Java 规则引擎的设置第一步

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加载应用程序访问的接口：javax.rules.RuleServiceProvider

在Java EE(Weblogic server)环境中，java规则引擎的管理活动是应用服务器的一部分。JSR94的参考实现包括了一个JCA连接起，用于通过JNDI获得RuleServiceProvider

//得到初始化上下文

private static Context getInitialContext() throws Exception
    {
        String url = "t3://localhost:7001";
        String user = "weblogic";
        String password = "weblogic";
        Properties properties = null;
        try
        {
            properties = new Properties();
            properties.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
            properties.put(Context.PROVIDER_URL, url);
            if (user != null)
            {
                properties.put(Context.SECURITY_PRINCIPAL, user);
                properties.put(Context.SECURITY_CREDENTIALS, password == null ? "" : password);
            }

            return new InitialContext(properties);
        }
        catch(Exception e)
        {
            throw e;
        }
    }

main {………………

      Context ctx = null;
        Connection myConn = null;
        try
        {

             //建立初始上下文
            ctx = getInitialContext();
            serviceProvider = (RuleServiceProvider) ctx.lookup("jess.jsr94 "); //?????

myConn = serviceProvider.getConnection();

}

        在Java SE环境中，Class.forName("jess.jsr94.RuleServiceProviderImpl");
                                  RuleServiceProvider serviceProvider = RuleServiceProviderManager.
                                                      getRuleServiceProvider("jess.jsr94");

………………