{"id":124,"date":"2021-01-20T20:32:07","date_gmt":"2021-01-20T12:32:07","guid":{"rendered":"http:\/\/gjweb.top\/?p=124"},"modified":"2021-01-20T20:32:08","modified_gmt":"2021-01-20T12:32:08","slug":"ajax%e5%88%9b%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/gjweb.top\/?p=124","title":{"rendered":"AJAX\u521b\u5efa"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u83b7\u53d6 ajax \u5bf9\u8c61<\/h2>\n\n\n\n<p>\u6807\u51c6\u521b\u5efa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var xhr = new XMLHttpRequest()<\/code><\/pre>\n\n\n\n<p>ie8 \u4ee5\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var xhr = new ActriveXObject(\"Microsoft.XMLHttp\")<\/code><\/pre>\n\n\n\n<p>\u517c\u5bb9\u5199\u6cd5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if(window.XMLHttpRequest){\r\n\tvar xhr = new XMLHttpRequest()\r\n}else{\r\n\tvar xhr = new ActriveXObject(\"Microsoft.XMLHttp\");\r\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">xhr\u4e2d\u7684\u5e38\u7528\u5c5e\u6027<\/h2>\n\n\n\n<p>open()<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>open(method,url,isAsyn)\r\n\/*\r\n\tmethod \/\/ \u8bf7\u6c42\u65b9\u5f0f\r\n\turl \/\/\u63a5\u53e3\u5730\u5740\r\n\tisAsyn \/\/\u662f\u5426\u5f02\u6b65 (true\/false)\r\n*\/<\/code><\/pre>\n\n\n\n<p>readyState<\/p>\n\n\n\n<p>\u8bf7\u6c42\u72b6\u6001<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>\u72b6\u6001\u503c<\/strong><\/td><td><strong>\u89e3\u91ca<\/strong><\/td><\/tr><tr><td>0<\/td><td>\u8bf7\u6c42\u5c1a\u672a\u521d\u59cb\u5316<\/td><\/tr><tr><td>1<\/td><td>\u6b63\u5728\u60f3\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42<\/td><\/tr><tr><td>2<\/td><td>\u8bf7\u6c42\u5b8c\u6210<\/td><\/tr><tr><td>3<\/td><td>\u6b63\u5728\u63a5\u53d7\u54cd\u5e94<\/td><\/tr><tr><td>4<\/td><td>\u54cd\u5e94\u5b8c\u6210<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>status : \u72b6\u6001\u7801<\/p>\n\n\n\n<p>onreadystatechange : \u4e8b\u4ef6<\/p>\n\n\n\n<p> \u5728readyState\u5c5e\u6027\u53d8\u5316\u662f\u81ea\u52a8\u89e6\u53d1<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>xhr.onreadystatechange = function(){\r\n\tif(xhr.readyState ==4 &amp;&amp; xhr.status ==200){\r\n\t\tvar data = xhr.response.Text;\r\n\t}\r\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>send()<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u53d1\u9001\u8bf7\u6c42<\/li><li>\u8bed\u6cd5<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>send(body)\r\n\/*\r\n\tbody : \u8bf7\u6c42\u4e3b\u4f53\r\n\t\u6ce8\u610f : \u5982\u679c\u8bf7\u6c42\u65b9\u5f0f\u4e3aGET body\u66ff\u6362\u6210 null\r\n*\/<\/code><\/pre>\n\n\n\n<p>post\u65b9\u5f0f(\u4e13\u7528)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>xhr.setRequestHeader(\"Content-Type\",\"applicatlon\/x-www-form-urlencoded\")<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u83b7\u53d6 ajax \u5bf9\u8c61 \u6807\u51c6\u521b\u5efa ie8 \u4ee5\u4e0b \u517c\u5bb9\u5199\u6cd5 xhr\u4e2d\u7684\u5e38\u7528\u5c5e\u6027 open() readyState [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-124","post","type-post","status-publish","format-standard","hentry","category-ajax"],"_links":{"self":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=124"}],"version-history":[{"count":0,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/124\/revisions"}],"wp:attachment":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}