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将URL参数附加到ActionScript中的URL

delimiter actionscript url flex

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Raul Agrait · 技术社区 · 17 年前

我试图在ActionScript中向URL字符串添加URL参数。目前,我正在检查现有的URL,看看它是否显式地有一个“?”确定是否存在任何现有参数,以确定我的参数分隔符是否应为“”或“&”。ActionScript中是否有可以简化以下代码的库或实用方法?

var existingParameter:Boolean = existingUrl.indexOf("?") != -1;
var urlDelimiter:String = (existingParameter) ? "&" : "?";

var urlParameter:String = urlDelimiter + "ParameterName=" + parameterValue;
var completeUrl:String = existingUrl + urlParameter;

2 回复 | 直到 17 年前

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Hrundik 17 年前

看看 URLVariables 和 URLLoader 课程。

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bedwyr 17 年前

HttpService 效用并利用其通过对象获取参数的能力。参数可以作为键值对发送,其余的由类处理。

下面是一个实用方法的示例,它正是这样做的:

public static function sendViaHttpService(url:String, 
                                          format:String,
                                          method:String, 
                                          onComplete:Function, 
                                          onFail:Function, 
                                          parameters:Object=null):void {

    var http:HTTPService = new HTTPService();
    http.url = url;
    http.resultFormat = format;
    http.method = method;

    // create callback functions which remove themselves from the http service 
    // Don't want memory leaks
    var pass:Function = function(event:ResultEvent):void {
        onComplete(event);
        http.removeEventListener(ResultEvent.RESULT, pass);
    }
    var fail:Function = function(event:FaultEvent):void {
        onFail(event);
        http.removeEventListener(FaultEvent.FAULT, fail);
    }

    http.addEventListener(ResultEvent.RESULT, pass);
    http.addEventListener(FaultEvent.FAULT, fail);

    // yeah, we're going to send this in with the date to prevent 
    // browser-caching...kludgey, but it works
    if (parameters == null) {
        parameters = new Object();
    }
    // always get new date so the URL is not cached
    parameters.date = new Date().getTime();

    http.send(parameters);
} //sendViaHttpService()

var complete:Function = function(event:ResultEvent):void { /* your 
                                                              callback here */ };

var fail:Function = function(event:FaultEvent):void { /* your 
                                                         failure callback here */ };

var url:String = "<your URL here>";

sendViaHttpService(url, URLLoaderDataFormat.TEXT, URLRequestMethod.GET, complete, fail, { param1: 'value1', param2: 'value2' });