[python&php 网络编程]socket的错误捕捉

来源：互联网发布：去眼袋方法知乎编辑：程序博客网时间：2024/05/08 22:24

1.python写法

import sysimport socketimport argparse def main():    # setup argument parsing    parser = argparse.ArgumentParser(description='Socket Error Examples')    parser.add_argument('--host', action="store", dest="host", required=False)    parser.add_argument('--port', action="store", dest="port", type=int, required=False)    parser.add_argument('--file', action="store", dest="file", required=False)    given_args = parser.parse_args()    host = given_args.host    port = given_args.port    filename = given_args.file        # First try-except block -- create socket     try:        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    except socket.error, e:        print "Error creating socket: %s" % e        sys.exit(1)        # Second try-except block -- connect to given host/port    try:        s.connect((host, port))    except socket.gaierror, e:        print "Address-related error connecting to server: %s" % e        sys.exit(1)    except socket.error, e:        print "Connection error: %s" % e        sys.exit(1)        # Third try-except block -- sending data    try:        s.sendall("GET %s HTTP/1.0\r\n\r\n" % filename)    except socket.error, e:        print "Error sending data: %s" % e        sys.exit(1)        while 1:        # Fourth tr-except block -- waiting to receive data from remote host        try:            buf = s.recv(2048)        except socket.error, e:            print "Error receiving data: %s" % e            sys.exit(1)        if not len(buf):            break        # write the received data        sys.stdout.write(buf)     if __name__ == '__main__':    main()

2.php写法

<?php// First try-except block -- create socket$socket = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP);if ($socket === false) {    printf("Error creating socket: %s\n", socket_strerror(socket_last_error()));    exit;}// Second try-except block -- connect to given host/port$address = '127.0.0.1';$port = 8888;$file = '~/test_file.txt';$len = strlen(file_get_contents($file));$connect = @socket_connect($socket, $address, $port);if ($connect === false) {    printf("Error connect socket: %s\n", socket_strerror(socket_last_error($socket)));    exit;}// Third try-except block -- sending datatry {    //socket_send和python socket的sendall一样会告诉我们    $sent = @socket_send($socket, $file, $len, MSG_WAITALL);} catch (Exception $e) {    printf("Error sending data: %s\n", $e->getMessage());}# Fourth tr-except block -- waiting to receive data from remote hostwhile (1) {    if (false !== ($bytes = socket_recv($socket, $file, 2048, MSG_WAITALL))) {        printf("Read %s bytes from socket_recv(). Closing socket...", $bytes);    } else {        printf("Error receiving data: %s\n" . socket_strerror(socket_last_error($socket)));    }}

python如果提示argparse这个库没有的话，请使用pip install argparse来安装，php我在pecl上搜了下，php貌似没有想python的argparse这样的库，据说pear有个叫command line的包，不过我没有试过，毕竟 php直接以php-cli方式运行的情况不多，所以这个功能对于php也没有多大的意义，以变量代替吧～

python对于socket的错误捕捉，已经有现成的Exception class，而php可以使用socket_last_error来捕捉错误，try catch到Exception类也可以有相关提示，但是socket_last_error会更具体～

转载请标注原文地址：http://blog.csdn.net/ddjohn/article/details/49992391

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