{"id":2746,"date":"2011-03-20T17:21:25","date_gmt":"2011-03-20T09:21:25","guid":{"rendered":"http:\/\/edsionte.com\/techblog\/?p=2746"},"modified":"2011-03-20T18:13:41","modified_gmt":"2011-03-20T10:13:41","slug":"linux%e4%b8%8b%e7%9a%84socket%e7%bc%96%e7%a8%8b-%e5%9f%ba%e4%ba%8eqt%e7%9a%84%e5%ae%a2%e6%88%b7%e7%ab%af","status":"publish","type":"post","link":"http:\/\/edsionte.com\/techblog\/archives\/2746","title":{"rendered":"Linux\u4e0b\u7684socket\u7f16\u7a0b-\u57fa\u4e8eQt\u7684\u5ba2\u6237\u7aef"},"content":{"rendered":"

\u4e0a\u6587\u4e2d\u5bf9\u9762\u5411\u8fde\u63a5\u7684C\/S\u6a21\u578b\u4e2d\u7684\u670d\u52a1\u5668\u8fdb\u884c\u4e86\u7b80\u5355\u63cf\u8ff0\uff0c\u672c\u6587\u5c06\u8bf4\u660e\u5982\u4f55\u7f16\u5199\u4e00\u4e2a\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002\u4e0e\u670d\u52a1\u5668\u7a0b\u5e8f\u4e0d\u540c\uff0c\u5ba2\u6237\u7aef\u7a0b\u5e8f\u8981\u6c42\u6709\u53cb\u597d\u7684\u4ea4\u4e92\u754c\u9762\uff0c\u56e0\u6b64\u672c\u6587\u6240\u793a\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\u91c7\u7528Qt\u548clinux C\u5171\u540c\u5b8c\u6210\u3002\u5ba2\u6237\u7aef\u7684\u754c\u9762\u90e8\u5206\u91c7\u7528Qt\u5b8c\u6210\uff0c\u800c\u4e0e\u670d\u52a1\u5668\u95f4\u5177\u4f53\u7684\u901a\u4fe1\u90e8\u5206\u5219\u901a\u8fc7linux C\u8bed\u8a00\u5b8c\u6210\u3002<\/p>\n

1.\u754c\u9762\u8bbe\u8ba1<\/h3>\n

\u901a\u8fc7Qt Designer\u53ef\u5feb\u901f\u8bbe\u8ba1\u597d\u5ba2\u6237\u7aef\u754c\u9762\uff0c\u5e76\u5bf9\u56db\u4e2a\u6309\u94ae\u6240\u5bf9\u5e94\u7684\u4fe1\u53f7\u548c\u69fd\u51fd\u6570\u8fdb\u884c\u8fde\u63a5\u3002\u5ba2\u6237\u7aef\u6240\u5bf9\u5e94\u7684\u7c7b\u4e3aClientUI\u3002<\/p>\n

\"\"<\/a><\/p>\n

2.\u4e0e\u670d\u52a1\u5668\u95f4\u901a\u4fe1\u7684\u7f16\u7a0b<\/h3>\n

\u7531\u4e8eQt\u662f\u5bf9C++\u7684\u4e00\u79cd\u6269\u5c55\uff0c\u56e0\u6b64\u6211\u4eec\u5fc5\u987b\u5c06\u4f7f\u7528Linux C\u7f16\u5199\u7684\u5ba2\u6237\u7aef\u901a\u4fe1\u7a0b\u5e8f\u5c01\u88c5\u6210\u7c7b\uff0c\u8fd9\u91cc\u6211\u4eec\u5c06\u5176\u5b9a\u4e49\u4e3aClientConnection\u3002<\/p>\n

