Ruby中的Socket编程简单入门

require 'socket' # Sockets are in standard library
 
hostname = 'localhost'
port = 2000
 
s = TCPSocket.open(host, port)
 
while line = s.gets # Read lines from the socket
puts line.chop # And print with platform line terminator
end
s.close # Close the socket when done

require 'socket' # Get sockets from stdlib
 
server = TCPServer.open(2000) # Socket to listen on port 2000
loop { # Servers run forever
client = server.accept # Wait for a client to connect
client.puts(Time.now.ctime) # Send the time to the client
client.puts "Closing the connection. Bye!"
client.close # Disconnect from the client
}

require 'socket' # Get sockets from stdlib
 
server = TCPServer.open(2000) # Socket to listen on port 2000
loop { # Servers run forever
Thread.start(server.accept) do |client|
client.puts(Time.now.ctime) # Send the time to the client
client.puts "Closing the connection. Bye!"
client.close # Disconnect from the client
end
}

require 'socket'
 
host = 'www.tutorialspoint.com' # The web server
port = 80 # Default HTTP port
path = "/index.htm" # The file we want
 
# This is the HTTP request we send to fetch a file
request = "GET #{path} HTTP/1.0rnrn"
 
socket = TCPSocket.open(host,port) # Connect to server
socket.print(request) # Send request
response = socket.read # Read complete response
# Split response at first blank line into headers and body
headers,body = response.split("rnrn", 2)
print body # And display it

require 'net/http' # The library we need
host = 'www.tutorialspoint.com' # The web server
path = '/index.htm' # The file we want
 
http = Net::HTTP.new(host) # Create a connection
headers, body = http.get(path) # Request the file
if headers.code == "200" # Check the status code
print body
else
puts "#{headers.code} #{headers.message}"
end