Java-jsp Built-in objects

Related information:
"21-Day Learning Java Web Development"

Request Object Type Javax.servlet.ServletRequest Scope request
Response Response Object Type Javax.servlet.SrvletResponse Scope page
PageContext Page Context object type Javax.servlet.jsp.PageContext Scope page
Session Object Type Javax.servlet.http.HttpSession scope session
Application Application Object type Javax.servlet.ServletContext scope application
out Output Object Type Javax.servlet.jsp.JspWriter Scope page
Config Configuration object Type javax.servlet.ServletConfig Scope page
Page Object Type javax.lang.Object Scope page
exception Exception Object type javax.lang.Throwable Scope page

Classification
First Category: Built-in objects related to Servlets
Page Config

Type II: Built-in objects related to Input/output
Out Request response

Third Category: Context-related built-in objects
Session Application PageContext

Class Fourth: Built-in objects related to error
exception

Java-jsp Built-in objects