我想连接 mysql database 位于托管服务器（如godaddy）上，使用 ssh android javafx（使用javafxmobile插件）项目中的技术（因为它不允许直接连接）。
我使用ssh在我的桌面pc（窗口）上运行，成功地连接到mysql数据库。但当我在安卓上运行它时，一切都卡住了。。。。
目前我的密码是。。。
.java文件：

public static final Integer PORT = 53009;

public static final String DB_NAME = "";
public static final String DB_URL = "jdbc:mysql://localhost:" + PORT + "/" + DB_NAME;
public static final String USERNAME = "";
public static final String PASSWORD = "";

public static final String DRIVER = "com.mysql.cj.jdbc.Driver";

--------------------------------------------------------

Connection con = null;
Session session = null;

//Fields
String rHost = "";
String user = "";
String password = "";

int rPort = 3306;

public void getRootConnection() throws SQLException {
    close();

    try {
        //Create the JSCH object
        JSch jsch = new JSch();

        //Get the session
        session = jsch.getSession(user, rHost);

        //Set the password
        session.setPassword(password);

        //To be able to connect to any host (this is just for testing!)
        session.setConfig("StrictHostKeyChecking", "no");

        //Connect the session
        session.connect();

        //Set port forward
        session.setPortForwardingL(PORT, "localhost", rPort);

        //Show message
        System.out.println("Waiting for connections…");

        //mysql database connectivity
        Class.forName(DRIVER).newInstance();

        con = DriverManager.getConnection(DB_URL, USERNAME, PASSWORD);

        System.out.println("Database connection established");
        System.out.println("DONE");
    } catch (ClassNotFoundException | JSchException | InstantiationException | IllegalAccessException ex) {
        Logger.getLogger(DBConnection.class.getName()).log(Level.SEVERE, null, ex);
    }
}

public void close() {
    try {
        if (con != null && !con.isClosed()) {
            System.out.println("Closing Database Connection");
            con.close();
        }
        if (session != null && session.isConnected()) {
            System.out.println("Closing SSH Connection");
            session.disconnect();
        }
    } catch (SQLException ex) {
        Logger.getLogger(DBConnection.class.getName()).log(Level.SEVERE, null, ex);
    }
}

格雷德尔先生：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.javafxports:jfxmobile-plugin:1.3.16'
    }
}

apply plugin: 'org.javafxports.jfxmobile'

repositories {
    jcenter()
    maven {
        url 'http://nexus.gluonhq.com/nexus/content/repositories/releases'
    }
}

mainClassName = 'com.maqboolsolutions.Main'

dependencies {
    compile 'com.gluonhq:charm:5.0.2'

    compile 'mysql:mysql-connector-java:8.0.13'
    compile 'com.jcraft:jsch:0.1.54'
}

jfxmobile {
    downConfig {
        version = '3.8.6'
        // Do not edit the line below. Use Gluon Mobile Settings in your project context menu instead
        plugins 
    }
    android {
        manifest = 'src/android/AndroidManifest.xml'

        javafxportsVersion = '8.60.11'

        android {
            manifest = 'src/android/AndroidManifest.xml'

            packagingOptions {
                exclude 'META-INF/INDEX.LIST'
            }

            dexOptions {
                javaMaxHeapSize "4g"
            }
        }
    }
}

如果你想帮助我，并想测试自己的这是链接到项目位于github mysql ssh android测试项目
我的主要问题是，当我在android上运行它时，ssh连接工作正常。也可以工作。但是当我使用localhost和forwarded端口连接mysql时，我的应用程序突然错误地关闭了 unresponsive ..
有什么帮助吗？
如果你需要更多信息。我准备好了。如果可以的话，请帮帮我？？？