我正在尝试从命名枚举中获取元素。命名枚举本身不为空,但 hasNext() 给了我错误。
我究竟做错了什么?
public static void main(String[] args) {
try {
DirContext context = new InitialDirContext(
Environment.getEnvironment());
SearchControls controls = new SearchControls();
controls.setSearchScope(SearchControls.SUBTREE_SCOPE);
String[] attrIDs = { "cn", "givenname", "sn", "mail" };
controls.setReturningAttributes(attrIDs);
NamingEnumeration enumResult = context.search(
"DC=PORTAL,DC=COMPANY,DC=BE", "(CN=*)",
controls);
System.out.println(enumResult.hasMore());
context.close();
} catch (AuthenticationException e) {
System.out.println("Invalid credentials");
} catch (NamingException e) {
System.out.println("Lookup failed: " + e);
}
}
AD 的结构(在使用 AD-LDS 的 Localhost 上)
DC=PORTAL,DC=COMPANY,DC=BE
->OU=Accounts
==>CN=John Doe
==>CN=Jane Doe
->CN=LostAndFound
->CN=NTDS 配额
->CN=角色
->OU=系统帐户
==>CN=PortalAdmin
将我的搜索库缩小到“OU=ACCOUNTS,DC=PORTAL,DC=COMPANY,DC=BE”会出现以下错误
查找失败:javax.naming.NameNotFoundException:[LDAP:错误代码 32 - 000020 8D:NameErr:DSID-031522C9,问题 2001(NO_OBJECT),数据 0,最佳匹配:'DC=PORTAL,DC=COMPANY,DC=BE ' ]; 剩余名称 'OU=ACCOUNTS,DC=PORTAL,DC=COMPANY,DC=BE'
解决方案:
try {
DirContext ctx = new InitialDirContext(Environment.getEnvironment());
// Get all the attributes of named object
Attributes attrs = ctx
.getAttributes("cn=John Doe,ou=Accounts,DC=PORTAL,DC=COMPANY,DC=BE");
if (attrs == null) {
System.out.println("No attributes");
} else {
/* Print each attribute */
try {
for (NamingEnumeration ae = attrs.getAll(); ae.hasMore();) {
Attribute attr = (Attribute) ae.next();
System.out.println("attribute: " + attr.getID());
/* print each value */
for (NamingEnumeration e = attr.getAll(); e.hasMore(); System.out
.println("value: " + e.next()))
;
}
} catch (NamingException e) {
e.printStackTrace();
}
}
ctx.close();
} catch (AuthenticationException e) {
System.out.println("Invalid credentials");
} catch (NamingException e) {
System.out.println("Lookup failed: " + e);
}