{"id":25174,"date":"2023-04-29T11:07:40","date_gmt":"2023-04-29T02:07:40","guid":{"rendered":"https:\/\/m9js.shop\/blog\/?p=25174"},"modified":"2023-04-29T18:17:17","modified_gmt":"2023-04-29T09:17:17","slug":"resttemplate-basic-usage-spring-web-client-communication-guide","status":"publish","type":"post","link":"https:\/\/m9js.shop\/blog\/development\/resttemplate-basic-usage-spring-web-client-communication-guide","title":{"rendered":"RestTemplate \uae30\ubcf8 \uc0ac\uc6a9\ubc95: \uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc"},"content":{"rendered":"

RestTemplate \uae30\ubcf8 \uc0ac\uc6a9\ubc95: \uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc===<\/p>\n

\uc2a4\ud504\ub9c1\uc740 \ub300\uaddc\ubaa8\uc758 \uc6f9 \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\uae30 \uc704\ud55c \ud504\ub808\uc784\uc6cc\ud06c\ub85c, \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \ud1b5\uc2e0\uc744 \uc704\ud55c RestTemplate\uc740 \ud544\uc218\uc801\uc778 \uae30\ub2a5 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 RestTemplate\uc758 \uae30\ubcf8 \uc0ac\uc6a9\ubc95\uacfc \uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc\ub97c \uc18c\uac1c\ud558\uace0, RESTful API \ud638\ucd9c \ubc29\ubc95\uc5d0 \ub300\ud574 \uc774\uc57c\uae30\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

RestTemplate \uae30\ubcf8 \uc0ac\uc6a9\ubc95 \uc18c\uac1c<\/h2>\n

RestTemplate\uc740 \uc2a4\ud504\ub9c1\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 HTTP \ud074\ub77c\uc774\uc5b8\ud2b8 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc785\ub2c8\ub2e4. RestTemplate\uc744 \uc0ac\uc6a9\ud558\uba74 \ub2e4\uc591\ud55c HTTP \uc694\uccad\uc744 \ubcf4\ub0b4\uace0, \uc751\ub2f5\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. RestTemplate\uc758 \uc8fc\uc694 \uae30\ub2a5\uc740 GET, POST, PUT, DELETE \ub4f1\uc758 HTTP \uba54\uc18c\ub4dc\ub97c \uc81c\uacf5\ud558\uba70, JSON, XML \ub4f1\uc758 \ub370\uc774\ud130 \ud615\uc2dd\ub3c4 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>\n

