通过Flex读写浏览器中的cookie的方法整理

一直以来都想做个网站管理的编辑器，但是我预估到的最大问题就是用flex来访问和读取网站，其中就用到了登陆校验的cookie，但是找了好多的网站，都没有找到相关的，信心，只是在adobe的官方的api中介绍了新增的htmlLoader 的相关属性方法，无济于事，自己去研究，调了又调，试了又试的，终于向客户端写cookie成功了，跟大家分享一下： 其实有两种方法可行： 方法一：是再模板html中添加一段js写cookie的代码，再flex端用ExternalInterface.call来调用，感觉麻烦，没用这种方法： 方法二：直接在flex端向客户端写cookie 关键代码是：

//向客户端写入cookie   
private function setMyCookie(name:String,value:String) :void{    
ExternalInterface.call("function (name,value) " +      
"{ " +    
" var Days = 30; "+   
" var exp = new Date();"+   
" exp.setTime(exp.getTime() + Days*24*60*60*1000); "+      
" document.cookie = name+ '='+ escape (value) + ';expires=' + exp.toGMTString();" +   
" }",name,value);   
}   

完整的用户登录代码，当用户登录成功时，调用向客户端写cookie的代码

<?xml version="1.0" encoding="utf-8"?>   
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark"  xmlns:mx="library://ns.adobe.com/flex/halo" xmlns:code="http://code.google.com/p/flexlib/">   
 <s:states>   
       <s:State name="maxState"/>   
        <s:State name="minState"/>   
    </s:states>   
    <s:layout>   
        <s:BasicLayout/>   
    </s:layout>   
       
    <fx:Script>      
        <![CDATA[   
            import mx.controls.Alert;   
            import net.shopin.service.*;   
            import net.shopin.vo.SysUserVO;   
            import net.util.ShareScript;   
               
            private var sysUser:SysUserVO = null;   
               
            //公共变量   
            private var shareFunc:ShareScript = new ShareScript();   
               
            //监听用户的键盘回车事件   
            private function keyHandler(event: KeyboardEvent): void {   
                if (event.keyCode == 13) {   
                    login();   
                }   
            }   
               
            //退出系统   
            private function logOut():void  
            {   
                logs.visible = true;   
                shareFunc.clearShare();   
                resetHandle();   
            }   
               
            //用户登录   
            private function login():void {   
                if (username.text=="" || password.text=="") {   
                    Alert.show("用户名和密码不能为空");   
                }else{   
                    var service:ReportService = new ReportService(resultLogin);   
                    service.login(username.text);   
                }   
            }   
               
            //登录回调信息   
            private function resultLogin(data:Object):void {   
                sysUser = data as SysUserVO;   
                if (sysUser.loginName != null && sysUser.userPassword == password.text) {   
                       
                    logs.visible = false;   
                    if (rec.selected) {   
                        shareFunc.writeShare(username.text, password.text);   
                    }   
                    setMyCookie(sysUser.loginName,sysUser.userPassword);   
                } else {   
                    password.text = "";   
                    Alert.show("用户名或密码有误，请重新输入！");   
                }   
            }   
            //重置   
            private function resetHandle():void  
            {   
                username.text = "";   
                password.text = "";   
            }   
               
            //向客户端写入cookie信息   
            private function setMyCookie(name:String,value:String) :void{    
                ExternalInterface.call("function (name,value) " +      
                    "{ " +    
                    " var Days = 30; "+   
                    " var exp = new Date();"+   
                    " exp.setTime(exp.getTime() + Days*24*60*60*1000); "+      
                    " document.cookie = name+ '='+ escape (value) + ';expires=' + exp.toGMTString();" +   
                    " }",name,value);   
            }    
               
        ]]>   
    </fx:Script>   
       
       
    <mx:Panel x="414.5" y="274" width="387" height="305" layout="absolute" title="管理员登录" fontFamily="Georgia"  
              fontSize="14" id="logs" visible="true" width.maxState="353" height.maxState="268" x.maxState="411.5" y.maxState="274" title.maxState="管理员登录">   
        <mx:Label x="41.5" y="33" text="用户名" fontWeight="bold"/>   
        <mx:Label x="51.5" y="81" text="密码" fontWeight="bold"/>   
        <mx:TextInput x="94.5" y="33" id="username" width="174.5" />   
        <mx:TextInput x="94.5" y="79" id="password" displayAsPassword="true" width="174.5" />   
           
        <mx:Button x="96.5" y="211" label="登录" id="btnLogin" click="login();" x.maxState="97.5" y.maxState="175"/>   
        <mx:Button x="198.5" y="211" label="重置" id="btnReset" click="resetHandle()" x.maxState="199.5" y.maxState="175"/>   
           
        <mx:CheckBox id="rec" x="96.5" y="166" label="记住用户名密码" height="37" x.maxState="97.5" y.maxState="126"/>   
    </mx:Panel>   
       
</s:Application>