{"id":552,"date":"2022-03-22T22:01:46","date_gmt":"2022-03-22T13:01:46","guid":{"rendered":"http:\/\/160.251.208.217\/?p=552"},"modified":"2022-11-19T19:27:21","modified_gmt":"2022-11-19T10:27:21","slug":"xpath-edge2","status":"publish","type":"post","link":"https:\/\/it-dxblog.com\/blog\/xpath-edge2\/","title":{"rendered":"\u3010JavaScript\u3011XPath\u3092\u4f7f\u7528\u3059\u308b#2\u3000\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u7de8"},"content":{"rendered":"\n

\u3053\u3061\u3089<\/a>\u306e\u8a18\u4e8b\uff08#1\uff09\u306e\u6700\u5f8c\u306b\u66f8\u3044\u3066\u3042\u308b\u901a\u308a\u3001document.evaluate\u30e1\u30bd\u30c3\u30c9<\/strong>\u3092\u7528\u3044\u3066XPath\u306e\u9069\u7528\u3092\u884c\u3046\u969b\u306b\u3001\u623b\u308a\u5024\u306e\u7a2e\u985e\u304c\u6307\u5b9a<\/span><\/strong>\u3067\u304d\u307e\u3059\u3002\u4eca\u56de\u306f\u623b\u308a\u5024\u306e\u7a2e\u985e\u306b\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/strong>\uff08ORDERED_NODE_SNAPSHOT_TYPE\uff09\u3092\u6307\u5b9a\u3057\u3066XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092\u53d6\u308a\u51fa\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n

\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf<\/span><\/span><\/h2>\n\n\n\n

\u4f7f\u7528\u3059\u308bXML\u306f#1\u3068\u540c\u3058\u3082\u306e\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002
\u203b\u30d5\u30a1\u30a4\u30eb\u540d\u306fplayer.xml\u3068\u3057\u3066\u304f\u3060\u3055\u3044<\/p>\n\n\n\n

<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<team>\n  <name>\u30aa\u30ea\u30c3\u30af\u30b9\u30fb\u30d0\u30c3\u30d5\u30a1\u30ed\u30fc\u30ba<\/name>\n  <players>\n    <player>\n      <position>\u6295\u624b<\/position>\n      <name>yamamoto<\/name>\n    <\/player>\n    <player>\n      <position>\u6295\u624b<\/position>\n      <name>miyagi<\/name>\n    <\/player>\n    <player>\n      <position>\u5185\u91ce\u624b<\/position>\n      <name>okada<\/name>\n    <\/player>    \n    <player>\n      <position>\u5185\u91ce\u624b<\/position>\n      <name>adachi<\/name>\n    <\/player>\n    <player>\n      <position>\u5185\u91ce\u624b<\/position>\n      <name>mune<\/name>\n    <\/player>\n    <player>\n      <position>\u5185\u91ce\u624b<\/position>\n      <name>kurebayashi<\/name>\n    <\/player>\n    <player>\n      <position>\u5916\u91ce\u624b<\/position>\n      <name>yoshida<\/name>\n    <\/player>\n    <player>\n      <position>\u5916\u91ce\u624b<\/position>\n      <name>sugimoto<\/name>\n    <\/player>\n    <player>\n      <position>\u5916\u91ce\u624b<\/position>\n      <name>fukuda<\/name>\n    <\/player>\n  <\/players>\n<\/team><\/code><\/pre><\/div>\n\n\n\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/span><\/span><\/h2>\n\n\n\n
\u7d9a\u3044\u3066HTML\u3068JavaScript\u3067\u3059\u3002
\u4e0a\u8a18\u306eXML\u3068\u4f75\u305b\u3066Web\u30b5\u30fc\u30d0\u30fc<\/strong>\u4e0a\u306b\u4fdd\u7ba1\u3057\u3066\u8868\u793a\u3055\u305b\u3066\u304f\u3060\u3055\u3044\u3002
\u203b\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3060\u3068\u52d5\u4f5c\u3057\u306a\u3044\u306e\u3067\u6ce8\u610f<\/span><\/strong>
#1\u3068\u540c\u69d8\u306b\u3001XML\u304b\u3089\u5916\u91ce\u624b\u3092XPath\u3092\u9069\u7528\u3057\u3066\u62bd\u51fa\u3057\u3066\u3044\u307e\u3059\u3002
35\u884c\u76ee\uff5e41\u884c\u76ee\u304c#1\u3068\u9055\u3046\u90e8\u5206\u306b\u306a\u308a\u307e\u3059\u3002
