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18 related questions found

What replaces servlets?

Here are some alternatives to servlets:

• Common Gateway Interface (CGI) is the most typical server-side solution. …
• Proprietary API. Many proprietary web servers have built-in support for server-side programming. …
• Active Server Pages (ASP) …
• Server-side JavaScript.

What is servlet content?

Content types are also known as MIME types. MIME stands for Multipurpose Internet Mail Extension. It is an HTTP header that provides a description of what you are sending to the browser (such as sending images, text, video, etc.).

Which of the following is the correct order to use servlets?

the answer is »init(), service(), destroy()« 

What is destroy method in servlet?

Call destroy() method Indicates to the servlet by the servlet container that the servlet is stopping service. This method is called only after all threads in the servlet’s service method have exited or the timeout period has elapsed.

How many times will the init() destroy() service() method be called?

This method accepts two parameters. destroy() method: destroy() method is only called once. It is called at the end of the servlet’s life cycle.

How to call the servlet?

You can call the servlet in the following way Address it directly from a web page with a URL Or by calling it programmatically from an already running servlet.

How are servlets created?

A servlet example can be created in three ways: By implementing the Servlet interface, By inheriting from the GenericServlet class(or) By extending the HttpServlet class.

What is the Init method in a servlet?

Called by the servlet container to indicate to the servlet that the servlet is in use. The servlet container calls the init method exactly once after instantiating the servlet. The init method must complete successfully before the servlet can receive any requests.

What is a servlet container?

a web container (Also called servlet container; compare « webcontainer ») is the component of the web server that interacts with the Jakarta Servlet. … The web container handles requests for servlets, Jakarta Server Pages (JSP) files, and other types of files that contain server-side code.

What is a JSP page in Java?

JavaServer Pages (JSP) Yes A Java standard technology that enables you to write dynamic, data-driven pages for Java web applications. JSP is built on top of the Java Servlet specification. These two technologies often work together, especially in older Java web applications.

Which is not an instruction?

9. Which is not an instruction? explain: Export not instructions.

What is the specific function of destroy method?

Use the destroy() method of the thread class Destroy a thread group and all its subgroups. The thread group must be empty, indicating that all threads in the thread group are stopped.

When will init() and destroy() be called?

3.3. Initialization and destruction​​. Like applets, servlets can define init() and destroy() methods. A servlet’s init(ServletConfig) method is called by the server immediately after the server constructs an instance of the servlet.

When is the filter’s destroy method called?

d) of destroyer() method Called after the filter is executed. Description: destroy() is a method at the end of the life cycle, so it is called at the end of the life cycle. 8.

for reading data from client requests?

Read form data from the servlet you use get parameters Sending data via GET works exactly the same way as when sending data via POST. The servlet knows which request method was used and automatically performs the correct action behind the scenes.

When is the servlet’s Init method called?

8. When is the servlet’s init() method called?Create init method is called Only one time. When the servlet is first loaded into memory, the call goes to the init method, since it is loaded once, it is not called again for every user request.

Is a servlet a web service?

Servlet is API, it is Simple and provides the ability to write server-side components. The Web Service uses the ServletContainer class, which in turn is a servlet class, which handles requests in a clean and structured way. REST stands for REpresentational STateless Protocol.

What are the two main types of servlets?

There are two main servlet types, generic and HTTP:

• Generic servlet. Extends javax.servlets. Generic Servlet. is protocol independent. …
• HTTP servlet. Extends javax.servlets. HttpServlet. Has built-in HTTP protocol support, more useful in a Sun Java System Web Server environment.

Is a servlet a framework?

Servlet API is The foundation of almost all Java Web View technologies. Servlet provides the basic mechanism for writing Java classes for Web applications. Servlets can respond to HTTP requests, create cookies, and maintain sessions.