本文整理匯總了Java中java.security.Policy.getInstance方法的典型用法代碼示例。如果您正苦於以下問題：Java Policy.getInstance方法的具體用法？Java Policy.getInstance怎麽用？Java Policy.getInstance使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.security.Policy的用法示例。
在下文中一共展示了Policy.getInstance方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: main
import java.security.Policy; //導入方法依賴的package包/類
public static void main(String[] args) throws Exception {
// Check policy with no java.security.policy property set
Policy p = Policy.getPolicy();
checkPolicy(p);
// Check policy with java.security.policy '=' option
System.setProperty("java.security.policy", "Extra.policy");
p.refresh();
checkPolicy(p);
// Check policy with java.security.policy override '==' option
System.setProperty("java.security.policy", "=Extra.policy");
p.refresh();
checkPolicy(p);
// Check Policy.getInstance
URI policyURI = Paths.get(System.getProperty("test.src"),
"Extra.policy").toUri();
p = Policy.getInstance("JavaPolicy", new URIParameter(policyURI));
checkPolicy(p);
}
示例2: main
import java.security.Policy; //導入方法依賴的package包/類
public static void main(String[] args) throws Exception {
Security.addProvider(new TestProvider());
MySecureClassLoader scl = new MySecureClassLoader();
File policyFile = new File(System.getProperty("test.src", "."),
"DefineClass.policy");
Policy p = Policy.getInstance("JavaPolicy",
new URIParameter(policyFile.toURI()));
Policy.setPolicy(p);
System.setSecurityManager(new SecurityManager());
ArrayList<Permission> perms1 = getPermissions(scl, p,
"http://localhost/",
"foo.Foo", FOO_CLASS,
null);
checkPerms(perms1, GRANTED_PERMS);
ArrayList<Permission> perms2 = getPermissions(scl, p,
"http://127.0.0.1/",
"bar.Bar", BAR_CLASS,
null);
checkPerms(perms2, GRANTED_PERMS);
assert(perms1.equals(perms2));
// check that class signed by baz is granted an additional permission
Certificate[] chain = new Certificate[] {getCert(BAZ_CERT)};
ArrayList<Permission> perms3 = getPermissions(scl, p,
"http://localhost/",
"baz.Baz", BAZ_CLASS,
chain);
List<Permission> perms = new ArrayList<>(Arrays.asList(GRANTED_PERMS));
perms.add(new PropertyPermission("user.dir", "read"));
checkPerms(perms3, perms.toArray(new Permission[0]));
}