javax.servlet.ServletContext翻译

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javax.Servlet
Interface ServletContext

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public interface ServletContext

Defines a set of methods that a servlet uses to communicate with its servlet container, for example, to get the MIME type of a file, dispatch requests, or write to a log file. 定义了一组方法，servlet用来和它的servlet容器通信，比如，获得文件的MIME类型，分配请求，或者输出日志文件。

There is one context per "Web application" per Java Virtual Machine. (A "web application" is a collection of servlets and content installed under a specific subset of the server's URL namespace such as /catalog and possibly installed via a .war file.) 每个Java虚拟机的每个web应用都会有一个context。（一个web应用是指安装在服务器的URL命名空间的子集下（比如/catalog）也有可能通过.war文件安装的一组 servlet和内容的组合）。

In the case of a web application marked "distributed" in its deployment descriptor, there will be one context instance for each virtual machine. In this situation, the context cannot be used as a location to share global information (because the information won't be truly global). Use an external resource like a database instead. 如果web应用在它的部署描述符中标记为“distributed”，那么每一个虚拟机将只有一个context实例。在这种情况下，context不会用来作为全球共享信息的地址（因为信息不可能真的全球共享），而是使用外部的资源，比如数据库来替代。

The ServletContext object is contained within the ServletConfig object, which the Web server provides the servlet when the servlet is initialized. ServletContext对象被包含于ServletConfig对象内，该对象由servlet初始化时web服务器提供给servlet。

Version:

$Version$

Author:

Various

See Also:

Servlet.getServletConfig(), ServletConfig.getServletContext()

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Method Summary Object getAttribute(String name)
Returns the servlet container attribute with the given name, or null if there is no attribute by that name. 返回给定名称的的servlet容器属性，如果没有该名称的属性，返回null。 Enumeration getAttributeNames

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