D3.js 如何将实时数据添加到堆叠条形图

我有一个堆叠的条形图，它从api获取数据。 它在加载时工作正常，并且数据按应有的方式显示

现在，我希望每十分钟向图表添加一次新数据，调用加载时相同的API，图表应异步刷新，并且新数据和轴标签需要在获得新数据时更新

到目前为止我所做的。。

---

如果使用jquery，那么可以使用函数发送AJAX请求。确保在结果的done函数中处理响应，因为success已被弃用

普通AJAX请求示例：

HTML:

摘自。如果您掌握了AJAX请求，那么下一步就是使用编写轮询器。第一个参数应该是发送请求的函数，第二个参数应该是两次执行之间的时间，在本例中为10000毫秒。或者您可以使用现有的轮询器。这是我已经实施的一项：

function Initializable(params) {
    this.initialize = function(key, def, private) {
        if (def !== undefined) {
            (!!private ? params : this)[key] = (params[key] !== undefined) ? params[key] : def;
        }
    };
}

function Poller(params) {
    Initializable.call(this, params);

    var that = this;
    this.initialize("url", window.location.href);
    this.initialize("interval", 5000);
    this.initialize("type", "POST");
    this.initialize("method", "POST");
    this.initialize("data", {});
    this.initialize("strict", true);

    var defaultFunction = function() {};

    this.initialize("done", defaultFunction);
    this.initialize("fail", defaultFunction);
    this.initialize("always", defaultFunction);

    this.isRunning = function() {
        return !!params.intervalID;
    };

    this.run = function() {
        if (this.strict && (this.green === false)) {
            return;
        }
        this.green = false;
        $.ajax({
            url: this.url,
            method: this.method,
            data: this.data
        }).done(function(data, textStatus, jqXHR) {
            that.green = true;
            that.done(data, textStatus, jqXHR);
        }).fail(function(jqXHR, textStatus, errorThrown) {
            that.green = true;
            that.fail(jqXHR, textStatus, errorThrown);
        }).always(function(param1, param2, param3) {
            that.green = true;
            that.always(param1, param2, param3);
        });
    };

    this.start = function() {
        if (!params.intervalID) {
            this.run();
            params.intervalID = setInterval(this.run.bind(this), this.interval);
        }
    };

    this.stop = function() {
        if (!!params.intervalID) {
            clearInterval(params.intervalID);
            params.intervalID = undefined;
        }
    };

}

---

如果使用jquery，那么可以使用函数发送AJAX请求。确保在结果的done函数中处理响应，因为success已被弃用

普通AJAX请求示例：

HTML:

摘自。如果您掌握了AJAX请求，那么下一步就是使用编写轮询器。第一个参数应该是发送请求的函数，第二个参数应该是两次执行之间的时间，在本例中为10000毫秒。或者您可以使用现有的轮询器。这是我已经实施的一项：

function Initializable(params) {
    this.initialize = function(key, def, private) {
        if (def !== undefined) {
            (!!private ? params : this)[key] = (params[key] !== undefined) ? params[key] : def;
        }
    };
}

function Poller(params) {
    Initializable.call(this, params);

    var that = this;
    this.initialize("url", window.location.href);
    this.initialize("interval", 5000);
    this.initialize("type", "POST");
    this.initialize("method", "POST");
    this.initialize("data", {});
    this.initialize("strict", true);

    var defaultFunction = function() {};

    this.initialize("done", defaultFunction);
    this.initialize("fail", defaultFunction);
    this.initialize("always", defaultFunction);

    this.isRunning = function() {
        return !!params.intervalID;
    };

    this.run = function() {
        if (this.strict && (this.green === false)) {
            return;
        }
        this.green = false;
        $.ajax({
            url: this.url,
            method: this.method,
            data: this.data
        }).done(function(data, textStatus, jqXHR) {
            that.green = true;
            that.done(data, textStatus, jqXHR);
        }).fail(function(jqXHR, textStatus, errorThrown) {
            that.green = true;
            that.fail(jqXHR, textStatus, errorThrown);
        }).always(function(param1, param2, param3) {
            that.green = true;
            that.always(param1, param2, param3);
        });
    };

    this.start = function() {
        if (!params.intervalID) {
            this.run();
            params.intervalID = setInterval(this.run.bind(this), this.interval);
        }
    };

    this.stop = function() {
        if (!!params.intervalID) {
            clearInterval(params.intervalID);
            params.intervalID = undefined;
        }
    };

}

---

我可以请下一位选民告诉我他为什么否决我的答案吗？我可以请下一位选民告诉我他为什么否决我的答案吗？

function loadDoc() {
  var xhttp = new XMLHttpRequest();
  xhttp.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
     document.getElementById("demo").innerHTML = this.responseText;
    }
  };
  xhttp.open("GET", "ajax_info.txt", true);
  xhttp.send();
} 

function Initializable(params) {
    this.initialize = function(key, def, private) {
        if (def !== undefined) {
            (!!private ? params : this)[key] = (params[key] !== undefined) ? params[key] : def;
        }
    };
}

function Poller(params) {
    Initializable.call(this, params);

    var that = this;
    this.initialize("url", window.location.href);
    this.initialize("interval", 5000);
    this.initialize("type", "POST");
    this.initialize("method", "POST");
    this.initialize("data", {});
    this.initialize("strict", true);

    var defaultFunction = function() {};

    this.initialize("done", defaultFunction);
    this.initialize("fail", defaultFunction);
    this.initialize("always", defaultFunction);

    this.isRunning = function() {
        return !!params.intervalID;
    };

    this.run = function() {
        if (this.strict && (this.green === false)) {
            return;
        }
        this.green = false;
        $.ajax({
            url: this.url,
            method: this.method,
            data: this.data
        }).done(function(data, textStatus, jqXHR) {
            that.green = true;
            that.done(data, textStatus, jqXHR);
        }).fail(function(jqXHR, textStatus, errorThrown) {
            that.green = true;
            that.fail(jqXHR, textStatus, errorThrown);
        }).always(function(param1, param2, param3) {
            that.green = true;
            that.always(param1, param2, param3);
        });
    };

    this.start = function() {
        if (!params.intervalID) {
            this.run();
            params.intervalID = setInterval(this.run.bind(this), this.interval);
        }
    };

    this.stop = function() {
        if (!!params.intervalID) {
            clearInterval(params.intervalID);
            params.intervalID = undefined;
        }
    };

}