3，配置新的webapp：找到host尾标记< /host>，插入新的context即可。
如：
（1）< context path="" docbase="root" debug="0"/>
若要支持数据库（以sql server为例），则为：
（2）< context path="/xkb" docbase="f:\xkb6\webapp" debug="5" reloadable="true" crosscontext="true">
< logger classname="org.apache.catalina.logger.filelogger" prefix="localhost_dbtest_log." suffix=".txt" timestamp="true"/>
< resource name="jdbc/sqlserverdb" auth="container" type="javax.sql.datasource"/>
< resourceparams name="jdbc/sqlserverdb">
< parameter>
< name>factory< /name>
< value>org.apache.commons.dbcp.basicdatasourcefactory< /value>
< /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.-->

< parameter>
< name>maxactive< /name>
< value>50< /value>
< /parameter>

< !-- maximum number of idle db connections to retain in pool. set to 0 for no limit.-->

< parameter>
< name>maxidle< /name>
< value>20< /value>
< /parameter>

< !-- maximum time to wait for a db connection to become available in ms, in this example 0.5 seconds. an exception is thrown if this timeout is exceeded. set to -1 to wait indefinitely. -->

< parameter>
< name>maxwait< /name>
< value>500< /value>
< /parameter>

< !-- mssql db username and password for db connections -->

< parameter>
< name>username< /name>
< value>sa< /value>
< /parameter>

< parameter>
< name>password< /name>
< value>wangnewton< /value>
< /parameter>

< !-- class name for sqlserver2000 jdbc driver -->

< parameter>
< name>driverclassname< /name>
< value>com.microsoft.jdbc.sqlserver.sqlserverdriver< /value>

< /parameter>

< !-- the jdbc connection url for connecting to your ms sql server db.the autoreconnect=true argument to the url makes sure that the mm.sql server jdbc driver will automatically reconnect if mysqld closed the connection. mysqld by default closes idle connections after 8 hours.-->

< parameter>
< name>url< /name>
< value>jdbc:microsoft:sqlserver://localhost:1433;databasename=xkbcourse< /value>
< !--must use & not use & -->
< /parameter>

< /resourceparams>
< /context>