java.security.AccessControlException: 访问被拒绝 (java.io.FilePermission [英] java.security.AccessControlException: Access denied (java.io.FilePermission

问题描述

final File parentDir = new File("S:\PDSPopulatingProgram");
parentDir.mkdir();
final String hash = "popupateData";
final String fileName = hash + ".txt";
final File file = new File(parentDir, fileName);
file.createNewFile(); // Creates file PDSPopulatingProgram/popupateData.txt

我正在尝试在文件夹中创建一个文件，但出现异常

I am trying to create a file in a folder but I am getting exception as

java.security.AccessControlException: Access denied

我在 windows 环境下工作.我可以从 Windows 资源管理器中创建一个文件夹，但不能从 Java 代码中创建.

I am working in windows environment. I can create a folder from the Windows Explorer, but not from the Java Code.

我该如何解决这个问题?

How can I resolve this issue?

推荐答案

在你的 libsecurityjava.policy 中尝试添加:

Within your <jre location>libsecurityjava.policy try adding:

grant {权限 java.security.AllPermission;};

看看它是否允许你.如果是这样，您将不得不添加更精细的权限.

And see if it allows you. If so, you will have to add more granular permissions.

见:

java.policy 文件的 Java 8 文档

和

http://java.sun.com/developer/onlineTraining/Programming/JDCBook/appA.html

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