\u6211\u4eec\u5df2\u7ecf\u5bf9\u5ba2\u6237\u7aef\u7684\u754c\u9762\u548c\u901a\u4fe1\u90e8\u5206\u5206\u522b\u5b9a\u4e49\u4e86\u4e24\u4e2a\u7c7b\uff0c\u4f46\u662f\u5982\u4f55\u5c06\u4e24\u8005\u7ed3\u5408\u5728\u4e00\u8d77\uff1f\u65b9\u6cd5\u5f88\u7b80\u5355\u3002\u5c06ClientConnection\u7c7b\u7684\u5bf9\u8c61cli\u4f5c\u4e3aClientUI\u7c7b\u7684\u6210\u5458\uff0c\u7136\u540e\u5728\u5177\u4f53\u7684\u69fd\u51fd\u6570\u4e2d\u5bf9\u5e94\u76f8\u5e94\u7684\u901a\u4fe1\u51fd\u6570\u3002\u548c\u4e0a\u6587\u5206\u6790\u670d\u52a1\u5668\u7f16\u7a0b\u7684\u65b9\u6cd5\u4e0d\u540c\uff0c\u672c\u6587\u5c06\u4ee5\u5206\u6790\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u69fd\u51fd\u6570\u7684\u65b9\u5f0f\u6765\u8bf4\u660e\u5982\u4f55\u7f16\u5199\u5ba2\u6237\u7aef\u7a0b\u5e8f\u3002<\/p>\n

2.1\u8fde\u63a5\u6309\u94ae\u7684\u69fd\u51fd\u6570<\/h4>\n

\u5728\u8fde\u63a5\u6309\u94ae\u5bf9\u5e94\u7684\u69fd\u51fd\u6570\u4e2d\uff0c\u9996\u5148\u521b\u5efa\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\uff1b\u7136\u540e\u4ece\u8f93\u5165\u6846\u4e2d\u83b7\u5f97\u670d\u52a1\u5668\u7684IP\u5730\u5740\uff1b\u518d\u901a\u8fc7connect\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u8fde\u63a5\u3002<\/p>\n

