try{
Context cntxt = new InitialContext();
DataSource ds = (DataSource) cntxt.lookup("jdbc/dpt");
}
catch(NamingException ne){
...
}

try{
Properties env = new Properties();
InitialContext inictxt = new InitialContext(env);
TopicConnectionFactory connFactory = (TopicConnectionFactory) inictxt.lookup("TTopicConnectionFactory");
...
}
catch(NamingException ne){
...
}

Attribute attr = directory.getAttributes(personName).get("email");
String email = (String)attr.get();

foxes = directory.search("o=Wiz,c=US", "sn=Fox", controls);

Printer printer = (Printer)namespace.lookup(printerName);
printer.print(document);

NamingEnumeration list = namespace.list("o=Widget, c=US");
while (list.hasMore()) {
NameClassPair entry = (NameClassPair)list.next();
display(entry.getName(), entry.getClassName());
}

NamingEnumeration namEnumList = ctxt.listBinding("cntxtName");
...
while ( namEnumList.hasMore() ) {
Binding bnd = (Binding) namEnumList.next();
String sObjName = bnd.getName();
String sClassName = bnd.getClassName();
SomeObject objLocal = (SomeObject) bnd.getObject();
}

System.setProperty(Context.INITIAL_CONTEXT_FACTORY," 
com.sun.jndi.fscontext.FSContextFactory"); 
InitialContext ctx = new InitialContext();

 Hashtable env = new Hashtable(); 
 env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); 
 env.put(Context.PROVIDER_URL, "ldap://myserver.com/");
 env.put(Context.SECURITY_AUTHENTICATION, "simple"); 
 //登录ldap server需要的用户名 
 env.put(Context.SECURITY_PRINCIPAL, "ldapuser"); 
 //登录ldap server需要的密码 
 env.put(Context.SECURITY_CREDENTIALS, "mypassword"); 
InitialDirContext ctx = new InitialDirContext(env);

Hashtable env = new Hashtable(); 
 env.put(Context.INITIAL_CONTEXT_FACTORY, 
"com.sun.jndi.rmi.registry.RegistryContextFactory"); 
 env.put(Context.PROVIDER_URL, "rmi://myserver.com:1099"); 
 //使用不同的构造函数 
InitialContext ctx = new InitialContext(env); 

Greeter greeter = (Greeter)ctx.lookup("SayHello"); 

NamingEnumeration list = ctx.list("awt"); 
while (list.hasMore()) { 
 NameClassPair nc = (NameClassPair)list.next(); 
 System.out.println(nc); 
}

NamingEnumeration bindings = ctx.listBindings("awt"); 
while (bindings.hasMore()) { 
 Binding bd = (Binding)bindings.next(); 
 System.out.println(bd.getName() + ": " + bd.getObject()); 
} 

Fruit fruit = new Fruit("orange");
ctx.bind("favorite", fruit);

Fruit fruit = new Fruit("lemon");
ctx.rebind("favorite", fruit);

ctx.unbind("favorite"); 

ctx.rename("report.txt", "old_report.txt");

String dn = "uid=me, dc=mycompany, dc=com, ou=customer, o=ExampleApp"; 
Context user = (Context)ctx.lookup(dn); 
//获得所有属性 
Attributes attrs = user.getAttributes(""); 
Attribute test= attrs .get("test"); 
Object testValue= test.get(); 

String reqd_attrs = new String[] { "surname", "initials","title", "rfc822mailalias"}; 
Attributes attrs = user.getAttributes("", reqd_attrs); 

 public DirContext[] findUser(String initials,String surname,String country,String phone) { 
  //构造条件 
   BasicAttributes search_attrs = new BasicAttributes(); 
  search_attrs.put("initials", initials); 
  search_attrs.put("sn", surname); 
  search_attrs.put("c", country); 
  if(phone != null) 
   search_attrs.put("phonenumber", phone); 
  NamingEnumeration results = initial_ctx.search("ou=Customer,o=ExampleApp", search_attrs); 
  LinkedList found = new LinkedList(); 
  while(results.hasMore()) { 
   SearchResults sr = (SearchResults)results.next(); 
   String name = sr.getName(); 
   Object ctx = sr.getObject(); 
   if((ctx == null) || !(ctx instanceof DirContext)) 
    found.add(initial_ctx.lookup(name)); 
   else 
    found.add(ctx); 
  } 
  DirContext[] ret_val = new DirContext[found.size()]; 
  found.toArray(ret_val); 
  return ret_val; 
 } 

String reqd_attrs = new String[] { "cn", "uid","rfc822mailalias" }; 
NamingEnumeration results = initial_ctx.search("ou=Customer, o=ExampleApp",search_attrs,reqd_attrs); 

SearchControls ctrls = new SearchControls(); 
ctrls.setCountLimit(20); 
ctrls.setTimeLimit(5000); 
ctrls.setSearchScope(SearchControls.SUBTREE_SCOPE); 
NamingEnumeration results = initial_ctx.search("cat=books,ou=Products, 
o=ExampleApp","title=*Java*",ctrls); 

 public void updateAddress(String dn,String address, String country, String phone) { 
  BasicAttributes mod_attrs = new BasicAttributes(); 
  if(address != null) 
   mod_attrs.put("address", address); 
   if(country != null) 
    mod_attrs.put("c", country); 
  if(phone != null) 
    mod_attrs.put("phonenumber", phone); 
   if(mod_attrs.size() != 0) 
   initial_ctx.modifyAttributes(dn, DirContext.REPLACE_ATTRIBUTE, mod_attrs); 
} 

ModificationItem[] mod_items = new ModificationItems[2]; 
Attribute email = new BasicAttribute("rfc822mailalias", new_email); 
ModificationItem email_mod = new ModificationItem(DirContext.ADD_ATTRIBUTE, email); 
Attribute addr = new BasicAttribute("address", address); 
ModificationItem addr_mod = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, addr); 
mod_items[0] = email_mod; 
mod_items[1] = addr_mod; 
initial_ctx.modifyAttributes(dn, mod_items);

 BasicAttributes attrs = new BasicAttributes(); 
attrs.put("initials", initials); 
 attrs.put("sn", surname); 
 attrs.put("rfc822mailalias", email); 
 if(address != null) 
  attrs.put("address", address); 
 if(country != null) 
  attrs.put("c", country); 
 if(phone != null) 
 attrs.put("phonenumber", phone); 
initial_ctx.createSubcontext(dn, attrs); 

initial_ctx.destroySubcontext(dn); 

<Context path="/jndi"> 
 
 <Resource name="bean/MyBeanFactory" auth="Container" 
   type="com.huawei.jndi.bean.MyBean" 
   factory="org.apache.naming.factory.BeanFactory" 
   bar="23"/> 
 
</Context> 

try 
{ 
 Context initContext = new InitialContext(); 
 Context envCtx = (Context) initContext.lookup("java:comp/env"); 
 MyBean bean = (MyBean) envCtx.lookup("bean/MyBeanFactory"); 
 System.out.println(bean.getBar()); 
} 
catch (Exception e) 
{ 
 e.printStackTrace(); 
} 

<!-- JNDI模板 --> 
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate"> 
 <property name="environment"> 
  <props> 
   <prop key="java.naming.factory.initial">org.jnp.interfaces.NamingContextFactory</prop> 
   <prop key="java.naming.provider.url">10.137.96.212:18199</prop> 
   <prop key="java.naming.factory.url.pkgs">org.jnp.interfaces:org.jboss.naming</prop> 
  </props> 
 </property> 
</bean> 
 
<!-- 创建连接工厂 --> 
<bean id="jmsConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean"> 
 <property name="jndiTemplate" ref="jndiTemplate" /> 
 <property name="jndiName" value="TopicConnectionFactory" /> 
</bean>