怎么做淘宝链接网站,长沙的科技公司,上海公司排名100强,温岭企业网站建设公司之前一直使用jQuery的ajax方法#xff0c;导致自己对浏览器原生的XMLHttpRequest对象不是很熟悉#xff0c;于是决定自己写下#xff0c;以下是个人写的deom#xff0c;发表一下#xff0c;聊表纪念。 Ajax 和 jsonp 的javascript 实现#xff1a; /*!
* ajax.js
* 导致自己对浏览器原生的XMLHttpRequest对象不是很熟悉于是决定自己写下以下是个人写的deom发表一下聊表纪念。 Ajax 和 jsonp 的javascript 实现 /*!
* ajax.js
* © auth zernmal
* description XMLHttpRequest and Jsonp practice
*/function ajax(url,options ){var options options || {} ,method options.method || GET,async (typeof options.async ! undefined) ? options.async : true ,user (typeof options.user ! undefined) ? options.user : ,pswd (typeof options.pswd ! undefined) ? options.pswd : ,reciveType options.reciveType || string ,data options.data || null ,header options.header || [],callback options.callback || function(){},xhr XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject(Microsoft.XMLHTTP);if(methodGET data){var dataStr [];url (url.indexOf(?)-1) ? url ? : url ; for(var i in data){dataStr.push( i data[i]) ;}url dataStr.join();data null;}else if(data){var form new FormData(); for(var i in data){form.append( i , data[i]); }data form;}xhr.onreadystatechange function() {if (xhr.readyState 4) {// 4 loadedif (xhr.status 200) {// 200 OKvar responseData null ;if(reciveTypestring){responseData xhr.responseText;}else if(reciveType json){responseData xhr.responseText;if( false JSON JSON.parse) {responseData JSON.parse(responseData);}else{responseData eval((responseData));}}options.callback options.callback(responseData);} else {alert(Problem retrieving XML data);}}};xhr.open(method , url , async , user ,pswd); for(var i header.length -1 ; i 0 ; i--){xhr.setRequestHeader(header[i].type, header[i].content); }xhr.send(data);
}function jsonp(url , options){var options options || {} ,script document.createElement(script) ,callback options.callback || function(result){} ,callbackName myjsonpcall (new Date()).getTime(),data options.data || {} ,dataStr [];for(var i in data){dataStr.push( i data[i]) ;}if(url.indexOf(?)-1){url ? dataStr.join() callbackcallbackName;}else{url dataStr.join() callbackcallbackName;}script.setAttribute(src, url); window[callbackName] callback ;// 把script标签加入head此时调用开始document.getElementsByTagName(head)[0].appendChild(script);
} PHP服务端响应请求 ?php$func $_GET[func];if(function_exists($func)){$func();}else{funcNotExist();}function funcNotExist(){echo function is not exist ! ;}function returnJson(){$lastName $_GET[lastName];$firstName $_GET[firstName];echo json_encode(array(firstName$firstName,lastName$lastName));}function returnString(){$lastName $_GET[lastName];$firstName $_GET[firstName];echo the string you send is .$lastName. .$firstName;}function postReturn(){$lastName $_POST[lastName];$firstName $_POST[firstName];echo the string you post is .$lastName. .$firstName;}function jsonP(){header(content-type: application/json; charsetutf-8);$lastName $_GET[lastName];$firstName $_GET[firstName];$callbackFunc isset($_GET[callback])? htmlspecialchars($_GET[callback]):callback;$json json_encode(array(firstName$firstName,lastName$lastName));echo $callbackFunc($json);} 页面内调用方法 !DOCTYPE html
html
headmeta http-equivContent-Type contenttext/html; charsetutf-8 /titleAjax与Jsonp实践/titlescript typetext/javascript srcjs/ajax.js/script
/head
body
scriptjsonp(/ajax.php?funcjsonP,{callback : function(result){console.log(result);},data : {lastName : zernmal , firstName : chen}
});ajax(/ajax.php?funcreturnJson,{method : GET,callback : function(result){console.log(result);},data : {lastName : zernmal , firstName : chen} ,reciveType : json
});
/script
/body
/html 以上只是简单实验如有问题欢迎提出。转载于:https://www.cnblogs.com/zernmal/p/3751066.html
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