{"id":152849,"date":"2024-11-02T02:32:20","date_gmt":"2024-11-01T18:32:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152849\/"},"modified":"2024-11-02T02:32:21","modified_gmt":"2024-11-01T18:32:21","slug":"%e7%a8%8b%e5%ba%8f-c-%e8%aa%9e%e8%a8%80%e5%af%a6%e7%8f%be%e7%9a%84-redis-%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f%ef%bc%88redis-%e7%9a%84-c-%e9%a9%85%e5%8b%95%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152849\/","title":{"rendered":"\u7a0b\u5e8f C \u8a9e\u8a00\u5be6\u73fe\u7684 Redis \u9a45\u52d5\u7a0b\u5e8f\uff08Redis \u7684 C \u9a45\u52d5\uff09"},"content":{"rendered":"

\u7a0b\u5e8f C \u8a9e\u8a00\u5be6\u73fe\u7684 Redis \u9a45\u52d5\u7a0b\u5e8f\uff08Redis \u7684 C \u9a45\u52d5\uff09<\/h1>\n

Redis \u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0cRedis \u5728\u958b\u767c\u8005\u4e2d\u7372\u5f97\u4e86\u6975\u5927\u7684\u9752\u775e\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 C \u8a9e\u8a00\u5be6\u73fe Redis \u7684\u9a45\u52d5\u7a0b\u5e8f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

Redis \u9a45\u52d5\u7a0b\u5e8f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis \u9a45\u52d5\u7a0b\u5e8f\u662f\u4e00\u500b\u7528\u65bc\u8207 Redis \u670d\u52d9\u5668\u9032\u884c\u901a\u4fe1\u7684\u5eab\u3002\u5b83\u8ca0\u8cac\u5c07\u61c9\u7528\u7a0b\u5e8f\u7684\u8acb\u6c42\u8f49\u63db\u70ba Redis \u80fd\u5920\u7406\u89e3\u7684\u547d\u4ee4\uff0c\u4e26\u5c07 Redis \u7684\u97ff\u61c9\u8f49\u63db\u70ba\u61c9\u7528\u7a0b\u5e8f\u53ef\u4ee5\u8655\u7406\u7684\u683c\u5f0f\u3002C \u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u5e95\u5c64\u8a9e\u8a00\uff0c\u80fd\u5920\u63d0\u4f9b\u9ad8\u6548\u7684\u6027\u80fd\uff0c\u9069\u5408\u7528\u65bc\u958b\u767c Redis \u9a45\u52d5\u7a0b\u5e8f\u3002<\/p>\n

Redis \u5354\u8b70\u6982\u8ff0<\/h2>\n

Redis \u4f7f\u7528\u4e00\u7a2e\u7c21\u55ae\u7684\u6587\u672c\u5354\u8b70\u4f86\u9032\u884c\u901a\u4fe1\u3002\u6bcf\u500b\u547d\u4ee4\u90fd\u4ee5\u4e00\u500b\u5b57\u6bcd\u958b\u982d\uff0c\u5f8c\u9762\u8ddf\u96a8\u8457\u53c3\u6578\u3002\u4f8b\u5982\uff0cSET \u547d\u4ee4\u7684\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

SET key value<\/code><\/pre>\n
\u5728 C \u8a9e\u8a00\u4e2d\uff0c\u6211\u5011\u9700\u8981\u5c07\u9019\u4e9b\u547d\u4ee4\u683c\u5f0f\u5316\u70ba\u5b57\u7b26\u4e32\uff0c\u4e26\u901a\u904e TCP \u9023\u63a5\u767c\u9001\u7d66 Redis \u670d\u52d9\u5668\u3002<\/p>\n
\u4f7f\u7528 C \u8a9e\u8a00\u5be6\u73fe Redis \u9a45\u52d5\u7a0b\u5e8f<\/h2>\n
1. \u5efa\u7acb TCP \u9023\u63a5<\/h3>\n
\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u4f7f\u7528 C \u8a9e\u8a00\u5efa\u7acb\u8207 Redis \u670d\u52d9\u5668\u7684 TCP \u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u5efa\u7acb\u9023\u63a5\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n
\n#include <stdio.h>\n#include <stdlib.h>\n#include <string.h>\n#include <unistd.h>\n#include <arpa\/inet.h>\n\nint connect_to_redis(const char *hostname, int port) {\n    int sockfd;\n    struct sockaddr_in server_addr;\n\n    sockfd = socket(AF_INET, SOCK_STREAM, 0);\n    if (sockfd < 0) {\n        perror("Socket creation failed");\n        return -1;\n    }\n\n    memset(&server_addr, 0, sizeof(server_addr));\n    server_addr.sin_family = AF_INET;\n    server_addr.sin_port = htons(port);\n    inet_pton(AF_INET, hostname, &server_addr.sin_addr);\n\n    if (connect(sockfd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {\n        perror("Connection to Redis failed");\n        close(sockfd);\n        return -1;\n    }\n\n    return sockfd;\n}\n<\/code><\/pre>\n
2. \u767c\u9001\u547d\u4ee4<\/h3>\n
\u4e00\u65e6\u5efa\u7acb\u4e86\u9023\u63a5\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u767c\u9001\u547d\u4ee4\u7d66 Redis\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u767c\u9001 SET \u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n
\nvoid send_command(int sockfd, const char *command) {\n    send(sockfd, command, strlen(command), 0);\n    send(sockfd, \"rn\", 2, 0); \/\/ Redis \u5354\u8b70\u8981\u6c42\u4ee5 CRLF \u7d50\u5c3e\n}\n<\/code><\/pre>\n
3. \u63a5\u6536\u97ff\u61c9<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u63a5\u6536 Redis \u7684\u97ff\u61c9\u3002\u4ee5\u4e0b\u662f\u63a5\u6536\u97ff\u61c9\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n
\nvoid receive_response(int sockfd) {\n    char buffer[1024];\n    int bytes_received = recv(sockfd, buffer, sizeof(buffer) - 1, 0);\n    if (bytes_received > 0) {\n        buffer[bytes_received] = ''; \/\/ \u6dfb\u52a0\u5b57\u7b26\u4e32\u7d50\u675f\u7b26\n        printf(\"Response: %sn\", buffer);\n    }\n}\n<\/code><\/pre>\n
\u5b8c\u6574\u793a\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 C \u8a9e\u8a00\u9023\u63a5\u5230 Redis\uff0c\u767c\u9001 SET \u547d\u4ee4\u4e26\u63a5\u6536\u97ff\u61c9\uff1a<\/p>\n
\nint main() {\n    int sockfd = connect_to_redis(\"127.0.0.1\", 6379);\n    if (sockfd < 0) {\n        return EXIT_FAILURE;\n    }\n\n    send_command(sockfd, "SET mykey myvalue");\n    receive_response(sockfd);\n\n    close(sockfd);\n    return EXIT_SUCCESS;\n}\n<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u4f7f\u7528 C \u8a9e\u8a00\u5be6\u73fe Redis \u9a45\u52d5\u7a0b\u5e8f\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5145\u5206\u5229\u7528 C \u8a9e\u8a00\u7684\u6027\u80fd\u512a\u52e2\uff0c\u4e26\u4e14\u80fd\u5920\u9748\u6d3b\u5730\u8207 Redis \u9032\u884c\u4ea4\u4e92\u3002\u901a\u904e\u5efa\u7acb TCP \u9023\u63a5\u3001\u767c\u9001\u547d\u4ee4\u548c\u63a5\u6536\u97ff\u61c9\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u96c6\u6210 Redis \u7684\u529f\u80fd\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bc \u9999\u6e2f VPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u958b\u767c\u6e2c\u8a66\u9084\u662f\u751f\u7522\u74b0\u5883\uff0c\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u8981\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u4f7f\u7528 C \u8a9e\u8a00\u5be6\u73fe\u7684 Redis \u9a45\u52d5\u7a0b\u5e8f\uff0c\u63d0\u4f9b\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u548c\u64cd\u4f5c\uff0c\u52a9\u529b\u958b\u767c\u8005\u8f15\u9b06\u96c6\u6210 Redis\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-152849","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=152849"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152849\/revisions"}],"predecessor-version":[{"id":152850,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152849\/revisions\/152850"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}