{"id":127917,"date":"2024-10-26T10:16:17","date_gmt":"2024-10-26T02:16:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/127917\/"},"modified":"2024-10-26T10:16:18","modified_gmt":"2024-10-26T02:16:18","slug":"redis-%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e6%89%80%e6%9c%89-key","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/127917\/","title":{"rendered":"Redis \u5982\u4f55\u67e5\u770b\u6240\u6709 Key"},"content":{"rendered":"

Redis \u5982\u4f55\u67e5\u770b\u6240\u6709 Key<\/h1>\n

Redis \u662f\u4e00\u7a2e\u9ad8\u6548\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u5728\u4f7f\u7528 Redis \u7684\u904e\u7a0b\u4e2d\uff0c\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u6240\u6709\u7684 Key \u662f\u4e00\u9805\u57fa\u672c\u800c\u91cd\u8981\u7684\u6280\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u67e5\u770b Redis \u4e2d\u6240\u6709 Key \u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7ba1\u7406\u548c\u4f7f\u7528 Redis \u6578\u64da\u5eab\u3002<\/p>\n

\u4f7f\u7528 KEYS<\/code> \u547d\u4ee4<\/h2>\n

Redis \u63d0\u4f9b\u4e86\u4e00\u500b\u540d\u70ba KEYS<\/code> \u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u4f86\u67e5\u8a62\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6240\u6709 Key\u3002\u9019\u500b\u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

KEYS pattern<\/code><\/pre>\n
\u5176\u4e2d\uff0cpattern<\/code> \u662f\u7528\u4f86\u5339\u914d Key \u7684\u6a21\u5f0f\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u67e5\u770b\u6240\u6709\u7684 Key\uff0c\u53ef\u4ee5\u4f7f\u7528\u901a\u914d\u7b26 *<\/code>\uff1a<\/p>\n
KEYS *<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de Redis \u6578\u64da\u5eab\u4e2d\u6240\u6709\u7684 Key\u3002\u7136\u800c\uff0c\u4f7f\u7528 KEYS<\/code> \u547d\u4ee4\u6642\u9700\u8981\u6ce8\u610f\uff0c\u9019\u500b\u547d\u4ee4\u5728\u5927\u578b\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u56e0\u70ba\u5b83\u6703\u904d\u6b77\u6574\u500b\u6578\u64da\u5eab\u4f86\u67e5\u627e\u5339\u914d\u7684 Key\u3002\u56e0\u6b64\uff0c\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4e0d\u5efa\u8b70\u983b\u7e41\u4f7f\u7528\u6b64\u547d\u4ee4\u3002<\/p>\n
\u4f7f\u7528 SCAN<\/code> \u547d\u4ee4<\/h2>\n
\u70ba\u4e86\u907f\u514d KEYS<\/code> \u547d\u4ee4\u5e36\u4f86\u7684\u6027\u80fd\u554f\u984c\uff0cRedis \u63d0\u4f9b\u4e86\u53e6\u4e00\u500b\u547d\u4ee4 SCAN<\/code>\uff0c\u9019\u662f\u4e00\u500b\u66f4\u5b89\u5168\u4e14\u9ad8\u6548\u7684\u9078\u64c7\u3002SCAN<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n
\u9019\u88e1\u7684 cursor<\/code> \u662f\u4e00\u500b\u6e38\u6a19\uff0c\u7528\u65bc\u8ddf\u8e2a\u7576\u524d\u7684\u6383\u63cf\u4f4d\u7f6e\u3002\u521d\u59cb\u6642\uff0c\u6e38\u6a19\u61c9\u8a2d\u70ba 0\u3002MATCH<\/code> \u53c3\u6578\u53ef\u4ee5\u7528\u4f86\u6307\u5b9a\u5339\u914d\u7684\u6a21\u5f0f\uff0c\u800c COUNT<\/code> \u53c3\u6578\u5247\u7528\u4f86\u6307\u5b9a\u6bcf\u6b21\u8fd4\u56de\u7684 Key \u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 SCAN<\/code> \u547d\u4ee4\u67e5\u770b\u6240\u6709 Key \u7684\u793a\u4f8b\uff1a<\/p>\n
\n127.0.0.1:6379> SCAN 0\n<\/code><\/pre>\n
\u9019\u500b\u547d\u4ee4\u5c07\u8fd4\u56de\u4e00\u500b\u6e38\u6a19\u548c\u4e00\u7d44 Key\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u8fd4\u56de\u7684\u6e38\u6a19\u7e7c\u7e8c\u6383\u63cf\uff0c\u76f4\u5230\u6e38\u6a19\u8fd4\u56de\u5230 0 \u70ba\u6b62\u3002<\/p>\n
\u4f7f\u7528 HSCAN<\/code>\u3001SSCAN<\/code> \u548c ZSCAN<\/code> \u547d\u4ee4<\/h2>\n
\u9664\u4e86 SCAN<\/code> \u547d\u4ee4\uff0cRedis \u9084\u63d0\u4f9b\u4e86\u91dd\u5c0d\u4e0d\u540c\u6578\u64da\u985e\u578b\u7684\u6383\u63cf\u547d\u4ee4\uff0c\u5305\u62ec HSCAN<\/code>\uff08\u54c8\u5e0c\uff09\u3001SSCAN<\/code>\uff08\u96c6\u5408\uff09\u548c ZSCAN<\/code>\uff08\u6709\u5e8f\u96c6\u5408\uff09\u3002\u9019\u4e9b\u547d\u4ee4\u7684\u7528\u6cd5\u8207 SCAN<\/code> \u985e\u4f3c\uff0c\u80fd\u5920\u6709\u6548\u5730\u904d\u6b77\u5404\u81ea\u985e\u578b\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n
\u793a\u4f8b\uff1a\u4f7f\u7528 HSCAN<\/code><\/h3>\n
\n127.0.0.1:6379> HSET myhash field1 \"value1\"\n127.0.0.1:6379> HSET myhash field2 \"value2\"\n127.0.0.1:6379> HSCAN myhash 0\n<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de myhash<\/code> \u54c8\u5e0c\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\u53ca\u5176\u5c0d\u61c9\u7684\u503c\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728 Redis \u4e2d\u67e5\u770b\u6240\u6709 Key \u662f\u4e00\u9805\u57fa\u672c\u64cd\u4f5c\uff0c\u7121\u8ad6\u662f\u4f7f\u7528 KEYS<\/code> \u547d\u4ee4\u9084\u662f\u66f4\u9ad8\u6548\u7684 SCAN<\/code> \u547d\u4ee4\uff0c\u90fd\u80fd\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u3002\u5c0d\u65bc\u5927\u578b\u6578\u64da\u5eab\uff0c\u5efa\u8b70\u4f7f\u7528 SCAN<\/code> \u547d\u4ee4\u4ee5\u907f\u514d\u6027\u80fd\u554f\u984c\u3002\u4e86\u89e3\u9019\u4e9b\u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u4f60\u5728 Redis \u4e2d\u7684\u64cd\u4f5c\u6548\u7387\u3002<\/p>\n
\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u4f60\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u67e5\u770b\u6240\u6709 Key\uff0c\u4f7f\u7528\u547d\u4ee4\u5982 `KEYS *` \u6216 `SCAN`\uff0c\u8f7b\u677e\u7ba1\u7406\u548c\u76d1\u63a7\u6570\u636e\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-127917","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127917","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=127917"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127917\/revisions"}],"predecessor-version":[{"id":127918,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127917\/revisions\/127918"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=127917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=127917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=127917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}