Openshift-无法使用Java连接到mysql

Question

我是Harold，我是Openshift的新手，我使用下面的代码通过这里的示例用java连接到MySQLhttps://www.openshift.com/forums/openshift/no-suitable-driver-found-error,

不幸的是,我没能成功。

起初，它说“找不到合适的驱动程序”，所以我将mysql连接器添加到WEB-INF/lib文件夹并添加类。forName（“com.mysql.jdc.Driver”）；

然后，它不工作，也不显示错误。

任何帮助都将不胜感激

import java.lang.String;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;

public class someClass {

    public String databaseCall() {
        Connection con = null;
        Statement st = null;
        ResultSet rs = null;
        String myVersion = "";

        String url = "jdbc:mysql://127.x.xxx.x:3306/testdb"; //make sure that this database name exists;
        String user = "admin";
        String password = "xxxxxxxxxxxxxxx";

        try {
            con = DriverManager.getConnection(url, user, password);
            st = con.createStatement();
            rs = st.executeQuery("SELECT VERSION()");

            if (rs.next()) {
                System.out.println(rs.getString(1));
                myVersion = rs.getString(1);
            }

        } catch (SQLException ex) {
            myVersion = ex.getMessage();
        } finally {
            try {
                if (rs != null) {
                    rs.close();
                }
                if (st != null) {
                    st.close();
                }
                if (con != null) {
                    con.close();
                }

            } catch (SQLException ex) {
                myVersion = ex.getMessage();
            }
        }
        return myVersion;
    }
}

Answer 1

试着通读这篇关于如何使用默认mysql的KB文章