What changes are required in a servlet to handle multipart/form-data requests?
- Implement a custom parsing algorithm
- Implement doPost method
- No changes needed
- Set content type to multipart/form-data
To handle multipart/form-data requests, set the content type to multipart/form-data in the servlet. This allows the servlet to recognize and process multipart requests correctly, especially when dealing with file uploads or other complex data structures.
The __________ method invalidates the current session and removes its binding from the context.
- destroySession()
- endSession()
- invalidate()
- removeSession()
The invalidate() method invalidates the current session and removes its binding from the context.
A servlet's URL pattern is specified in the __________ element in the web application's deployment descriptor.
- servlet-mapping
- servlet-url
- url-mapping
- url-pattern
The url-pattern element in the web application's deployment descriptor is used to specify a servlet's URL pattern, mapping it to a particular servlet.
In servlets, thread-safety issues are often handled in the __________ method.
- destroy()
- doPost()
- init()
- service()
In servlets, thread-safety issues are often handled in the init() method.
To handle JSON data in a POST request, a servlet may need to parse the request body using a _________.
- HttpServletRequest
- HttpServletResponse
- JsonObject
- JsonReader
In a POST request, to handle JSON data, a servlet may need to parse the request body using a JsonObject.
The method ___________ is used to read a single initialization parameter in the servlet.
- fetchParameter()
- getInitParam()
- getInitParameter()
- readInitParameter()
The method getInitParameter() is used to read a single initialization parameter in the servlet.
To set the character encoding for the response body, use the __________ method of HttpServletResponse.
- setCharacterEncoding()
- setContentType()
- setEncoding()
- setResponseEncoding()
The setCharacterEncoding() method of HttpServletResponse is used to set the character encoding for the response body.
The __________ method of HttpServletResponse causes the browser to request a new URL.
- forward()
- include()
- refresh()
- sendRedirect()
The sendRedirect() method of HttpServletResponse causes the browser to request a new URL.
ServletConfig's getServletName() method returns the __________ of the servlet.
- ID
- alias
- handle
- name
ServletConfig's getServletName() method returns the name of the servlet.
To delete a cookie, the servlet should set its _________ to a past date.
- creation time
- domain
- expiration date
- path
To delete a cookie, the servlet should set its expiration date to a past date, making it immediately invalid.