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  • 原生js 封装好了的ajax 带钩子版本 可封装成对象

    <!DOCTYPE html>
    <html>
    	<head>
    		<meta charset="utf-8">
    		<title></title>
    	</head>
    	<body>
    	</body>
    	<script type="text/javascript">
    		//ajax_all_Filed
    		// https://blog.csdn.net/qq_33285292/article/details/76147450
    		
    		// 封装ajax函数
    	// @param {string}opt.type http连接的方式,包括POST和GET两种方式
    	// @param {string}opt.url 发送请求的url
    	// @param {boolean}opt.async 是否为异步请求,true为异步的,false为同步的
    	// @param {object}opt.data 发送的参数,格式为对象类型
    	// @param {function}opt.success ajax发送并接收成功调用的回调函数
    	function Ajax() {//构造函数
    		//this.opt = opt;
    		this.ajax = function(opt){
    			try{
    				//var opt = this.opt;
    				opt = opt || {};
    				opt.method = opt.method.toUpperCase() || 'POST';
    				opt.url = opt.url || '';
    				opt.async = opt.async || true;
    				opt.data = opt.data || null;
    				opt.success = opt.success || function () {};
    				opt.error = opt.error || function () {};
    				
    				var xmlHttp = null;
    				if (XMLHttpRequest) {
    					xmlHttp = new XMLHttpRequest();
    				}
    				else {
    					xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');
    				}var params = [];
    				for (var key in opt.data){
    					params.push(key + '=' + opt.data[key]);
    				}
    				var postData = params.join('&');
    				if (opt.method.toUpperCase() === 'POST') {
    					xmlHttp.open(opt.method, opt.url, opt.async);
    					xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded;charset=utf-8');
    					xmlHttp.setRequestHeader('Accept', 'application/json, text/javascript, */*');
    					xmlHttp.send(postData);
    				}
    				else if (opt.method.toUpperCase() === 'GET') {
    					xmlHttp.open(opt.method, opt.url + '?' + postData, opt.async);
    					xmlHttp.send(null);
    				} 
    				xmlHttp.onreadystatechange = function () {
    					if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
    						var res = JSON.parse(xmlHttp.responseText);
    						if(res.code !=200){
    							//全局处理异常
    						}
    						opt.success(res);
    					}else if(xmlHttp.readyState == 4 && xmlHttp.status == 0){
    						opt.error("Your url is error");//错误
    					}else if(xmlHttp.readyState == 4 && xmlHttp.status != 200){
    						opt.error(xmlHttp.responseText);//错误
    					}
    					
    					//console.log(xmlHttp.readyState,xmlHttp.status);
    					//console.log(xmlHttp.readyState,xmlHttp.status);
    				};
    			
    			}catch(e){
    				opt.error(e);//错误
    			}
    		}
    	}
    
    	// 使用
    	// error:function(ev) {
    	var http = new Ajax();//实例化一个对象
    	http.ajax({
    		method: 'get',
    		url: 'http://106.15.196.194:3333/Getlist',
    		async:true,
    		data: {
    			name1: 'value1',
    			name2: 'value2'
    		},
    		success: function (response) {
    		   //console.log(response);
    		   
    
    		},
    		error:function(e){
    			console.log(e);
    		}
    	});
    		
    		
    	</script>
    </html>
    

    <!DOCTYPE html><html><head><meta charset="utf-8"><title></title></head><body></body><script type="text/javascript">//ajax_all_Filed// https://blog.csdn.net/qq_33285292/article/details/76147450// 封装ajax函数// @param {string}opt.type http连接的方式,包括POST和GET两种方式// @param {string}opt.url 发送请求的url// @param {boolean}opt.async 是否为异步请求,true为异步的,false为同步的// @param {object}opt.data 发送的参数,格式为对象类型// @param {function}opt.success ajax发送并接收成功调用的回调函数function Ajax() {//构造函数//this.opt = opt;this.ajax = function(opt){try{//var opt = this.opt;opt = opt || {};opt.method = opt.method.toUpperCase() || 'POST';opt.url = opt.url || '';opt.async = opt.async || true;opt.data = opt.data || null;opt.success = opt.success || function () {};opt.error = opt.error || function () {};var xmlHttp = null;if (XMLHttpRequest) {xmlHttp = new XMLHttpRequest();}else {xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');}var params = [];for (var key in opt.data){params.push(key + '=' + opt.data[key]);}var postData = params.join('&');if (opt.method.toUpperCase() === 'POST') {xmlHttp.open(opt.method, opt.url, opt.async);xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded;charset=utf-8');xmlHttp.setRequestHeader('Accept', 'application/json, text/javascript, */*');xmlHttp.send(postData);}else if (opt.method.toUpperCase() === 'GET') {xmlHttp.open(opt.method, opt.url + '?' + postData, opt.async);xmlHttp.send(null);} xmlHttp.onreadystatechange = function () {if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {var res = JSON.parse(xmlHttp.responseText);if(res.code !=200){//全局处理异常}opt.success(res);}else if(xmlHttp.readyState == 4 && xmlHttp.status == 0){opt.error("Your url is error");//错误}else if(xmlHttp.readyState == 4 && xmlHttp.status != 200){opt.error(xmlHttp.responseText);//错误}//console.log(xmlHttp.readyState,xmlHttp.status);//console.log(xmlHttp.readyState,xmlHttp.status);};}catch(e){opt.error(e);//错误}}}
    // 使用// error:function(ev) {var http = new Ajax();//实例化一个对象http.ajax({method: 'get',url: 'http://106.15.196.194:3333/Getlist',async:true,data: {name1: 'value1',name2: 'value2'},success: function (response) {   //console.log(response);   
    },error:function(e){console.log(e);}});</script></html>

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  • 原文地址:https://www.cnblogs.com/shaozhu520/p/10917863.html
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