{"id":201148,"date":"2025-05-10T08:29:38","date_gmt":"2025-05-10T00:29:38","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201148\/"},"modified":"2025-05-10T08:29:38","modified_gmt":"2025-05-10T00:29:38","slug":"redis%e4%b8%adhash%e5%ad%97%e5%85%b8%e6%93%8d%e4%bd%9c%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201148\/","title":{"rendered":"redis\u4e2dHash\u5b57\u5178\u64cd\u4f5c\u7684\u65b9\u6cd5"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>redis\u4e2dHash\u5b57\u5178\u64cd\u4f5c\u7684\u65b9\u6cd5<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5bf9\u4e8e\u4e00\u4e2a\u6570\u636e\u5e93\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0cgolang\u5b66\u4e60\u7f51\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aredis\u4e2dHash\u5b57\u5178\u64cd\u4f5c\u7684\u65b9\u6cd5\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\u5b57\u5178\u3001redisHash\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01<\/p>\n<h2>1.Redis\u64cd\u4f5c\u4e4bHash\u64cd\u4f5c<\/h2>\n<p>redis\u652f\u6301\u4e94\u5927\u6570\u636e\u7c7b\u578b\uff0c\u53ea\u652f\u6301\u7b2c\u4e00\u5c42\uff0c\u4e5f\u5c31\u8bf4\u5b57\u5178\u7684value\u503c\uff0c\u5fc5\u987b\u662f\u5b57\u7b26\u4e32<\/p>\n<p>\u5982\u679cvalue\u503c\u60f3\u5b58\u5b57\u5178\uff0c\u5fc5\u987b\u7528json\u8f6c\u6362\u4e00\u4e0b\uff0c\u8f6c\u6210\u5b57\u7b26\u4e32<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238630463ae9700e08b3.png\" class=\"aligncenter\"><\/p>\n<h2>redis hash\u5b57\u5178\u64cd\u4f5c<\/h2>\n<pre>\nreids:{\nk1:'dafdadfasf',\nm1:{\n'key2':value2,\n'key1':value1,\n}\n}<\/pre>\n<p>1.hset(name, key, value)\uff0c\u63d2\u5165\u503c<\/p>\n<pre>\n# name\u5bf9\u5e94\u7684hash\u4e2d\u8bbe\u7f6e\u4e00\u4e2a\u952e\u503c\u5bf9\uff08\u4e0d\u5b58\u5728\uff0c\u5219\u521b\u5efa\uff1b\u5426\u5219\uff0c\u4fee\u6539\uff09\n \n# \u53c2\u6570\uff1a\n    # name\uff0credis\u7684name\n    # key\uff0cname\u5bf9\u5e94\u7684hash\u4e2d\u7684key\n    # value\uff0cname\u5bf9\u5e94\u7684hash\u4e2d\u7684value\n \n# \u6ce8\uff1a\n    # hsetnx(name, key, value),\u5f53name\u5bf9\u5e94\u7684hash\u4e2d\u4e0d\u5b58\u5728\u5f53\u524dkey\u65f6\u5219\u521b\u5efa\uff08\u76f8\u5f53\u4e8e\u6dfb\u52a0\uff09\n# \u8bbe\u7f6e\u503c# conn.hset('m1','cao','\u66f9\u854a')<\/pre>\n<p>2.hmset(name, mapping)\uff0c\u6279\u91cf\u63d2\u5165\u503c<\/p>\n<pre>\n# \u5728name\u5bf9\u5e94\u7684hash\u4e2d\u6279\u91cf\u8bbe\u7f6e\u952e\u503c\u5bf9\n \n# \u53c2\u6570\uff1a\n    # name\uff0credis\u7684name\n    # mapping\uff0c\u5b57\u5178\uff0c\u5982\uff1a{'k1':'v1', 'k2': 'v2'}\n \n# \u5982\uff1a\n    # r.hmset('xx', {'k1':'v1', 'k2': 'v2'})\n# \u6279\u91cf\u63d2\u5165\u8bbe\u7f6e\u503c# conn.hmset('m2', {'cao': 100, 'bai': 101})<\/pre>\n<p>3.hget(name,key)\uff0c\u53d6\u503c<\/p>\n<pre>\n# \u5728name\u5bf9\u5e94\u7684hash\u4e2d\u83b7\u53d6\u6839\u636ekey\u83b7\u53d6value\n# \u53d6\u503c,\u6839\u636e\u5927\u5b57\u5178\u7684key,\u518d\u53bb\u67e5key\nprint(conn.hget('m2','cao'))<\/pre>\n<p>4.hmget(name, keys, *args) \u6279\u91cf\u53d6\u503c<\/p>\n<pre>\n# \u5728name\u5bf9\u5e94\u7684hash\u4e2d\u83b7\u53d6\u591a\u4e2akey\u7684\u503c\n \n# \u53c2\u6570\uff1a\n    # name\uff0creids\u5bf9\u5e94\u7684name\n    # keys\uff0c\u8981\u83b7\u53d6key\u96c6\u5408\uff0c\u5982\uff1a['k1', 'k2', 'k3']\n    # *args\uff0c\u8981\u83b7\u53d6\u7684key\uff0c\u5982\uff1ak1,k2,k3\n \n# \u5982\uff1a\n    # r.mget('xx', ['k1', 'k2'])\n    # \u6216\n    # print r.hmget('xx', 'k1', 'k2')\nprint(conn.hmget('m2','cao','bai'))print(conn.hmget('m2',['cao','bai']))<\/pre>\n<p>hlen(name)<\/p>\n<pre>\n# \u83b7\u53d6name\u5bf9\u5e94\u7684hash\u4e2d\u952e\u503c\u5bf9\u7684\u4e2a\u6570\n# print(conn.hlen('m2'))<\/pre>\n<p>hkeys(name)<\/p>\n<pre>\n# \u83b7\u53d6name\u5bf9\u5e94\u7684hash\u4e2d\u6240\u6709\u7684key\u7684\u503c\n# print(conn.hkeys('m2'))<\/pre>\n<p>hvals(name)<\/p>\n<pre>\n# \u83b7\u53d6name\u5bf9\u5e94\u7684hash\u4e2d\u6240\u6709\u7684value\u7684\u503c\n# print(conn.hvals('m2'))<\/pre>\n<p>hexists(name, key)<\/p>\n<pre>\n# \u68c0\u67e5name\u5bf9\u5e94\u7684hash\u662f\u5426\u5b58\u5728\u5f53\u524d\u4f20\u5165\u7684key\n# print(conn.hexists('m2','cao'))<\/pre>\n<p>hdel(name,*keys)<\/p>\n<pre>\n# \u5c06name\u5bf9\u5e94\u7684hash\u4e2d\u6307\u5b9akey\u7684\u952e\u503c\u5bf9\u5220\u9664\nprint(re.hdel('xxx','sex','name'))\n# conn.hdel('m2','key1','key2')\n# \u8fd9\u6837\u53ef\u4ee5# conn.hdel('m2',*['key1','key2'])# \u8fd9\u6837\u4e0d\u884c# conn.hdel('m2',['key1','key2'])<\/pre>\n<p>hincrby\u7528\u6765\u7edf\u8ba1\u4e00\u4e2a\u4e1c\u897f\u7684\u6570\u91cf\u7684\u9891\u7e41\u589e\u52a0(name, key, amount=1)<\/p>\n<p>hincrby\u5e94\u7528\u573a\u666f:<\/p>\n<p>\u7edf\u8ba1\u6587\u7ae0\u9605\u8bfb\u6570:key\u662f\u6587\u7ae0id,value\u662f\u6587\u7ae0\u9605\u8bfb\u6570,\u6709\u4e00\u4e2a\u9605\u8bfb\u8005,\u6570\u5b57\u52a0\u4e00,\u56fa\u5b9a\u4e00\u4e2a\u65f6\u95f4,\u5c06\u6570\u636e\u540c\u6b65\u5230\u6570\u636e\u5e93,\u4e00\u5b9a\u8981\u5199\u65e5\u5fd7\uff0c\u907f\u514d\u51fa\u9519\uff0c\u8fd8\u80fd\u67e5\u627e\u5230<\/p>\n<pre>\n# \u81ea\u589ename\u5bf9\u5e94\u7684hash\u4e2d\u7684\u6307\u5b9akey\u7684\u503c\uff0c\u4e0d\u5b58\u5728\u5219\u521b\u5efakey=amount\n# \u53c2\u6570\uff1a\n    # name\uff0credis\u4e2d\u7684name\n    # key\uff0c hash\u5bf9\u5e94\u7684key\n    # amount\uff0c\u81ea\u589e\u6570\uff08\u6574\u6570\uff09\nconn.hincrby('m1','key3')<\/pre>\n<p>hincrbyfloat(name, key, amount=1.0)<\/p>\n<pre>\n# \u81ea\u589ename\u5bf9\u5e94\u7684hash\u4e2d\u7684\u6307\u5b9akey\u7684\u503c\uff0c\u4e0d\u5b58\u5728\u5219\u521b\u5efakey=amount\n \n# \u53c2\u6570\uff1a\n    # name\uff0credis\u4e2d\u7684name\n    # key\uff0c hash\u5bf9\u5e94\u7684key\n    # amount\uff0c\u81ea\u589e\u6570\uff08\u6d6e\u70b9\u6570\uff09\n \n# \u81ea\u589ename\u5bf9\u5e94\u7684hash\u4e2d\u7684\u6307\u5b9akey\u7684\u503c\uff0c\u4e0d\u5b58\u5728\u5219\u521b\u5efakey=amount<\/pre>\n<p>hgetall(name)\u2014\u2014\u614e\u7528\uff0c\u4e00\u6b21\u6027\u53d6\u51fa\u6570\u636e\u524d\u9700\u8981\u5148hlen\u770b\u4e0b\u957f\u5ea6<\/p>\n<pre>\n# \u83b7\u53d6name\u5bf9\u5e94hash\u7684\u6240\u6709\u952e\u503c\nprint(re.hgetall('xxx').get(b'name'))\n# \u6839\u636ekey\u628a\u6240\u6709\u7684\u503c\u53d6\u51fa\u6765\n# print(conn.hgetall('m2'))<\/pre>\n<p>hscan_iter(name, match=None, count=None)\uff0c\u589e\u91cf\u8fed\u4ee3\u53d6\u503c<\/p>\n<pre>\n# \u5229\u7528yield\u5c01\u88c5hscan\u521b\u5efa\u751f\u6210\u5668\uff0c\u5b9e\u73b0\u5206\u6279\u53bbredis\u4e2d\u83b7\u53d6\u6570\u636e\n \n# \u53c2\u6570\uff1a\n    # match\uff0c\u5339\u914d\u6307\u5b9akey\uff0c\u9ed8\u8ba4None \u8868\u793a\u6240\u6709\u7684key\n    # count\uff0c\u6bcf\u6b21\u5206\u7247\u6700\u5c11\u83b7\u53d6\u4e2a\u6570\uff0c\u9ed8\u8ba4None\u8868\u793a\u91c7\u7528Redis\u7684\u9ed8\u8ba4\u5206\u7247\u4e2a\u6570\n \n# \u5982\uff1a\n    # for item in r.hscan_iter('xx'):\n    #     print item<\/pre>\n<p>\u5e94\u7528\u573a\u666f\uff1a<br \/> \u6bd4\u5982\u6211redis\u4e2d\u5b57\u5178\u670910000w\u6761\u6570\u636e\uff0c\u5168\u90e8\u90fd\u6253\u5370\u51fa\u6765<br \/> hscan\u2014\u2014\u6307\u5b9a\u6e38\u6807\uff0c\u7136\u540e\u53d6\u591a\u5c11\u503c<\/p>\n<pre>\nfor i in range(1000):\n    conn.hset('m2','key%s'%i,'value%s'%i)\n\u6307\u5b9a\u6bcf\u6b21\u53d610\u6761,\u76f4\u5230\u53d6\u5b8c\nret=conn.hscan_iter('m2',count=100)\n\u4e0d\u8981\u7528\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4e00\u4e0b\u5168\u90e8\u53d6\u51fa\uff0credis\u53ef\u80fd\u4f1a\u88ab\u6491\u7206\uff0c\u6216\u8005\u5148\u7528len\u67e5\u770b\u4e0b\u957f\u5ea6\u518d\u51b3\u5b9a\u4f7f\u7528getall\u6216\u8005\u5176\u4ed6\nret=conn.hgetall('m2')<\/pre>\n<p>hscan(name, cursor=0, match=None, count=None)\u2014\u2014\u6307\u5b9a\u6e38\u6807,\u7136\u540e\u53d6\u591a\u5c11\u6570\u636e<\/p>\n<pre>\n# \u589e\u91cf\u5f0f\u8fed\u4ee3\u83b7\u53d6\uff0c\u5bf9\u4e8e\u6570\u636e\u5927\u7684\u6570\u636e\u975e\u5e38\u6709\u7528\uff0chscan\u53ef\u4ee5\u5b9e\u73b0\u5206\u7247\u7684\u83b7\u53d6\u6570\u636e\uff0c\u5e76\u975e\u4e00\u6b21\u6027\u5c06\u6570\u636e\u5168\u90e8\u83b7\u53d6\u5b8c\uff0c\u4ece\u800c\u9632\u6b62\u5185\u5b58\u88ab\u6491\u7206\n \n# \u53c2\u6570\uff1a\n    # name\uff0credis\u7684name\n    # cursor\uff0c\u6e38\u6807\uff08\u57fa\u4e8e\u6e38\u6807\u5206\u6279\u53d6\u83b7\u53d6\u6570\u636e\uff09\n    # match\uff0c\u5339\u914d\u6307\u5b9akey\uff0c\u9ed8\u8ba4None \u8868\u793a\u6240\u6709\u7684key\n    # count\uff0c\u6bcf\u6b21\u5206\u7247\u6700\u5c11\u83b7\u53d6\u4e2a\u6570\uff0c\u9ed8\u8ba4None\u8868\u793a\u91c7\u7528Redis\u7684\u9ed8\u8ba4\u5206\u7247\u4e2a\u6570\n \n# \u5982\uff1a\n    # \u7b2c\u4e00\u6b21\uff1acursor1, data1 = r.hscan('xx', cursor=0, match=None, count=None)\n    # \u7b2c\u4e8c\u6b21\uff1acursor2, data1 = r.hscan('xx', cursor=cursor1, match=None, count=None)\n    # ...\n    # \u76f4\u5230\u8fd4\u56de\u503ccursor\u7684\u503c\u4e3a0\u65f6\uff0c\u8868\u793a\u6570\u636e\u5df2\u7ecf\u901a\u8fc7\u5206\u7247\u83b7\u53d6\u5b8c\u6bd5<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>redis\u4e2dHash\u5b57\u5178\u64cd\u4f5c\u7684\u65b9&#46;&#46;&#46;<\/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-201148","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201148","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=201148"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201148\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}