proxool配置文件中用户和密码加密

Proxool是一种Java数据库连接池技术。sourceforge下的一个开源项目,这个项目提供一个健壮、易用的连接池，最为关键的是这个连接池提供监控的功能，方便易用，便于发现连接泄漏的情况。

Proxool是一种Java 数据库连接池技术。sourceforge下的一个开源项目,这个项目提供一个健壮、易用的 连接池，最为关键的是这个连接池提供监控的功能，方便易用，便于发现连接泄漏的情况。

目前是和DBCP以及C3P0一起，最为常见的三种JDBC 连接池技术。

日前，Hibernate官方宣布由于Bug太多不再支持DBCP，而推荐使用 Proxool或C3P0。

proxool是个很好的开源连接池。但配置文件中的用户和密码却是明文存储的，如果对系统安全有较高的要求，使用时就麻烦了。昨天下了Proxool 0.9.1的源码，研究了下，做了些小小的改动，现在proxool配置文件中用户和密码可以使用密文存储了，同时明文的也可以正常使用。解密功能部分做成了接口，可以用自己的算法来实现，很方便。

 

先上配置文件proxool.xml

 <?xml version="1.0" encoding="gb2312"?>

 <!-- the proxool configuration can be embedded within your own application's. Anything outside the "proxool" tag is ignored. -->

 <something-else-entirely>
     <proxool>
         <!--连接池的别名-->
         <alias>hdqt</alias>
         <!--实现解密的工具类-->
         <encrypt>cn.bq.tools.DecUtil</encrypt>
         <!--proxool只能管理由自己产生的连接-->
         <driver-url>jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName=xxxx</driver-url>
         <!--JDBC驱动程序-->
         <driver-class>com.microsoft.jdbc.sqlserver.SQLServerDriver</driver-class>
         <driver-properties>
             <!--加密后的用户名和密码-->
             <property name="user" value="da33e8657877280c32683ae317ef78e1"/>
             <property name="password" value="3defde98af47835a74537600eebe78f2"/>
         </driver-properties>
         <!-- proxool自动侦察各个连接状态的时间间隔(毫秒),侦察到空闲的连接就马上回收,超时的销毁-->
         <house-keeping-sleep-time>90000</house-keeping-sleep-time>
         <house-keeping-test-sql>select getdate()</house-keeping-test-sql>
         <!-- 指因未有空闲连接可以分配而在队列中等候的最大请求数,超过这个请求数的用户连接就不会被接受-->
         <!--maximum-new-connections>150</maximum-new-connections-->
     <simultaneous-build-throttle>5</simultaneous-build-throttle>
         <!-- 最少保持的空闲连接数-->
         <prototype-count>3</prototype-count>
         <!-- 允许最大连接数,超过了这个连接，再有请求时，就排在队列中等候，最大的等待请求数由maximum-new-connections决定-->
         <maximum-connection-count>100</maximum-connection-count>
         <!-- 最小连接数-->
         <minimum-connection-count>3</minimum-connection-count>
     </proxool>

 </something-else-entirely>

 

 

proxool.properties配置文件：

 jdbc-0.proxool.alias=property-test
 jdbc-0.encrypt=cn.bq.tools.DecUtil
 jdbc-0.proxool.driver-url=jdbc:sqlserver://127.0.0.1:1433;databaseName=xxxx
 jdbc-0.proxool.driver-class=com.microsoft.jdbc.sqlserver.SQLServerDriver
 jdbc-0.user=da33e8657877280c32683ae317ef78e1
 jdbc-0.password=3defde98af47835a74537600eebe78f2
 jdbc-0.proxool.house-keeping-sleep-time=40000
 jdbc-0.proxool.house-keeping-test-sql=select getdate()
 jdbc-0.proxool.maximum-connection-count=10
 jdbc-0.proxool.minimum-connection-count=3
 jdbc-0.proxool.maximum-connection-lifetime=18000000
 jdbc-0.proxool.simultaneous-build-throttle=5
 jdbc-0.proxool.recently-started-threshold=40000
 jdbc-0.proxool.overload-without-refusal-lifetime=50000
 jdbc-0.proxool.maximum-active-time=60000
 jdbc-0.proxool.verbose=true
 jdbc-0.proxool.trace=true
 jdbc-0.proxool.fatal-sql-exception=Fatal error
 jdbc-0.proxool.prototype-count=2

 

 下面是修改的类：

ProxoolConstants.java

 /*
  * This software is released under a licence similar to the Apache Software Licence.
  * See org.logicalcobwebs.proxool.package.html for details.
  * The latest version is available at http://proxool.sourceforge.net
  */
 package org.logicalcobwebs.proxool;

 /**
  * All constants here please.
  *
  * @version $Revision: 1.21 $, $Date: 2004/06/02 20:39:17 $
  * @author billhorsman
  * @author $Author: billhorsman $ (current maintainer)
  */
 public interface ProxoolConstants {

     public final String PROXOOL = "proxool";

     /**
      * The namespace uri associated with namepace aware Proxool xml configurations.<br>
      * Value: The latest version is available at http://proxool.sourceforge.net/xml-namespace
      */
     public final String PROXOOL_XML_NAMESPACE_URI = "The latest version is available at http://proxool.sourceforge.net/xml-namespace";

     public final String ALIAS_DELIMITER = ".";

     public final String PROPERTY_PREFIX = PROXOOL + ".";

     public final String URL_DELIMITER = ":";

     /** 用户名和密码是否加密，对应值为解密的class*/
     public final String USER_PASSWORD_ENCRYPT = "encrypt";

     /** Standard JDBC property */
     public final String USER_PROPERTY = "user";

