{"id":201601,"date":"2025-05-10T08:14:19","date_gmt":"2025-05-10T00:14:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201601\/"},"modified":"2025-05-10T08:14:19","modified_gmt":"2025-05-10T00:14:19","slug":"redis%e9%80%9a%e7%94%a8%e5%91%bd%e4%bb%a4%e4%bb%8b%e7%bb%8d%e4%bb%a5%e5%8f%8akey%e7%9a%84%e5%b1%82%e7%ba%a7%e7%bb%93%e6%9e%84%e8%ae%b2%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201601\/","title":{"rendered":"Redis\u901a\u7528\u547d\u4ee4\u4ecb\u7ecd\u4ee5\u53cakey\u7684\u5c42\u7ea7\u7ed3\u6784\u8bb2\u89e3"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u901a\u7528\u547d\u4ee4\u4ecb\u7ecd\u4ee5\u53cakey\u7684\u5c42\u7ea7\u7ed3\u6784\u8bb2\u89e3<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60\u6570\u636e\u5e93<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u300aRedis\u901a\u7528\u547d\u4ee4\u4ecb\u7ecd\u4ee5\u53cakey\u7684\u5c42\u7ea7\u7ed3\u6784\u8bb2\u89e3\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0\u6570\u636e\u5e93<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n

1 Redis\u6570\u636e\u7ed3\u6784\u4ecb\u7ecd<\/h2>\n

Redis\u662f\u4e00\u4e2akey-value\u7684\u6570\u636e\u5e93\uff0ckey\u4e00\u822c\u662fString\u7c7b\u578b\uff0c\u4e0d\u8fc7value\u7684\u7c7b\u578b\u591a\u79cd\u591a\u6837\uff1a<\/p>\n

value\u7684\u6570\u636e\u7c7b\u578b\u5171\u67098\u79cd\uff0c\u524d\u97625\u4e2d\u4e3a\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u540e\u97623\u79cd\u662f\u9488\u5bf9\u4e0d\u540c\u7684\u60c5\u51b5\u6307\u5b9a\u7684\u7279\u6b8a\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

<\/p>\n

\u547d\u4ee4\u4e0d\u8981\u6b7b\u8bb0\uff0c\u5b66\u4f1a\u67e5\u8be2\u5c31\u597d\u5566<\/p>\n

Redis\u4e3a\u4e86\u65b9\u4fbf\u6211\u4eec\u5b66\u4e60\uff0c\u5c06\u64cd\u4f5c\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\u547d\u4ee4\u4e5f\u505a\u4e86\u5206\u7ec4\uff0c\u5728\u5b98\u7f51\uff08 Commands | Redis\uff09\u53ef\u4ee5\u67e5\u770b\u5230\u4e0d\u540c\u7684\u547d\u4ee4\uff1a\uff08\u70b9\u51fbCOMMANDS\uff09<\/p>\n

<\/p>\n

\u5f53\u7136\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7Help\u547d\u4ee4\u6765\u5e2e\u52a9\u6211\u4eec\u53bb\u67e5\u770b\u547d\u4ee4<\/p>\n

<\/p>\n

2 Redis\u901a\u7528\u547d\u4ee4<\/h2>\n

\u901a\u7528\u6307\u4ee4\u662f\u90e8\u5206\u6570\u636e\u7c7b\u578b\u7684\uff0c\u90fd\u53ef\u4ee5\u4f7f\u7528\u7684\u6307\u4ee4\uff0c\u5e38\u89c1\u7684\u6709\uff1a<\/p>\n

