Question

我的目的 - 为DAO层创建测试。我的Hibernate配置有通过JNDI指定的数据。我也使用Jboss 5.1，因此需要进行事务查找。

 <property name="hibernate.connection.datasource">java:jdbc/MysqlDS</property>
 <property name="hibernate.transaction.factory_class">org.hibernate.transaction.JTATransactionFactory</property>
 <property name="hibernate.transaction.manager_lookup_class">org.hibernate.transaction.JBossTransactionManagerLookup</property>

要进行测试我需要绑定这些东西。 Todo这个我创建类util来绑定。完整代码

public class RegisteringJNDIWithDataSource {

public static final String JNDI_MY_DS = "java:jdbc/MysqlDS";

private static final String MYSQL_USER = "user";
private static final String MYSQL_PASS = "pass";
private static final String MYSQL_HOST = "localhost";

public static String CTX_INITIAL_CONTEXT_FACTORY = "org.jnp.interfaces.NamingContextFactory";
public static String CTX_URL_PKG_RPEFIXES = "org.jboss.naming";


private void startRegistry() throws NamingException, RemoteException {

    System.out.println(LocateRegistry.getRegistry());
    Registry reg = LocateRegistry.createRegistry(1099);

    NamingServer server = new NamingServer();
    NamingContext.setLocal(server);
    System.out.println("RMI registry Stared.");
}

public InitialContext createInitialContextContext() throws NamingException {
    System.setProperty(Context.URL_PKG_PREFIXES, CTX_URL_PKG_RPEFIXES);
    System.setProperty(Context.INITIAL_CONTEXT_FACTORY, CTX_INITIAL_CONTEXT_FACTORY);

    InitialContext initialContextcontext = new InitialContext();
    return initialContextcontext;
}

/**
 * Registry the following JNDIs
 *
 * @throws RemoteException
 * @throws NamingException
 */
public void registrate() throws RemoteException, NamingException {
    startRegistry();
    InitialContext ic;
    ic = createInitialContextContext();


    String[] cxts = JNDI_MY_DS.split("/");

    String inCxt = cxts[0];
    createSubcontext(ic, inCxt);
    for (int i = 1; i < cxts.length - 1; i++) {
        // if the data source name is like java:/comp/mysqldatasource
        // this takes care of creating subcontexts in jndi
        inCxt = inCxt + "/" + cxts[i];
        createSubcontext(ic, inCxt);
    }

    ic.rebind(JNDI_MY_DS, createMysqlDataSource("db_name"));


    // the following requires JBoss dependent class. May be sth can be done to generalize this

    TransactionManager tm = new CustomTXNManager();
    ic.bind("java:/TransactionManager", tm);

    UserTransaction ut = new CustomUserTransaction();
    ic.bind("UserTransaction", ut);
}

private static Context createSubcontext(Context ctx, String cxtName) throws NamingException {
    System.out.println(" creating subcontext " + cxtName);
    Context subctx = ctx;
    Name name = ctx.getNameParser("").parse(cxtName);
    for (int pos = 0; pos < name.size(); pos++) {
        String ctxName = name.get(pos);
        try {
            subctx = (Context) ctx.lookup(ctxName);
        } catch (NameNotFoundException e) {
            subctx = ctx.createSubcontext(ctxName);
        }
        // The current subctx will be the ctx for the next name component
        ctx = subctx;
    }
    return subctx;
}

public void unregistrate() throws NamingException {
    InitialContext context;
    context = createInitialContextContext();
    context.unbind(JNDI_MY_DS);
}

private MysqlConnectionPoolDataSource createMysqlDataSource(String database) throws NamingException {
    MysqlConnectionPoolDataSource dataSource;
    dataSource = new MysqlConnectionPoolDataSource();
    dataSource.setUser(MYSQL_USER);
    dataSource.setPassword(MYSQL_PASS);
    dataSource.setServerName(MYSQL_HOST);
    dataSource.setPort(3306);
    dataSource.setDatabaseName(database);
    return dataSource;
}

public static void main(String args[]) {
    RegisteringJNDIWithDataSource dataSource = new RegisteringJNDIWithDataSource();
    try {
        dataSource.registrate();

    } catch (RemoteException ex) {
        ex.printStackTrace();
    } catch (NamingException ex) {
        ex.printStackTrace();
    }
}

public static class CustomTXNManager extends TransactionManagerImple implements Serializable {

    private static final long serialVersionUID = 1L;

    public CustomTXNManager() {
    }
}

public static class CustomUserTransaction extends UserTransactionImple implements Serializable {

    private static final long serialVersionUID = 1L;

    public CustomUserTransaction() {
    }
}

}

如果从控制台调用，一切正常。但是当我从JUnit调用它时，我得到了异常。

 @Test
 public void test() throws RemoteException, NamingException {
     RegisteringJNDIWithDataSource j = new RegisteringJNDIWithDataSource();
     j.registrate();
 }


    javax.naming.OperationNotSupportedException
at com.sun.jndi.rmi.registry.RegistryContext.createSubcontext(RegistryContext.java:230)
at javax.naming.InitialContext.createSubcontext(InitialContext.java:464)

我尝试从JUnit创建JNDI子上下文时出现异常

0 个答案: