jQuery+Ajax+Struts1例子

function validateLoginId(){var sValue = true;$.getJSON("<%=request.getContextPath()%>/RegisterUserAction.do?cmd=validateLoginId", {login_id:$("#login_id").val()}, function(data){if(data == '1') {//alert("登录账号重复！");writeValidateInfo("登录账号已被使用，请重新输入！",document.getElementById("login_id"));sValue = false;}else{writeValidateInfo("",document.getElementById("login_id"));sValue = true;}});return sValue;}