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页面脚本: 复制代码 代码如下: function ajaxSave(URLS) { //定义一个变量用于存放XMLHttpRequest对象 var xmlhttp; //定义一个变量用于存放 从服务器返回的响应结果 var responseContext = ""; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp = new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { responseContext = xmlhttp.responseText; alert(responseContext); } } xmlhttp.open("POST", URLS, true); xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); xmlhttp.send(); } 后台方法: 复制代码 代码如下: Boolean boolean1; String reponseText = ""; if(boolean1){ reponseText="保存成功!"; } else{ reponseText="保存失败!"; } HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/plain"); response.setCharacterEncoding("UTF-8"); PrintWriter out = response.getWriter(); out.println(reponseText); out.flush(); out.close(); return null; |
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