Template:HTML and HTTP
HTML and HTTP
Http is a stateless protocol. There is mo mechanism built in to the protocol that allows the server to remeber clients or requests. An http simply responds to http verbs GET, POST, PUT, DEL, TRACE etc. contained in RFC 2068 HTTP/1.1
regular html forms post information using forms in 2 ways with a get or a post http request.
Get
- Get send information to the server using the URI. Limited to 1024 character in some browsers and servers.
Example http://iam.colum.edu/oop/classsource/class9/simpleGet.html simpleGet.html - source
The simpleGet.html pages form has the action of 'simpleGet.aspx' this mean that when the form is submitted the browser will request the 'simpleGet.aspx' with whatever parameters are in the form. Since the method = get these pararmeters will show up are query string parameters
URI and querystring parameters
URI - Universal Resource Identifier http://src.doc.ic.ac.uk/computing/internet/rfc/rfc1630.txt RFC1630
Http URI
| Protcol | Host | Port | Path | File | Fragment identifier | Querystring |
|---|---|---|---|---|---|---|
| http:// | info.cern.ch | :8000 | /imaginary/test/ | file.html | #link | ?test=yes |
Post
- Post posts the variables in the HTTP Header.
Example http://iam.colum.edu/oop/classsource/class9/simplePost.html simplePost.html - source
FirstName: LastName: Header Name Value HttpMethod GET Connection keep-alive Keep-Alive 300 Accept text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Accept-Encoding gzip,deflate Accept-Language en-us,en;q=0.5 Cookie ASP.NET_SessionId=ezfgw255ix0zd5yogj3eawej Host imdev Referer http://imdev/infod/jeff/ User-Agent Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1
REST
- Representational state transfer
https://www.ibm.com/developerworks/webservices/library/ws-restful/