RestTemplate restTemplate = new RestTemplate();\nString url = \"https:\/\/api.example.com\/users\/{userId}\";\nUser user = restTemplate.getForObject(url, User.class, 1);<\/code><\/pre>\n
RestTemplate\uc758 \uae30\ubcf8 \uc0ac\uc6a9\ubc95\uc740 \uc704\uc640 \uac19\uc774 HTTP GET \uc694\uccad\uc744 \ubcf4\ub0b4\uace0, JSON \ud615\uc2dd\uc758 \uc751\ub2f5\uc744 User \ud074\ub798\uc2a4 \uac1d\uccb4\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. RestTemplate\uc740 \uc790\ub3d9\uc73c\ub85c JSON\uc744 \ud30c\uc2f1\ud558\uc5ec \uac1d\uccb4\ub85c \ubcc0\ud658\ud558\uba70, URL\uc5d0 \ubcc0\uc218\ub97c \ud3ec\ud568\uc2dc\ucf1c \uc694\uccad\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc<\/h2>\n
\uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc\ub294 RestTemplate\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc678\ubd80 API\uc640 \ud1b5\uc2e0\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud55c \uba85\uc138\uc11c\uc785\ub2c8\ub2e4. \uc774 \uac00\uc774\ub4dc\ub294 \uc2a4\ud504\ub9c1\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uc5ec\ub7ec \uae30\uc220\ub4e4\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \ud1b5\uc2e0\uc744 \ucd5c\uc801\ud654\ud558\uace0, \ubcf4\uc548\uc744 \uac15\ud654\ud558\ub294 \ub4f1\uc758 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n
@Configuration\npublic class RestTemplateConfig {\n\n    @Bean\n    public RestTemplate restTemplate() {\n        RestTemplate restTemplate = new RestTemplate();\n        restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());\n        restTemplate.setErrorHandler(new RestTemplateResponseErrorHandler());\n        return restTemplate;\n    }\n}<\/code><\/pre>\n
RestTemplateConfig \ud074\ub798\uc2a4\ub294 RestTemplate\uc744 \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 JSON \ud615\uc2dd\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc73c\ub85c \uc124\uc815\ud558\uace0, \uc5d0\ub7ec \ud578\ub4e4\ub7ec\ub97c \ub4f1\ub85d\ud558\uc5ec \uc624\ub958 \ucc98\ub9ac\ub97c \uac1c\uc120\ud569\ub2c8\ub2e4.<\/p>\n
RestTemplate\ub97c \ud65c\uc6a9\ud55c RESTful API \ud638\ucd9c \ubc29\ubc95<\/h2>\n
RestTemplate\uc744 \uc0ac\uc6a9\ud558\uc5ec RESTful API\ub97c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\uc740 \uac04\ub2e8\ud569\ub2c8\ub2e4. HTTP \uc694\uccad\uc744 \ubcf4\ub0b4\uace0, \uc751\ub2f5\uc744 \ubc1b\ub294 \uac83 \ubfd0\uc785\ub2c8\ub2e4. \uc774 \uc608\uc81c\uc5d0\uc11c\ub294 OpenWeatherMap API\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub3c4\uc2dc\uc758 \ub0a0\uc528 \uc815\ubcf4\ub97c \uac00\uc838\uc624\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n
RestTemplate restTemplate = new RestTemplate();\nString url = \"https:\/\/api.openweathermap.org\/data\/2.5\/weather?q={city}&appid={apiKey}\";\nWeather weather = restTemplate.getForObject(url, Weather.class, \"Seoul\", \"1234567890\");<\/code><\/pre>\n
\uc704\uc758 \ucf54\ub4dc\uc5d0\uc11c\ub294 OpenWeatherMap API\uc5d0\uc11c \ub3c4\uc2dc\uc758 \ub0a0\uc528 \uc815\ubcf4\ub97c \uac00\uc838\uc624\uae30 \uc704\ud574 HTTP GET \uc694\uccad\uc744 \ubcf4\ub0b4\uace0, \uc751\ub2f5\uc744 Weather \ud074\ub798\uc2a4 \uac1d\uccb4\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. URL\uc5d0 \ubcc0\uc218\ub97c \ud3ec\ud568\uc2dc\ucf1c \uc694\uccad\ud560 \uc218 \uc788\uc73c\uba70, API \ud0a4\ub3c4 \ud568\uaed8 \uc804\uc1a1\ud558\uc5ec \uc778\uc99d\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n
===OUTRO:===<\/p>\n
\uc774\ubc88 \uae00\uc5d0\uc11c\ub294 RestTemplate\uc758 \uae30\ubcf8 \uc0ac\uc6a9\ubc95\uacfc \uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc\ub97c \uc18c\uac1c\ud558\uc600\uc2b5\ub2c8\ub2e4. RestTemplate\uc740 HTTP \ud074\ub77c\uc774\uc5b8\ud2b8 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub85c, \ub2e4\uc591\ud55c HTTP \uc694\uccad\uc744 \ubcf4\ub0b4\uace0, \uc751\ub2f5\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud1b5\uc2e0 \uac00\uc774\ub4dc\ub294 RestTemplate\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc678\ubd80 API\uc640 \ud1b5\uc2e0\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud55c \uba85\uc138\uc11c\ub85c, \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \ud1b5\uc2e0\uc744 \ucd5c\uc801\ud654\ud558\uace0, \ubcf4\uc548\uc744 \uac15\ud654\ud558\ub294 \ub4f1\uc758 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. RestTemplate\uc744 \uc0ac\uc6a9\ud558\uc5ec RESTful API\ub97c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\ub3c4 \uac04\ub2e8\ud558\uba70, HTTP \uc694\uccad\uc744 \ubcf4\ub0b4\uace0, \uc751\ub2f5\uc744 \ubc1b\ub294 \uac83 \ubfd0\uc785\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub2e4\uc591\ud55c \uc678\ubd80 API\ub97c \ud65c\uc6a9\ud558\uc5ec \uc2a4\ud504\ub9c1 \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub354\uc6b1 \uac15\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\uc2a4\ud504\ub9c1 RestTemplate\uc740 HTTP \ud1b5\uc2e0\uc758 \uae30\ubcf8\uc801\uc778 \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc785\ub2c8\ub2e4. \uc774 \uae30\ub2a5\uc744 \ud65c\uc6a9\ud558\uc5ec \uc2a4\ud504\ub9c1 \uc6f9 \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uad6c\ucd95\ud558\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubd05\uc2dc\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":12633,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1957],"tags":[2119,146,2104,45,2188],"class_list":["post-25174","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-development","tag-api","tag-city","tag-data","tag-new","tag-public"],"acf":[],"_links":{"self":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/25174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/comments?post=25174"}],"version-history":[{"count":0,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/25174\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media\/12633"}],"wp:attachment":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media?parent=25174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/categories?post=25174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/tags?post=25174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}