{"id":16571,"date":"2024-12-28T09:26:14","date_gmt":"2024-12-28T05:56:14","guid":{"rendered":"https:\/\/www.itpiran.net\/blog\/?p=16571"},"modified":"2024-12-28T09:54:17","modified_gmt":"2024-12-28T06:24:17","slug":"what-is-ajax-and-how-it-works","status":"publish","type":"post","link":"https:\/\/www.itpiran.net\/blog\/zh\/tutorials\/what-is-ajax-and-how-it-works\/","title":{"rendered":"\u4ec0\u4e48\u662f AJAX\uff1f\u5b83\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1f"},"content":{"rendered":"<h2 id=\"%d9%85%d9%82%d8%af%d9%85%d9%87\">\u4ecb\u7ecd<\/h2>\n<p>AJAX \u662f\u4ee5\u4e0b\u77ed\u8bed\u7684\u7f29\u5199\uff1a <strong>\u5f02\u6b65 JavaScript \u548c XML<\/strong> AJAX \u662f\u4e00\u79cd\u7528\u4e8e\u521b\u5efa\u52a8\u6001\u4ea4\u4e92\u5f0f Web \u5e94\u7528\u7a0b\u5e8f\u7684\u6280\u672f\u3002\u8fd9\u9879\u6280\u672f\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u5728\u4e0d\u91cd\u65b0\u52a0\u8f7d\u6574\u4e2a\u9875\u9762\u7684\u60c5\u51b5\u4e0b\u66f4\u65b0\u7f51\u9875\u7684\u4e0d\u540c\u90e8\u5206\u3002AJAX \u878d\u5408\u4e86\u591a\u79cd Web \u6280\u672f\uff0c\u8fd9\u4e9b\u6280\u672f\u534f\u540c\u5de5\u4f5c\uff0c\u65e8\u5728\u63d0\u4f9b\u66f4\u4f73\u7684\u7528\u6237\u4f53\u9a8c\u3002.<\/p>\n<h2 id=\"ajax-%da%86%da%af%d9%88%d9%86%d9%87-%da%a9%d8%a7%d8%b1-%d9%85%db%8c%da%a9%d9%86%d8%af%d8%9f\">AJAX\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1f<\/h2>\n<p>AJAX \u7684\u5de5\u4f5c\u539f\u7406\u5f88\u7b80\u5355\uff1a <strong>\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u5f02\u6b65\u901a\u4fe1<\/strong>. \u8fd9\u610f\u5473\u7740\u6d4f\u89c8\u5668\u65e0\u9700\u91cd\u65b0\u52a0\u8f7d\u6574\u4e2a\u9875\u9762\u5373\u53ef\u5411\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u5e76\u63a5\u6536\u54cd\u5e94\u3002.<\/p>\n<h5 id=\"%d8%a7%d8%ac%d8%b2%d8%a7%db%8c-%d8%a7%d8%b5%d9%84%db%8c-ajax\">AJAX \u7684\u4e3b\u8981\u7ec4\u6210\u90e8\u5206<\/h5>\n<ul>\n<li><strong>HTML \u548c CSS\uff1a<\/strong> \u7528\u4e8e\u5c55\u793a\u7f51\u9875\u7684\u7ed3\u6784\u548c\u8bbe\u8ba1\u3002.<\/li>\n<li><strong>JavaScript\uff1a<\/strong> \u7ba1\u7406\u7528\u6237\u4ea4\u4e92\u5e76\u53d1\u9001\u8bf7\u6c42\u3002.<\/li>\n<li><strong>XMLHttpRequest \u6216 Fetch API\uff1a<\/strong> \u5411\u670d\u52a1\u5668\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002.<\/li>\n<li><strong>JSON \u6216 XML \u6570\u636e\uff1a<\/strong> \u670d\u52a1\u5668\u53d1\u9001\u7ed9\u6d4f\u89c8\u5668\u7684\u6570\u636e\u683c\u5f0f\u3002.<\/li>\n<li><strong>\u670d\u52a1\u5668\u548c\u6570\u636e\u5e93\uff1a<\/strong> \u6570\u636e\u5904\u7406\u548c\u7b54\u6848\u751f\u6210\u7684\u5730\u65b9\u3002.<\/li>\n<\/ul>\n<h2 id=\"%d9%85%d8%b1%d8%a7%d8%ad%d9%84-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-ajax\">AJAX\u64cd\u4f5c\u6b65\u9aa4<\/h2>\n<ol>\n<li>\u7528\u6237\u4ea4\u4e92\uff1a\u7528\u6237\u6267\u884c\u64cd\u4f5c\uff0c\u4f8b\u5982\u70b9\u51fb\u6309\u94ae\u6216\u9009\u62e9\u9009\u9879\u3002.<\/li>\n<li>\u521b\u5efa\u8bf7\u6c42\uff1aJavaScript \u521b\u5efa\u4e00\u4e2a XMLHttpRequest \u5bf9\u8c61\u6216\u4f7f\u7528 Fetch API \u53d1\u9001\u8bf7\u6c42\u3002.<\/li>\n<li>\u53d1\u9001\u8bf7\u6c42\uff1a\u8bf7\u6c42\u4ee5\u5f02\u6b65\u65b9\u5f0f\u53d1\u9001\u5230\u670d\u52a1\u5668\u3002.