    \n
  • KEYS\uff1a\u67e5\u770b\u7b26\u5408\u6a21\u677f\u7684\u6240\u6709key<\/li>\n
  • DEL\uff1a\u5220\u9664\u4e00\u4e2a\u6307\u5b9a\u7684key<\/li>\n
  • EXISTS\uff1a\u5224\u65adkey\u662f\u5426\u5b58\u5728<\/li>\n
  • EXPIRE\uff1a\u7ed9\u4e00\u4e2akey\u8bbe\u7f6e\u6709\u6548\u671f\uff0c\u6709\u6548\u671f\u5230\u671f\u65f6\u8be5key\u4f1a\u88ab\u81ea\u52a8\u5220\u9664<\/li>\n
  • TTL\uff1a\u67e5\u770b\u4e00\u4e2aKEY\u7684\u5269\u4f59\u6709\u6548\u671f<\/li>\n<\/ul>\n

    \u901a\u8fc7help [command] \u53ef\u4ee5\u67e5\u770b\u4e00\u4e2a\u547d\u4ee4\u7684\u5177\u4f53\u7528\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n

    <\/p>\n

    \u63a5\u4e0b\u6765\u6f14\u793a\u4e0a\u8ff0\u5e38\u7528\u547d\u4ee4\u7684\u4f7f\u7528\uff1a<\/p>\n

    \u6e29\u99a8\u63d0\u793a\uff1a\u4ee5\u4e0b\u7684\u5185\u5bb9\u6240\u6709\u7684\u4ee3\u7801\u5757\u90fd\u662f\u4ece\u547d\u4ee4\u884c\u7a97\u53e3\u590d\u5236\u8fc7\u6765\u7684\uff0c\u5305\u62ec\u547d\u4ee4\u548c\u7ed3\u679c\u54e6~<\/p>\n

    1.KEYS\uff1a\u67e5\u770b\u7b26\u5408\u6a21\u677f\u7684\u6240\u6709key<\/p>\n

    \n

    127.0.0.1:6379> keys *
    1) “name”
    2) “age”
    127.0.0.1:6379>
    # \u67e5\u8be2\u4ee5a\u5f00\u5934\u7684key
    127.0.0.1:6379> keys a*
    1) “age”
    127.0.0.1:6379><\/p>\n<\/blockquote>\n

    \u8d34\u5fc3\u5c0f\u63d0\u793a\uff1a\u5728\u751f\u4ea7\u73af\u5883\u4e0b\uff0c\u4e0d\u63a8\u8350\u4f7f\u7528keys \u547d\u4ee4\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u547d\u4ee4\u5728key\u8fc7\u591a\u7684\u60c5\u51b5\u4e0b\uff0c\u6548\u7387\u4e0d\u9ad8<\/p>\n

    2.DEL\uff1a\u5220\u9664\u4e00\u4e2a\u6307\u5b9a\u7684key<\/p>\n

    \n

    127.0.0.1:6379> help del
      DEL key [key …]
      summary: Delete a key
      since: 1.0.0
      group: generic
    127.0.0.1:6379> del name #\u5220\u9664\u5355\u4e2a
    (integer) 1  #\u6210\u529f\u5220\u96641\u4e2a
    127.0.0.1:6379> keys *
    1) “age”
    127.0.0.1:6379> MSET k1 v1 k2 v2 k3 v3 #\u6279\u91cf\u6dfb\u52a0\u6570\u636e
    OK
    127.0.0.1:6379> keys *
    1) “k3”
    2) “k2”
    3) “k1”
    4) “age”
    127.0.0.1:6379> del k1 k2 k3 k4
    (integer) 3   #\u6b64\u5904\u8fd4\u56de\u7684\u662f\u6210\u529f\u5220\u9664\u7684key\uff0c\u7531\u4e8eredis\u4e2d\u53ea\u6709k1,k2,k3 \u6240\u4ee5\u53ea\u6210\u529f\u5220\u96643\u4e2a\uff0c\u6700\u7ec8\u8fd4\u56de
    127.0.0.1:6379>
    127.0.0.1:6379> keys * #\u518d\u67e5\u8be2\u5168\u90e8\u7684key
    1) “age”    #\u53ea\u5269\u4e0b\u4e00\u4e2a\u4e86
    127.0.0.1:6379><\/p>\n<\/blockquote>\n

    \u8d34\u5fc3\u5c0f\u63d0\u793a\uff1a\u5728\u62f7\u8d1d\u4ee3\u7801\u7684\u65f6\u5019\uff0c\u53ea\u9700\u8981\u62f7\u8d1d\u5bf9\u5e94\u7684\u547d\u4ee4\u54e6~<\/p>\n

    3.EXISTS\uff1a\u5224\u65adkey\u662f\u5426\u5b58\u5728<\/p>\n

    \n

    127.0.0.1:6379> help EXISTS
      EXISTS key [key …]
      summary: Determine if a key exists
      since: 1.0.0
      group: generic
    127.0.0.1:6379> exists age
    (integer) 1
    127.0.0.1:6379> exists name
    (integer) 0<\/p>\n<\/blockquote>\n

    4.EXPIRE\uff1a\u7ed9\u4e00\u4e2akey\u8bbe\u7f6e\u6709\u6548\u671f\uff0c\u6709\u6548\u671f\u5230\u671f\u65f6\u8be5key\u4f1a\u88ab\u81ea\u52a8\u5220\u9664<\/p>\n

    5.TTL\uff1a\u67e5\u770b\u4e00\u4e2aKEY\u7684\u5269\u4f59\u7684\u5b58\u6d3b\u65f6\u95f4<\/p>\n

    \n

    127.0.0.1:6379> expire age 10
    (integer) 1
    127.0.0.1:6379> ttl age
    (integer) 8
    127.0.0.1:6379> ttl age
    (integer) 6
    127.0.0.1:6379> ttl age
    (integer) -2
    127.0.0.1:6379> ttl age
    (integer) -2  #\u5f53\u8fd9\u4e2akey\u8fc7\u671f\u4e86\uff0c\u90a3\u4e48\u6b64\u65f6\u67e5\u8be2\u51fa\u6765\u5c31\u662f-2 
    127.0.0.1:6379> keys *
    (empty list or set)
    127.0.0.1:6379> set age 10 #\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4
    OK
    127.0.0.1:6379> ttl age
    (integer) -1  # ttl\u7684\u8fd4\u56de\u503c\u5c31\u662f-1<\/p>\n<\/blockquote>\n

    \u8d34\u5fc3\u5c0f\u63d0\u793a\uff1a<\/p>\n

    \uff081\uff09\u5185\u5b58\u975e\u5e38\u5b9d\u8d35\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u6570\u636e\uff0c\u6211\u4eec\u5e94\u5f53\u7ed9\u4ed6\u4e00\u4e9b\u8fc7\u671f\u65f6\u95f4\uff0c\u5f53\u8fc7\u671f\u65f6\u95f4\u5230\u4e86\u4e4b\u540e\uff0c\u4ed6\u5c31\u4f1a\u81ea\u52a8\u88ab\u5220\u9664~<\/p>\n

    \uff082\uff09\u5f53\u4f7f\u7528TTL\u547d\u4ee4\u65f6\uff0c\u5982\u679c\u8fd4\u56de -1 \u503c\uff0c\u4e0d\u662f\u4ee3\u8868\u5df2\u7ecf\u88ab\u9500\u6bc1\uff0c\u800c\u662f\u4ee3\u8868\u6c38\u4e45\u54e6~<\/p>\n

    3 Redis\u547d\u4ee4-Key\u7684\u5c42\u7ea7\u7ed3\u6784<\/h2>\n

    Redis\u6ca1\u6709\u7c7b\u4f3cMySQL\u4e2d\u7684Table\u7684\u6982\u5ff5\uff0c\u6211\u4eec\u8be5\u5982\u4f55\u533a\u5206\u4e0d\u540c\u7c7b\u578b\u7684key\u5462\uff1f<\/p>\n