     /** Standard JDBC property */
     public final String PASSWORD_PROPERTY = "password";

     /** Used to build up URL */
     public final String ALIAS_PROPERTY = PROPERTY_PREFIX + "alias";

     /** Instead of defining the driver in the url you can also use this property */
     public final String DELEGATE_DRIVER = "driver";

     /** @see ProxoolDriver#getPropertyInfo */
      public final String DELEGATE_DRIVER_PROPERTY = PROPERTY_PREFIX + DELEGATE_DRIVER;

     /** @see #HOUSE_KEEPING_SLEEP_TIME_PROPERTY */
     public final String DELEGATE_URL = "url";

     /** @see ProxoolDriver#getPropertyInfo */
      public final String DELEGATE_URL_PROPERTY = PROPERTY_PREFIX + DELEGATE_URL;

     /** @see #HOUSE_KEEPING_SLEEP_TIME_PROPERTY */
     public final String HOUSE_KEEPING_SLEEP_TIME = "house-keeping-sleep-time";

     /** @see ProxoolDriver#getPropertyInfo */
      public final String HOUSE_KEEPING_SLEEP_TIME_PROPERTY = PROPERTY_PREFIX + HOUSE_KEEPING_SLEEP_TIME;

     /** @see #HOUSE_KEEPING_TEST_SQL_PROPERTY */
     public final String HOUSE_KEEPING_TEST_SQL = "house-keeping-test-sql";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String HOUSE_KEEPING_TEST_SQL_PROPERTY = PROPERTY_PREFIX + HOUSE_KEEPING_TEST_SQL;

     /** @see #TEST_BEFORE_USE_PROPERTY */
     public final String TEST_BEFORE_USE = "test-before-use";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String TEST_BEFORE_USE_PROPERTY = PROPERTY_PREFIX + TEST_BEFORE_USE;

     /** @see #TEST_AFTER_USE_PROPERTY */
     public final String TEST_AFTER_USE = "test-after-use";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String TEST_AFTER_USE_PROPERTY = PROPERTY_PREFIX + TEST_AFTER_USE;

     /** @see #MAXIMUM_CONNECTION_COUNT_PROPERTY */
     public final String MAXIMUM_CONNECTION_COUNT = "maximum-connection-count";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String MAXIMUM_CONNECTION_COUNT_PROPERTY = PROPERTY_PREFIX + MAXIMUM_CONNECTION_COUNT;

     /** @see #MAXIMUM_CONNECTION_LIFETIME_PROPERTY */
     public final String MAXIMUM_CONNECTION_LIFETIME = "maximum-connection-lifetime";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String MAXIMUM_CONNECTION_LIFETIME_PROPERTY = PROPERTY_PREFIX + MAXIMUM_CONNECTION_LIFETIME;

     /**
      * @deprecated use {@link #SIMULTANEOUS_BUILD_THROTTLE} instead
      */
     public final String MAXIMUM_NEW_CONNECTIONS = "maximum-new-connections";

     /**
      * @deprecated use {@link #SIMULTANEOUS_BUILD_THROTTLE_PROPERTY} instead
      */
     public final String MAXIMUM_NEW_CONNECTIONS_PROPERTY = PROPERTY_PREFIX + MAXIMUM_NEW_CONNECTIONS;

     /** @see #SIMULTANEOUS_BUILD_THROTTLE_PROPERTY*/
     public final String SIMULTANEOUS_BUILD_THROTTLE = "simultaneous-build-throttle";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String SIMULTANEOUS_BUILD_THROTTLE_PROPERTY = PROPERTY_PREFIX + SIMULTANEOUS_BUILD_THROTTLE;

     /** @see #MINIMUM_CONNECTION_COUNT_PROPERTY */
     public final String MINIMUM_CONNECTION_COUNT = "minimum-connection-count";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String MINIMUM_CONNECTION_COUNT_PROPERTY = PROPERTY_PREFIX + MINIMUM_CONNECTION_COUNT;

     /** @see #PROTOTYPE_COUNT_PROPERTY */
     public final String PROTOTYPE_COUNT = "prototype-count";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String PROTOTYPE_COUNT_PROPERTY = PROPERTY_PREFIX + PROTOTYPE_COUNT;

     /** @see #RECENTLY_STARTED_THRESHOLD_PROPERTY */
     public final String RECENTLY_STARTED_THRESHOLD = "recently-started-threshold";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String RECENTLY_STARTED_THRESHOLD_PROPERTY = PROPERTY_PREFIX + RECENTLY_STARTED_THRESHOLD;

     /** @see #OVERLOAD_WITHOUT_REFUSAL_LIFETIME_PROPERTY */
     public final String OVERLOAD_WITHOUT_REFUSAL_LIFETIME = "overload-without-refusal-lifetime";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String OVERLOAD_WITHOUT_REFUSAL_LIFETIME_PROPERTY = PROPERTY_PREFIX + OVERLOAD_WITHOUT_REFUSAL_LIFETIME;

     /** @see #MAXIMUM_ACTIVE_TIME_PROPERTY */
     public final String MAXIMUM_ACTIVE_TIME = "maximum-active-time";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String MAXIMUM_ACTIVE_TIME_PROPERTY = PROPERTY_PREFIX + MAXIMUM_ACTIVE_TIME;

     /** @see #INJECTABLE_CONNECTION_INTERFACE_NAME_PROPERTY */
     public final String INJECTABLE_CONNECTION_INTERFACE_NAME = "injectable-connection-interface";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String INJECTABLE_CONNECTION_INTERFACE_NAME_PROPERTY = PROPERTY_PREFIX + INJECTABLE_CONNECTION_INTERFACE_NAME;

