compact1, compact2, compact3

java.nio.file

Class LinkPermission

java.lang.Object

java.security.Permission

java.security.BasicPermission

java.nio.file.LinkPermission

All Implemented Interfaces:

Serializable， Guard

public final class LinkPermission
extends BasicPermission

链接生成操作的 Permission类。

下表提供了一个对权限允许的简要说明，并讨论了授予代码权限的风险。

Permission Target Name	What the Permission Allows	Risks of Allowing this Permission
hard	Ability to add an existing file to a directory. This is sometimes known as creating a link, or hard link.	Extreme care should be taken when granting this permission. It allows linking to any file or directory in the file system thus allowing the attacker access to all files.
symbolic	Ability to create symbolic links.	Extreme care should be taken when granting this permission. It allows linking to any file or directory in the file system thus allowing the attacker to access to all files.

从以下版本开始：

一点七

另请参见：

Files.createLink(java.nio.file.Path, java.nio.file.Path)， Files.createSymbolicLink(java.nio.file.Path, java.nio.file.Path, java.nio.file.attribute.FileAttribute<?>...)， Serialized Form

构造方法摘要

构造方法

Constructor and Description
LinkPermission(String name) 构建了一个具有指定名称的 LinkPermission。
LinkPermission(String name, String actions) 构建了一个具有指定名称的 LinkPermission。

方法摘要

Methods inherited from class java.security.BasicPermission

equals, getActions, hashCode, implies, newPermissionCollection

Methods inherited from class java.security.Permission

checkGuard, getName, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LinkPermission

public LinkPermission(String name)

构建了一个具有指定名称的 LinkPermission。

参数

name -权限的名称。它必须是“硬”或“象征性的”。

异常

IllegalArgumentException如果名称是空的或无效的

LinkPermission

public LinkPermission(String name,
                      String actions)

构建了一个 LinkPermission具有指定名称。

参数

name -权限的名称；必须是“硬”或“符号”。

actions -权限的行为；必须是空字符串或 null

异常

IllegalArgumentException如果名称是空的或无效的行为，或是一个非空字符串