java操作LDAP

 SUNOne:  
   
  1.连接  
   
  import   java.util.Hashtable;  
   
  import   javax.naming.Context;  
  import   javax.naming.NamingException;  
  import   javax.naming.directory.DirContext;  
  import   javax.naming.directory.InitialDirContext;  
   
  public   class   ActiveDirectoryConntct1  
  {  
          public   static   void   main(String[]   args)  
          {  
                  String   account="user1";  
                  String   password="password1";  
                  String   root="dc=test,dc=com";   //root  
   
                  Hashtable   env   =   new   Hashtable();  
                  env.put(Context.INITIAL_CONTEXT_FACTORY,   "com.sun.jndi.ldap.LdapCtxFactory");  
                  env.put(Context.PROVIDER_URL,   "ldap://192.168.0.1:389/"   +   root);  
                  env.put(Context.SECURITY_AUTHENTICATION,   "simple");  
                  env.put(Context.SECURITY_PRINCIPAL,   "uid="   +   account   +   ","   +   root);  
                  env.put(Context.SECURITY_CREDENTIALS,   password);  
   
                  DirContext   ctx   =   null;  
                  try  
                  {  
                          ctx   =   new   InitialDirContext(env);  
                          System.out.println("认证成功");  
                  }  
                  catch(javax.naming.AuthenticationException   e)  
                  {  
                          System.out.println("认证失败");  
                  }  
                  catch(Exception   e)  
                  {  
                          System.out.println("认证出错：");  
                          e.printStackTrace();  
                  }  
   
                  if(ctx   !=   null)  
                  {  
                          try  
                          {  
                                  ctx.close();  
                          }  
                          catch   (NamingException   e)  
                          {  
                                  //ignore  
                          }  
                  }  
                  System.exit(0);  
          }  
  }  
   
  2.查询  
  DirContext   ctx   =   ...  
  SearchControls   constraints   =   new   SearchControls();  
  constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);  
  //constraints.setSearchScope(SearchControls.ONELEVEL_SCOPE);  
  NamingEnumeration   en   =   ctx.search("",   "uid=*",   constraints);   //查询所有用户  
  while   (en   !=   null   &&   en.hasMoreElements())  
  {  
          Object   obj   =   en.nextElement();  
          if(obj   instanceof   SearchResult)  
          {  
                  SearchResult   si   =   (SearchResult)   obj;  
           
                  System.out.println("name:   "   +   si.getName());  
           
                  Attributes   attrs   =   si.getAttributes();  
                  if   (attrs   ==   null)  
                  {  
                          System.out.println("No   attributes");  
                  }  
                  else  
                  {  
                          for   (NamingEnumeration   ae   =   attrs.getAll();   ae.hasMoreElements();)  
                          {  
                                  Attribute   attr   =   (Attribute)   ae.next();  
                                  String   attrId   =   attr.getID();  
           
                                  for   (Enumeration   vals   =   attr.getAll();vals.hasMoreElements();)  
                                  {  
                                          System.out.print(attrId   +   ":   ");  
                                          Object   o   =   vals.nextElement();  
                                          if(o   instanceof   byte[])  
                                                  System.out.println(new   String((byte[])o));  
                                          else  
                                                  System.out.println(o);  
                                  }  
                          }  
                  }  
          }  
          else  
          {  
                  System.out.println(obj);  
          }  
          System.out.println();  
  }  
  ...  
  ctx.close();  
   
  3.添加  
  DirContext   ctx   =   ...;  
  String   newUserName   =   "user2";  
   
  BasicAttributes   attrs   =   new   BasicAttributes();  
   
  BasicAttribute   objclassSet   =   new   BasicAttribute("objectclass");  
  objclassSet.add("person");    
  objclassSet.add("top");    
  objclassSet.add("organizationalPerson");    
  objclassSet.add("inetOrgPerson");  
   
  attrs.put(objclassSet);  
  attrs.put("sn",   newUserName);  
  attrs.put("uid",   newUserName);  
   
  ctx.createSubcontext("uid="   +   newUserName,   attributes);  
  ...  
   
   
  4.删除  
  String   account   =   "user2";  
  DirContext   ctx   =   ...;  
  ctx.destroySubcontext("uid="   +   account);  
   
   
  5.修改  
  String   account   =   "user2";  
  String   newDisplayName   =   "newDisplayName";  
   
  ModificationItem   modificationItem[]   =   new   ModificationItem[1];  
  modificationItem[0]   =  
  new   ModificationItem(  
  DirContext.REPLACE_ATTRIBUTE,  
  new   BasicAttribute("displayName",   newDisplayName);  
   
  DirContext   ctx   =   ...;  
  ctx.modifyAttributes("uid="   +   account,   modificationItem);