     /** @see #INJECTABLE_STATEMENT_INTERFACE_NAME_PROPERTY */
     public final String INJECTABLE_STATEMENT_INTERFACE_NAME = "injectable-statement-interface";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String INJECTABLE_STATEMENT_INTERFACE_NAME_PROPERTY = PROPERTY_PREFIX + INJECTABLE_STATEMENT_INTERFACE_NAME;

     /** @see #INJECTABLE_PREPARED_STATEMENT_INTERFACE_NAME_PROPERTY */
     public final String INJECTABLE_PREPARED_STATEMENT_INTERFACE_NAME = "injectable-prepared-statement-interface";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String INJECTABLE_PREPARED_STATEMENT_INTERFACE_NAME_PROPERTY = PROPERTY_PREFIX + INJECTABLE_PREPARED_STATEMENT_INTERFACE_NAME;

     /** @see #INJECTABLE_CALLABLE_STATEMENT_INTERFACE_NAME_PROPERTY */
     public final String INJECTABLE_CALLABLE_STATEMENT_INTERFACE_NAME = "injectable-callable-statement-interface";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String INJECTABLE_CALLABLE_STATEMENT_INTERFACE_NAME_PROPERTY = PROPERTY_PREFIX + INJECTABLE_CALLABLE_STATEMENT_INTERFACE_NAME;

     /**
      * @deprecated use {@link #VERBOSE_PROPERTY verbose} instead.
      */
     public final String DEBUG_LEVEL_PROPERTY = PROPERTY_PREFIX + "debug-level";

     /** @see #VERBOSE_PROPERTY */
     public final String VERBOSE = "verbose";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String VERBOSE_PROPERTY = PROPERTY_PREFIX + VERBOSE;

     /** @see #TRACE_PROPERTY */
     public final String TRACE = "trace";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String TRACE_PROPERTY = PROPERTY_PREFIX + TRACE;

     /** @see #FATAL_SQL_EXCEPTION_PROPERTY **/
     public final String FATAL_SQL_EXCEPTION = "fatal-sql-exception";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String FATAL_SQL_EXCEPTION_PROPERTY = PROPERTY_PREFIX + FATAL_SQL_EXCEPTION;

     /** @see #FATAL_SQL_EXCEPTION_WRAPPER_CLASS_PROPERTY**/
     public final String FATAL_SQL_EXCEPTION_WRAPPER_CLASS = "fatal-sql-exception-wrapper-class";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String FATAL_SQL_EXCEPTION_WRAPPER_CLASS_PROPERTY = PROPERTY_PREFIX + FATAL_SQL_EXCEPTION_WRAPPER_CLASS;

     public static final String STATISTICS = "statistics";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String STATISTICS_PROPERTY = PROPERTY_PREFIX + STATISTICS;

     public static final String STATISTICS_LOG_LEVEL = "statistics-log-level";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String STATISTICS_LOG_LEVEL_PROPERTY = PROPERTY_PREFIX + STATISTICS_LOG_LEVEL;

     public static final String JNDI_NAME = "jndi-name";

     /** Prefix for generic JNDI properties. */
     public static final String JNDI_PROPERTY_PREFIX = "jndi-";

     /** @see ProxoolDriver#getPropertyInfo */
     public final String JNDI_NAME_PROPERTY = PROPERTY_PREFIX + JNDI_NAME;

 // End JNDI

     public static final String STATISTICS_LOG_LEVEL_TRACE = "TRACE";

     public static final String STATISTICS_LOG_LEVEL_DEBUG = "DEBUG";

     public static final String STATISTICS_LOG_LEVEL_INFO = "INFO";

     /**
      * Element name for the container of properties passed directlry to the delegate driver.
      */
     public static final String DRIVER_PROPERTIES = "driver-properties";


     /**
      * Configuration attribute used to indicate that a pool should be registered with JMX.
      */
     public static final String JMX = "jmx";

     /**
      * "proxool." prefixed version of {@link #JMX}.
      */
     public final String JMX_PROPERTY = PROPERTY_PREFIX + JMX;

     /**
      * Configuration attribute for a list of jmx agent ids to register a
      * {@link org.logicalcobwebs.proxool.admin.jmx.ConnectionPoolMBean} to.
      * The list is comma separated.
      */
     public static final String JMX_AGENT_ID = "jmx-agent-id";

     /**
      * "proxool." prefixed version of {@link #JMX_AGENT_ID}.
      */
     public final String JMX_AGENT_PROPERTY = PROPERTY_PREFIX + JMX_AGENT_ID;

     /**
      *  Un-prefixed propety name for the Proxool alias configuration property. Value: alias
      */
     public final String ALIAS = "alias";

     /**
      *  Un-prefixed propety name for the Proxool driver class  configuration property. Value: driver-class
      */
     public final String DRIVER_CLASS = "driver-class";
     /**
      *  Prefixed propety name for the Proxool driver class  configuration property. Value: proxool.driver-class
      */
     public final String DRIVER_CLASS_PROPERTY = PROPERTY_PREFIX + DRIVER_CLASS;;
     /**
      *  Un-prefixed propety name for the Proxool driver url configuration property. Value: driver-url
      */
     public final String DRIVER_URL = "driver-url";
     /**
      *  Prefixed propety name for the Proxool driver url configuration property. Value: proxool.driver-url
      */
     public final String DRIVER_URL_PROPERTY = PROPERTY_PREFIX + DRIVER_URL;
 }

 /*
  Revision history:
  $Log: ProxoolConstants.java,v $
  Revision 1.21  2004/06/02 20:39:17  billhorsman
  New injectable interface constants

  Revision 1.20  2004/03/15 02:43:47  chr32
  Removed explicit JNDI properties. Going for a generic approach instead.
  Added constant for JNDI properties prefix.

