请大侠指点一下：

[onekey]

一个jndi-definitions.xml描述如下：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jndi-definitions PUBLIC "-//Borland Corporation//DTD JndiDefinitions//EN" "http://www.borland.com/devsupport/appserver/dtds/jndi-definitions.dtd">
<jndi-definitions>
<visitransact-datasource>
<jndi-name>serial://datasources/SQLServer</jndi-name>
<driver-datasource-jndiname>serial://datasources/driverSQLServer</driver-datasource-jndiname>
<property>
<prop-name>connectionType</prop-name>
<prop-type>Enumerated</prop-type>
<prop-value>Direct</prop-value>
</property>
<property>
<prop-name>dialect</prop-name>
<prop-type>Enumerated</prop-type>
<prop-value>mssqlserver</prop-value>
</property>
</visitransact-datasource>
<driver-datasource>
<jndi-name>serial://datasources/driverSQLServer</jndi-name>
<datasource-class-name>com.inprise.visitransact.jdbc1w2.InpriseConnectionPoolDataSource</datasource-class-name>
<property>
<prop-name>user</prop-name>
<prop-type>String</prop-type>
<prop-value>sa</prop-value>
</property>
<property>
<prop-name>password</prop-name>
<prop-type>String</prop-type>
<prop-value />
</property>
<property>
<prop-name>url</prop-name>
<prop-type>String</prop-type>
<prop-value>jdbc:weblogic:mssqlserver4:seminar@localhost:1433</prop-value>
</property>
<property>
<prop-name>driverClassName</prop-name>
<prop-type>String</prop-type>
<prop-value>weblogic.jdbc.mssqlserver4.Driver</prop-value>
</property>
</driver-datasource>
</jndi-definitions>


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在下面的调用中：
Properties properties=entityContext.getEnvironment();
String url=properties.getProperty("db.url");
String username=properties.getProperty("db.username");
String password=properties.getProperty("db.password");

DB对应的那部分？

[onekey]

大家帮帮忙啊，分不够我再加，这一部分我确实不清楚

[rojack]

我想是在weblogic(如果你用的是weblogic服务器的话)里面的启动参数.