Java实现LDAP登录-工具盒子

　　LDAP的全称是Lightweight Directory Access Protocol（轻量级目录访问协议），是一种用于访问和管理分布式目录信息服务的应用协议。LDAP通常用于存储用户、组和其他组织信息，提供对这些信息的快速查询和管理。
　　LDAP 是基于X.500标准的一个简化版本，使用更简单的网络协议（如 TCP/IP）来实现，定义了客户端如何与目录服务交互，如添加、删除、修改或查询目录信息。
例:
Java原生支持LDAP协议，通过管理员账户adminDn，adminPassword连接LDAP服务器，并搜索用户的DN，验证用户凭据，再检查输入的密码是否正确。使用SSL加密(ldaps://)时，要提前安装证书到jdk的信任目录内

import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
import java.io.InputStream;
import java.util.Hashtable;
import java.util.Map;
import lombok.extern.slf4j.Slf4j;
@Slf4j
public class LdapVerify {
&lt;span class=&quot;token keyword&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;boolean&lt;/span&gt; &lt;span class=&quot;token function&quot;&gt;connehct&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; username&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; password&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;{&lt;/span&gt;

    &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; ip &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; port &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; timeOut &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; adminDn &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; adminPassword &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; url &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;format&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;ldaps://%s:%s&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; ip&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; port&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;


    &lt;span class=&quot;token comment&quot;&gt;// 1. 建立与 LDAP 的连接&lt;/span&gt;
    &lt;span class=&quot;token class-name&quot;&gt;Hashtable&lt;/span&gt;&lt;span class=&quot;token generics&quot;&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt; env &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;Hashtable&lt;/span&gt;&lt;span class=&quot;token generics&quot;&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;INITIAL_CONTEXT_FACTORY&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;com.sun.jndi.ldap.LdapCtxFactory&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;PROVIDER_URL&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; url&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_AUTHENTICATION&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;simple&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_PRINCIPAL&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; adminDn&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_CREDENTIALS&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; adminPassword&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_PROTOCOL&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;ssl&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt; &lt;span class=&quot;token comment&quot;&gt;// 启用 LDAPS&lt;/span&gt;
    env&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;com.sun.jndi.ldap.connect.timeout&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;3000&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

    &lt;span class=&quot;token keyword&quot;&gt;try&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;{&lt;/span&gt;
        &lt;span class=&quot;token class-name&quot;&gt;LdapContext&lt;/span&gt; ldapContext &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;InitialLdapContext&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;env&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

        &lt;span class=&quot;token comment&quot;&gt;// 2. 查找用户的完整 DN&lt;/span&gt;
        &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; searchBase &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;OU=All Users,DC=demo,DC=com&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt; &lt;span class=&quot;token comment&quot;&gt;// 搜索起点&lt;/span&gt;
        &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; searchFilter &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;(sAMAccountName=&quot;&lt;/span&gt; &lt;span class=&quot;token operator&quot;&gt;+&lt;/span&gt; username &lt;span class=&quot;token operator&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;)&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt; &lt;span class=&quot;token comment&quot;&gt;// 根据用户名查找&lt;/span&gt;
        &lt;span class=&quot;token class-name&quot;&gt;SearchControls&lt;/span&gt; searchControls &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;SearchControls&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
        searchControls&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;setSearchScope&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;SearchControls&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SUBTREE_SCOPE&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

        &lt;span class=&quot;token class-name&quot;&gt;NamingEnumeration&lt;/span&gt;&lt;span class=&quot;token generics&quot;&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;SearchResult&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt; results &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; ldapContext&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;search&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;searchBase&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; searchFilter&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; searchControls&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
        &lt;span class=&quot;token keyword&quot;&gt;if&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;results&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;hasMore&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;{&lt;/span&gt;
            &lt;span class=&quot;token class-name&quot;&gt;SearchResult&lt;/span&gt; result &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; results&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;next&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt; userDn &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; result&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;getNameInNamespace&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            log&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;info&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;LDAP登录, 找到用户 DN: &quot;&lt;/span&gt; &lt;span class=&quot;token operator&quot;&gt;+&lt;/span&gt; userDn&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

            &lt;span class=&quot;token comment&quot;&gt;// 3. 验证用户密码&lt;/span&gt;
            &lt;span class=&quot;token class-name&quot;&gt;Hashtable&lt;/span&gt;&lt;span class=&quot;token generics&quot;&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt; userEnv &lt;span class=&quot;token operator&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;Hashtable&lt;/span&gt;&lt;span class=&quot;token generics&quot;&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;INITIAL_CONTEXT_FACTORY&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;com.sun.jndi.ldap.LdapCtxFactory&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;PROVIDER_URL&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; url&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_AUTHENTICATION&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;simple&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_PRINCIPAL&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; userDn&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_CREDENTIALS&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; password&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Context&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token constant&quot;&gt;SECURITY_PROTOCOL&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;ssl&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            userEnv&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;put&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;com.sun.jndi.ldap.connect.timeout&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token string&quot;&gt;&quot;3000&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

            &lt;span class=&quot;token keyword&quot;&gt;try&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;{&lt;/span&gt;
                &lt;span class=&quot;token keyword&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;token class-name&quot;&gt;InitialLdapContext&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;userEnv&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;token keyword&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;close&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
                log&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;info&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;LDAP登录, 用户验证成功 {}&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; username&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
                &lt;span class=&quot;token keyword&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;token boolean&quot;&gt;true&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            &lt;span class=&quot;token punctuation&quot;&gt;}&lt;/span&gt;
            &lt;span class=&quot;token keyword&quot;&gt;catch&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;Exception&lt;/span&gt; e&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;{&lt;/span&gt;
                log&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;error&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;LDAP登录, 用户验证失败&quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; username&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
                &lt;span class=&quot;token keyword&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;token boolean&quot;&gt;false&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
            &lt;span class=&quot;token punctuation&quot;&gt;}&lt;/span&gt;

        &lt;span class=&quot;token punctuation&quot;&gt;}&lt;/span&gt;

        log&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;error&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;LDAP登录, 找不到用户 DN {} &quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; username&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

        &lt;span class=&quot;token keyword&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;token boolean&quot;&gt;false&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;

    &lt;span class=&quot;token punctuation&quot;&gt;}&lt;/span&gt;
    &lt;span class=&quot;token keyword&quot;&gt;catch&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token class-name&quot;&gt;NamingException&lt;/span&gt; e&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;token punctuation&quot;&gt;{&lt;/span&gt;
        log&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;error&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token string&quot;&gt;&quot;LDAP登录, 找用户异常 DN {} {} &quot;&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; username&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; e&lt;span class=&quot;token punctuation&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;token function&quot;&gt;getMessage&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;,&lt;/span&gt; e&lt;span class=&quot;token punctuation&quot;&gt;)&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
        &lt;span class=&quot;token keyword&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;token boolean&quot;&gt;false&lt;/span&gt;&lt;span class=&quot;token punctuation&quot;&gt;;&lt;/span&gt;
    &lt;span class=&quot;token punctuation&quot;&gt;}&lt;/span&gt;

&lt;span class=&quot;token punctuation&quot;&gt;}&lt;/span&gt;

}
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