November 1998
Intermediate to advanced
526 pages
14h 38m
English
Content preview from Java Servlet Programming
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Appendix C. HTTP Status Codes
HTTP status codes are grouped as shown in Table 3.1.
Table C-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 3.2 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. The Servlet API 2.0 added constants for HTTP Version
1.1 status codes. Note that HTTP 1.1 status codes require an HTTP
1.1-compliant browser.
For more information on HTTP, see Web Client Programming by Clinton Wong (O’Reilly). The proposed HTTP/1.1 specification is available in RFC 2068 at http://www.ietf.org/rfc/rfc2068.txt.
Table C-2. HTTP Status Code Constants
|
Constant |
Code |
Default Message |
Meaning |
HTTP Version |
|---|---|---|---|---|
|
|
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 |
|
|
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
|
1.1 |
|
|
200 |
OK |
The client’s request was successful and the server’s response ... |
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