{"id":835,"date":"2018-01-10T17:08:47","date_gmt":"2018-01-11T02:08:47","guid":{"rendered":"\/blog\/?p=835"},"modified":"2023-09-21T09:37:38","modified_gmt":"2023-09-21T00:37:38","slug":"xpathxml-path-language","status":"publish","type":"post","link":"https:\/\/hasu0707.duckdns.org\/blog\/?p=835","title":{"rendered":"XPath(XML Path Language)"},"content":{"rendered":"\n

\ucd9c\ucc98 : http:\/\/www.nextree.co.kr\/p6278\/<\/a><\/p>\n


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\ub54c\ub294 \ub2a6\uc740 \uac00\uc744.. \ubb34\ub354\uc704\uac00 \ud55c\ud480 \uaebd\uc77c \ubb34\ub835 \ub2f4\ub2f9\uc5c5\ubb34\uc758 \uae4c\ub2e4\ub85c\uc6b4 \uc694\uad6c\uc0ac\ud56d\uc73c\ub85c \uace0\ubbfc\uc5d0 \ube60\uc838\uc788\ub358 \uc800\ub294 \ud504\ub85c\uc81d\ud2b8PM\ub2d8\uc758 \uc18c\uac1c\ub85c \uc774 \uae30\uc220\uacfc \ucc98\uc74c \ub9cc\ub0ac\uc2b5\ub2c8\ub2e4. \ub450\ub824\uc6c0 \ubc18 \uc124\ub818 \ubc18\uc73c\ub85c \uc774 \uae30\uc220\uc744 \ub300\uba74\ud588\ub358 \uc21c\uac04\uacfc\ub294 \ub2ec\ub9ac \uc774 \uae30\uc220\uc744 \uc4f0\uba74 \uc4f8\uc218\ub85d \ub354\uc6b1 \ub354 \uc774 \uae30\uc220\uc5d0 \ub9e4\ub8cc \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \uc774 \uae30\uc220\uc744 \uc500\uacfc \ub3d9\uc2dc\uc5d0 \ub9e4\uc6b0 \uc81c\ud55c\uc801\uc774\uace0, \uc720\uc5f0\ud558\uc9c0 \ubabb\ud588\ub358 \ud328\ud0a4\uc9c0 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ud65c\ub825\uc744 \ubd88\uc5b4 \ub123\uc5c8\uc73c\ub2c8\uae4c\uc694. \uadf8\ub798\uc11c \ubcf5\uc7a1 \ub2e4\uc591\ud588\ub358 \uc694\uad6c\uc0ac\ud56d\uc744 \uba4b\uc9c0\uac8c \ud574\uacb0 \ud560 \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc774 \uae30\uc220\uc744 \uc120\ud0dd\ud558\uae30 \uae4c\uc9c0 \uba87 \uac00\uc9c0 \ub300\uc548\uc740 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \ud328\ud0a4\uc9c0 \ub0b4\uc7a5\ud568\uc218\uc0ac\uc6a9\uacfc \uc804\ubb38 \uc218\uc815 \ub4f1\uc774 \uadf8\uac83 \uc774\uc5c8\ub294\ub370, \uba3c\uc800 \ud328\ud0a4\uc9c0 \ub0b4\uc7a5 \ud568\uc218\ub294 \ud328\ud0a4\uc9c0\uc5d0 \uc885\uc18d\ub418\uc5b4\uc788\uc5c8\uae30 \ub54c\ubb38\uc5d0 \ud574\ub2f9 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \ud604\uc7ac \ud504\ub85c\uc81d\ud2b8 \uc0c1\ud669\uc5d0 \ub9de\uac8c \ucee4\uc2a4\ud130\ub9c8\uc774\uc9d5 \ud574\uc57c \ud558\ub294 \ubb38\uc81c\uc810\uc774 \uc788\uc5c8\uace0, \uc774\ub97c \uc704\ud574\uc11c\ub294 \ucd94\uac00\ube44\uc6a9\uc774 \ubc1c\uc0dd\ud560 \uc218 \ubc16\uc5d0 \uc5c6\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ub450 \ubc88\uc9f8 \ub300\uc548\uc740 \ub2e4\uc591\ud55c \ucd9c\ub825\uc591\uc2dd\uc744 \uc801\uc6a9\ud558\uace0 \uc788\ub294 \uc0c1\ud669\uc5d0\uc11c \uc804\ubb38 \uc790\uccb4\ub97c \uc218\uc815\ud55c\ub2e4\ub294 \uac83\uc740 \uac1c\ubc1c \uc2dc\uae30 \uc0c1 \ub9de\uc9c0 \uc54a\ub2e4\ub294 \ubb38\uc81c\uc810\uc774 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uc774 \ub54c\ubb38\uc5d0 \uc5ed\uc2dc XPapth\uac00 \uac00\uc7a5 \uc720\ub825\ud55c \ub300\uc548\uc774 \ub420 \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub798\uc11c \uc624\ub298\uc740 \uadf8 \uae30\uc5b5\uc744 \ub418\uc0b4\ub824 \uc774 \uae30\uc220\uc758 \uc815\uccb4\ub97c \uc7ac \uc870\uba85 \ud574 \ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

