LDAP《三》

LDAP

下面是我在网上找的关于Java+LDAP的2个例子：
dc=ibm,dc=com
ou=developer,dc=ibm,dc=com
ou=tester,dc=ibm,dc=com
uid=bill,ou=developer,dc=ibm,dc=com
uid=kent,ou=tester,dc=ibm,dc=com

OpenLDAP的配置方法:

1, 安装.

2, 修改slapd.conf, 更改suffix和root dn. 重启instance. 如果是windows,则重启service.

3, 创建ldif文件, 写入要往ldap中添加的entry. 可以参考openLDAP目录下给的example.

4, 执行添加任务. 如果存在ldapadd,则运行”ldapadd -x -D “bindDN” -w password -f xxx.ldif”. 如果没有,则使用slapdadd. “slapadd -v -l xxx.ldif”. 记住,执行slapdadd之前,要先停掉ldap.

5, 在Base DN下搜用户 ldapsearch -b “ou=tester,dc=ibm,dc=com “(uid=bi*)”

JAVA操作LDAP:

Official Guide：http://docs.oracle.com/javase/jndi/tutorial/getStarted/examples/directory.html

使用JAVA自带方法，添加修改查询并删除下面的记录
uid=test,ou=tester,dc=ibm,dc=com

执行类

public class TestLdap {
    public static void main(String[] args) throws NamingException {
        Ldap ldap = Factory.createInstance();

        ldap.connect();
        try {
            // add uid=test,ou=tester,dc=ibm,dc=com
            ldap.add();
            // search uid=test
            ldap.search();
            // update cn with new value of "changed name"
            ldap.update();
            // search uid=test to see cn value.
            ldap.search();
            // delete uid=test,ou=tester,dc=ibm,dc=com
            ldap.delete();
            // search again.
            ldap.search();
        } finally {
            ldap.close();
        }
    }
}
接口

public interface Ldap {
    public void connect() throws NamingException;
    public void search() throws NamingException;
    public void update() throws NamingException;
    public void add() throws NamingException;
    public void delete() throws NamingException;
    public void close() throws NamingException;
}
静态工厂模式


public class Factory {
    private static Ldap instance;
    public synchronized static Ldap createInstance() {
        if (instance == null) {
            try {
                instance = (Ldap) Class.forName("ldap.LdapImpl").newInstance();
            } catch (Exception e) {
                throw new RuntimeException(e);
            } 
        }
        return instance;
    }
}
接口实现

public class LdapImpl implements Ldap {
    private DirContext ds;

    @Override
    public void search() throws NamingException {
        System.out.println("Searching...");
        SearchControls searchCtls = new SearchControls();

        // Specify the search scope
        searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
        // specify the LDAP search filter
        String searchFilter = "uid=test";

        // Specify the Base for the search
        String searchBase = "dc=ibm,dc=com";

        // Specify the attributes to return
        String returnedAtts[] = { "cn" };
        searchCtls.setReturningAttributes(returnedAtts);

        // Search for objects using the filter
        NamingEnumeration<SearchResult> entries = ds.search(searchBase,
                searchFilter, searchCtls);

        // Loop through the search results
        while (entries.hasMoreElements()) {
            SearchResult entry = entries.next();
            System.out.println(">>>" + entry.getName());
            // Print out the groups
            Attributes attrs = entry.getAttributes();
            if (attrs != null) {
                for (NamingEnumeration<? extends Attribute> names = attrs
                        .getAll(); names.hasMore();) {
                    Attribute attr = names.next();
                    System.out.println("AttributeID: " + attr.getID());
                    for (NamingEnumeration<?> e = attr.getAll(); e.hasMore();) {
                        System.out.println("Attributes:" + e.next());
                    }
                }
            }
        }
        System.out.println("Search complete.");
    }

    @Override
    public void update() throws NamingException {
        System.out.println("Updating...");
         ModificationItem[] mods = new ModificationItem[1];
         Attribute attr = new BasicAttribute("cn", "changed value");

         // Support add, replace and remove an attribute.
         mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, attr);
         ds.modifyAttributes("uid=test,ou=tester,dc=ibm,dc=com", mods);
        System.out.println("Updated.");
    }