<\/li>\n<li>\u670d\u52a1\u5668\u7aef\u5904\u7406\uff1a\u670d\u52a1\u5668\u63a5\u6536\u8bf7\u6c42\uff0c\u5904\u7406\u8bf7\u6c42\uff0c\u5e76\u51c6\u5907\u76f8\u5e94\u7684\u54cd\u5e94\uff08\u4f8b\u5982 JSON \u6216 HTML \u683c\u5f0f\u7684\u6570\u636e\uff09\u3002.<\/li>\n<li>\u63a5\u6536\u54cd\u5e94\uff1a\u6d4f\u89c8\u5668\u63a5\u6536\u670d\u52a1\u5668\u7684\u54cd\u5e94\u5e76\u5c06\u5176\u4f20\u9012\u7ed9 JavaScript\u3002.<\/li>\n<li>\u9875\u9762\u5237\u65b0\uff1aJavaScript \u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e\u5e76\u66f4\u65b0\u9875\u9762\u7684\u4e00\u90e8\u5206\uff0c\u800c\u65e0\u9700\u91cd\u65b0\u52a0\u8f7d\u3002.<\/li>\n<\/ol>\n<h2 id=\"%d9%86%d9%85%d9%88%d9%86%d9%87-%da%a9%d8%af-%d8%b3%d8%a7%d8%af%d9%87-ajax\">\u7b80\u5355\u7684 AJAX \u4ee3\u7801\u793a\u4f8b<\/h2>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>\/\/ \u0627\u06cc\u062c\u0627\u062f \u0634\u06cc\u0621 XMLHttpRequest\r\nlet xhr = new XMLHttpRequest();\r\n\/\/ \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\r\nxhr.open(\"GET\", \"data.json\", true);\r\n\/\/ \u062a\u0646\u0638\u06cc\u0645 \u067e\u0627\u0633\u062e\r\nxhr.onload = function() {\r\nif (xhr.status === 200) {\r\nlet data = JSON.parse(xhr.responseText);\r\nconsole.log(data); \/\/ \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u062f\u0631 \u06a9\u0646\u0633\u0648\u0644\r\n}\r\n};\r\n\/\/ \u0627\u0631\u0633\u0627\u0644 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\r\nxhr.send();<\/code><\/pre>\n<\/div>\n<h2 id=\"%d9%82%d8%a7%d9%84%d8%a8%d9%87%d8%a7%db%8c-%d8%af%d8%a7%d8%af%d9%87%d8%a7%db%8c-%d8%af%d8%b1-ajax\">AJAX \u4e2d\u7684\u6570\u636e\u683c\u5f0f<\/h2>\n<h5 id=\"json\">JSON<\/h5>\n<p>JSON \u662f AJAX \u4e2d\u6700\u5e38\u7528\u7684\u6570\u636e\u683c\u5f0f\u3002\u5b83\u8f7b\u91cf\u7ea7\u3001\u6613\u8bfb\uff0c\u5e76\u4e14\u53ef\u4ee5\u8f7b\u677e\u8f6c\u6362\u4e3a JavaScript \u5bf9\u8c61\u3002.<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>{\r\n\"name\": \"Ali\",\r\n\"age\": 25,\r\n\"city\": \"Tehran\"\r\n}<\/code><\/pre>\n<\/div>\n<h5 id=\"xml\">XML<\/h5>\n<p>\u8fc7\u53bb\uff0cXML \u662f AJAX \u7684\u4e3b\u8981\u683c\u5f0f\u4e4b\u4e00\uff0c\u4f46\u7531\u4e8e\u5176\u590d\u6742\u6027\u548c\u7e41\u91cd\u7684\u5de5\u4f5c\u91cf\uff0c\u5982\u4eca\u5176\u4f7f\u7528\u91cf\u5df2\u6709\u6240\u4e0b\u964d\u3002.<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;name&gt;Ali&lt;\/name&gt;\r\n&lt;age&gt;25&lt;\/age&gt;\r\n&lt;city&gt;Tehran&lt;\/city&gt;<\/code><\/pre>\n<\/div>\n<h5 id=\"html\">HTML<\/h5>\n<p>\u6709\u65f6\u670d\u52a1\u5668\u4f1a\u4ee5 HTML \u683c\u5f0f\u53d1\u9001\u6570\u636e\uff0c\u4f8b\u5982\u8868\u683c\u6216\u8868\u5355\u7684\u4e00\u90e8\u5206\u3002.<\/p>\n<h3 id=\"%d8%b1%d9%88%d8%b4%d9%87%d8%a7%db%8c-%d8%a7%d8%b1%d8%b3%d8%a7%d9%84-%d8%af%d8%b1%d8%ae%d9%88%d8%a7%d8%b3%d8%aa\">\u63d0\u4ea4\u8bf7\u6c42\u7684\u65b9\u5f0f<\/h3>\n<h5 id=\"get\">\u5f97\u5230<\/h5>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>xhr.open(\"GET\", \"data.json\", true);\r\nxhr.send();<\/code><\/pre>\n<\/div>\n<h5 id=\"post\">\u90ae\u653f<\/h5>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>xhr.open(\"POST\", \"submit.php\", true);\r\nxhr.setRequestHeader(\"Content-Type\", \"application\/x-www-form-urlencoded\");\r\nxhr.send(\"name=Ali&amp;age=25\");<\/code><\/pre>\n<\/div>\n<h2 