Tomcat Reading Notes

HTTP

1. the client who initiates a transcation by establishing a connection and seding an HTTP request.  

2. the web server is in no position to contact a clinet or make a callback connection to the client.

3. either client or the server can terminate a connection.

   so, there is no Message PUSH in HTTP.

HTTP 1.1

• GET, POST, HEAD,OPTIONS,PUT,DELETE and TRACE