|
EDA365欢迎您登录!
您需要 登录 才可以下载或查看,没有帐号?注册
x
) [8 u/ @' A# D' P
请教大神,
7 i' R6 A$ g# Jfunction server(message, input_port, number_of_retries)" I7 S5 _. L* C* u! J7 v
import java.net.Socket) h9 v& r, s& N, E, e0 O' `/ b
import java.net.ServerSocket
, t: r# }9 P. _; e import java.io.*' r* a& w$ B+ ~( V
& K: Y6 ]! E0 b# F: x
if (nargin < 3)
9 i* l' ~ @* \+ I6 ^- T& I number_of_retries = 20; % set to -1 for infinite. ]( ^) m/ D. N. b2 d+ B
end
% j+ B& n! Q* W F- [ retry = 0;/ U( @$ H0 ^3 N- A3 Y
8 P6 Q2 x7 L5 ]
server_socket = [];0 I( b" q# Z& ? [) h3 E
input_socket = [];' o0 {. j, m6 ]) i- N! Z2 {: T/ g
server = [];
4 z Y% M. ^8 i( S5 ] s; s+ o while true
, _+ N$ @( Y* M' u/ ]" o; I" y6 s2 P1 o- i
retry = retry + 1;' ~8 ?* H# C8 A9 v2 d% G- X
1 F$ J" I* T" w; v3 L) J k
try# d3 y2 e( q% P" q, N0 e/ @' w/ j# X$ D
if ((number_of_retries > 0) && (retry > number_of_retries))$ j0 O! d* X2 D! d `# s! A" e+ c
fprintf(1, 'Too many retries\n');
- _6 m, Q' w" F0 E9 \% Q4 l break;
" M! O, ^ E" N& W) j1 P end
! h+ m- _. ~0 s: }) L( V
: j+ T, \% e3 O: m' [ fprintf(1, ['Try %d waiting for client to connect to this ' ...
v1 H! O" H" I( y 'host on port : %d\n'], retry, input_port);%listen
" F+ w0 R' j$ d! O7 p2 ]% r* {/ X/ W. V- x; d" D9 b
% wait for 1 second for client to connect server socket' Y: u! b3 l0 ?3 q7 d
server_socket = ServerSocket(input_port);' L1 ]0 l) A$ W" h4 A4 n
server_socket.setSoTimeout(1000);
, U# J8 N& O1 G
) l# w7 Y! R7 E& c; _ input_socket = server_socket.accept;
" g, g: u9 n# g4 B$ @
+ q& w3 s$ z/ g6 A& c fprintf(1, 'Client connected\n');%acceppt3 I8 H1 r9 A u, x4 ~4 E: A
pause(1.5);/ T3 G9 i+ @$ f* T, w1 r
% get a buffered data input stream from the socket
8 |( r- p0 |2 }2 l; C6 | input_stream = input_socket.getInputStream;%获得网络连接输入,返回inputstream
4 W. M- Z! P2 s) Y d_input_stream = DataInputStream(input_stream);
+ Y% Z/ C% } x. l c9 o/ _
% }' Y }* h+ h% L. ?* _ T % read data from the socket - wait a short time first5 R7 v* U; M4 s3 D/ G
pause(4.5);
9 A8 r6 E' ~' x7 H2 {2 g bytes_available = input_stream.available;+ Y1 H3 _& Y/ ~$ |: ], l3 y
fprintf(1, 'Reading %d bytes\n', bytes_available);
Y/ J1 V2 X1 ]" F0 o6 B8 h3 j* L9 f. U4 }( S' y9 S! v
server= zeros(1, bytes_available, 'uint8');2 o2 l5 Z' \4 c1 |6 m8 J
for i = 1:bytes_available/ ^& b& d4 K* }9 L* T: q
server(i) = d_input_stream.readByte;4 G( c/ w4 |. D* F
end7 x5 r( C8 L& @* m4 V
& u& W/ s) R9 y# }. I5 | i server = char(server);) D( E+ ^' e) N1 g
8 A* }; T2 S g4 }: ?. q5 ]) O& s; g
%接收结束关闭socket / d3 |) W" l5 ?; `7 w: G( ~
catch
7 H, y8 F' n/ E) c% H" k1 p! c1 u7 A if ~isempty(server_socket)3 J$ [/ X" h) X$ m% T3 h
server_socket.close, p4 Z- N8 _6 }9 H! `. A( D
end
8 A+ M) h z! E1 w1 q$ d) c q
" r) G" w$ B. m; {) R# q/ w1 Y if ~isempty(input_socket)
7 W0 A! ^' C7 K3 F0 a# ~ input_socket.close1 O& n" E; ^, X8 K, w/ \2 }
end* ^2 C1 e, a* H; d7 k
( i- U: y' Q' e" [7 |: ? % pause before retrying# I0 G1 E% O; L0 ^5 v4 Z
pause(1);& J4 {5 l( i# p. U6 q
end" B7 x: y. w9 ^
end
' f. H( D' E7 O4 g2 n2 x0 B% x# lend0 I, X& f' O8 y+ Y+ e
此程序运行后能得到读取到数据了,那么数据是在input_stream里吗?怎么把里面的数据显示到GUI上?非常感谢!/ ~2 c1 z0 f/ } T4 z; W7 Q6 m0 c8 A1 U
|
|