Example usage for java.util Hashtable Hashtable

Introduction

In this page you can find the example usage for java.util Hashtable Hashtable.

Prototype

Hashtable(Void dummy) 

Source Link

Document

A constructor chained from Properties keeps Hashtable fields uninitialized since they are not used.

Usage

From source file:ListBindings.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    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/o=JNDITutorial");

    try {/*  w  w  w . ja  v a2 s.com*/
        // Create the initial context
        Context ctx = new InitialContext(env);

        // Get listing of context
        NamingEnumeration bindings = ctx.listBindings("ou=People");

        // Go through each item in list
        while (bindings.hasMore()) {
            Binding bd = (Binding) bindings.next();
            System.out.println(bd.getName() + ": " + bd.getObject());
        }

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        System.out.println("List Bindings failed: " + e);
    }
}

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From source file:UseDiff.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    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/o=JNDITutorial");

    // Authenticate as S. User and password "mysecret"
    env.put(Context.SECURITY_AUTHENTICATION, "simple");
    env.put(Context.SECURITY_PRINCIPAL, "cn=S. User, ou=NewHires, o=JNDITutorial");
    env.put(Context.SECURITY_CREDENTIALS, "mysecret");

    try {/*from w w w.j a  v  a2s.c o  m*/
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        // do something useful with ctx
        System.out.println(ctx.lookup("ou=NewHires"));

        // Change to using no authentication
        ctx.addToEnvironment(Context.SECURITY_AUTHENTICATION, "none");

        System.out.println(ctx.lookup("ou=NewHires"));

        // do something useful with ctx

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:List.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    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/o=JNDITutorial");

    try {//from ww w  .  j av  a2s  .  c o m
        // Create the initial context
        Context ctx = new InitialContext(env);

        // Get listing of context
        NamingEnumeration list = ctx.list("ou=People");

        // Go through each item in list
        while (list.hasMore()) {
            NameClassPair nc = (NameClassPair) list.next();
            System.out.println(nc);
        }

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        System.out.println("List failed: " + e);
    }
}

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From source file:NewConn.java

public static void main(String[] args) {
    // Set up environment for creating initial context
    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/o=JNDITutorial");

    try {//from w  ww . j a v  a  2 s  .com
        // Create initial context (first connection)
        DirContext ctx = new InitialDirContext(env);

        // Get a copy of the same context
        DirContext ctx2 = (DirContext) ctx.lookup("");

        // Change authentication properties in ctx2
        ctx2.addToEnvironment(Context.SECURITY_PRINCIPAL, "cn=C. User, ou=NewHires, o=JNDITutorial");
        ctx2.addToEnvironment(Context.SECURITY_CREDENTIALS, "mysecret");

        // Method on ctx2 will use new connection
        System.out.println(ctx2.getAttributes("ou=NewHires"));

        // Close the contexts when we're done
        ctx.close();
        ctx2.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:RenameDiffParent.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    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/o=JNDITutorial");

    try {/*from   w w  w .java2s. c o m*/
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        // Perform rename
        ctx.rename("cn=C. User, ou=NewHires", "cn=C. User, ou=People");

        // Check that it worked
        System.out.println(ctx.lookup("cn=C. User, ou=People"));

        // Revert change
        ctx.rename("cn=C. User, ou=People", "cn=C. User, ou=NewHires");

        // Check that we are back at our original setup
        System.out.println(ctx.lookup("cn=C. User, ou=NewHires"));

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:RenameKeepRDN.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    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/o=JNDITutorial");

    // Set property to keep RDN
    env.put("java.naming.ldap.deleteRDN", "false");

    try {/*from   w  w w.j ava2 s .  c  o m*/
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        // Perform rename
        ctx.rename("cn=C. User, ou=NewHires", "cn=Claude User,ou=NewHires");

        // Check that it worked
        System.out.println(ctx.getAttributes("cn=Claude User,ou=NewHires"));

        // Revert change
        // Make sure new name doesn't get converted into attribute

        ctx.removeFromEnvironment("java.naming.ldap.deleteRDN");
        ctx.rename("cn=Claude User, ou=NewHires", "cn=C. User,ou=NewHires");

        // Check that we are back at our original setup
        System.out.println(ctx.getAttributes("cn=C. User,ou=NewHires"));

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:None.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    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/o=JNDITutorial");

    // Use anonymous authentication
    env.put(Context.SECURITY_AUTHENTICATION, "none");

    try {//from   www  .  j  a  v a 2 s . c o m
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        System.out.println(ctx.lookup("ou=NewHires"));

        // do something useful with ctx

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:Digest.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    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/o=JNDITutorial");

    // Authenticate as C. User and password "mysecret"
    env.put(Context.SECURITY_AUTHENTICATION, "DIGEST-MD5");

    env.put(Context.SECURITY_PRINCIPAL, "dn:cn=C. User, ou=NewHires, o=JNDITutorial");
    env.put(Context.SECURITY_CREDENTIALS, "mysecret");

    env.put("com.sun.jndi.ldap.trace.ber", System.out);

    try {/*from  ww w  . j av  a  2s  . com*/
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        System.out.println(ctx.lookup("ou=NewHires"));

        // do something useful with ctx

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:Destroy.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    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/o=JNDITutorial");

    try {// w  ww .j  a  v a 2s  .  c  o  m
        // Create the initial context
        Context ctx = new InitialContext(env);

        // Destroy the context
        ctx.destroySubcontext("ou=NewOu");

        // Check that it has been destroyed by listing its parent
        NamingEnumeration list = ctx.list("");

        // Go through each item in list
        while (list.hasMore()) {
            NameClassPair nc = (NameClassPair) list.next();
            System.out.println(nc);
        }

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        System.out.println("destroy failed: " + e);
    }
}

---

From source file:DigestRealm.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    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/o=JNDITutorial");

    // Authenticate as C. User and password "mysecret" in realm "JNDITutorial"
    env.put(Context.SECURITY_AUTHENTICATION, "DIGEST-MD5");

    env.put(Context.SECURITY_PRINCIPAL, "dn:cn=C. User, ou=NewHires, o=JNDITutorial");
    env.put(Context.SECURITY_CREDENTIALS, "mysecret");
    env.put("java.naming.security.sasl.realm", "JNDITutorial");

    try {//  www  .  ja  v a  2  s.c  om
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        System.out.println(ctx.lookup("ou=NewHires"));

        // do something useful with ctx

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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