Java SecurityManager checkPackageAccess（）方法与示例

SecurityManager类的checkPackageAccess()方法 (SecurityManager Class checkPackageAccess() method)

• checkPackageAccess() method is available in java.lang package.

  checkPackageAccess()方法在java.lang包中可用。

• We call getProperty("package.access") to get a list of restricted package and it checks when pkg_name starts with or similar to any of the list of restricted packages and when it matches then it calls checkPermission with the RuntimePermission("accessClassInPackage."+pkg_name).

  我们调用getProperty(“ package.access”)来获取受限程序包列表，它检查pkg_name何时以任何受限程序包列表开头或与之类似，并且何时匹配，然后调用带有RuntimePermission(“ accessClassInPackage”的checkPermission)。 + pkg_name)。

• checkPackageAccess() method is a non-static method, it is accessible with the class object only and