Eclipse中的代码有效，但在Android上不起作用

Question

I have this problem for about 2 days and I cannot find any solution. Thing is I'm using MySQL-Connection-Java to operate MySQL base on Android. While debugging it cannot connect with this base, even though code in Eclipse Java works fine. I was looking throughout many forum discussions on the Internet, but seems like there is no valid solution, or maybe I am THAT blind. Below you can see class code that I'm using. I have no clue why in Eclipse in connects with the base, but on the Android device it doesn't want to.

Error code:com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

    import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.SQLException; 
import java.util.Properties;

    public class JDBC {
        // init database constants
        private static final String DATABASE_DRIVER = "com.mysql.jdbc.Driver";
        private stat

ic final String DATABASE_URL = "jdbc:mysql://sql7.freemysqlhosting.net/sql7109625?autoReconnect=true";
        private static final String USERNAME = "REMOVED";
        private static final String PASSWORD = "REMOVED";
        private static final String MAX_POOL = "250";

        // init connection object
        private Connection connection;
        // init properties object
        private Properties properties;

        // create properties
        private Properties getProperties() {
            if (properties == null) {
                properties = new Properties();
                properties.setProperty("user", USERNAME);
                properties.setProperty("password", PASSWORD);
                properties.setProperty("MaxPooledStatements", MAX_POOL);
            }
            return properties;
        }

        // connect database
        public Connection connect() {
            if (connection == null) {
                try {
                    Class.forName(DATABASE_DRIVER);
                    connection = DriverManager.getConnection(DATABASE_URL, getProperties());
                } catch (ClassNotFoundException | SQLException e) {
                    e.printStackTrace();
                }
            }
            return connection;
        }

        // disconnect database
        public void disconnect() {
            if (connection != null) {
                try {
                    connection.close();
                    connection = null;
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        } }

Answer 1

I find my problem. I use

    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy); 

and my application work :)