前端验证的Ajax框架——myAjax.js
发布时间:2020-12-16 02:09:33 所属栏目:百科 来源:网络整理
导读:自己分装的前端Ajax框架,请各位批评指正~~ /** * myAjax.js file is used by created Ajax in Web page. 这个文件是封装好的Ajax包,可以直接调用 * @Author: Alvin Xing 邢嵩林 * @Param: servlet: It is servlet that deal with this Ajax. 需要处理的ser
自己分装的前端Ajax框架,请各位批评指正~~
* myAjax.js file is used by created Ajax in Web page. 这个文件是封装好的Ajax包,可以直接调用 * @Author: Alvin Xing 邢嵩林 * @Param: servlet: It is servlet that deal with this Ajax. 需要处理的servlet(或者jsp或其他html) * dispatchPage: It is the url when validate successfully. 验证成功后跳转到这个url * changeDiv: It is the div ID that need changed by Ajax in JSP. 结果需要在这个Div里显示 * waiting: It is a waiting things,which could let user feel good. It could be a img Tag. 等待加载的信息,可以穿图片,e.g:'<img src="a.jpg">' * params: It is the parameters you need send to servlet. 提交给servlet的参数 * errStr: It is the errro information when validate failed. 验证失败时需要显示的错误信息,显示在id等于changDiv的元素里. * Tiptop: All parameters are String. you could use '',if you want to use it in "". * 注 意: 所有参数均为字符串,需加''或者"". 如果在""中使用,可以选择''. * 例 子: onclick="ajaxFunction('servlet','login.jsp','Div001','正在加载','a=10','该用户已注册')"; * //以上表达式表示: 将参数a=10发送给servlet,若成功,则返回login.jsp页面,若失败,则当前页面不提交,只在id="Div001"的标签中显示错误信息"该用户已注册"字样. */ function ajaxFunction(servlet,dispatchPage,changeDiv,waiting,params,errStr){ //Create the Ajax var xmlhttp; if (window.XMLHttpRequest) { // code for IE7+,Firefox,Chrome,Opera,Safari xmlhttp = new XMLHttpRequest(); } else { // code for IE6,IE5 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } //Define the method to deal with the result. xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { var result = xmlhttp.responseText; var temp = eval(result); if(temp == true){ window.location.href=dispatchPage; return false; } else { document.getElementById(changeDiv).innerHTML = errStr; return false; } } else { document.getElementById(changeDiv).innerHTML = waiting; //<img src="wait.jpg"> } } //Open and Send the Ajax // xmlhttp.open("GET","Ajax.html?way=get",true); //Get方式的Ajax请求 // xmlhttp.send(null); xmlhttp.open("Post",servlet,false); //Post方式的Ajax请求 xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded"); xmlhttp.send(params); } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |