检索专有名称
原文: https://docs.oracle.com/javase/tutorial/jndi/newstuff/dn.html
在 5.0 之前的 JDK 版本中,没有直接的方法从搜索结果中获取专有名称(DN)。 SearchResults.getName()
方法始终返回相对于执行搜索的上下文的名称。为了获得搜索条目的绝对名称或全名,需要一定量的簿记来跟踪祖先上下文。每当在上下文中执行搜索,列表或 listBindings 操作时,JDK 5.0 中将添加以下两个新 API 以从 NameClassPair 检索绝对名称:
以下是从 LDAP 搜索中检索 DN 的示例:
public static void printSearchEnumeration(NamingEnumeration retEnum) {
try {
while (retEnum.hasMore()) {
SearchResult sr = (SearchResult) retEnum.next();
System.out.println(">>" + sr.getNameInNamespace());
}
} catch (NamingException e) {
e.printStackTrace();
}
}
完整的例子可以从 here
获得。该程序生成如下输出:
>>cn=Jon Ruiz, ou=People, o=JNDITutorial
>>cn=Scott Seligman, ou=People, o=JNDITutorial
>>cn=Samuel Clemens, ou=People, o=JNDITutorial
>>cn=Rosanna Lee, ou=People, o=JNDITutorial
>>cn=Maxine Erlund, ou=People, o=JNDITutorial
>>cn=Niels Bohr, ou=People, o=JNDITutorial
>>cn=Uri Geller, ou=People, o=JNDITutorial
>>cn=Colleen Sullivan, ou=People, o=JNDITutorial
>>cn=Vinnie Ryan, ou=People, o=JNDITutorial
>>cn=Rod Serling, ou=People, o=JNDITutorial
>>cn=Jonathan Wood, ou=People, o=JNDITutorial
>>cn=Aravindan Ranganathan, ou=People, o=JNDITutorial
>>cn=Ian Anderson, ou=People, o=JNDITutorial
>>cn=Lao Tzu, ou=People, o=JNDITutorial
>>cn=Don Knuth, ou=People, o=JNDITutorial
>>cn=Roger Waters, ou=People, o=JNDITutorial
>>cn=Ben Dubin, ou=People, o=JNDITutorial
>>cn=Spuds Mackenzie, ou=People, o=JNDITutorial
>>cn=John Fowler, ou=People, o=JNDITutorial
>>cn=Londo Mollari, ou=People, o=JNDITutorial
>>cn=Ted Geisel, ou=People,o=JNDITutorial