\u203b\u81ea\u4f5c\u95a2\u6570\u306f\u3001\u95a2\u6570\u540d\u3092\u300cmy_\u300d\u304b\u3089\u59cb\u3081\u3066\u3042\u308a\u307e\u3059
\u203bEdge\u3001Google Chrome\u3067\u52d5\u4f5c\u78ba\u8a8d\u6e08<\/p>\n\n\n\n
<!DOCTYPE html>\n\n<html>\n    <head>\n        <script>\n            \/\/ onload\u6642\u306b\u5b9f\u884c\n            function my_onLoad(){\n\n                const objXml = my_loadXML('.\/player.xml');\n\n                let outfielder_list = my_getPlayer(objXml, '\u5916\u91ce\u624b');\n\n                document.write('<h3>\u5916\u91ce\u624b\u4e00\u89a7<\/h3>');\n                for (let i=0; i<outfielder_list.length; i++){\n                    document.write(outfielder_list[i] + '<br>');\n                }\n            }\n\n            \/\/ XML\u3092\u8aad\u307f\u8fbc\u3080\n            \/\/ path : \u8aad\u307f\u8fbc\u3080XML\u306e\u30d1\u30b9\n            function my_loadXML(path){\n                let objXml = new XMLHttpRequest();\n                objXml.open('GET', path, false);\n                objXml.send('');\n                return objXml.responseXML;\n            }\n\n            \/\/ position\u3067\u6307\u5b9a\u3057\u305f\u9078\u624b\u3092\u914d\u5217\u3067\u8fd4\u3059\n            function my_getPlayer(objXml, position) {\n\n                \/\/ XPath\u3092\u4f5c\u6210\n                let xPath = \"\/\/player\/name[..\/position='\" + position + \"']\";\n\n                \/\/ XPath\u3092\u9069\u7528\n                let result = objXml.evaluate(xPath, objXml, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);\n\n                \/\/ XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092\u914d\u5217\u306b\u4fdd\u5b58\n                let result_list = new Array();\n                for(let i=0; i<result.snapshotLength; i++){\n                    result_list.push(result.snapshotItem(i).textContent);    \n                }\n                return result_list;\n            }\n        <\/script>\n    <\/head>\n    <body onload='my_onLoad()'>\n    <\/body>\n<\/html><\/code><\/pre><\/div>\n\n\n\n
\u5b9f\u969b\u306b\u5b9f\u884c\u3059\u308b\u3068#1\u3068\u540c\u69d8\u3001\u4e0b\u8a18\u306e\u69d8\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u7d50\u679c\u306e\u53d6\u308a\u51fa\u3057\u65b9\u306e\u9055\u3044<\/span><\/span><\/h2>\n\n\n\n
\u30ce\u30fc\u30c8\u30bb\u30c3\u30c8<\/strong>\uff08ORDERED_NODE_ITERATOR_TYPE\uff09\u3067\u306e\u53d6\u308a\u51fa\u3057\u65b9\u3067\u3059\u3002
iterateNext<\/strong>\u30e1\u30bd\u30c3\u30c9\u3067\u6b21\u306e\u30ce\u30fc\u30c9\u306b\u5bfe\u8c61\u3092\u79fb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\/\/ XPath\u3092\u9069\u7528\uff08\u623b\u308a\u5024\u306f\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\uff09\nlet result = objXml.evaluate(xPath, objXml, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);\n\n\/\/ XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092\u914d\u5217\u306b\u4fdd\u5b58\nlet result_list = new Array();\nlet r;\nwhile (r = result.iterateNext()) {\n    result_list.push(r.textContent);\n}<\/code><\/pre><\/div>\n\n\n\n
\u7d9a\u3044\u3066\u3001\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/strong>\uff08ORDERED_NODE_SNAPSHOT_TYPE\uff09\u3067\u306e\u53d6\u308a\u51fa\u3057\u65b9\u3067\u3059\u3002
snapshotItem\u30e1\u30bd\u30c3\u30c9<\/strong>\u3067\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6307\u5b9a\u3057\u3066\u5bfe\u8c61\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002
