eclipse+myeclipse+mysql
服务器
TOMCAT
1.配置数据源（Tomcat 5.0\conf\server.xml）在</Host>添加
<Context path="/tt" docBase="tt"
debug="5" reloadable="true" crossContext="true">
<!--tt为部署工程的名称，在C:\Tomcat 5.0\webapps下-->
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_tt_log." suffix=".txt"
timestamp="true"/>
<Resource name="jdbc/mysql"
auth="Container"
type="javax.sql.DataSource"/>
<!--jdbc/mysql isjndi name-->
<ResourceParams name="jdbc/mysql">
<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>100</value>
</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.
-->
<parameter>
<name>maxIdle</name>
<value>30</value>
</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.
-->
<parameter>
<name>maxWait</name>
<value>10000</value>
</parameter>
