JAVA访问ldap

import java.util.Properties;

import javax.naming.*;
import javax.naming.directory.*;
import javax.naming.ldap.*;

public class LDAPTest {

public static void main(String[] args) {

Properties env = new Properties();

env.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env.setProperty(Context.SECURITY_AUTHENTICATION, "none");
env.setProperty(Context.PROVIDER_URL, "LDAP://yourLdapServer:389");
try {
LdapContext ctx = new InitialLdapContext(env, null);
SearchControls searchCtls = new SearchControls();
searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
String searchFilter = "objectClass=*";

//Specify the Base for the search
String searchBase = "ou=People,O=yourDomain";
//initialize counter to total the group members
int totalResults = 0;
//Specify the attributes to return
String returnedAtts[] = {"mail"};
searchCtls.setReturningAttributes(returnedAtts);

//Search for objects using the filter
NamingEnumeration answer = ctx.search(searchBase, searchFilter,
searchCtls);
//Loop through the search results
while (answer.hasMoreElements()) {
SearchResult sr = (SearchResult) answer.next();
System.out.println(">>>" + sr.getName());
//Print out the groups
Attributes attrs = sr.getAttributes();
if (attrs != null) {
try {
for (NamingEnumeration ae = attrs.getAll(); ae.hasMore(); ) {
Attribute attr = (Attribute) ae.next();
System.out.println("AttributeID: " + attr.getID());
for (NamingEnumeration e = attr.getAll(); e.hasMore();
totalResults++) {
System.out.println("Attributes:"+e.next());
}
}
} catch (NamingException e) {
e.printStackTrace();
System.err.println("Problem listing membership: " + e);
}
}
}
System.out.println("Total groups: " + totalResults);
ctx.close();
}catch (NamingException e) {
e.printStackTrace();
System.err.println("Problem searching directory: " + e);
}

}

}