请写出一段JavaScript代码，内容是组装表单参数并用POST方式提交请求。

admin

请求路径：addemp.do，  表单参数：empname=zhangsan

ttymhx

$.ajax({
type:"post",
url:"addemp.do?formAction=test",
data:{"empname":zhangsan},
tataType:"Json",
success:function(data){
}
})

740317431

$.ajax({
type:"post",
url:"addemp.do?formAction=test",
data:{"empname":zhangsan},
tataType:"Json",
success:function(data){
}
})

王之神判

$.ajax({
type:"post",
url:"${pageContext.request.contextPath}/addemp.do",
data:{empname:zhangsan},

success:function(data){
                    window.clearInterval(timer);
                    console.log("over..");
},
error:function(e){
                    alert("错误！！");
                    window.clearInterval(timer);
 }

})

或者

 var form = new FormData();
          form.append("empname","zhangsan");  var req = new XMLHttpRequest();
          req.open("post", "${pageContext.request.contextPath}/addemp.do", false);
          req.send(form);