这里面包含了一百多个JAVA源文件

				This example uses the JNDI/LDAP service provider to connect to an LDAP server on the local machine. It sets the context's request controls to be a server-side Sort control and then performs a list(). The results of list() will be sorted. 
				    try {
				        LdapContext ctx = new InitialLdapContext(env, null);
				    
				        // Create critical Sort that sorts based on CN
				        Control[] ctxCtls = new Control[]{
				            new SortControl(new String[]{"cn"}, Control.CRITICAL)
				        };
				    
				        // Sets context request controls; effect until unset
				        ctx.setRequestControls(ctxCtls);
				    
				        // Perform list() with controls in effect
				        NamingEnumeration answer = ctx.list("");
				    
				        // Enumerate answers
				        while (answer.hasMore()) {
				            NameClassPair item = (NameClassPair)answer.next();
				        }
				    } catch (NamingException e) {
				    }