What is difference between ServletContext and ServletConfig?
Table of Contents
- 1 What is difference between ServletContext and ServletConfig?
- 2 What is a ServletContext?
- 3 What is diff between JSP and servlet?
- 4 How can I get ServletContext and ServletConfig object in a spring bean?
- 5 Which of the following statement about the difference between ServletConfig and ServletContext is valid?
- 6 Is ServletContext object an interface or class?
- 7 Why JSP is used instead of servlet?
- 8 What is WebApplicationContext in spring?
What is difference between ServletContext and ServletConfig?
The ServletConfig parameters are specified for a particular servlet and are unknown to other servlets. It is used for intializing purposes. The ServletContext parameters are specified for an entire application outside of any particular servlet and are available to all the servlets within that application.
What is a ServletContext?
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. There is one context per “web application” per Java Virtual Machine.
What does ServletConfig interface do?
Servlet Container creates ServletConfig object for each Servlet during initialization, to pass information to the Servlet. This object can be used to get configuration information such as parameter name and values from deployment descriptor file(web. xml).
What is diff between JSP and servlet?
Difference between Servlet and JSP
| Servlet | JSP |
|---|---|
| Servlet is a java code. | JSP is a html based code. |
| Writing code for servlet is harder than JSP as it is html in java. | JSP is easy to code as it is java in html. |
| Servlet plays a controller role in MVC approach. | JSP is the view in MVC approach for showing output. |
How can I get ServletContext and ServletConfig object in a spring bean?
There are two ways to get Container specific objects in the spring bean:
- Implementing Spring *Aware interfaces, for these ServletContextAware and ServletConfigAware interfaces.
- Using @Autowired annotation with bean variable of type ServletContext and ServletConfig .
What is the difference between web server and web container?
The main difference between the web containers and application server is that most web containers such as Apache Tomcat implements only basic JSR like Servlet, JSP, JSTL wheres Application servers implements the entire Java EE Specification. Every application server contains web container.
Which of the following statement about the difference between ServletConfig and ServletContext is valid?
The servletconfig object refers to the single servlet whereas servletcontext object refers to the whole web application. ServletConfig is implemented by the servlet container to initialize a single servlet using init(). That is, you can pass initialization parameters to the servlet using the web.
Is ServletContext object an interface or class?
The object of ServletContext provides an interface between the container and servlet.
How can I get ServletContext and ServletConfig objects in a spring bean?
Why JSP is used instead of servlet?
1 Answer. The main advantage of JSP is that it’s are easier to code and to read when you are creating a dynamic HTML front-end. That’s because you write mainly HTML and in some places embed Java code. In a servlet you would have to invert the logic, ie, write java code and print HTML.
What is WebApplicationContext in spring?
WebApplicationContext in Spring is web aware ApplicationContext i.e it has Servlet Context information. In single web application there can be multiple WebApplicationContext. That means each DispatcherServlet associated with single WebApplicationContext. xml will be common for all the servlet configuration files.