用tomcat5.0数据库连接池的一个问题

各位大虾们好:
我在学习中遇到些问题我在创建tomcat连接池的时候遇到个问题希望大家能帮助我
我在Tomcat 5.0\conf\server.xml中的配置文件如下：
<Context path="/test" docBase="test"
                        debug="5" reloadable="true" crossContext="true">
                        <Resource name="jdbc/test" auth="Container"
          type="javax.sql.DataSource"/>                         <ResourceParams name="jdbc/test">
                        <parameter>
                                <name>factory</name>
                                <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
                        </parameter>
                          
                          <!-- Class name for the official Orcale9i Connector/J driver -->
                          <parameter>
                                <name>driverClassName</name>
                                <value>oracle.jdbc.driver.OracleDriver</value>
                          </parameter>
                          <!-- The JDBC connection url for connecting to your Orcale9i dB.
                         The autoReconnect=true argument to the url makes sure that the
                         JDBC Driver will automatically reconnect if orcale closed the
                         connection.  orcale by default closes idle connections after 8 hours.
                         -->
                          <parameter>
                                <name>url</name>
                                <value>jdbc:oracle:thin:@127.0.0.1:1521:smap</value>
                          </parameter>
                          <!-- Orcale9i dB username and password for dB connections  -->                          <parameter>
                                <name>username</name>
                                <value>smap</value>
                          </parameter>
                          <parameter>
                                <name>password</name>
                                <value>smap$lf</value>***问题在这里在程序中不认“$”***
                          </parameter>
                          <parameter>
                          <!-- Maximum number of dB connections in pool. Make sure you
                         configure your mysqld max_connections large enough to handle
                         all of your db connections. Set to 0 for no limit.
                         -->
                                <name>maxActive</name>
                                <value>20</value>
                          </parameter>
                          <parameter>
                          <!-- Maximum number of idle dB connections to retain in pool.
                         Set to -1 for no limit.  See also the DBCP documentation on this
                         and the minEvictableIdleTimeMillis configuration parameter.
                         -->
                                <name>maxIdle</name>
                                <value>10</value>
                          </parameter>
                          <parameter>
                          <!-- Maximum time to wait for a dB connection to become available
                         in ms, in this example 10 seconds. An Exception is thrown if
                         this timeout is exceeded.  Set to -1 to wait indefinitely.
                         -->
                         <name>maxWait</name>
                                <value>-1</value>
                          </parameter>
                        </ResourceParams> 
                </Context>
调用程序如下：
                         ....................................
                     Context initCtx=new InitialContext();
                    Context envCtx=(Context)initCtx.lookup("java:comp/env");
                    ds=(DataSource)envCtx.lookup("jdbc/test");
                    if(ds!=null)
                    {
                            out.println("已经获得DataSource");
                            out.println("<br>");
                            Connection con=ds.getConnection();/*调试中这里报错原因就是在读取密码时程序不能读出里面的那个"$",请教各位这个问题如何处理-_-*/
                              ...............................错误信息如下：
Cannot create PoolableConnectionFactory (ORA-01017: invalid username/password; logon denied
)