    @Override
    public void add() throws NamingException {
        System.out.println("Adding...");
        Attributes attrs = new BasicAttributes();
        attrs.put("uid", "test");
        attrs.put("sn", "test");
        attrs.put("cn", "test test");
        attrs.put("userPassword", "111111".getBytes());
        // the following attribute has two values
        Attribute objclass = new BasicAttribute("objectClass");
        objclass.add("inetOrgPerson");
        attrs.put(objclass);

        this.ds.createSubcontext("uid=test,ou=tester,dc=ibm,dc=com", attrs);
        System.out.println("Add complete.");
    }

    @Override
    public void delete() throws NamingException {
        System.out.println("Deleting...");
        this.ds.destroySubcontext("uid=test,ou=tester,dc=ibm,dc=com");
        System.out.println("Deleted.");
    }

    @Override
    public synchronized void connect() throws NamingException {
        System.out.println("connecting...");
        if (ds == null) {
            Hashtable<String, Object> env = new Hashtable<String, Object>(11);
            env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
            env.put(Context.PROVIDER_URL, "ldap://localhost:389");
            env.put(Context.SECURITY_AUTHENTICATION, "simple");
            env.put(Context.SECURITY_PRINCIPAL, "cn=Manager,dc=ibm,dc=com");
            env.put(Context.SECURITY_CREDENTIALS, "secret");

            ds = new InitialDirContext(env);
            // ds = (DirContext) initial.lookup("ldap://localhost:389");
        }
        System.out.println("connected.");
    }

    @Override
    public void close() throws NamingException {
        System.out.println("closing...");
        ds.close();
        System.out.println("closed.");
    }

}

比如administrator这个用户的dn就是cn=administrator,cn=users,dc=ds-66,dc=com(简单来说就是全路径+域的形式)
最后就可以编码了，连接的代码比较简单，使用fliter的查询部门稍微复杂点，不过仔细看看也很容易理解，如下。
[java] view plaincopy在CODE上查看代码片派生到我的代码片

public static void main(String[] args) {  
    String url = "ldap://10.1.0.66:389/";  
    String domain = "dc=ds-66,dc=com";  
    String user = "cn=administrator,cn=users";  
    String password = "111111";  
    Hashtable<String, String> env = new Hashtable<String, String>();  
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); // LDAP 工厂 
    env.put(Context.SECURITY_AUTHENTICATION, "simple"); // LDAP访问安全级别 
    env.put(Context.PROVIDER_URL, url);  
    env.put(Context.SECURITY_PRINCIPAL, user+","+domain); // 填DN 
    env.put(Context.SECURITY_CREDENTIALS, password); // AD Password 
    env.put("java.naming.ldap.attributes.binary", "objectSid objectGUID");  
    LdapContext ldapCtx = null;  
    try {  
        ldapCtx = new InitialLdapContext(env , null);  
        queryGroup(ldapCtx);  
        //queryUser(ldapCtx); 

    } catch (NamingException e) {  
        e.printStackTrace();  
    } finally {  
        if(ldapCtx != null) {  
            try {  
                ldapCtx.close();  
            } catch (NamingException e) {  
            }  
        }  
    }  
}  

private static void queryGroup(LdapContext ldapCtx) throws NamingException {  
    SearchControls searchCtls = new SearchControls();  
    searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);  
    String searchFilter = "objectClass=organizationalUnit";  
    String searchBase = "ou=myDeptSubDept,ou=myDept,dc=DS-66,dc=com";  
    String returnedAtts[] = {"distinguishedName", "objectGUID", "name"};  
    searchCtls.setReturningAttributes(returnedAtts);  
    NamingEnumeration<SearchResult> answer = ldapCtx.search(searchBase, searchFilter, searchCtls);  
    while (answer.hasMoreElements()) {  
        SearchResult sr = answer.next();  
        Attributes Attrs = sr.getAttributes();  
        if (Attrs != null) {  
            NamingEnumeration<?> ne = Attrs.getAll();  
            while(ne.hasMore()) {  
                Attribute Attr = (Attribute)ne.next();  
                String name = Attr.getID();  
                Enumeration<?> values = Attr.getAll();  
                if (values != null) { // 迭代 
                    while (values.hasMoreElements()) {  
                        String value = "";  
                        if("objectGUID".equals(name)) {  
                            value = UUID.nameUUIDFromBytes((byte[]) values.nextElement()).toString();  
                        } else {  
                            value = (String)values.nextElement();  
                        }  
                        System.out.println(name + " " + value);  
                    }  
                }  
            }  
            System.out.println("=====================");  
        }  
    }  

}