\u307e\u305f\u3001snapshotLength\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u3067\u7d50\u679c\u306e\u6570\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\/\/ XPath\u3092\u9069\u7528\uff08\u623b\u308a\u5024\u306f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\uff09\nlet result = objXml.evaluate(xPath, objXml, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);\n\n\/\/ XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092\u914d\u5217\u306b\u4fdd\u5b58\nlet result_list = new Array();\nfor(let i=0; i<result.snapshotLength; i++){\n    result_list.push(result.snapshotItem(i).textContent);    \n}<\/code><\/pre><\/div>\n\n\n\n
\u3061\u306a\u307f\u306b\u4e21\u65b9\u3067\u5171\u901a\u3057\u3066\u3044\u308btextContent<\/strong>\u306f\u30ce\u30fc\u30c9\u5185\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002
\u30b3\u30fc\u30c9\u4f8b\u306eXPath\u3001\u201d\/\/player\/name[..\/position=\u2019\u5916\u91ce\u624b\u2019]\u201d\u3067\u306f\u3001<name>\u3092\u62bd\u51fa\u3057\u3066\u3044\u308b\u306e\u3067\u3001<name>\u5185\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002
\u4f8b\u3048\u3070\u3001<name>yoshida<\/name>\u306e\u5834\u5408\u306f\u3001\u300cyoshida\u300d\u304c\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
XPath\u3092\u201d\/\/player[.\/position=\u2019\u5916\u91ce\u624b\u2019] \u201d\u306e\u3088\u3046\u306b<palyer>\u3092\u62bd\u51fa\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3001textContent<\/strong>\u3092\u4f7f\u3046\u3068<palyer>\u5185\u306e\u5168\u3066\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u53d6\u5f97\u3057\u3066\u3057\u307e\u3046\u306e\u3067\u6ce8\u610f<\/span><\/strong>\u3067\u3059\u3002
\u4f8b\u3048\u3070\u3001\u6b21\u306e\u5834\u5408\u306f\u300c\u5916\u91ce\u624byoshida\u300d\u304c\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
<player>\n    <position>\u5916\u91ce\u624b<\/position>\n    <name>yoshida<\/name>\n<\/player><\/code><\/pre><\/div>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u3061\u3089\u306e\u8a18\u4e8b\uff08#1\uff09\u306e\u6700\u5f8c\u306b\u66f8\u3044\u3066\u3042\u308b\u901a\u308a\u3001document.evaluate\u30e1\u30bd\u30c3\u30c9\u3092\u7528\u3044\u3066XPath\u306e\u9069\u7528\u3092\u884c\u3046\u969b\u306b\u3001\u623b\u308a\u5024\u306e\u7a2e\u985e\u304c\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u4eca\u56de\u306f\u623b\u308a\u5024\u306e\u7a2e\u985e\u306b\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\uff08ORDERED_NODE_SNA … <\/p>\n","protected":false},"author":1,"featured_media":2092,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"categories":[8],"tags":[32],"class_list":["post-552","post","type-post","status-publish","format-standard","has-post-thumbnail","category-javascript","tag-xml","entry"],"_links":{"self":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts\/552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/comments?post=552"}],"version-history":[{"count":5,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts\/552\/revisions"}],"predecessor-version":[{"id":843,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts\/552\/revisions\/843"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/media\/2092"}],"wp:attachment":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/media?parent=552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/categories?post=552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/tags?post=552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}