December 2015
Intermediate to advanced
292 pages
6h 16m
English
Content preview from Learning Network Programming with JavaBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The nature of HTTP messages
Let's examine the format of an HTTP message. Messages are either a request message sent from a client to a server, or a response message sent from a server to a client. Based on an understanding of the format, we will show you how Java supports these messages. HTTP messages are, for the most part, readable by humans. Both the request and response messages use this structure:
- A line indicating the type of message
- Zero or more header lines
- A blank line
- An optional message body containing data
The following is an example of an HTTP request:
GET /index HTTP/1.0
User-Agent: Mozilla/5.0
A client request message consists of an initial request line and zero or more header lines. A response message consists of an initial response ...
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