问题列表 - 第1501页 | 那些遇到过的问题

昨天我试着开始使用Java RMI.我找到了这个sun教程(http://java.sun.com/docs/books/tutorial/rmi/index.html)并开始使用服务器实现.但每次我开始计划(rmiregistry正在运行)我得到一个带有以下StackTrace的AccessControlException:

LoginImpl exception:
java.security.AccessControlException: access denied (java.io.FilePermission \\\C\ProjX\server\serverProj\bin\usermanager read)
    at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
    at java.security.AccessController.checkPermission(AccessController.java:427)
    at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
    at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
    at java.io.File.exists(File.java:700)
    at sun.net.www.protocol.file.Handler.openConnection(Handler.java:80)
    at sun.net.www.protocol.file.Handler.openConnection(Handler.java:55)
    at java.net.URL.openConnection(URL.java:943)
    at sun.rmi.server.LoaderHandler.addPermissionsForURLs(LoaderHandler.java:1020)
    at sun.rmi.server.LoaderHandler.access$300(LoaderHandler.java:52)
    at sun.rmi.server.LoaderHandler$Loader.<init>(LoaderHandler.java:1108)
    at sun.rmi.server.LoaderHandler$Loader.<init>(LoaderHandler.java:1089)
    at sun.rmi.server.LoaderHandler$1.run(LoaderHandler.java:861)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.server.LoaderHandler.lookupLoader(LoaderHandler.java:858)
    at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:541)
    at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628)
    at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294)
    at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238)
    at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1494)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1457)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
    at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
    at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:375)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:240)
    at sun.rmi.transport.Transport$1.run(Transport.java:153)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
    at …

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java policy rmi

use*_*913

2011 09-19

15
推荐指数

2
解决办法

5万
查看次数

Crossbrowser相当于explicitOriginalTarget事件参数

有没有人知道相当于explicitOriginalTarget事件参数的crossbrowser？此参数是特定于Mozilla的,它为我提供了导致模糊的元素.假设我的页面上有文本输入和链接.文本输入具有焦点.如果我点击链接,文本输入的模糊事件通过explicitOriginalTarget参数为我提供了Firefox中的链接元素.

我正在扩展Autocompleter.Base的onBlur方法,以便在搜索字段失去对给定元素的焦点时不隐藏搜索结果.默认情况下,如果搜索字段失去对任何元素的焦点,则onBlur方法会隐藏.

Autocompleter.Base.prototype.onBlur = Autocompleter.Base.prototype.onBlur.wrap(
function(origfunc, ev) {
    var newTargetElement = (ev.explicitOriginalTarget.nodeType == 3 ? ev.explicitOriginalTarget.parentNode: ev.explicitOriginalTarget); // FIX: This works only in firefox because of event's explicitOriginalTarget property
    var callOriginalFunction = true;
    for (i = 0; i < obj.options.validEventElements.length; i++) {
        if ($(obj.options.validEventElements[i])) {
            if (newTargetElement.descendantOf($(obj.options.validEventElements[i])) == true || newTargetElement == $(obj.options.validEventElements[i])) {
                callOriginalFunction = false;
                break;
            }
        }
    }
    if (callOriginalFunction) {
        return origFunc(ev);
    }
}
);


new Ajax.Autocompleter("search-field", "search-results", 'getresults.php', { validEventElements: ['search-field','result-count'] });

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谢谢.

javascript events scriptaculous cross-browser

mat*_*tte

2008 10-08

17
推荐指数

1
解决办法

1万
查看次数