XPath\uc758 \uc815\uc758\uc640 \ud2b9\uc9d5<\/h2>

XPath(XML Path Language)\ub294 W3C\uc758 \ud45c\uc900\uc73c\ub85c XML(Extensible Markup Language)\ubb38\uc11c\uc758 \uad6c\uc870\ub97c \ud1b5\ud574 \uacbd\ub85c(Path)\uc704\uc5d0 \uc9c0\uc815\ud55c \uad6c\ubb38\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud56d\ubaa9\uc744 \ubc30\uce58\ud558\uace0 \ucc98\ub9ac\ud558\ub294 \ubc29\ubc95\uc744 \uae30\uc220\ud558\ub294 \uc5b8\uc5b4\uc785\ub2c8\ub2e4. XML \ud45c\ud604\ubcf4\ub2e4 \ub354 \uc27d\uace0 \uc57d\uc5b4\ub85c \ub418\uc5b4 \uc788\uc73c\uba70, XSL\ubcc0\ud658(XSLT)\uacfc XML\uc9c0\uc2dc\uc790 \uc5b8\uc5b4(XPointer)\uc5d0 \uc4f0\uc774\ub294 \uc5b8\uc5b4\ub85c XML \ubb38\uc11c\uc758 Node\ub97c \uc815\uc758\ud558\uae30 \uc704\ud558\uc5ec \uacbd\ub85c\uc2dd(Path Expression)\uc744 \uc0ac\uc6a9\ud558\uba70, \uc218\ud559 \ud568\uc218\uc640 \uae30\ud0c0 \ud655\uc7a5 \uac00\ub2a5\ud55c \ud45c\ud604\ub4e4\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

XPath\ub294 W3C\uc758 \uad8c\uace0 \uc0ac\ud56d\uc73c\ub85c \uacac\uace0\ud55c \ud45c\uc900\uc774 \ud655\ub9bd\ub418\uc5b4 \uc788\uace0, \ub2e4\uc591\ud55c API\uc640 \ud568\uc218, \uacbd\ub85c \uc2dd(Path Expression)\ub355\ubd84\uc5d0 \uc720\uc5f0\uc131\uacfc \ud655\uc7a5\uc744 \uc694\ud558\ub294 \uc11c\ubc84 \ud1b5\uc2e0\uc774\ub098 \ub3c4\ud050\uba3c\ud2b8 \ucd9c\ub825, \uae30\ud0c0 XML\uc744 \uc0ac\uc6a9\ud558\ub294 \uc5ec\ub7ec \ubd84\uc57c\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

XPath\uc758 \ub370\uc774\ud130 \ubaa8\ub378<\/h2>

\u2460 XML \ubb38\uc11c\ub294 \ud2b8\ub9ac \uad6c\uc870\uc758 Node\ub4e4\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. 
\u2461 XML \ubb38\uc11c\uc758 \ud2b8\ub9ac \uad6c\uc870\ub294 \ub2e8\uc9c0 \uac1c\ub150\uc801 \uad6c\uc870\uc785\ub2c8\ub2e4. 
\u2462 XPath\ub294 XML \ubb38\uc11c\ub97c \ud2b8\ub9ac \uad6c\uc870\ub85c \ubaa8\ub378\ub9c1 \ud558\uc5ec \ucc98\ub9ac\ud569\ub2c8\ub2e4. 
\u2463 XML \ubb38\uc11c\uc758 \uacc4\uce35\uad6c\uc870, \uc989 \ud2b8\ub9ac \uad6c\uc870\uc5d0\uc11c Node\ub4e4\uc744 \uc2dd\ubcc4, \uc120\ud0dd, \uc870\uc791\ud558\uae30 \uc704\ud574 XPath \ud45c\ud604 \uc2dd\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

XPath Terminology<\/h2>

XPath\ub97c \uc774\ud574\ud558\uae30 \uc704\ud574\uc11c\ub294 XPath\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc6a9\uc5b4\uc5d0 \uce5c\uc219\ud574 \uc9c8 \ud544\uc694\uac00 \uc788\uaca0\uc2b5\ub2c8\ub2e4. XML\uc744 \uae30\ubc18\uc73c\ub85c \uad6c\uc870\ub97c \ud30c\uc545\ud558\uae30 \uc704\ud55c XPath\uc758 \uc6a9\uc5b4\uc5d0 \ub300\ud574\uc11c \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\u2460 Nodes: XPath\uc5d0\ub294 Element, Attribute, Text, Namespace, Processing-instruction, Comment, and Document \uc758 \ucd1d 7\uac00\uc9c0\uc758 Node\ub4e4\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. XML\ubb38\uc11c\ub3c4 \ud2b8\ub9ac\ub97c \uad6c\uc131\ud558\ub294 Node\ub85c \ucde8\uae09\ud569\ub2c8\ub2e4. Element\ud2b8\ub9ac \uc911 \ucd5c\uace0 \uc0c1\uc704Element\ub97c Root Element\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/p>\n

\u2461 Atomic values: \ubd80\ubaa8\uc640 \uc790\uc2dd\uc774 \uc5c6\ub294 \ub2e8\uc77c Node\ub4e4\uc758 \uac12\uc744 \ub9d0\ud569\ub2c8\ub2e4. 
\uc608) <TITLE>XPath<\/TITLE><\/code>, <TYPE>A<\/TYPE><\/code><\/p>\n

\u2462 Items: \ub2e8\uc77c \uac12\ub4e4(Atomic values)\uacfc Node\ub4e4\uc744 \ub9d0\ud569\ub2c8\ub2e4. 
\uc608) <TITLE><\/code>, A<\/p>\n

\u2463 Node\ub4e4 \uac04\uc758 \uad00\uacc4: XPath\uc758 \uac01 Node\ub4e4\uc740 \ub2e4\uc74c\uc758 \uad00\uacc4\ub97c \uac00\uc9d1\ub2c8\ub2e4.<\/p>\n