Admin: 1 версия

2010-05-31T14:43:30Z

1 версия

Новая страница

== Context: addToEnvironment(String propName, Object propVal) ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
/**
* Demonstrates how to use different authentication information for one context.
*
* usage: java UseDiff
*/
class UseDiff {
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 {
// 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();
}
}
}

</source>



== Context: close() ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
/**
* Demonstrates how to enable connection pooling. Use debug option to observe
* connection usage.
*
* usage: java -Dcom.sun.jndi.ldap.connect.pool.debug=fine UsePool
*/
class UsePool {
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");
// Enable connection pooling
env.put("com.sun.jndi.ldap.connect.pool", "true");
try {
// Create one initial context (Get connection from pool)
DirContext ctx = new InitialDirContext(env);
System.out.println(ctx.getAttributes("ou=NewHires"));
// do something useful with ctx
// Close the context when we"re done
ctx.close(); // Return connection to pool
// Create another initial context (Get connection from pool)
DirContext ctx2 = new InitialDirContext(env);
System.out.println(ctx2.getAttributes("ou=People"));
// do something useful with ctx2
// Close the context when we"re done
ctx2.close(); // Return connection to pool
} catch (NamingException e) {
e.printStackTrace();
}
}
}

</source>



== Context: createSubcontext(String name) ==



<source lang="java">

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
public class Main {
public static void main(String[] argv) throws Exception {
String url = "iiop://localhost/";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, url);
Context ctx = new InitialContext(env);
// Create a subcontext.
Context childCtx = ctx.createSubcontext("child");
// Destroy the subcontext.
ctx.destroySubcontext("child");
Context obj = (Context) childCtx.lookup("grandChild");
String fullname = obj.getNameInNamespace();
}
}

</source>



== Context: destroySubcontext(String name) ==



<source lang="java">

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
public class Main {
public static void main(String[] argv) throws Exception {
String url = "iiop://localhost/";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, url);
Context ctx = new InitialContext(env);
// Create a subcontext.
Context childCtx = ctx.createSubcontext("child");
// Destroy the subcontext.
ctx.destroySubcontext("child");
Context obj = (Context) childCtx.lookup("grandChild");
String fullname = obj.getNameInNamespace();
}
}

</source>



== Context: getNameInNamespace() ==



<source lang="java">

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
public class Main {
public static void main(String[] argv) throws Exception {
String url = "iiop://localhost/";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, url);
Context ctx = new InitialContext(env);
// Create a subcontext.
Context childCtx = ctx.createSubcontext("child");
// Destroy the subcontext.
ctx.destroySubcontext("child");
Context obj = (Context) childCtx.lookup("grandChild");
String fullname = obj.getNameInNamespace();
}
}

</source>



== Context: getNameParser(String name) ==



<source lang="java">

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.naming.NameParser;
public class Main {
public static void main(String[] argv) throws Exception {
String url = "iiop://localhost/";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, url);
Context ctx = new InitialContext(env);
NameParser parser = ctx.getNameParser("");
Name dn = parser.parse("cn=John, ou=People, o=JNDITutorial");
dn.remove(1);
dn.add(0, "c=us");
dn.add("cn=fs");
}
}

</source>



== Context.INITIAL_CONTEXT_FACTORY ==



<source lang="java">

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.ConnectionPoolDataSource;
import javax.sql.PooledConnection;
public class PooledConnectionExample {
public static void main(String[] args) {
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try {
connection = getConnection();
statement = connection.createStatement();
String selectEmployeesSQL = "SELECT * FROM employees";
resultSet = statement.executeQuery(selectEmployeesSQL);
while (resultSet.next()) {
printEmployee(resultSet);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
closeAll(resultSet, statement, connection);
}
}
//Obtain connection from pool
private static Connection getConnection() throws NamingException, SQLException {
InitialContext initCtx = createContext();
String jndiName = "HrDS";
ConnectionPoolDataSource dataSource = (ConnectionPoolDataSource) initCtx.lookup(jndiName);
PooledConnection pooledConnection = dataSource.getPooledConnection();
return pooledConnection.getConnection();
}
private static InitialContext createContext() throws NamingException {
Properties env = new Properties();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.rmi.registry.RegistryContextFactory");
env.put(Context.PROVIDER_URL, "rmi://localhost:1099");
InitialContext context = new InitialContext(env);
return context;
}
private static void printEmployee(ResultSet resultSet) throws SQLException {
System.out.print(resultSet.getInt("employee_id"));
System.out.print(", ");
System.out.print(resultSet.getString("last_name"));
System.out.print(", ");
System.out.print(resultSet.getString("first_name"));
System.out.print(", ");
System.out.println(resultSet.getString("email"));
}
private static void closeAll(ResultSet resultSet, Statement statement, Connection connection) {
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException e) {
} // nothing we can do
}
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {
} // nothing we can do
}
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
} // nothing we can do
}
}
}

