{"id":6926,"date":"2019-06-03T03:43:50","date_gmt":"2019-06-03T10:43:50","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=6926"},"modified":"2023-05-25T05:17:23","modified_gmt":"2023-05-25T12:17:23","slug":"sticky-sessions","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/ko\/sticky-sessions\/","title":{"rendered":"Java\uc5d0\uc11c \uc2a4\ud2f0\ud0a4 \uc138\uc158 \uc81c\uac70\ud558\uae30 | Couchbase Spring \uc138\uc158"},"content":{"rendered":"

\uace0\uc815 \uc138\uc158<\/strong> \ub294 \ud2b9\uc815 \uc0ac\uc6a9\uc790\uc758 \uc694\uccad\uc744 \ud574\ub2f9 \uc0ac\uc6a9\uc790\uc758 \uc138\uc158\uc774 \uc788\ub294 \ub3d9\uc77c\ud55c \uc11c\ubc84\ub85c \ub9ac\ub514\ub809\uc158\ud558\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc11c\ubc84\uc5d0 \uc7a5\uc560\uac00 \ubc1c\uc0dd\ud558\uba74 \ud574\ub2f9 \uc11c\ubc84\uc5d0 \uc5f0\uacb0\ub41c \ubaa8\ub4e0 \uc0ac\uc6a9\uc790\uc758 \uc138\uc158\uc774 \uc190\uc2e4\ub418\ubbc0\ub85c \uc548\ud2f0 \ud328\ud134\uc73c\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/p>\n

\uc0ac\uc6a9\uc790\uc640 \uc11c\ubc84 \uac04\uc758 \uc5f0\uacb0\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub85c\ub4dc \ubc38\ub7f0\uc11c\ub97c \ud1b5\ud574 \uad6c\uc131\ub418\uba70, \ub2e4\uc74c\uacfc \uac19\uc740 \uac04\ub2e8\ud55c \ub85c\ub4dc \ubc38\ub7f0\uc2f1 \uc804\ub7b5\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub77c\uc6b4\ub4dc<\/b>-robin<\/b> \ub294 \ud5e4\ube44 \uc720\uc800\uac00 \ubaa8\ub450 \uac19\uc740 \ub178\ub4dc\uc5d0 \uc788\uc744 \uc218 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc694\uccad\uc744 \uade0\ub4f1\ud558\uac8c \ubd84\uc0b0\uc2dc\ud0a4\uae30\uc5d0 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc740 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc2a4\ud2f0\ud0a4 \uc138\uc158\uc744 \ud53c\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc740 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc9c0\ub9cc, \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc0ac\uc6a9\uc790\uc758 \ub370\uc774\ud130\ub97c HTTPSession\uc5d0 \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \uc0c1\ub2f9\ud55c \ub9ac\ud329\ud1a0\ub9c1 \uc5c6\uc774 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uc635\uc158\uc740 \ub2e4\uc18c \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4.<\/p>\n

\uc774 \ubb38\uc81c\uc5d0 \ub300\ud55c \ud55c \uac00\uc9c0 \ube60\ub978 \ud574\uacb0 \ubc29\ubc95\uc740 \uc11c\ubc84\uc758 \uba54\ubaa8\ub9ac\ub97c \uc0ac\uc6a9\ud558\ub294 \ub300\uc2e0 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc138\uc158\uc744 \uc800\uc7a5\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \uc2dc\ub098\ub9ac\uc624\uc5d0\uc11c\ub294 \uc5b4\ub5a4 \ub178\ub4dc\uac00 \uc694\uccad\uc744 \uc218\uc2e0\ud558\ub4e0 \ub370\uc774\ud130 \uc800\uc7a5\uc18c\uc5d0\uc11c \uc9c1\uc811 \uc0ac\uc6a9\uc790\uc758 \uc138\uc158\uc744 \ub85c\ub4dc\ud569\ub2c8\ub2e4. \uc774 \uc811\uadfc \ubc29\uc2dd\uc740 \ucee8\ud14c\uc774\ub108\ubcc4 \uc194\ub8e8\uc158\ubcf4\ub2e4 \uac04\ub2e8\ud558\uba70 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \ub2e4\ub978 \ubaa8\ub4e0 \ud56d\ubaa9\ucc98\ub7fc \uc138\uc158\uc744 \ucffc\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub0b4\ubd80 \ud0a4-\uac12 \uc5d4\uc9c4\uc744 \uc0ac\uc6a9\ud558\uace0 \ub0b4\ubd80 \uce90\uc2dc \uacc4\uce35\uc744 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uadfc\uc5d0 \uc0ac\uc6a9\ud55c \uc138\uc158\uc744 \uba54\ubaa8\ub9ac\uc5d0 \ubcf4\uad00\ud558\uae30 \ub54c\ubb38\uc5d0 \uc774 \uc2dc\ub098\ub9ac\uc624\uc5d0 \ud2b9\ud788 \uc801\ud569\ud55c \uc194\ub8e8\uc158\uc785\ub2c8\ub2e4. \uc2e4\uc81c\ub85c\ub294 \ub300\uaddc\ubaa8\ub85c\ub3c4 \uc798 \uc791\ub3d9\ud558\ub294 \uc194\ub8e8\uc158\uc774\ub77c\ub294 \ub73b\uc785\ub2c8\ub2e4. \uc774\uac83\uc774 \ubc14\ub85c \uc800\ud76c\uac00 \ucee4\ubba4\ub2c8\ud2f0 \uc9c0\uc6d0\uc744 \ucd94\uac00\ud558\ub294 \uc774\uc720\uc785\ub2c8\ub2e4. \ubd04 \uc138\uc158<\/a>:<\/p>\n

\uce74\uc6b0\uce58\ubca0\uc774\uc2a4 \ubd04 \uc138\uc158<\/a> \ub97c \uc0ac\uc6a9\ud558\uba74 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc800\uc7a5\ud558\uc5ec \ud074\ub7ec\uc2a4\ud130\ub41c \uc138\uc158\uc744 \uc27d\uac8c \uc9c0\uc6d0\ud560 \uc218 \uc788\uc73c\uba70 \uac1c\ubc1c\uc790 \uc785\uc7a5\uc5d0\uc11c\ub294 \uc644\uc804\ud788 \ud22c\uba85\ud569\ub2c8\ub2e4. \ub2e4\uc74c \uc885\uc18d\uc131\uc744 \ucd94\uac00\ud558\uae30\ub9cc \ud558\uba74 \ub429\ub2c8\ub2e4:<\/p>\n

<dependency>\r\n\t<groupId>io.github.couchbaselabs<\/groupId>\r\n\t<artifactId>spring-session-data-couchbase<\/artifactId>\r\n\t<version>1.1<\/version>\r\n<\/dependency><\/pre>\n
\ub97c \ucd94\uac00\ud55c \ub2e4\uc74c \uba54\uc778 \ud074\ub798\uc2a4\uc5d0\uc11c @EnableCouchbaseHttpSession<\/strong> \uc5b4\ub178\ud14c\uc774\uc158:<\/p>\n
@SpringBootApplication\r\n@EnableCouchbaseHttpSession\r\npublic class SessionStoreApplication {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tSpringApplication.run(SessionStoreApplication.class, args);\r\n\t}\r\n\r\n}<\/pre>\n
\ub97c \uc785\ub825\ud558\uba74 \ub05d\uc785\ub2c8\ub2e4! \uc774\uc81c\ubd80\ud130\ub294 Spring\uc774 \uc790\ub3d9\uc73c\ub85c HTTPS\uc138\uc158\uc744 Couchbase\uc5d0 \uc800\uc7a5\ud569\ub2c8\ub2e4:<\/p>\n
    @GetMapping(\"\/newSession\")\r\n    public String newSession(HttpServletRequest request, Model model) throws Exception {\r\n\r\n        request.getSession().invalidate();\r\n        HttpSession newSession = request.getSession();\r\n        newSession.setAttribute(\"foo\", new Foo(\"key\", \"value\"));\r\n        return defaultPage(model, newSession);\r\n    }<\/pre>\n
