我正在尝试从LDAP服务器检索数据,但它失败了. (连接工程).我很难理解最后一行中search()方法需要哪些参数……

“mail”是我想要获取的信息,userName是经过身份验证的用户.

DirContext authContext = new InitialDirContext(authEnv);

SearchControls constraints = new SearchControls();

constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);

NamingEnumeration results = authContext.search("mail",userName,constraints);

这是我的错误消息(在最后一行出现)：

javax.naming.directory.InvalidSearchFilterException: Missing 'equals'; remaining name 'mail'

at com.sun.jndi.ldap.Filter.encodeSimpleFilter(Unknown Source)

at com.sun.jndi.ldap.Filter.encodeFilter(Unknown Source)

at com.sun.jndi.ldap.Filter.encodeFilterString(Unknown Source)

at com.sun.jndi.ldap.LdapClient.search(Unknown Source)

at com.sun.jndi.ldap.LdapCtx.doSearch(Unknown Source)

at com.sun.jndi.ldap.LdapCtx.searchAux(Unknown Source)

at com.sun.jndi.ldap.LdapCtx.c_search(Unknown Source)

at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_search(Unknown Source)

at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(Unknown Source)

at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(Unknown Source)

at javax.naming.directory.InitialDirContext.search(Unknown Source)

at Client.connect(Client.java:48)

at Client.main(Client.java:23)

感谢所有答案,如果我按要求更改我的代码,我会收到以下错误：

javax.naming.NamingException: [LDAP: error code 1 - 000004DC: LdapErr: DSID-0C0906E9,comment: In order to perform this operation a successful bind must be completed on the

connection.,data 0,v1db1

我的连接代码就是这个：

Properties authEnv = new Properties();

String userName = "XXX";

String passWord = "XXX";

String base = "XXX";

String dn = "uid=" + userName + "," + base;

String ldapURL = "XXX";

authEnv.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");

authEnv.put(Context.PROVIDER_URL,ldapURL);

authEnv.put(Context.SECURITY_AUTHENTICATION,"none");

authEnv.put(Context.SECURITY_PRINCIPAL,dn);

authEnv.put(Context.SECURITY_CREDENTIALS,passWord);