  Revision 1.19  2003/09/30 18:39:08  billhorsman
  New test-before-use, test-after-use and fatal-sql-exception-wrapper-class properties.

  Revision 1.18  2003/09/29 17:48:21  billhorsman
  New fatal-sql-exception-wrapper-class allows you to define what exception is used as a wrapper. This means that you
  can make it a RuntimeException if you need to.

  Revision 1.17  2003/09/05 17:00:42  billhorsman
  New wrap-fatal-sql-exceptions property.

  Revision 1.16  2003/07/23 06:54:48  billhorsman
  draft JNDI changes (shouldn't effect normal operation)

  Revision 1.15  2003/03/05 23:28:56  billhorsman
  deprecated maximum-new-connections property in favour of
  more descriptive simultaneous-build-throttle

  Revision 1.14  2003/03/03 11:11:58  billhorsman
  fixed licence

  Revision 1.13  2003/02/26 16:05:52  billhorsman
  widespread changes caused by refactoring the way we
  update and redefine pool definitions.

  Revision 1.12  2003/02/24 18:02:24  chr32
  Added JMX related constants.

  Revision 1.11  2003/02/24 01:16:15  chr32
  Added constant for "driver-properties" property.

  Revision 1.10  2003/02/06 15:41:17  billhorsman
  add statistics-log-level

  Revision 1.9  2003/01/30 17:22:03  billhorsman
  new statistics property

  Revision 1.8  2003/01/23 10:41:05  billhorsman
  changed use of pool-name to alias for consistency

  Revision 1.7  2002/12/26 11:32:22  billhorsman
  Moved ALIAS, DRIVER_URL and DRIVER_CLASS constants
  from XMLConfgiurator to ProxoolConstants.

  Revision 1.6  2002/12/15 19:22:51  chr32
  Added constant for proxool xml namespace.

  Revision 1.5  2002/12/11 01:47:12  billhorsman
  extracted property names without proxool. prefix for use
  by XMLConfigurators.

  Revision 1.4  2002/11/09 15:50:49  billhorsman
  new trace constant

  Revision 1.3  2002/10/27 13:29:38  billhorsman
  deprecated debug-level in favour of verbose

  Revision 1.2  2002/10/25 15:59:32  billhorsman
  made non-public where possible

  Revision 1.1.1.1  2002/09/13 08:13:06  billhorsman
  new

  Revision 1.3  2002/08/24 19:57:15  billhorsman
  checkstyle changes

  Revision 1.2  2002/07/12 23:03:22  billhorsman
  added doc headers

  Revision 1.7  2002/07/10 16:14:47  billhorsman
  widespread layout changes and move constants into ProxoolConstants

  Revision 1.6  2002/07/02 11:19:08  billhorsman
  layout code and imports

  Revision 1.5  2002/07/02 08:27:47  billhorsman
  bug fix when settiong definition, displayStatistics now available to ProxoolFacade, prototyper no longer attempts to make connections when maximum is reached

  Revision 1.4  2002/06/28 11:19:47  billhorsman
  improved doc

 */

 

 

解密接口类Decryptool.java

 /*
  * To change this template, choose Tools | Templates
  * and open the template in the editor.
  */
 package org.logicalcobwebs.proxool.util;

 /**
  *
  * @author zhappy
  */
 public interface Decryptool {

     /**
      * 解密字符串
      * @param content 密文
      * @return 明文
      */
     public String decrypt(String content);

 }

 

 

 

PropertyConfigurator.java

 /*
  * This software is released under a licence similar to the Apache Software Licence.
  * See org.logicalcobwebs.proxool.package.html for details.
  * The latest version is available at http://proxool.sourceforge.net
  */
 package org.logicalcobwebs.proxool.configuration;

 import java.io.FileInputStream;
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Properties;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.logicalcobwebs.proxool.ProxoolConstants;
 import org.logicalcobwebs.proxool.ProxoolException;
 import org.logicalcobwebs.proxool.ProxoolFacade;
 import org.logicalcobwebs.proxool.util.Decryptool;