\uae30\ubcf8\uc801\uc73c\ub85c \uc138\uc158\uc740 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \"\"\uc640 \uac19\uc740 \uc720\ud615\uc758 \ubb38\uc11c\ub85c \uc800\uc7a5\ub429\ub2c8\ub2e4.\uc138\uc158<\/strong>“:<\/p>\n
\/\/key : 5b357ade-6059-4d16-aea3-6f784765e7b5\r\n\r\n\r\n{\r\n  \"_principal\": null,\r\n  \"_interval\": 1800,\r\n  \"_expireAt\": 1554743279889,\r\n  \"_created\": 1554741479889,\r\n  \"_accessed\": 1554741479889,\r\n  \"_type\": \"sessions\",\r\n  \"_attr\": \"\\\"rO0ABXNyABFqYXZhLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9hZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAx3CAAAABAAAAABdAADZm9vc3IAHWNvbS5jYi5zZXNzaW9uc3RvcmUubW9kZWwuRm9vO5F+XaK9pV0CAAJMAAphdHRyaWJ1dGUxdAASTGphdmEvbGFuZy9TdHJpbmc7TAAKYXR0cmlidXRlMnEAfgAEeHB0AAZ2YWx1ZTF0AAZ2YWx1ZTJ4\\\"\"\r\n}<\/pre>\n
\uadf8\ub7ec\ub098 \uc720\ud615 \uc18d\uc131\uc758 \uc774\ub984, \uc720\ud615 \uac12 \ubc0f \uc138\uc158 \uc9c0\uc18d \uc2dc\uac04\uc744 \ubcc0\uacbd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n
@SpringBootApplication\r\n@EnableCouchbaseHttpSession(typeName = \"myType\",  typeValue = \"myValueType\", maxInactiveIntervalInSeconds = 1800)\r\npublic class SessionStoreApplication {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tSpringApplication.run(SessionStoreApplication.class, args);\r\n\t}\r\n\r\n}<\/pre>\n
 <\/p>\n
\uc0ac\uc6a9\uc790 \uc138\uc158 \ucffc\ub9ac\ud558\uae30<\/h2>\n
\n
\ubaa8\ub4e0 \uc138\uc158\uc758 \ub370\uc774\ud130\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc5b4\ud2b8\ub9ac\ubdf0\ud2b8\uc5d0 \ubc14\uc774\ub108\ub9ac\ub85c \uc800\uc7a5\ub429\ub2c8\ub2e4.\u00a0_attr:<\/strong><\/p>\n<\/div>\n
{\r\n...\r\n  \"_attr\": \"\\\"rO0ABXNyABFqYXZhLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9hZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAx3CAAAABAAAAABdAADZm9vc3IAHWNvbS5jYi5zZXNzaW9uc3RvcmUubW9kZWwuRm9vO5F+XaK9pV0CAAJMAAphdHRyaWJ1dGUxdAASTGphdmEvbGFuZy9TdHJpbmc7TAAKYXR0cmlidXRlMnEAfgAEeHB0AAZ2YWx1ZTF0AAZ2YWx1ZTJ4\\\"\"\r\n}<\/pre>\n
Spring\uc740 \uc138\uc158\uc5d0 \uc5b4\ub5a4 \uac1d\uccb4 \uc720\ud615\uc774 \uc788\ub294\uc9c0 \uc54c\uc9c0 \ubabb\ud558\ubbc0\ub85c \uc0ac\ub78c\uc774 \uc77d\uc744 \uc218 \uc788\ub294 \ud615\uc2dd\uc73c\ub85c \ubcc0\ud658\ud560 \uc218 \uc788\ub294 \uc26c\uc6b4 \ubc29\ubc95\uc774 \uc5c6\uc2b5\ub2c8\ub2e4. \uc18d\uc131\uc744 \uc124\uc815\ud558\uc5ec \uc774 \uc81c\ud55c\uc744 \uadf9\ubcf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\u00a0keepStringAsLiteral<\/strong>\u00a0\uc5d0\uc11c \uc0ac\uc2e4\uacfc \uac19\uc774\u00a0EnableCouchbaseHttpSession<\/strong> \uc5b4\ub178\ud14c\uc774\uc158:<\/p>\n
