运行，以提供比这是一个 HTTP 请求，写入此 HTTP 响应"级别更高级别的抽象，servlet提供.

A servlet is simply a class which responds to a particular type of network request - most commonly an HTTP request. Basically servlets are usually used to implement web applications - but there are also various frameworks which operate on top of servlets (e.g. Struts) to give a higher-level abstraction than the "here's an HTTP request, write to this HTTP response" level which servlets provide.

Servlet 运行在 servlet 容器中，该容器处理网络端(例如解析 HTTP 请求、连接处理等).最著名的开源 servlet 容器之一是 Tomcat.

Servlets run in a servlet container which handles the networking side (e.g. parsing an HTTP request, connection handling etc). One of the best-known open source servlet containers is Tomcat.

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