js 跨域 post 还有get

http://www.tuicool.com/articles/7ve6ja

post跨域

var post = function (URL, PARAMS) {
    var temp = document.createElement("form");
    temp.action = URL;
    temp.method = "post";
    temp.style.display = "none";
    for (var x in PARAMS) {
       var opt = document.createElement("textarea");
       opt.name = x;
       opt.value = PARAMS[x];
       temp.appendChild(opt);
    }
    document.body.appendChild(temp);
    temp.submit();
    history.go(-1)
};

var apiUrl = 'http://URL地址' + token + '&callback=?';

var content = $("#Content").val;
var contact = $("#Contact").val();
if (content != '' && contact != '') {
   var params = {"content": content, "contact": contact};
     // 直接调用post方法即可
     post(apiUrl, params);
     layer.msg('反馈成功');
}

get方式跨域

var fetchUrl = '带http的url地址' + token + '&callback=?';
$.getJSON(fetchUrl + '', function (res) {
    console.log(res);
});