{"id":152659,"date":"2024-11-02T00:57:23","date_gmt":"2024-11-01T16:57:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152659\/"},"modified":"2024-11-02T00:57:24","modified_gmt":"2024-11-01T16:57:24","slug":"%e6%9f%a5%e8%a9%a2%e7%b5%90%e6%9e%9c%e5%a6%82%e4%bd%95%e5%af%a6%e6%99%82%e5%b1%95%e7%a4%ba%e9%a0%81%e9%9d%a2%ef%bc%9f%e3%80%8c%e5%af%a6%e7%8f%be%e5%8b%95%e6%85%8b%e9%a0%81%e9%9d%a2%e5%b1%95%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152659\/","title":{"rendered":"\u67e5\u8a62\u7d50\u679c\u5982\u4f55\u5be6\u6642\u5c55\u793a\u9801\u9762\uff1f\u300c\u5be6\u73fe\u52d5\u614b\u9801\u9762\u5c55\u793a\uff1aAjax \u67e5\u8a62\u6578\u64da\u5eab\u8655\u7406\u300d (Ajax \u8acb\u6c42\u5f97\u5230\u7684\u6578\u64da\u5eab)"},"content":{"rendered":"

\u67e5\u8a62\u7d50\u679c\u5982\u4f55\u5be6\u6642\u5c55\u793a\u9801\u9762\uff1f\u300c\u5be6\u73fe\u52d5\u614b\u9801\u9762\u5c55\u793a\uff1aAjax \u67e5\u8a62\u6578\u64da\u5eab\u8655\u7406\u300d<\/h1>\n

\u5728\u73fe\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u5be6\u6642\u6578\u64da\u5c55\u793a\u5df2\u6210\u70ba\u4e00\u500b\u91cd\u8981\u7684\u9700\u6c42\u3002\u7528\u6236\u5e0c\u671b\u5728\u4e0d\u91cd\u65b0\u52a0\u8f09\u6574\u500b\u9801\u9762\u7684\u60c5\u6cc1\u4e0b\uff0c\u7372\u53d6\u6700\u65b0\u7684\u6578\u64da\u3002\u9019\u6642\uff0cAjax\uff08Asynchronous JavaScript and XML\uff09\u6280\u8853\u4fbf\u6210\u70ba\u4e86\u5be6\u73fe\u52d5\u614b\u9801\u9762\u5c55\u793a\u7684\u95dc\u9375\u5de5\u5177\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Ajax\u67e5\u8a62\u6578\u64da\u5eab\u4e26\u5be6\u6642\u5c55\u793a\u7d50\u679c\u3002<\/p>\n

\u4ec0\u9ebc\u662fAjax\uff1f<\/h2>\n

Ajax\u662f\u4e00\u7a2e\u7528\u65bc\u5275\u5efa\u5feb\u901f\u4e14\u4e92\u52d5\u6027\u5f37\u7684\u7db2\u9801\u61c9\u7528\u7684\u6280\u8853\u3002\u5b83\u5141\u8a31\u7db2\u9801\u5728\u4e0d\u91cd\u65b0\u52a0\u8f09\u6574\u500b\u9801\u9762\u7684\u60c5\u6cc1\u4e0b\uff0c\u8207\u4f3a\u670d\u5668\u9032\u884c\u7570\u6b65\u901a\u4fe1\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u53ef\u4ee5\u5728\u8207\u7db2\u9801\u4e92\u52d5\u7684\u540c\u6642\uff0c\u7372\u53d6\u548c\u5c55\u793a\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

Ajax\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n

Ajax\u7684\u5de5\u4f5c\u6d41\u7a0b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n

