92 lines
3.7 KiB
JavaScript
92 lines
3.7 KiB
JavaScript
/*******************************************************************************
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*
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* url : 'ajax.jsp' 请求地址
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* timeout : 30*1000 请求超时时间(默认30s)ms(毫秒)为单位
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* method : post/get 发送方式
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* contentType : 'application/x-www-form-urlencoded;charset=UTF-8'
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* async : true/false 是否异步
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* success(response) : ajax成功返回的回调函数reponse.responseText
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* failure(response) : ajax请求失败的回调函数reponse.responseText
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* params : 参数{method:'remode'}，JS对象
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*
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******************************************************************************/
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var ajaxRequest = function(config) {
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var xmlHttpRequest = null;
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try {
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xmlHttpRequest = new XMLHttpRequest();
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} catch(e) {
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try {
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xmlHttpRequest = new ActiveXObject("Msxml2.XMLHTTP");
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} catch(e) {
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xmlHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");
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}
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}
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if (xmlHttpRequest == null) {
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alert("您的浏览器不支持AJAX！");
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return;
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}
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var method = (config.method || 'POST').toUpperCase();
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var url = config.url;
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var contentType = config.contentType || 'application/x-www-form-urlencoded;charset=UTF-8';
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var params = config.params || {};
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var sendParams = ('&decorate=none&tracywindyRandom=' + Math.random());
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for ( var param in params) {
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sendParams += ('&' + param + '=' + escape(encodeURIComponent(params[param])));
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}
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if (method == 'GET') {
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if (url.indexOf('?') == -1) {
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url += '?';
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}
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url += sendParams;
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}
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var timeout = config.timeout || 30 * 1000;
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this.async = (config.async == false) ? false : true;
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xmlHttpRequest.open(method, url, this.async);
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xmlHttpRequest.setRequestHeader("Content-Type", contentType);
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xmlHttpRequest.setRequestHeader("X-Requested-With", "XMLHttpRequest");
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var clearTO = setTimeout(function() {
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xmlHttpRequest.abort(); //终止XMLHttpRequest对象
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config.failure(xmlHttpRequest);
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}, timeout);
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xmlHttpRequest.onreadystatechange = function() {
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if (xmlHttpRequest.readyState == 4) {
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if (xmlHttpRequest.status == 200) {
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clearTimeout(clearTO);
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var judgeText = xmlHttpRequest.responseText;
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if (/^\s*<\s*html/gim.test(judgeText)) {
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//项目根路径
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var rootPath = "";
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if (window.getRootPath) {
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rootPath = getRootPath();
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} else {
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var strFullPath = window.document.location.href;
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var strPath = window.document.location.pathname;
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var pos = strFullPath.indexOf(strPath);
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var prePath = strFullPath.substring(0, pos);
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var postPath = strPath.substring(0, strPath.substr(1).indexOf('/') + 1);
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rootPath = (prePath + postPath);
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}
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window.top.location.href = rootPath + "/login.jsp";
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return;
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} else if (0 == judgeText.indexOf("X-Requested-With-Error")) {
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alert(judgeText.substring("X-Requested-With-Error".length, judgeText.length));
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if (window.tracywindyObject) {
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for (var p in window.tracywindyObject) {
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var currentObj = tracywindyObject[p];
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if ("loadmask" == currentObj['objectType']) {
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currentObj.hide();
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}
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}
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}
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} else {
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config.success(xmlHttpRequest);
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}
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} else if (xmlHttpRequest.status == 404) {
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if(config.failure){
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config.failure(xmlHttpRequest);
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}
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}
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}
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};
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xmlHttpRequest.send(sendParams);
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}; |