@SpringBootApplication\r\n@EnableCouchbaseHttpSession(keepStringAsLiteral = true)\r\npublic class SessionStoreApplication {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tSpringApplication.run(SessionStoreApplication.class, args);\r\n\t}\r\n\r\n}<\/pre>\n
\n
keepStringAsLiteral<\/strong>\u00a0\uac00 \uc54c\ub824\uc904 \uac83\uc785\ub2c8\ub2e4. \uce74\uc6b0\uce58\ubca0\uc774\uc2a4 \ubd04 \uc138\uc158<\/a> \ub97c \uc0ac\uc6a9\ud558\uc5ec \ubaa8\ub4e0 \uc138\uc158\uc758 \ubb38\uc790\uc5f4 \uc18d\uc131\uc744 \ubb38\uc11c \ub0b4\uc758 \ucd5c\uc0c1\uc704 \ud504\ub85c\ud37c\ud2f0\ub85c \uc800\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc138\uc158\uc5d0 \uc9c1\uc811 \uc778\uc2a4\ud134\uc2a4\ub97c \ucd94\uac00\ud558\ub294 \ub300\uc2e0 \uc7ad\uc2a8\uc758\u00a0\uc624\ube0c\uc81d\ud2b8 \ub9f5\ud37c<\/code>:<\/p>\n<\/div>\n
\n
\n
ObjectMapper mapper = new ObjectMapper();\r\nsession.setAttribute(\"key\", mapper.writeValueAsString(myClassInstance))<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
\uadf8\ub7f0 \ub2e4\uc74c \uc138\uc158 \uce74\ud2b8\ub97c \uc77d\uc5b4\uc57c \ud560 \ub54c \ub2e4\uc2dc \uac1d\uccb4\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4:<\/p>\n<\/div>\n
\n
\n
ObjectMapper mapper = new ObjectMapper();\r\nmapper.readValue( session.getAttribute(\"key\").toString(), MyClass.class);<\/code><\/pre>\n<\/div>\n<\/div>\n
\uc774\ub807\uac8c \ud558\uba74 \uc138\uc158\uc5d0\uc11c \ub370\uc774\ud130\ub97c \ucd94\uac00\/\uc81c\uac70\/\uc5c5\ub370\uc774\ud2b8\ud574\uc57c \ud560 \ub54c \uc57d\uac04\uc758 \ucd94\uac00 \uc791\uc5c5\uc774 \ucd94\uac00\ub418\uc9c0\ub9cc \ubc18\ub300\ub85c \uc138\uc158\uc744 \ucffc\ub9ac\ud560 \uc218 \uc788\uac8c \ub429\ub2c8\ub2e4. \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\uc11c \ubb38\uc11c\uac00 \uc5b4\ub5bb\uac8c \ud45c\uc2dc\ub418\ub294\uc9c0\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/div>\n
<\/div>\n
\n
\/\/key : 5b2a2487-4825-43de-b089-1b61703556b2\r\n\r\n{\r\n  \"_principal\": null,\r\n  \"_interval\": 1800,\r\n  \"_expireAt\": 1554746972015,\r\n  \"_created\": 1554745163803,\r\n  \"_accessed\": 1554745172015,\r\n  \"key\": \"{\\\"shoppingCart\\\":{\\\"created\\\":1554745170784,\\\"items\\\":[{\\\"itemName\\\":\\\"Tennis Shoes\\\",\\\"price\\\":38.25186017511709,\\\"quantity\\\":3}]},\\\"user\\\":{\\\"username\\\":\\\"robertst\\\",\\\"phoneNumber\\\":\\\"(500)-383-1668\\\"},\\\"location\\\":{\\\"address\\\":\\\"90 Arrowhead Avenue Jonesboro, GA 30236\\\",\\\"country\\\":\\\"USA\\\",\\\"coordinates\\\":{\\\"lat\\\":10,\\\"lon\\\":37}}}\",\r\n  \"_type\": \"sessions\",\r\n  \"_attr\": \"\\\"rO0ABXNyABFqYXZhLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9hZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAB3CAAAABAAAAAAeA==\\\"\"\r\n}<\/pre>\n
