ajax的post提交问题

剃光了可冷了

var xmlHttpRequest; function check(){ xmlHttpRequest=new XMLHttpRequest(); xmlHttpRequest.onreadystatechange=checkCallback; var name=document.getElementById("name").value; //alert(name); var url="user.do"; xmlHttpRequest.open("POST", url, true); xmlHttpRequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); xmlHttpRequest.send("name"+name); }感觉设置了头信息以后照样不能发送到后台