 /**
  * Uses a standard Java properties file to configure Proxool. For example:
  *
  * <pre>
  * jdbc-0.proxool.alias=property-test
  * jdbc-0.proxool.driver-url=jdbc:hsqldb:.
  * jdbc-0.proxool.driver-class=org.hsqldb.jdbcDriver
  * jdbc-0.encrypt=org.logicalcobwebs.proxool.util.Decryptool
  * jdbc-0.user=foo
  * jdbc-0.password=bar
  * jdbc-0.proxool.house-keeping-sleep-time=40000
  * jdbc-0.proxool.house-keeping-test-sql=select CURRENT_DATE
  * jdbc-0.proxool.maximum-connection-count=10
  * jdbc-0.proxool.minimum-connection-count=3
  * jdbc-0.proxool.maximum-connection-lifetime=18000000
  * jdbc-0.proxool.simultaneous-build-throttle=5
  * jdbc-0.proxool.recently-started-threshold=40000
  * jdbc-0.proxool.overload-without-refusal-lifetime=50000
  * jdbc-0.proxool.maximum-active-time=60000
  * jdbc-0.proxool.verbose=true
  * jdbc-0.proxool.trace=true
  * jdbc-0.proxool.fatal-sql-exception=Fatal error
  * jdbc-0.proxool.prototype-count=2
  *
  * jdbc-1.proxool.alias=property-test-2
  * jdbc-1.proxool.driver-url=jdbc:hsqldb:.
  * jdbc-1.proxool.driver-class=org.hsqldb.jdbcDriver
  * jdbc-1.user=scott
  * jdbc-1.password=tiger
  * jdbc-1.proxool.house-keeping-sleep-time=40000
  * jdbc-1.proxool.house-keeping-test-sql=select CURRENT_DATE
  * jdbc-1.proxool.maximum-connection-count=10
  * jdbc-1.proxool.minimum-connection-count=3
  * jdbc-1.proxool.maximum-connection-lifetime=18000000
  * jdbc-1.proxool.simultaneous-build-throttle=5
  * jdbc-1.proxool.recently-started-threshold=40000
  * jdbc-1.proxool.overload-without-refusal-lifetime=50000
  * jdbc-1.proxool.maximum-active-time=60000
  * jdbc-1.proxool.verbose=true
  * jdbc-1.proxool.trace=true
  * jdbc-1.proxool.fatal-sql-exception=Fatal error
  * jdbc-1.proxool.prototype-count=2
  * </pre>
  *
  * <p>The first word (up to the first dot) must start with "jdbc", but it can be
  * anything you like. Use unique names to identify each pool. Any property not
  * starting with "jdbc" will be ignored.</p> <p> The properties prefixed with
  * "proxool." will be used by Proxool while the properties that are not prefixed
  * will be passed on to the delegate JDBC driver. </p>
  *
  * @version $Revision: 1.11 $, $Date: 2006/01/18 14:39:58 $
  * @author Bill Horsman ([email protected])
  * @author $Author: billhorsman $ (current maintainer)
  * @since Proxool 0.5
  */
 public class PropertyConfigurator {

     private static final Log LOG = LogFactory.getLog(PropertyConfigurator.class);
     protected static final String PREFIX = "jdbc";
     private static final String DOT = ".";
     private static final String EXAMPLE_FORMAT = PREFIX + "*" + DOT + "*";

     /**
      * Configure proxool with the given properties file.
      *
      * @param filename the filename of the properties file.
      * @throws ProxoolException if the configuration fails.
      */
     public static void configure(String filename) throws ProxoolException {
         Properties properties = new Properties();
         try {
             properties.load(new FileInputStream(filename));
         } catch (IOException e) {
             throw new ProxoolException("Couldn't load property file " + filename);
         }
         configure(properties);
     }

     /**
      * Configure proxool with the given properties.
      *
      * @param properties the properties instance to use.
      * @throws ProxoolException if the configuration fails.
      */
     public static void configure(Properties properties) throws ProxoolException {
         final Map propertiesMap = new HashMap();
         final Iterator allPropertyKeysIterator = properties.keySet().iterator();
         Properties proxoolProperties = null;

         while (allPropertyKeysIterator.hasNext()) {
             String key = (String) allPropertyKeysIterator.next();
             String value = properties.getProperty(key);

             if (key.startsWith(PREFIX)) {
                 int a = key.indexOf(DOT);
                 if (a == -1) {
                     throw new ProxoolException("Property " + key + " must be of the format " + EXAMPLE_FORMAT);
                 }
                 final String tag = key.substring(0, a);
                 final String name = key.substring(a + 1);
                 proxoolProperties = (Properties) propertiesMap.get(tag);
                 if (proxoolProperties == null) {
                     proxoolProperties = new Properties();
                     propertiesMap.put(tag, proxoolProperties);
                 }
                 proxoolProperties.put(name, value);
             }
         }

         final Iterator tags = propertiesMap.keySet().iterator();
         while (tags.hasNext()) {
             proxoolProperties = (Properties) propertiesMap.get(tags.next());

             final String ec = proxoolProperties.getProperty(ProxoolConstants.USER_PASSWORD_ENCRYPT);
             if (ec != null) {//如果在配置文件中存在解密项就先动态加载解密类，然后对用户名和密码进行解密
                 Decryptool dec = null;
                 try {
                     Class c = Class.forName(ec);
                     Object o = c.newInstance();
                     dec = (Decryptool) o;
                 } catch (Exception e) {
                     LOG.error("new Class [" + ec + "] fail!", e);
                 }
                 final String user = proxoolProperties.getProperty(ProxoolConstants.USER_PROPERTY);//取原值
                 proxoolProperties.setProperty(ProxoolConstants.USER_PROPERTY, dec.decrypt(user));//解密并设置
                 final String password = proxoolProperties.getProperty(ProxoolConstants.PASSWORD_PROPERTY);//取原值
                 proxoolProperties.setProperty(ProxoolConstants.PASSWORD_PROPERTY, dec.decrypt(password));//解密并设置
             }
             // make sure that required propeties are defined
             // and build the url
             // Check that we have defined the minimum information
             final String driverClass = proxoolProperties.getProperty(ProxoolConstants.DRIVER_CLASS_PROPERTY);
             final String driverUrl = proxoolProperties.getProperty(ProxoolConstants.DRIVER_URL_PROPERTY);
             if (driverClass == null || driverUrl == null) {
                 throw new ProxoolException("You must define the " + ProxoolConstants.DRIVER_CLASS_PROPERTY + " and the "
                         + ProxoolConstants.DRIVER_URL_PROPERTY + ".");
             }
             final String alias = proxoolProperties.getProperty(ProxoolConstants.ALIAS_PROPERTY);

