java.security.AccessControlException：访问被拒绝（“java.util.PropertyPermission”“java.net.useSystemProxies”“write”）
当我尝试以 jnlp 格式打开 javafx 应用程序时，出现以下异常：
java.security.AccessControlException: access denied ("java.util.PropertyPermission" "java.net.useSystemProxies" "write")
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.System.setProperty(Unknown Source)
at org.jugc.view.JugCMain.<clinit>(JugCMain.java:37)
... 10 more
如何解决此问题？
When I'm trying to open my javafx application in jnlp format I'm getting the following exception:
java.security.AccessControlException: access denied ("java.util.PropertyPermission" "java.net.useSystemProxies" "write")
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.System.setProperty(Unknown Source)
at org.jugc.view.JugCMain.<clinit>(JugCMain.java:37)
... 10 more
How to resolve this?
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您在 JugCMain.java:37 进行什么操作？
从 jnlp/applet 访问系统属性受到安全限制。
所有未签名的 jnlp/applet 都在沙箱中运行，权限有限，以避免损害客户端的工作站。
如果您想使用系统属性，您可能需要对应用程序进行签名，请参阅 http://java.sun.com/developer/Books/javaprogramming/JAR/sign/signing.html
如果您在 JavaFX 项目中使用 NetBeans 7.1，则可以访问
“项目属性->构建->部署”，然后单击选项“请求无限制访问”
what kind of operation are you doing at JugCMain.java:37 ?
Accessing system properties from jnlp/applet are subject to security restrictions.
All unsigned jnlp/applets are being run in sandbox with limited rights to avoid harming client's workstation.
You may want to sign your application if you want to use system propeties, see http://java.sun.com/developer/Books/javaprogramming/JAR/sign/signing.html
If you are using NetBeans 7.1 for your JavaFX project you can just go to
"Project Properties->Build->Deployment" and click option "Request unrestricted access"