\uc5ec\uc804\ud788 _att<\/strong> \uc5b4\ud2b8\ub9ac\ubdf0\ud2b8\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc774\uc81c \uac1d\uccb4\uc5d0 \ub300\ud55c \ud0a4\uc785\ub2c8\ub2e4,<\/strong> \ub294 \uc774\uc804 \uc608\uc81c\uc5d0\uc11c \uc138\uc158\uc5d0 \ucd94\uac00\ud55c \uac1d\uccb4\uc640 \uc815\ud655\ud788 \uc77c\uce58\ud569\ub2c8\ub2e4.<\/p>\n<\/div>\n
\uc774\uc81c \uc138\uc158\uc744 \ucffc\ub9ac\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4, N1QL<\/a>\u00a0\ub77c\ub294 \ud568\uc218\uac00 \uc788\uc2b5\ub2c8\ub2e4.\u00a0DECODE_JSON<\/a>\ub97c \uc0ac\uc6a9\ud558\uc5ec JSON\uc73c\ub85c \uc778\ucf54\ub529\ub41c \ubb38\uc790\uc5f4\uc744 \uac1d\uccb4\ub85c \uc5b8\ub9c8\uc0ec\ub9c1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n
SELECT\r\n    meta().id as id, _created, ARRAY_COUNT(DECODE_JSON(sessionCart).shoppingCart.items)\r\nFROM sessionstore\r\nORDER BY _created DESC\r\nLIMIT 10<\/pre>\n
\ucc38\uace0:<\/strong> \ud504\ub85c\ub355\uc158 \ud658\uacbd\uc5d0\uc11c\ub294 \ucffc\ub9ac \uc2dc\uc810\uc5d0 \ub514\ucf54\ub529\ud558\ub294 \ub300\uc2e0 \ub514\ucf54\ub529\ub41c \uc624\ube0c\uc81d\ud2b8\ub85c \uc778\ub371\uc2a4\ub97c \uc0dd\uc131\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n
Couchbase \uc2a4\ud504\ub9c1 \uc138\uc158\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\ub824\uba74 \ub2e4\uc74c\uc744 \ud655\uc778\ud558\uc138\uc694. \ud29c\ud1a0\ub9ac\uc5bc<\/a><\/p>\n
\uad81\uae08\ud55c \uc810\uc774 \uc788\uc73c\uba74 \uc5b8\uc81c\ub4e0\uc9c0 \ub2e4\uc74c \uc8fc\uc18c\ub85c \ubb38\uc758\ud574 \uc8fc\uc138\uc694. \ub370\ub2c8\uc2a4\ube0c\ub85c\uc0ac<\/a><\/p>\n
<\/div>\n
<\/div>","protected":false},"excerpt":{"rendered":"
Sticky Sessions refers to the need to redirect the requests of a given user to the same server where his session lives in. It is considered an anti-pattern as in case of a server failure, all users connected to it […]<\/p>","protected":false},"author":8754,"featured_media":7000,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1818],"tags":[1424],"ppma_author":[9059],"class_list":["post-6926","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-spring"],"acf":[],"yoast_head":"\nGetting Rid of Sticky Sessions in Java | Couchbase Spring Session<\/title>\n<meta name=\"description\" content=\"Learn what is Sticky Sessions and how to get rid of it in Java. See how Couchbase is a solution for this. Also, check Couchbase Spring Session.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.couchbase.com\/blog\/ko\/sticky-sessions\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Getting Rid of Sticky Sessions in Java | Couchbase Spring Session\" \/>\n<meta property=\"og:description\" content=\"Learn what is Sticky Sessions and how to get rid of it in Java. See how Couchbase is a solution for this. 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