             // Build the URL; optionally defining a name
             StringBuffer url = new StringBuffer();
             url.append("proxool");
             if (alias != null) {
                 url.append(ProxoolConstants.ALIAS_DELIMITER);
                 url.append(alias);
                 proxoolProperties.remove(ProxoolConstants.ALIAS_PROPERTY);
             }
             url.append(ProxoolConstants.URL_DELIMITER);
             url.append(driverClass);
             proxoolProperties.remove(ProxoolConstants.DRIVER_CLASS_PROPERTY);
             url.append(ProxoolConstants.URL_DELIMITER);
             url.append(driverUrl);
             proxoolProperties.remove(ProxoolConstants.DRIVER_URL_PROPERTY);
             if (LOG.isDebugEnabled()) {
                 LOG.debug("Created url: " + url);
             }

             ProxoolFacade.registerConnectionPool(url.toString(), proxoolProperties);
         }
     }
 }

 /*
  * Revision history: $Log: PropertyConfigurator.java,v $ Revision 1.11
  * 2006/01/18 14:39:58 billhorsman Unbundled Jakarta's Commons Logging.
  *
  * Revision 1.10 2003/03/05 23:28:56 billhorsman deprecated
  * maximum-new-connections property in favour of more descriptive
  * simultaneous-build-throttle
  *
  * Revision 1.9 2003/03/03 11:12:00 billhorsman fixed licence
  *
  * Revision 1.8 2003/02/06 17:41:05 billhorsman now uses imported logging
  *
  * Revision 1.7 2003/02/05 14:46:31 billhorsman fixed copyright and made PREFIX
  * protected for use by ServletConfigurator
  *
  * Revision 1.6 2003/01/27 18:26:43 billhorsman refactoring of ProxyConnection
  * and ProxyStatement to make it easier to write JDK 1.2 patch
  *
  * Revision 1.5 2003/01/23 10:41:05 billhorsman changed use of pool-name to
  * alias for consistency
  *
  * Revision 1.4 2003/01/22 17:35:01 billhorsman checkstyle
  *
  * Revision 1.3 2003/01/18 15:13:12 billhorsman Signature changes (new
  * ProxoolException thrown) on the ProxoolFacade API.
  *
  * Revision 1.2 2002/12/26 11:32:59 billhorsman Rewrote to support new format.
  *
  * Revision 1.1 2002/12/15 18:48:33 chr32 Movied in from 'ext' source tree.
  *
  * Revision 1.4 2002/11/09 15:57:57 billhorsman fix doc
  *
  * Revision 1.3 2002/11/02 14:22:16 billhorsman Documentation
  *
  * Revision 1.2 2002/10/27 13:05:01 billhorsman checkstyle
  *
  * Revision 1.1 2002/10/27 12:00:16 billhorsman moved classes from ext
  * sub-package which is now obsolete - let's keep everything together in one
  * place
  *
  * Revision 1.1 2002/10/25 10:40:27 billhorsman draft
  *
  */

 

 

 

XMLConfigurator.java

 /*
  * This software is released under a licence similar to the Apache Software Licence.
  * See org.logicalcobwebs.proxool.package.html for details.
  * The latest version is available at http://proxool.sourceforge.net
  */
 package org.logicalcobwebs.proxool.configuration;

 import java.util.Iterator;
 import java.util.Properties;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.logicalcobwebs.proxool.ProxoolConstants;
 import org.logicalcobwebs.proxool.ProxoolException;
 import org.logicalcobwebs.proxool.ProxoolFacade;
 import org.logicalcobwebs.proxool.util.Decryptool;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 import org.xml.sax.SAXParseException;
 import org.xml.sax.helpers.DefaultHandler;

