Question

I'm trying to connect a Java based program running through Tomcat to a CONNX database, but I'm getting the error in the title. This is the code I have, with some identifying information removed:

OnChildClickListener

I've been using instructions from:

http://www.connx.com/products/connx/CONNX%2010%20UserGuide/connxcdd32a/opening_a_connection_jdbc_driver.htm

"praxav11" I got from the DSNR tool, according to which is the CDD-DSN for the CDD I want so I'm pretty confident that is right.

For the gateway I've tried both the server name and the server IP. Username and password I'm quite confident are correct and I would get a different error for those anyway I guess.

Does anybody have any ideas for what is wrong or suggestions for what to try? I'm really drawing a blank on this and have tried brute forcing it but I just can't get it to work.

The full error is:

namespace app\modules\forum;

class Module extends \yii\base\Module
{
    public function init()
    {
        parent::init();

        $this->modules = [
            'admin' => [
                // you should consider using a shorter namespace here!
                'class' => 'app\modules\forum\modules\admin\Module',
            ],
        ];
    }
}

Answer 1

好点...也许你可以尝试这个解决方法，因为你在Tomcat .. 使用此链接
http://tomcat.apache.org/tomcat-7.0-doc/jndi-datasource-examples-howto.html 在上下文文件中设置数据库资源。请在您的应用程序的web.xml文件中引用它。并编写一个代码片段，查找JNDI并建立连接。这将通过TomCats的眼睛确认问题是什么。

别忘了将包含驱动程序的CONNX jar文件复制到运行代码之前，Tomcat home（CATALINA_HOME）。

Answer 2

Class.forName("com.Connx.jdbc.TCJdbc.TCJdbcDriver").newInstance();
TCJdbcDataSource ds = new TCJdbcDataSource();
ds.setGateway("<GateWay_IP>");
ds.setPort((short)7500); //default port
ds.setDSN("<Your_DSN_IP>");
ds.setUser("<UserName>");
Connection con = ds.getConnection();
Statement st = con.createStatement();
ResultSet rs = st.executeQuery(sql);

Cannot connect Java to CONNX: java.sql.SQLException: Connection refused: connect

2 个答案: