近段时间接触了一个项目,用户认证部分是通过域认证的方式,我们的项目是用Java语言开发的,在以前从未接触过这方面的知识,首先了解了这个域的概念,然后去看这个域到低是个什么样的东西.登录到域服务器,一看,哦,原来是一活动目录(Active Directory),这下看到了它的全部面目,通过查询,还看到了我的名字也在这个域服务器上,顿时感觉到很新奇,再后来又知道了,域服务器除了AD,之外还有专门的服务器Open Ldap,还有其它的几个,在这里我就不写了,基本知道了这些东西后,通过查资料,知道了spring ldap 已很好的支持对域服务器的访问,我们的项目也采用了Spring 框架,于是下载了Spring-Ldap 1.3 这个版本的所有文档,开始研究,基本上还都能看懂,最主要是有例子,最终也通过写程序实现了,但我想通过Spring 的配置来实现,但在文档中没有找到相关说明,用户登录的信息肯定是动态的,如果只把用户名和密码配置在Spring 的配置文件中,通过这个配置也能查询其它用户信息,但毕竟不是最好的办法,后来通过仔细的研究,发现可以通过实现AuthenticationSource接口,动态的注入用户名和密码,总体的实现方式如下:

<!-- spring ldap source配置 -->
  <bean id="ContextSource" class="org.springframework.ldap.core.support.LdapContextSource">
   <property name="url" value="ldap://ptr.petrochina:389" />
   <property name="base" value="dc=ptr,dc=petrochina" />
   <property name="referral" value="follow"></property> //让我折腾了很久的地方
  <property name="authenticationSource" ref="AuthenticationSource" />
  </bean>
  <bean id="AuthenticationSource"
   class="org.springframework.ldap.authentication.DefaultValuesAuthenticationSourceDecorator">
   <property name="target" ref="SpringSecurityAuthenticationSource" />
   <property name="defaultUser" value="***@petrochina.com.cn" />
   <property name="defaultPassword" value="***" />
  </bean>
  <bean id="SpringSecurityAuthenticationSource"
   class="com.BRM.right.component.LdapAuthenticationSource" />
  <bean id="LdapTemplate" class="org.springframework.ldap.core.LdapTemplate">
   <constructor-arg ref="ContextSource" />
  </bean><!-- spring ldap source配置结束 -->
实现AuthenticationSource接口
 package com.BRM.right.component;import org.springframework.ldap.core.AuthenticationSource;
public class LdapAuthenticationSource implements AuthenticationSource
 private static ThreadLocal login = new ThreadLocal();
  private static ThreadLocal password = new ThreadLocal(); public static void setLogin(String login) {
   LdapAuthenticationSource.login.set(login);
  } public static void setPassword(String password) {
   LdapAuthenticationSource.password.set(password);
  } public String getPrincipal() {
   String login = (String) LdapAuthenticationSource.login.get();
   if (login == null || "".equals(login)) {
    return null;
   }
   return login;
  } public String getCredentials() {
   String password = (String) LdapAuthenticationSource.password.get();
   if (password == null || "".equals(password)) {
    return null;
   }
   return password;
  }}
记住要设置值:
LdapAuthenticationSource.setLogin(loginForm.getUserName()+"@petrochina.com.cn");
 LdapAuthenticationSource.setPassword(loginForm.getPassword());验证用户密码是否正确的方法:
AndFilter filter = new AndFilter();
   filter.and(new EqualsFilter("userprincipalname", userprincipalname));
   return ldapTemplate.authenticate("", filter.toString(), password);由用户查询结果:
public List findInfoByUserPrincipalName(String userprincipalname) {
   AndFilter filter = new AndFilter();
   // filter.and(new EqualsFilter("objectclass", "*"));
   filter.and(new EqualsFilter("userprincipalname", userprincipalname));  return ldapTemplate.search(DistinguishedName.EMPTY_PATH, filter
     .encode(), new LdapUserMapper());
  } 
实现接口AttributesMapper 
 private class LdapUserMapper implements AttributesMapper {
   public Object mapFromAttributes(Attributes attrs) {
    LdapUserBean user = new LdapUserBean();   String yhm = "", yhmqc = "", email = "", dn = "", szdw = "";
    String[] memberOf = null;
    try {
     yhm = (String) attrs.get("samaccountname").get();
    } catch (Exception e) {
     
    }
    try {
     yhmqc = (String) attrs.get("cn").get();
    } catch (Exception e) {
     
    }   try {
     email = (String) attrs.get("mail").get();
    } catch (Exception e) {
     
    }
    try {
     dn = (String) attrs.get("distinguishedname").get();
    } catch (Exception e) {
     
    }
    try {
     szdw = (String) attrs.get("company").get();
    } catch (Exception e) {
     
    }
    try {
     NamingEnumeration temp = attrs.get("memberof").getAll();
     List list = new ArrayList();
     while (temp.hasMoreElements()) {
      String t = temp.nextElement().toString();
      list.add(t);
     }
     // System.out.println(attrs.get("memberof").getAll());
     if (list != null) {
      memberOf = (String[]) list.toArray(new String[0]);
     }   } catch (Exception e) {
     
    }   user.setYhm(yhm);
    user.setYhmqc(yhmqc);
    user.setEmail(email);
    user.setDisginguishedname(dn);
    user.setSzdw(szdw);
    user.setMemberof(memberOf);
    return user;
   }
  } 
public class LdapUserBean {
  
  private String yhm;
  
  private String yhmqc;
  
  private String szdw;
  
  private String email;
  
  private String bz;
  

  private String disginguishedname;
  

  private String[] memberof; 
  
  private String userprincipalname; //xujzh@petrochina.com.cn public String getYhm() {
   return yhm;
  } public void setYhm(String yhm) {
   this.yhm = yhm;
  } public String getYhmqc() {
   return yhmqc;
  } public void setYhmqc(String yhmqc) {
   this.yhmqc = yhmqc;
  } public String getSzdw() {
   return szdw;
  } public void setSzdw(String szdw) {
   this.szdw = szdw;
  } public String getEmail() {
   return email;
  } public void setEmail(String email) {
   this.email = email;
  } public String getBz() {
   StringBuffer bs=new StringBuffer();
   for(int i=0;i<memberof.length;i++){
    bs.append(memberof[i]);
   }
   bs.append("用户所在路径:"+disginguishedname);
   this.bz = bs.toString();
   return bz;
  } public void setBz(String bz) {
   this.bz=bz;
  } public String getDisginguishedname() {
   return disginguishedname;
  } public void setDisginguishedname(String disginguishedname) {
   this.disginguishedname = disginguishedname;
  } public String[] getMemberof() {
   return memberof;
  } public void setMemberof(String[] memberof) {
   this.memberof = memberof;
  } public String getUserprincipalname() {
   return userprincipalname;
  } public void setUserprincipalname(String userprincipalname) {
   this.userprincipalname = userprincipalname;
  }
  
  
 }

 

罗列了这么多代码,也算是自己作一个记录吧.当然了还有很多实现方式,只不过这种实现方式自我感觉很良好.总体来说吧自己水平有限,请看到这文章的大侠们多提意见.