id=\"%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-fetch-api\">\u4f7f\u7528 Fetch API<\/h2>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>fetch('data.json')\r\n.then(response =&gt; response.json())\r\n.then(data =&gt; {\r\nconsole.log(data);\r\n})\r\n.catch(error =&gt; {\r\nconsole.error('Error:', error);\r\n});<\/code><\/pre>\n<\/div>\n<h2 id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\">\u7ed3\u679c<\/h2>\n<p>AJAX \u662f Web \u5f00\u53d1\u4e2d\u7684\u4e00\u9879\u5173\u952e\u6280\u672f\uff0c\u5b83\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u521b\u5efa\u901f\u5ea6\u66f4\u5feb\u3001\u66f4\u6d41\u7545\u3001\u4ea4\u4e92\u6027\u66f4\u5f3a\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5c3d\u7ba1 AJAX \u5177\u6709\u8bf8\u591a\u4f18\u52bf\uff0c\u4f46\u4e86\u89e3\u5176\u6311\u6218\u548c\u6700\u4f73\u5b9e\u8df5\u6709\u52a9\u4e8e\u5f00\u53d1\u4eba\u5458\u8bbe\u8ba1\u66f4\u9ad8\u6548\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u6700\u7ec8\uff0cAJAX \u901a\u8fc7\u63d0\u4f9b\u66f4\u4f73\u7684\u7528\u6237\u4f53\u9a8c\u548c\u964d\u4f4e\u670d\u52a1\u5668\u8d1f\u8f7d\uff0c\u5df2\u6210\u4e3a\u73b0\u4ee3 Web \u5f00\u53d1\u7684\u6838\u5fc3\u7ec4\u4ef6\u3002.<\/p>","protected":false},"excerpt":{"rendered":"\u7b80\u4ecb\uff1aAJAX \u4ee3\u8868\u5f02\u6b65 JavaScript \u548c XML\uff0c\u662f\u4e00\u79cd\u7528\u4e8e\u521b\u5efa\u52a8\u6001 Web \u5e94\u7528\u7a0b\u5e8f\u7684\u6280\u672f\u2026\u2026","protected":false},"author":1,"featured_media":16573,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"AJAX \u0686\u06cc\u0633\u062a \u0648 \u0686\u06af\u0648\u0646\u0647 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_focuskeywords":"[]","_yoast_wpseo_primary_category":"193","footnotes":""},"categories":[193,363],"tags":[463,435],"class_list":{"0":"post-16571","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tutorials","8":"category-programming","9":"tag-ajax","10":"tag-programming"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AJAX \u0686\u06cc\u0633\u062a \u0648 \u0686\u06af\u0648\u0646\u0647 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f - \u0628\u0644\u0627\u06af ITPiran<\/title>\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.itpiran.net\/blog\/zh\/tutorials\/what-is-ajax-and-how-it-works\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AJAX \u0686\u06cc\u0633\u062a \u0648 \u0686\u06af\u0648\u0646\u0647 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f - \u0628\u0644\u0627\u06af ITPiran\" \/>\n<meta property=\"og:description\" content=\"\u0645\u0642\u062f\u0645\u0647 AJAX \u0645\u062e\u0641\u0641 \u0639\u0628\u0627\u0631\u062a Asynchronous JavaScript and XML \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 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name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/what-is-ajax-and-how-it-works\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/what-is-ajax-and-how-it-works\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#\\\/schema\\\/person\\\/04ed27b919baca468a2273f8e4318f81\"},\"headline\":\"AJAX \u0686\u06cc\u0633\u062a \u0648 \u0686\u06af\u0648\u0646\u0647 \u06a9\u0627\u0631 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