相关疑难解决方法(0)

Context context = new InitialContext();
dataSource = (DataSource) context.lookup("java:comp/env/jdbc/multiDS");
connection = dataSource.getConnection();

请帮我模仿上面的代码.

嗨汤姆安德森

我尝试了下面的代码

 @BeforeClass
 public static void setUpClass() throws Exception {
        // rcarver - setup the jndi context and the datasource
        try {
            // Create initial context
            System.setProperty(Context.INITIAL_CONTEXT_FACTORY,
                "org.apache.naming.java.javaURLContextFactory");
            System.setProperty(Context.URL_PKG_PREFIXES, 
                "org.apache.naming");            
            Context ic = new InitialContext();

            ic.createSubcontext("java:");
            ic.createSubcontext("java:comp");
            ic.createSubcontext("java:comp/env");
            ic.createSubcontext("java:comp/env/jdbc");
            ic.createSubcontext("java:comp/env/jdbc/multiDS");
            // Construct DataSource
            OracleConnectionPoolDataSource ds = new OracleConnectionPoolDataSource();
            ds.setURL("jdbc:oracle:thin:@g9u0696.houston.hp.com:1525:CRNAD");
            ds.setUser("uname");
            ds.setPassword("pwd");
        } catch (NamingException ex) {
            ex.printStackTrace();
        }
 }

但它给出的错误是:

com.hp.corona.common.exception.CacheException: org.apache.naming.NamingContext cannot be cast to javax.sql.DataSource …