 /**
  * <p>A SAX 2 ContentHandler that can configure Proxool from an XML source.</p>
  *
  * <p>This is just a <a
  * href="http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html"
  * target="_new" >ContentHandler</a>, so you must associate it with a SAX parser
  * for it to actually do anything. If you have JAXP available {@link JAXPConfigurator}
  * will do this for you.</p>
  *
  * <p>Properties that you pass on to the delegate driver have to be treated
  * specially. They must be contained within a &lt;driver-properties&gt;
  * element.</p>
  *
  * <p>See the <a href="The latest version is available at
  * http://proxool.sourceforge.net/properties.html" target="_new">Proxool
  * properties</a> for documentation on the available configuration
  * properties.</p>
  *
  * Example configuration:
  * <pre>
  * &lt;proxool&gt;
  *     &lt;alias&gt;apple&lt;/alias&gt;
  *     &lt;encrypt&gt;org.logicalcobwebs.proxool.util.Decryptool&lt;/alias&gt;
  *     &lt;driver-url&gt;jdbc:hsqldb:.&lt;/driver-url&gt;
  *     &lt;driver-class&gt;org.hsqldb.jdbcDriver&lt;/driver-class&gt;
  *     &lt;driver-properties&gt;
  *         &lt;property name="user" value="abc" /&gt;
  *         &lt;property name="password" value="def" /&gt;
  *     &lt;/driver-properties&gt;
  *     &lt;house-keeping-sleep-time&gt;40000&lt;/house-keeping-sleep-time&gt;
  *     &lt;house-keeping-test-sql&gt;select CURRENT_DATE&lt;/house-keeping-test-sql&gt;
  *     &lt;maximum-connection-count&gt;10&lt;/maximum-connection-count&gt;
  *     &lt;minimum-connection-count&gt;3&lt;/minimum-connection-count&gt;
  *     &lt;maximum-connection-lifetime&gt;18000000&lt;/maximum-connection-lifetime&gt; &lt;!-- 5 hours --&gt;
  *     &lt;simultaneous-build-throttle&gt;5&lt;/simultaneous-build-throttle&gt;
  *     &lt;recently-started-threshold&gt;40000&lt;/recently-started-threshold&gt;
  *     &lt;overload-without-refusal-lifetime&gt;50000&lt;/overload-without-refusal-lifetime&gt;
  *     &lt;maximum-active-time&gt;60000&lt;/maximum-active-time&gt;
  *     &lt;verbose&gt;true&lt;/verbose&gt;
  *     &lt;trace&gt;true&lt;/trace&gt;
  *     &lt;fatal-sql-exception&gt;ORA-1234&lt;/fatal-sql-exception&gt;
  *     &lt;prototype-count&gt;2&lt;/prototype-count&gt;
  * &lt;/proxool&gt;
  * </pre>
  *
  * When the parser reaches the end of the &lt;proxool&gt; element the pool is
  * automatically registered. You can contain the &lt;proxool&gt; element in any
  * other elements as you wish. And the &lt;proxool&gt; element can occur as many
  * times as you wish. This allows you to use an XML file that configures your
  * whole application as the source. This configurator will ignore everything
  * apart from the elements contained within the &lt;proxool&gt; element. <p><a
  * name="#validation"> <b>Validation</b><br> A couple of additional steps are
  * required if you want your SAX parser to validate your Proxool xml
  * confguration: <ul> <li> Put your proxool configuration elements inside a root
  * <code>proxool-config</code> element. The document must adhere to the <a
  * href="proxool.dtd">Proxool dtd</a>. </li> <li> Add a
  * <code>DOCTYPE</code> entry to your xml with a system id containing the
  * <i>absolute url</i> to the Proxool dtd. The Proxool jar contains a copy of
  * the Proxool dtd in the confguration package. You can reference that with a
  * jar url like this:<br>
  * <code><nobr>&lt;!DOCTYPE proxool-config SYSTEM "jar:file:///C:/Proxool/lib/proxool.jar!/org/logicalcobwebs/proxool/configuration/proxool.dtd"&gt;</nobr></code></li>
  * <li> Configure your parser to be validating. In the {@link JAXPConfigurator}
  * this is done by passing
  * <code>true</code> as the second arghument to any of the
  * <code>configure</code> methods. </li> </ul> </p> <p>This class is not thread
  * safe.</p>
  *
  * @version $Revision: 1.18 $, $Date: 2006/01/18 14:39:58 $
  * @author billhorsman
  * @author $Author: billhorsman $ (current maintainer)
  */
 public class XMLConfigurator extends DefaultHandler {

     private static final Log LOG = LogFactory.getLog(XMLConfigurator.class);
     private StringBuffer content = new StringBuffer();
     private String poolName;
     private String driverClass;
     private String driverUrl;
     private Properties properties = new Properties();
     private static final String PROXOOL = "proxool";
     private static final String DRIVER_PROPERTIES = "driver-properties";
     private static final String PROPERTY = "property";
     private static final String NAME = "name";
     private static final String VALUE = "value";
     private boolean insideDelegateProperties;
     private boolean insideProxool;

     /**
      * @see org.xml.sax.ContentHandler#startElement
      */
     @Override
     public void startElement(String uri, String lname, String qname, Attributes attributes) throws SAXException {
         content.setLength(0);

         if (!namespaceOk(uri)) {
             return;
         }

         final String elementName = getElementName(uri, lname, qname);

         if (elementName.equals(PROXOOL)) {
             if (insideProxool) {
                 throw new SAXException("A <" + PROXOOL + "> element can't contain another <" + PROXOOL + "> element.");
             }
             insideProxool = true;
             properties.clear();
             driverClass = null;
             driverUrl = null;
         }

         if (insideProxool) {
             if (elementName.equals(DRIVER_PROPERTIES)) {
                 insideDelegateProperties = true;
             } else if (insideDelegateProperties) {
                 if (elementName.equals(PROPERTY)) {
                     setDriverProperty(attributes);
                 }
             }
         }
     }

     /**
      * @see org.xml.sax.ContentHandler#characters
      */
     @Override
     public void characters(char[] chars, int start, int length) throws SAXException {
         if (insideProxool) {
             content.append(chars, start, length);
         }
     }

     /**
      * @see org.xml.sax.ContentHandler#endElement
      */
     @Override
     public void endElement(String uri, String lname, String qname) throws SAXException {
         if (!namespaceOk(uri)) {
             return;
         }

         final String elementName = getElementName(uri, lname, qname);

         // Are we ending a proxool configuration section?
         if (elementName.equals(PROXOOL)) {

             // Check that we have defined the minimum information
             if (driverClass == null || driverUrl == null) {
                 throw new SAXException("You must define the "
                         + ProxoolConstants.DRIVER_CLASS + " and the " + ProxoolConstants.DRIVER_URL + ".");
             }

             // Build the URL; optinally defining a name
             StringBuffer url = new StringBuffer();
             url.append("proxool");
             if (poolName != null) {
                 url.append(ProxoolConstants.ALIAS_DELIMITER);
                 url.append(poolName);
             }
             url.append(ProxoolConstants.URL_DELIMITER);
             url.append(driverClass);
             url.append(ProxoolConstants.URL_DELIMITER);
             url.append(driverUrl);
             if (LOG.isDebugEnabled()) {
                 LOG.debug("Created url: " + url);
             }

