java - 从 Tomcat 资源访问 oracle，为什么会出现 NamingException？

Question

尝试通过 tomcat Context.xml 公开一个 Oracle 连接时，我得到了一个 NamingException。我已经学习了几个教程，但仍然遇到异常。帮助!

Java:

String environmentLookup = "java:comp/env/jdbc/ENTERPRISE_DATABASE";
OracleDataSource ods = InitialContext.doLookup(environmentLookup);
Connection connection = ods.getConnection();

应用程序的 web.xml:

<resource-ref>
  <description>Oracle Datasource example</description>
  <res-ref-name>jdbc/ENTERPRISE_DATABASE</res-ref-name>
  <res-type>javax.sql.DataSource</res-type>
  <res-auth>Container</res-auth>

Tomcat 的 context.xml:

<Resource name="jdbc/ENTERPRISE_DATABASE" auth="Container"
    type="javax.sql.Datasource" driverClassName="oracle.jdbc.OracleDriver"
    url="jdbc:oracle:thin:@enterprise.db.company.com:1524:schema1234"
    username="ENTERPRISE_USER" password="ENTERPRISE_PASSWORD" maxActive="20"
    maxIdle="10" maxWait="-1" />

异常:

javax.naming.NamingException: Cannot create resource instance
at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:144)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
at org.apache.naming.NamingContext.lookup(NamingContext.java:842)
at org.apache.naming.NamingContext.lookup(NamingContext.java:153)

Answer 1

type="javax.sql.Datasource"

应该是

type="javax.sql.DataSource"