[Jsp] ServletConfig, ServletContext

servletContext - 다른 서블릿에서도 공유되는 내용.

servletConfig - 그 서블릿에서만 사용되는 내용

servletConfig 예제
<servlet> 
        <servlet-name>Hello</servlet-name> 
        <servlet-class>aaa.Aservlet</servlet-class> 
        <init-param> 
                <param-name>hello</param-name> 
                <param-value>Good</param-value> 
       </init-param>
</servlet> 
사용시 - String a=getInitParameter("hello"); 

 

 

servletContext 예제

 

    <context-param>

       <param-name>location</param-name>

       <param-value>/WEB-INF/A.txt</param-value>

    </context-param>

 

사용시 -

ServletContext context = getServletContext()    

String location = context.getInitParameter("location"); 

 

 

setAttrubute(), getAttribute()