             // Register the pool
             try {
                 final String ec = properties.getProperty(ProxoolConstants.PROPERTY_PREFIX
                         + ProxoolConstants.USER_PASSWORD_ENCRYPT);
                 if (ec != null) {//判断配置文件中是否有解密class的配置，如果有则动态加载
                     Decryptool dec = null;
                     try {
                         Class c = Class.forName(ec);
                         Object o = c.newInstance();
                         dec = (Decryptool) o;
                     } catch (Exception e) {
                         LOG.error("new Class [" + ec + "] fail!", e);
                     }
                     final String user = properties.getProperty(ProxoolConstants.USER_PROPERTY);//取原值
                     properties.setProperty(ProxoolConstants.USER_PROPERTY, dec.decrypt(user));//解密并设置
                     final String password = properties.getProperty(ProxoolConstants.PASSWORD_PROPERTY);//取原值
                     properties.setProperty(ProxoolConstants.PASSWORD_PROPERTY, dec.decrypt(password));//解密并设置
                 }
                 ProxoolFacade.registerConnectionPool(url.toString(), properties);
             } catch (ProxoolException e) {
                 throw new SAXException(e);
             }

             // This ensures we ignore remaining XML until we come across another
             // <proxool> element.
             insideProxool = false;
         }

         if (insideProxool && !elementName.equals(PROXOOL)) {
             if (elementName.equals(DRIVER_PROPERTIES)) {
                 insideDelegateProperties = false;
             } else if (!insideDelegateProperties) {
                 setProxoolProperty(elementName, content.toString().trim());
             }
         }
     }

     private void setProxoolProperty(String localName, String value) {
         if (localName.equals(ProxoolConstants.ALIAS)) {
             poolName = value;
         } else if (localName.equals(ProxoolConstants.DRIVER_CLASS)) {
             driverClass = value;
         } else if (localName.equals(ProxoolConstants.DRIVER_URL)) {
             driverUrl = value;
         } else {
             if (LOG.isDebugEnabled()) {
                 LOG.debug("Setting property '" + ProxoolConstants.PROPERTY_PREFIX + localName + "' to value '" + value + "'.");
             }
             properties.put(ProxoolConstants.PROPERTY_PREFIX + localName, value);
         }
     }

     private void setDriverProperty(Attributes attributes) throws SAXException {
         final String name = attributes.getValue(NAME);
         final String value = attributes.getValue(VALUE);
         if (name == null || name.length() < 1 || value == null) {
             throw new SAXException("Name or value attribute missing from property element."
                     + "Name: '" + name + "' Value: '" + value + "'.");
         }
         if (LOG.isDebugEnabled()) {
             if (name.toLowerCase().indexOf("password") > -1) {
                 LOG.debug("Adding driver property: " + name + "=" + "*******");
             } else {
                 LOG.debug("Adding driver property: " + name + "=" + value);
             }
         }
         properties.put(name, value);
     }

     /**
      * @see org.xml.sax.ErrorHandler#warning(SAXParseException)
      */
     @Override
     public void warning(SAXParseException e) throws SAXException {
         // Just debug-log the warning. We'll probably survive.
         LOG.debug("The saxparser reported a warning.", e);
     }

     /**
      * @see org.xml.sax.ErrorHandler#error(SAXParseException)
      */
     @Override
     public void error(SAXParseException e) throws SAXException {
         // On error we rethrow the exception.
         // This should cause the parser stop and an exeption be thrown back to the client.
         throw e;
     }

     /**
      * @see org.xml.sax.ErrorHandler#fatalError(SAXParseException)
      */
     @Override
     public void fatalError(SAXParseException e) throws SAXException {
         // On fatal error we rethrow the exception.
         // This should cause the parser stop and an exeption be thrown back to the client.
         throw e;
     }

     // If no namespace use qname, else use lname.
     private String getElementName(String uri, String lname, String qname) {
         if (uri == null || "".equals(uri)) {
             return qname;
         } else {
             return lname;
         }
     }

     private boolean namespaceOk(String uri) {
         return uri == null || uri.length() == 0 || uri.equals(ProxoolConstants.PROXOOL_XML_NAMESPACE_URI);
     }
 }

 

 

把上面这几个类编译后，添加、替换原包中的类就可以了。使用上跟原来没有区别。

注意：如果配置使用了解密，就必须先实现接口Decryptool，并在配置文件中设置正确的类路径

接口Decryptool的简单实现：

DecUtil.java

 /*
  * To change this template, choose Tools | Templates
  * and open the template in the editor.
  */
 package cn.bq.tools;

 import java.io.IOException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import org.logicalcobwebs.proxool.util.Decryptool;
 import sun.misc.BASE64Decoder;
 import sun.misc.BASE64Encoder;

 /**
  *
  * @author zhappy
  */
 public class DecUtil implements Decryptool {

     @Override
     public String decrypt(String string) {
         BASE64Decoder decode = new BASE64Decoder();
         String s = null;
         try {
             byte[] b = decode.decodeBuffer(string);
             s = new String(b);
         } catch (IOException ex) {
             Logger.getLogger(DecUtil.class.getName()).log(Level.SEVERE, null, ex);
         }
         return s;
     }


     public String encrypt(String string) {
         BASE64Encoder encode = new BASE64Encoder();
         return encode.encode(string.getBytes());
     }

     public static void main(String[] args) {
         DecUtil dec = new DecUtil();
         String str = "password";
         System.out.println("未加密前：" + str);
         String _str = dec.encrypt(str);
         System.out.println("加密后：" + _str);
         System.out.println("加密字符串[" + _str + "]解密后：" + dec.decrypt(_str));
     }

 }

 

 

xml配置文件的

 JAXPConfigurator.configure("src/java-test/org/logicalcobwebs/proxool/configuration/test-no-ns.xml", false);
 ……
 connection = DriverManager.getConnection("proxool.xml-test");

 

properties 配置文件的

 PropertyConfigurator.configure("src/java-test/org/logicalcobwebs/proxool/configuration/test.properties");
 ……
 connection = DriverManager.getConnection("proxool.property-test");