ajax跨域

var url = "http://172.16.20.193:8080/api/APS/Login";

$.ajax({
url: url,
type: 'post',
dataType: "json",
crossDomain: true,
data: {
"AppInfo": {
"appVersion": "1.0",
"challenge": "false",
"client": "Android",
"sysVersion": "1.0",
"timeStamp": "1"
},
"Body": {
"UserName": "7000003",
"PassWord": "123456"
}
},
success: function (info) {
$("#content").html(JSON.stringify(info));
}
});