Java-ServletConfig

/**
*
* A servlet configuration object used by a servlet container
* to pass information to a servlet during initialization.
*
*/
//servlet 配置对象被servlet 容器来发送信息给servlet在初始化过程中
public interface ServletConfig {

/**
* Returns the name of this servlet instance.
* The name may be provided via server administration, assigned in the
* web application deployment descriptor, or for an unregistered (and thus
* unnamed) servlet instance it will be the servlet's class name.
*
* @return		the name of the servlet instance
*/
//servlet 实例的名称
public String getServletName();

/**
* Returns a reference to the {@link ServletContext} in which the caller
* is executing.
* @return		a {@link ServletContext} object, used
*			by the caller to interact with its servlet
*                  container
* @see		ServletContext
*
*/
//返回servlet上下文
public ServletContext getServletContext();

/**
* Returns a <code>String</code> containing the value of the
* named initialization parameter, or <code>null</code> if
* the parameter does not exist.
*
* @param name	a <code>String</code> specifying the name
*			of the initialization parameter
*
* @return		a <code>String</code> containing the value
*			of the initialization parameter
*
*/
//返回某个name的参数值
public String getInitParameter(String name);

/**
* Returns the names of the servlet's initialization parameters
* as an <code>Enumeration</code> of <code>String</code> objects,
* or an empty <code>Enumeration</code> if the servlet has
* no initialization parameters.
*
* @return		an <code>Enumeration</code> of <code>String</code>
*			objects containing the names of the servlet's
*			initialization parameters
*
*
*
*/
//把servlet初始参数值作为一个枚举对象返回
public Enumeration getInitParameterNames();

}