What functions does servlet have?

The functions of servlet are: 1. Create and return dynamic content HTML pages containing the nature of client requests; 2. Create embeddable pages into existing HTML pages; 3. Communicate with other server resources; 4. , use multiple clients to handle connections and receive input from clients; 5. Provide customized processing to all server routines.

Servlet meaning:

Servlet extends the capabilities of the server by creating a framework to provide services on the Web Request and response services. When a client sends a request to the server, the server can send the request information to the Servlet and let the Servlet build the response that the server returns to the client. Servlets can be loaded automatically when the Web server is started or when a client requests a service for the first time. After loading, the servlet continues to run until other clients make requests.

Functions of Servlet:

(1) Create and return a complete HTML page containing dynamic content based on the nature of the customer's request.

(2) Create a portion of an HTML page (HTML fragment) that can be embedded into an existing HTML page.

(3) Communicate with other server resources (including databases and Java-based applications).

(4) Use multiple clients to handle connections, receive input from multiple clients, and broadcast the results to multiple clients. For example, a servlet could be a multi-participant game server. (5) When data transmission is allowed in single connection mode, open a new connection from the server to the applet on the browser and keep the connection open. Applets can also initiate connections between the client's browser and the server, allowing the client and server to perform sessions simply and efficiently. Communication can be done via custom protocols or standards such as IIOP.

(6) Use MIME type filtering data for special processing, such as image conversion and server-side includes (SSI).

(7) Standard routines that provide customized processing to all servers. For example, a servlet can modify how users are authenticated.

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