我正在使用JNDI连接LDAP活动目录,我想搜索名称中包含搜索字符串的用户,所以我的搜索方法如下:
public static List<LDAPUser> searchContactsByName(
ExtendedDirContext extendedDirContext, String name) {
try {
LdapContext ldapContext = extendedDirContext.getLdapContext();
String searchBaseStr = extendedDirContext.getSearchBase();
String sortKey = LDAPAttributes.NAME;
ldapContext.setRequestControls(new Control[] { new SortControl(
sortKey, Control.CRITICAL) });
SearchControls searchCtls = new SearchControls();
searchCtls.setTimeLimit(1000 * 10);
String returnedAtts[] = { LDAPAttributes.USER_NAME,
LDAPAttributes.NAME };
searchCtls.setReturningAttributes(returnedAtts);
searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
String searchFilter = "(&(ObjectCategory=person)(cn=*" + name
+ "*))";
NamingEnumeration<SearchResult> results = ldapContext.search(
searchBaseStr, searchFilter, searchCtls);
List<LDAPUser> users = new ArrayList<LDAPUser>(0);
while (results.hasMoreElements()) {
SearchResult sr = (SearchResult) results.next();
Attributes attrs = sr.getAttributes();
LDAPUser user = new LDAPUser();
user.setName(attrs.get(LDAPAttributes.NAME).toString()
.replace("cn: ", ""));
user.setUserName(attrs.get(LDAPAttributes.USER_NAME).toString()
.replace("sAMAccountName: ", ""));
users.add(user);
}
return users;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
以下是我连接 LDAP 的方式:
public static ExtendedDirContext connectToLdap(MessageSource messageSource) {
try {
log.debug("connectToLdap");
String providerUrl = messageSource.getMessage("provider.url", null,
null);
String securityPrincipal = messageSource.getMessage(
"security.principal", null, null);
String securityCredentials = messageSource.getMessage(
"security.credentials", null, null);
String searchBase = messageSource.getMessage("search.base", null,
null);
boolean ssl = Boolean.parseBoolean(messageSource.getMessage("ssl",
null, null));
LdapContext ldapContext;
Hashtable<String, String> ldapEnv = new Hashtable<String, String>(
11);
ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
ldapEnv.put(Context.PROVIDER_URL, providerUrl);
ldapEnv.put(Context.SECURITY_AUTHENTICATION, "simple");
ldapEnv.put(Context.SECURITY_PRINCIPAL, securityPrincipal);
ldapEnv.put(Context.SECURITY_CREDENTIALS, securityCredentials);
if (ssl)
ldapEnv.put(Context.SECURITY_PROTOCOL, "ssl");
// To get rid of the PartialResultException when using Active
// Directory
ldapEnv.put(Context.REFERRAL, "follow");
ldapContext = new InitialLdapContext(ldapEnv, null);
ExtendedDirContext extendedDirContext = new ExtendedDirContext();
extendedDirContext.setLdapContext(ldapContext);
extendedDirContext.setSearchBase(searchBase);
log.debug("success connection to ldap");
return extendedDirContext;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
LDAP 凭据如下:
provider.url=ldap://dc.fabrikam.com:389
security.principal=CN=administrator,CN=Users,DC=fabrikam,DC=com
security.credentials=password
search.base=dc=fabrikam,dc=com
为什么搜索要花这么多时间来检索数据?由于 AD 中只有 285 个联系人,我可以做些什么来加快搜索速度?