通过注释中指向原始问题的链接，我能够获得所需的答案。

在我的$stateProvider.state(......)路线之前，我 现在有这段代码：

$urlRouterProvider.rule(function ($injector, $location) {
       //what this function returns will be set as the $location.url
        var path = $location.path(), normalized = path.toLowerCase();
        if (path != normalized) {
            //instead of returning a new url string, I'll just change the $location.path directly so I don't have to worry about constructing a new url string and so a new state change is not triggered
            $location.replace().path(normalized);
        }
        // because we've returned nothing, no state change occurs
    });

本质上，它将toLowerCase()是一个还不是全部小写的URL。

完成后，它将替换url而不是重定向。然后以匹配状态进行。