用3.3.6测试，第二次点击是ok的

        $('[data-toggle="popover"]').popover()
            .click(function () {
            $(this).popover('toggle');
        });;

        $(document).on('click', function (e) {
            $('[data-toggle="popover"]').each(function () {
                //the 'is' for buttons that trigger popups
                //the 'has' for icons within a button that triggers a popup
                if (!$(this).is(e.target) && $(this).has(e.target).length === 0 && $('.popover').has(e.target).length === 0) {
                    $(this).popover('hide');
                }
            });
        });

$("body").find('.popover').removeClass('in');

这基本上不是很复杂，但有一些检查要做，以避免故障。

演示(jsfiddle)

var $poped = $('someselector');

// Trigger for the popover
$poped.each(function() {
    var $this = $(this);
    $this.on('hover',function() {
            var popover = $this.data('popover');
            var shown = popover && popover.tip().is(':visible');
            if(shown) return;        // Avoids flashing
            $this.popover('show');
    });
});

// Trigger for the hiding
 $('html').on('click.popover.data-api',function() {
    $poped.popover('hide');
});

演示:http://jsfiddle.net/nessajtr/yxpM5/1/

var clickOver = clickOver || {};
clickOver.uniqueId = $.now();

clickOver.ClickOver = function (selector, options) {
    var self = this;

    //default values
    var isVisible, clickedAway = false;

    var callbackMethod = options.content;
var uniqueDiv = document.createElement("div");
var divId = uniqueDiv.id = ++clickOver.uniqueId;
uniqueDiv.innerHTML = options.loadingContent();

options.trigger = 'manual';
options.animation = false;
options.content = uniqueDiv;

self.onClose = function () {
    $("#" + divId).html(options.loadingContent());
    $(selector).popover('hide')
    isVisible = clickedAway = false;
};
self.onCallback = function (result) {
    $("#" + divId).html(result);
};

$(selector).popover(options);

//events
$(selector).bind("click", function (e) {
    $(selector).filter(function (f) {
        return $(selector)[f] != e.target;
    }).popover('hide');

    $(selector).popover("show");
    callbackMethod(self.onCallback);

    isVisible = !(clickedAway = false);
});

$(document).bind("click", function (e) {
    if (isVisible && clickedAway && $(e.target).parents(".popover").length == 0) {
        self.onClose();
        isVisible = clickedAway = false;
    } else clickedAway = true;
});

}

这是我的解。

引导5更新:

$(document).on('click', function (e) {
    var
        $popover,
        $target = $(e.target);

    //do nothing if there was a click on popover content
    if ($target.hasClass('popover') || $target.closest('.popover').length) {
        return;
    }

    $('[data-bs-toggle="popover"]').each(function () {
        $popover = $(this);

        if (!$popover.is(e.target) &&
            $popover.has(e.target).length === 0 &&
            $('.popover').has(e.target).length === 0)
        {
            $popover.popover('hide');
        } 
    });
})

根据http://getbootstrap.com/javascript/#popovers，

<button type="button" class="popover-dismiss" data-toggle="popover" title="Dismissible popover" data-content="Popover Content">Dismissible popover</button>

使用焦点触发器可以在用户下一次单击时取消弹出窗口。

$('.popover-dismiss').popover({
    trigger: 'focus'
})