</source>



== Context: listBindings(String name) ==



<source lang="java">

import java.io.IOException;
import java.io.PrintWriter;
import javax.naming.Binding;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class EnvEntry extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
IOException {
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
try {
Context initCtx = new InitialContext();
NamingEnumeration e = initCtx.listBindings("java:comp/env");
while (e.hasMore()) {
Binding binding = (Binding) e.next();
out.println("Name: " + binding.getName());
out.println("Type: " + binding.getClassName());
out.println("Value: " + binding.getObject());
out.println();
}
} catch (NamingException e) {
e.printStackTrace(out);
}
}
}

</source>



== Context: lookup(String name) ==



<source lang="java">

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
public class Main {
public static void main(String[] argv) throws Exception {
String url = "iiop://localhost/";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, url);
Context ctx = new InitialContext(env);
// Create a subcontext.
Context childCtx = ctx.createSubcontext("child");
// Destroy the subcontext.
ctx.destroySubcontext("child");
Context obj = (Context) childCtx.lookup("grandChild");
String fullname = obj.getNameInNamespace();
}
}

</source>



== Context.PROVIDER_URL ==



<source lang="java">

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.ConnectionPoolDataSource;
import javax.sql.PooledConnection;
public class PooledConnectionExample {
public static void main(String[] args) {
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try {
connection = getConnection();
statement = connection.createStatement();
String selectEmployeesSQL = "SELECT * FROM employees";
resultSet = statement.executeQuery(selectEmployeesSQL);
while (resultSet.next()) {
printEmployee(resultSet);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
closeAll(resultSet, statement, connection);
}
}
//Obtain connection from pool
private static Connection getConnection() throws NamingException, SQLException {
InitialContext initCtx = createContext();
String jndiName = "HrDS";
ConnectionPoolDataSource dataSource = (ConnectionPoolDataSource) initCtx.lookup(jndiName);
PooledConnection pooledConnection = dataSource.getPooledConnection();
return pooledConnection.getConnection();
}
private static InitialContext createContext() throws NamingException {
Properties env = new Properties();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.rmi.registry.RegistryContextFactory");
env.put(Context.PROVIDER_URL, "rmi://localhost:1099");
InitialContext context = new InitialContext(env);
return context;
}
private static void printEmployee(ResultSet resultSet) throws SQLException {
System.out.print(resultSet.getInt("employee_id"));
System.out.print(", ");
System.out.print(resultSet.getString("last_name"));
System.out.print(", ");
System.out.print(resultSet.getString("first_name"));
System.out.print(", ");
System.out.println(resultSet.getString("email"));
}
private static void closeAll(ResultSet resultSet, Statement statement, Connection connection) {
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException e) {
} // nothing we can do
}
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {
} // nothing we can do
}
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
} // nothing we can do
}
}
}

</source>



== Context: rename(String oldName, String newName) ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
/**
* Demonstrates how to rename an entry to another part of the namespace.
*
* usage: java RenameDiffParent
*/
class RenameDiffParent {
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 {
// 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();
}
}
}

</source>



== Context.SECURITY_AUTHENTICATION ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
/**
* Demonstrates how failure to supply correct authentication information fails.
*
* usage: java BadPasswd
*/
class BadPasswd {
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 give incorrect password
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL,
"cn=S. User, ou=NewHires, o=JNDITutorial");
env.put(Context.SECURITY_CREDENTIALS, "notmysecret");
try {
// 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();
}
}
}

</source>



== Context.SECURITY_CREDENTIALS ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
/**
* Demonstrates how failure to supply correct authentication information fails.
*
* usage: java BadPasswd
*/
class BadPasswd {
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 give incorrect password
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL,
"cn=S. User, ou=NewHires, o=JNDITutorial");
env.put(Context.SECURITY_CREDENTIALS, "notmysecret");
try {
// 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();
}
}
}

</source>



== Context.SECURITY_PRINCIPAL ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
/**
* Demonstrates how failure to supply correct authentication information fails.
*
* usage: java BadPasswd
*/
class BadPasswd {
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 give incorrect password
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL,
"cn=S. User, ou=NewHires, o=JNDITutorial");
env.put(Context.SECURITY_CREDENTIALS, "notmysecret");
try {
// 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();
}
}
}

</source>



== Context: unbind(String name) ==



<source lang="java">

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
public class Main {
public static void main(String[] argv) throws Exception {
String url = "iiop://localhost/";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, url);
Context ctx = new InitialContext(env);
// Add a binding.
ctx.bind("Name", null);
// Replace a binding.
ctx.rebind("Name", null);
// Remove a binding.
ctx.unbind("Name");
// Rename a binding.
ctx.rename("Name", "NewSample");
}
}

</source>

Java by API/javax.naming/Context - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия

← Предыдущая	Версия 17:43, 31 мая 2010
(нет различий)