    \n
  1. \u7528\u6236\u5728\u7db2\u9801\u4e0a\u89f8\u767c\u4e00\u500b\u4e8b\u4ef6\uff08\u4f8b\u5982\u9ede\u64ca\u6309\u9215\uff09\u3002<\/li>\n
  2. JavaScript\u4ee3\u78bc\u5275\u5efa\u4e00\u500bXMLHttpRequest\u5c0d\u8c61\uff0c\u4e26\u8a2d\u7f6e\u8acb\u6c42\u7684URL\u548c\u65b9\u6cd5\uff08GET\u6216POST\uff09\u3002<\/li>\n
  3. \u767c\u9001\u8acb\u6c42\u5230\u4f3a\u670d\u5668\u3002<\/li>\n
  4. \u4f3a\u670d\u5668\u8655\u7406\u8acb\u6c42\uff0c\u4e26\u8fd4\u56de\u6578\u64da\uff08\u901a\u5e38\u662fJSON\u6216XML\u683c\u5f0f\uff09\u3002<\/li>\n
  5. JavaScript\u63a5\u6536\u6578\u64da\uff0c\u4e26\u66f4\u65b0\u7db2\u9801\u7684\u90e8\u5206\u5167\u5bb9\u3002<\/li>\n<\/ol>\n

    \u5be6\u73feAjax\u67e5\u8a62\u6578\u64da\u5eab\u7684\u6b65\u9a5f<\/h2>\n

    \u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Ajax\u67e5\u8a62\u6578\u64da\u5eab\u4e26\u5be6\u6642\u5c55\u793a\u7d50\u679c\u3002<\/p>\n

    1. \u5efa\u7acbHTML\u7d50\u69cb<\/h3>\n
    <!DOCTYPE html>\n<html lang=\"zh-Hant\">\n<head>\n    <meta charset=\"UTF-8\">\n    <title>Ajax \u67e5\u8a62\u793a\u4f8b<\/title>\n    <script src=\"https:\/\/code.jquery.com\/jquery-3.6.0.min.js\"><\/script>\n<\/head>\n<body>\n    <h1>\u67e5\u8a62\u6578\u64da<\/h1>\n    <input type=\"text\" id=\"query\" placeholder=\"\u8f38\u5165\u67e5\u8a62\u5167\u5bb9\">\n    <button id=\"searchBtn\">\u67e5\u8a62<\/button>\n    <div id=\"result\"><\/div>\n<\/body>\n<\/html><\/code><\/pre>\n
    2. \u7de8\u5bebJavaScript\u4ee3\u78bc<\/h3>\n
    $(document).ready(function() {\n    $(\"#searchBtn\").click(function() {\n        var query = $(\"#query\").val();\n        $.ajax({\n            url: \"search.php\",\n            type: \"GET\",\n            data: { q: query },\n            success: function(data) {\n                $(\"#result\").html(data);\n            },\n            error: function() {\n                $(\"#result\").html(\"\u67e5\u8a62\u5931\u6557\uff0c\u8acb\u7a0d\u5f8c\u518d\u8a66\u3002\");\n            }\n        });\n    });\n});<\/code><\/pre>\n
    3. \u5275\u5efa\u4f3a\u670d\u5668\u7aef\u8173\u672c\uff08search.php\uff09<\/h3>\n
    <?php\n$servername = \"localhost\";\n$username = \"username\";\n$password = \"password\";\n$dbname = \"database\";\n\n\/\/ \u5275\u5efa\u9023\u63a5\n$conn = new mysqli($servername, $username, $password, $dbname);\n\n\/\/ \u6aa2\u67e5\u9023\u63a5\nif ($conn->connect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $conn->connect_error);\n}\n\n$query = $_GET['q'];\n$sql = \"SELECT * FROM table WHERE column LIKE '%$query%'\";\n$result = $conn->query($sql);\n\nif ($result->num_rows > 0) {\n    while($row = $result->fetch_assoc()) {\n        echo \"<p>\" . $row[\"column\"] . \"<\/p>\";\n    }\n} else {\n    echo \"\u7121\u7d50\u679c\";\n}\n$conn->close();\n?><\/code><\/pre>\n
    \u7e3d\u7d50<\/h2>\n
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    \u5be6\u73fe\u52d5\u614b\u9801\u9762\u5c55\u793a\uff0c\u900f\u904e Ajax \u67e5\u8a62\u6578\u64da\u5eab\uff0c\u5be6\u6642\u66f4\u65b0\u67e5\u8a62\u7d50\u679c\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u8207\u4e92\u52d5\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-152659","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=152659"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152659\/revisions"}],"predecessor-version":[{"id":152660,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152659\/revisions\/152660"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}