connect\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n

     #include < sys\/socket.h >\r\n     int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);<\/pre>\n
connect\u51fd\u6570\u7528\u4e8e\u5728sockfd\u5957\u63a5\u5b57\u4e0a\u521b\u5efa\u4e00\u4e2a\u8fde\u63a5\uff0csockfd\u5373\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\uff1baddr\u5373\u4e3a\u670d\u52a1\u5668\u7aef\u7684\u5957\u63a5\u5b57\u5730\u5740\uff1baddrlen\u4e3aaddr\u7684\u957f\u5ea6\u3002\u6211\u4eec\u5c06connect\u51fd\u6570\u5c01\u88c5\u6210ClientConnection\u7c7b\u4e2d\u7684connectingSocket\u51fd\u6570\uff0c\u8be5\u6210\u5458\u51fd\u6570\u5728\u8fde\u63a5\u6309\u94ae\u6240\u5bf9\u5e94\u7684\u69fd\u51fd\u6570\u4e2d\u88ab\u8c03\u7528\u3002\uff1a<\/p>\n
int ClientConnection::connectingSocket()\r\n{\r\n    if (::connect(sockfd, (struct sockaddr *)&serv_addr,\r\n                          sizeof(struct sockaddr)) == -1) {\r\n        return 0;\r\n    }\r\n\r\n    return 1;\r\n}<\/pre>\n
\u5728\u8be5\u69fd\u51fd\u6570\u4e2d\uff0c\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528\u8fde\u63a5\u51fd\u6570\uff1a<\/p>\n
    if (cli.connectingSocket() == 1) {\r\n        ui->statusLabel->setText(\"connecting to server success!\");\r\n    } else {\r\n        ui->statusLabel->setText(\"ERROR:connecting to server fail!\");\r\n        \/\/exit(1);\r\n    }<\/pre>\n
\u5f53\u5ba2\u6237\u7aef\u8fde\u63a5\u81f3\u670d\u52a1\u5668\u6210\u529f\u540e\uff0c\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u8ddf\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u6570\u636e\u7684\u4f20\u9001\u3002<\/p>\n
2.2 \u4fee\u6539\u6309\u94ae\u7684\u69fd\u51fd\u6570<\/h4>\n
\u8be5\u69fd\u51fd\u6570\u7684\u5de5\u4f5c\u6bd4\u8f83\u7b80\u5355\uff0c\u4f7f\u5f97\u6587\u672c\u7f16\u8f91\u533a\u53ef\u88ab\u7f16\u8f91\u3002<\/p>\n
2.3 \u5e94\u7528\u6309\u94ae\u7684\u69fd\u51fd\u6570<\/h4>\n
\u5728\u8be5\u69fd\u51fd\u6570\u4e2d\uff0c\u5c06\u6587\u672c\u7f16\u8f91\u533a\u7684\u6570\u636e\u53d1\u9001\u81f3\u670d\u52a1\u5668\u7aef\uff1b\u6216\u4ece\u670d\u52a1\u5668\u63a5\u53d7\u6570\u636e\u663e\u793a\u5728\u8fd9\u4e2a\u6587\u672c\u7f16\u8f91\u533a\u4e2d\u3002\u53d1\u9001\u548c\u63a5\u53d7\u6570\u636e\u7684API\u4ecd\u7136\u662fsend\u548crecv\u51fd\u6570\uff0c\u4e0d\u8fc7\u8fd9\u91cc\u6211\u4eec\u5c06\u8fd9\u4e24\u4e2a\u51fd\u6570\u5c01\u88c5\u6210ClientConnection\u7c7b\u4e2d\u7684sendData\u6210\u5458\u548crecvData\u6210\u5458\uff1a<\/p>\n
int ClientConnection::recvData(char *buf)\r\n{\r\n    if ((recvbytes = recv(sockfd, buf, MAX_DATA_NUM, 0)) == -1) {\r\n        return 0;\r\n    }\r\n\r\n    buf[recvbytes] = '\\0';\r\n    return 1;\r\n}\r\n\r\nint ClientConnection::sendData(char *msg, int len)\r\n{\r\n    if (send(sockfd, msg, len, 0) == -1) {\r\n        printf(\"send error!\\n\");\r\n        return 0;\r\n    }\r\n\r\n    return 1;\r\n}<\/pre>\n
\u8fd9\u4e24\u4e2a\u6210\u5458\u51fd\u6570\u5728\u8be5\u69fd\u51fd\u6570\u7684\u9002\u5f53\u4f4d\u7f6e\u88ab\u8c03\u7528\u3002<\/p>\n
2.4\u9000\u51fa\u6309\u94ae\u7684\u69fd\u51fd\u6570<\/h4>\n
\u9000\u51fa\u6309\u94ae\u7684\u69fd\u51fd\u6570\u4e2d\u53ea\u9700\u65ad\u5f00\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u8fde\u63a5\u5373\u53ef\u3002<\/p>\n
\u53c2\u8003\uff1a<\/strong><\/em><\/p>\n
1.Qt Assistant<\/strong><\/em><\/p>\n
2.Linux C\u7f16\u7a0b\u5b9e\u6218\uff1b\u7ae5\u6c38\u6e05  \u8457\uff1b\u4eba\u6c11\u90ae\u7535\u51fa\u7248\u793e\uff1b<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e0a\u6587\u4e2d\u5bf9\u9762\u5411\u8fde\u63a5\u7684C\/S\u6a21\u578b\u4e2d\u7684\u670d\u52a1\u5668\u8fdb\u884c\u4e86\u7b80\u5355\u63cf\u8ff0\uff0c\u672c\u6587\u5c06\u8bf4\u660e\u5982\u4f55\u7f16\u5199\u4e00\u4e2a\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002\u4e0e\u670d\u52a1\u5668\u7a0b\u5e8f\u4e0d\u540c\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[109,202,200,405],"class_list":["post-2746","post","type-post","status-publish","format-standard","hentry","category-linuxc","tag-c","tag-gui","tag-qt","tag-405"],"views":24847,"_links":{"self":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts\/2746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/comments?post=2746"}],"version-history":[{"count":0,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts\/2746\/revisions"}],"wp:attachment":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/media?parent=2746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/categories?post=2746"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/tags?post=2746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}