    \u4f8b\u5982\uff0c\u9700\u8981\u5b58\u50a8\u7528\u6237.\u5546\u54c1\u4fe1\u606f\u5230redis\uff0c\u6709\u4e00\u4e2a\u7528\u6237id\u662f1\uff0c\u6709\u4e00\u4e2a\u5546\u54c1id\u6070\u597d\u4e5f\u662f1\uff0c\u6b64\u65f6\u5982\u679c\u4f7f\u7528id\u4f5c\u4e3akey\uff0c\u90a3\u5c31\u4f1a\u51b2\u7a81\u4e86\uff0c\u8be5\u600e\u4e48\u529e\uff1f<\/p>\n

    \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7ed9key\u6dfb\u52a0\u524d\u7f00\u52a0\u4ee5\u533a\u5206\uff0c\u4e0d\u8fc7\u8fd9\u4e2a\u524d\u7f00\u4e0d\u662f\u968f\u4fbf\u52a0\u7684\uff0c\u6709\u4e00\u5b9a\u7684\u89c4\u8303\uff1a<\/p>\n

    Redis\u7684key\u5141\u8bb8\u6709\u591a\u4e2a\u5355\u8bcd\u5f62\u6210\u5c42\u7ea7\u7ed3\u6784\uff0c\u591a\u4e2a\u5355\u8bcd\u4e4b\u95f4\u7528’:’\u9694\u5f00\uff0c\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

    <\/p>\n

    \u8fd9\u4e2a\u683c\u5f0f\u5e76\u975e\u56fa\u5b9a\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u6765\u5220\u9664\u6216\u6dfb\u52a0\u8bcd\u6761\u3002<\/p>\n

    \u8fd9\u4e2a\u683c\u5f0f\u5e76\u975e\u56fa\u5b9a\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u6765\u5220\u9664\u6216\u6dfb\u52a0\u8bcd\u6761\u3002<\/p>\n

    \u4f8b\u5982\u6211\u4eec\u7684\u9879\u76ee\u540d\u79f0\u53eb heima\uff0c\u6709user\u548cproduct\u4e24\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u5b9a\u4e49key\uff1a<\/p>\n

      \n
    • user\u76f8\u5173\u7684key\uff1aheima:user:1<\/li>\n
    • product\u76f8\u5173\u7684key\uff1aheima:product:1<\/li>\n<\/ul>\n

      \u5982\u679cValue\u662f\u4e00\u4e2aJava\u5bf9\u8c61\uff0c\u4f8b\u5982\u4e00\u4e2aUser\u5bf9\u8c61\uff0c\u5219\u53ef\u4ee5\u5c06\u5bf9\u8c61\u5e8f\u5217\u5316\u4e3aJSON\u5b57\u7b26\u4e32\u540e\u5b58\u50a8\uff1a<\/p>\n\n\n\n\n\n\n
      KEY<\/strong><\/th>\nVALUE<\/strong><\/th>\n<\/tr>\n<\/thead>\n
      heima:user:1<\/td>\n{“id”:1, “name”: “Jack”, “age”: 21}<\/td>\n<\/tr>\n
      heima:product:1<\/td>\n{“id”:1, “name”: “\u5c0f\u7c7311”, “price”: 4999}<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u4e00\u65e6\u6211\u4eec\u5411redis\u91c7\u7528\u8fd9\u6837\u7684\u65b9\u5f0f\u5b58\u50a8\uff0c\u90a3\u4e48\u5728\u53ef\u89c6\u5316\u754c\u9762\u4e2d\uff0credis\u4f1a\u4ee5\u5c42\u7ea7\u7ed3\u6784\u6765\u8fdb\u884c\u5b58\u50a8\uff0c\u5f62\u6210\u7c7b\u4f3c\u4e8e\u8fd9\u6837\u7684\u7ed3\u6784\uff0c\u66f4\u52a0\u65b9\u4fbfRedis\u83b7\u53d6\u6570\u636e<\/p>\n

      <\/p>\n","protected":false},"excerpt":{"rendered":"

      Redis\u901a\u7528\u547d\u4ee4\u4ecb\u7ecd\u4ee5\u53cakey...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201601","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201601","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201601"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201601\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}