LdapContext.search()没有数据，怎么查问题原因

各位 ，我用了网上找到java调用ldap协议方法 但是LdapContext.search()的时候没有数据 ，也没有报错 ，搞不清楚我是哪里参数问题还是其他问题。 源码如下
package com.domain;
import java.util.Hashtable;
import javax.naming.AuthenticationException;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attributes;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
public class UserAuthenticate {
private String URL = "ldap://localhost:389";
private String SEARCHDN = "CN=alimailfad,OU=service,DC=hz,DC=ali,DC=com";
private String FACTORY = "com.sun.jndi.ldap.LdapCtxFactory";
private String BASEDN = "DC=hz,DC=ali,DC=com";
private LdapContext ctx = null;
private Hashtable env = null;
private Control[] connCtls = null;
private void LDAP_connect() {
env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, FACTORY);
env.put(Context.PROVIDER_URL, URL);// LDAP server
env.put(Context.SECURITY_PRINCIPAL, SEARCHDN);
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_CREDENTIALS, "password");
// 此处若不指定用户名和密码,则自动转换为匿名登录
try {
ctx = new InitialLdapContext(env, connCtls);
} catch (NamingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private String getUserDN(String email) {
String userDN = "";
LDAP_connect();
try {
String filters = "(&(&(objectCategory=person)(objectClass=user))(sAMAccountName=elbert.chenh))";
String[] returnedAtts = { "distinguishedName",
"userAccountControl", "displayName", "employeeID" };
SearchControls constraints = new SearchControls();
constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);
if (returnedAtts != null && returnedAtts.length > 0) {
constraints.setReturningAttributes(returnedAtts);
}
NamingEnumeration en = ctx.search(BASEDN, filters, constraints);
if (en == null) {
System.out.println("Have no NamingEnumeration.");
}
if (!en.hasMoreElements()) {
System.out.println("Have no element.");
} else {
while (en != null && en.hasMoreElements()) {
Object obj = en.nextElement();
if (obj instanceof SearchResult) {
SearchResult si = (SearchResult) obj;
Attributes userInfo = si.getAttributes();
userDN += userInfo.toString();
userDN += "," + BASEDN;
} else {
System.out.println(obj.toString());
}
System.out.println(userDN);
}
}
} catch (Exception e) {
System.out.println("Exception in search():" + e);
}
return userDN;
}
public boolean authenricate(String ID, String password) {
boolean valide = false;
String userDN = getUserDN(ID);
try {
ctx.addToEnvironment(Context.SECURITY_PRINCIPAL, userDN);
ctx.addToEnvironment(Context.SECURITY_CREDENTIALS, password);
ctx.reconnect(connCtls);
System.out.println(userDN + " is authenticated");
valide = true;
} catch (AuthenticationException e) {
System.out.println(userDN + " is not authenticated");
System.out.println(e.toString());
valide = false;
} catch (NamingException e) {
System.out.println(userDN + " is not authenticated");
valide = false;
}
return valide;
}
}
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作者：linkyou
来源：CSDN
原文：https://blog.csdn.net/linkyou/article/details/6695754
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