ajax如何传递json格式的参数

Answer 1

Ajax中传递Json格式的参数
$.ajax({
type: "post",
url: baseUrl+"sys/login",
dataType: "json",
contentType: "application/json;charset=utf-8",
data: JSON.stringify({userName: loginapp.userName,userPassword: loginapp.userPassword}),

或者拼接字符串的形式：
data: "{'userName': '"+loginapp.userName+"','userPassword': '"+loginapp.userPassword+"'}",