openLaszlo简单登陆窗口实现

 laszlo 部分

<?xml version="1.0" encoding="GB2312"?>
<canvas bgcolor="0xEAEAEA" height="600" width="800"
    oninit="quest.setAttribute('haswindowfocus', true)">
    <silverstyle isdefault="true" canvascolor="null"/>
    <bluestyle name="bluecolors" canvascolor="null"/>
    <goldstyle name="goldcolors" canvascolor="null"/>
    
    <dataset name="checker" src="check.jsp" type="http"/>

<modaldialog id="letmein" height="200" width="300" x="180" y="100" style="bluecolors">
    <animator name="fadein" attribute="opacity"  from="0" to="1"  duration="500" start="false"/>
        <method name="doAfter">
            quest.fadein.doStart();
            bye.setAttribute('text','再见');
        </method>
    <form id="loginform">
    <submit name="doSubmit" data="${checker}"/>
    <view id="loginmain" align="center" layout="axis: y; spacing: 20">
        <view layout="axis: x; spacing: 5">
            <text y="2" >用户:</text>
            <edittext width="120" id="username" name="username">哈哈</edittext>
        </view>
        <view layout="axis: x; spacing: 5">
            <text y="2" >密码:</text>
            <edittext id="password" width="120" name="password">123</edittext>
        </view>
        <view align="center" layout="axis:x; spacing:20" y="150">
              <button>确认
                <method event="onclick">
                    loginform.doSubmit.submit();
                </method>
              </button>
              <button>取消
                <method event="onclick">
                    letmein.close();
                    letmein.doAfter();
                </method>
              </button>
        </view>
    <datapointer id="respoint" xpath="checker:/response">
        <method event="ondata">
            if (this.xpathQuery("/response/text()")=="ok") {
                letmein.close();
                quest.fadein.doStart();
                bye.setAttribute('text','欢迎'+username.getText());
                quest.out();
            }
            else
                err.open();
        </method>
    </datapointer>
    </view>
    </form>
</modaldialog>
<alert id="err">密码错误!</alert>
<window style="goldcolors" id="quest" title="神秘地带"
            x="100" y="40" width="500" height="300" resizable="true">
    <animator name="fadeout" attribute="opacity"  to=".15"  duration="500" start="false"/>
    <animator name="fadein" attribute="opacity"  from=".15" to="1"  duration="500" start="false"/>
    <animator name="leftesc" attribute="x" from="100" to="-900" duration="200" start="false"/>
    <method event="oninit">
        this.logonDelegate = new LzDelegate(this, "logonmethod" );
        LzTimer.addTimer( this.logonDelegate, 2000 );
    </method>
    <method name="logonmethod">
        this.fadeout.doStart();
        letmein.open();
        letmein.fadein.doStart();
    </method>
    <method name="out">
        this.leftescDelegate = new LzDelegate(this, "leftout" );
        LzTimer.addTimer( leftescDelegate, 5000 );
    </method>
    <method name="leftout">
            quest.leftesc.doStart();
            quest.destory();
    </method>
    <view x="${(immediateparent.width / 2) 
                       - (this.width / 2)}" y="${(immediateparent.height / 2) 
                       - (this.height / 2)}">
        <text id="bye" fontsize="40" width="300"></text>
    </view>
</window>
</canvas>

check.jsp部分

<?xml version="1.0" encoding="GBK"?>
<%...@ page import="java.util.*" %>
<%...@ page contentType="text/xml; charset=GBK" %>

<response>
<%...
    String user = request.getParameter("username");
    String password = request.getParameter("password");
    String uuser = new String(user.getBytes("8859_1"), "UTF-8");
    if(uuser.equals("haha")&&password.equals("123"))
        out.print("ok");
%>
</response>