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Java Servlet Programming, 2nd Edition
book

Java Servlet Programming, 2nd Edition

by Jason Hunter, William Crawford
April 2001
Intermediate to advanced content levelIntermediate to advanced
780 pages
23h 48m
English
O'Reilly Media, Inc.
Content preview from Java Servlet Programming, 2nd Edition

Appendix D. HTTP Status Codes

HTTP status codes are grouped as shown in Table D-1.

Table D-1. HTTP Status Code Groupings

Code Range

Response Meaning

100-199

Informational

200-299

Client request successful

300-399

Client request redirected, further action necessary

400-499

Client request incomplete

500-599

Server error

Table D-2 lists the HTTP status code constants defined by the HttpServletResponse interface and used as parameters to its setStatus( ) and sendError( ) methods. The version number in the last column refers to the HTTP protocol version that first defined the status code. Servlet API 2.0 added constants for HTTP Version 1.1 status codes as specified in the proposed standard RFC 2068; Servlet API 2.2 added status codes 416 and 417 as specified in the draft standard RFC 2616. Note that HTTP/1.1 status codes require an HTTP/1.1-compliant browser.

For more information on HTTP, see the book Web Client Programming by Clinton Wong (O’Reilly). The latest HTTP/1.1 specification is available in RFC 2616 at http://www.ietf.org/rfc/rfc2616.txt.

Table D-2. HTTP Status Code Constants

Constant

Code

Default Message

Meaning

HTTP Version

SC_CONTINUE

100

Continue

The server has received the initial part of the request and the client can continue with the remainder of its request.

1.1

SC_SWITCHING_PROTOCOLS

101

Switching Protocols

The server is willing to comply with the client’s request to switch protocols to the one specified in the request’s

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Publisher Resources

ISBN: 0596000405Supplemental ContentErrata Page