AJAX請求傳JSON數據

$.ajax({
		url:templateRoot+"user//getLogin",
		contentType: "application/json",
		type:"post",
		data:JSON.stringify({"name":name,"pwd":pwd}),
		dataType:"json",
		success:function(data){
			
		  }
	});
必須加上contentType: "application/json"這句。