关于LDAP连接的问题

Question

先贴一下代码：
    private LdapContext getContext() throws NamingException {  
            LdapCtxFactory lcf = new com.sun.jndi.ldap.LdapCtxFactory();
            return (LdapContext) lcf.getInitialContext(lc.getSysProperties());
    }
    public String getLdapAttrFromDn(String strDn,String strattr)
    {
            SearchControls constraints = new SearchControls();
            LdapContext context = null;
            Attributes attrs = null;
            String strmail = "";
            try{       
                    context = getContext();
                    constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);
                    String myFilter = "(&(objectclass=InetOrgPerson)(uid=" + strDn + "))";;
                    NamingEnumeration results = (NamingEnumeration) context.search("dc=unicom",
                                    myFilter, constraints);
                    if (results != null && results.hasMore()) {
                            SearchResult si = (SearchResult)results.next();
                            attrs = si.getAttributes();
                            Attribute arr = attrs.get(strattr);
                            if(arr != null){
                                    strmail = (String)arr.get();
                                    strmail = strmail.substring(0, strmail.indexOf("@"));
                            }
                    }
            }catch(Exception ex){
                    //System.out.println("======search getLdapAttrFromDn Ldap==ex====================="+ex);
            }
            finally
            {               
                    if (context != null) {
                            try {
                                    context.close();
                                    context = null;
                            } catch (NamingException e) {
                                    System.out.println(e.getMessage());
                            }                    }
            }
            return strmail;
    }我在getLdapAttrFromDn里面已经关闭了连接，但是压力测试时，发现连接并没有释放。各位高手，请指导一下~~谢谢了

Answer 1

补充一下，程序是部署在WAS5上面的