Servlet API provides two important interfaces ServletResponse and HttpServletResponse to assist in sending response to client.
| Methods | Description |
|---|---|
PrintWriter getWriter() | returns a PrintWriter object that can send character text to the client. |
void setBufferSize(int size) | Sets the preferred buffer size for the body of the response |
void setContentLength(int len) | Sets the length of the content body in the response In HTTP servlets, this method sets the HTTP Content-Length header |
void setContentType(String type) | sets the content type of the response being sent to the client before sending the respond. |
void setBufferSize(int size) | sets the preferred buffer size for the body of the response. |
boolean isCommitted() | returns a boolean indicating if the response has been committed |
void setLocale(Locale loc) | sets the locale of the response, if the response has not been committed yet. |
HttpServletResponse interface adds the methods that relates to the HTTP response.
| Methods | Description |
|---|---|
void addCookie(Cookie cookie) | adds the specified cookie to the response. |
void sendRedirect(String location) | Sends a temporary redirect response to the client using the specified redirect location URL and clears the buffer |
int getStatus() | gets the current status code of this response |
String getHeader(String name) | gets the value of the response header with the given name. |
void setHeader(String name, String value) | sets a response header with the given name and value |
void setStatus(int sc) | sets the status code for this response |
void sendError(int sc, String msg) | sends an error response to the client using the specified status and clears the buffer |
