使用js+Ajax请求API接口数据-带请求头方式

<script type="text/javascript">
        function zLoginCheck() {
            var Account = ‘admin;
            var Password = ‘DC483E80A7A0BD9EF71D8CF973673924‘;

            var str = {
                Account: Account,
                Password: Password
            }
            $.ajax({
                type: "POST",
                url: ‘/Handle/zLogin.ashx‘,//被请求的API接口地址
                dataType: ‘json‘,
                data: JSON.stringify(str),//请求Json串
                beforeSend: function (request) {

                    //请求头
                    request.setRequestHeader("Method", "Login");
                    request.setRequestHeader("timespan", "1487586970772");
                    request.setRequestHeader("Nonce", "726757");
                    request.setRequestHeader("Token", "615d1c0ab53315a2");
                    request.setRequestHeader("Account", "");
                    request.setRequestHeader("Source", "2");
                    request.setRequestHeader("Version", "139");
                    request.setRequestHeader("Sign", "5329E35A3F60B7DFA147D20EF377888C");
                    request.setRequestHeader("Host", "xxxx.xxxx.xxx");
                    request.setRequestHeader("Content - Length", "76");
                },
                success: function (data) {
                    if (data.Code == "0000") {
                        alert(JSON.stringify(data.Data));
                        alert("Token:" + data.Data.Token);
                    } else {
                        alert(‘登录失败:‘ + data.Message);
                    }
                },
                complete: function (XMLHttpRequest, textStatus) {
                    this; // 调用本次AJAX请求时传递的options参数
                }
            });
        }
    </script>