我目前试图连接Android Studio到我的SQL服务器，但没有运气，然后我试图连接到我的本地MySQL数据库，我得到完全相同的错误，这是它看起来像：
E/Database: Network error IOException: failed to connect to /192.168.0.10 (port 1433) from /:: (port 54516): connect failed: ETIMEDOUT (Connection timed out)
下面是我的代码片段：
jdbc：jtds：mysql：//本地主机：3306/Java数据库、Java、密码
When it comes to the ip string I've tried just about everything such as 10.0.0.2 or using my actual ipv4 address but I still get the same error.

@SuppressLint("NewApi")
public Connection openConnection() {
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
            .permitAll().build();
    StrictMode.setThreadPolicy(policy);
    try {
        String ip = "localhost";
        String db = "javabase";
        String un = "java";
        String password = "password";
        String connectionURL = "jdbc:jtds:sqlserver://" + ip + "/" + db+ ";user=" + un + ";password=" + password + ";";
        Log.d("Database", "Attempting to establish connection to database server...");
        con = DriverManager.getConnection(connectionURL);
        Log.d("Database", "Connection to " + con.getMetaData().getURL());
        return con;
    } catch (Exception ex) {
        Log.e("Database", ex.getMessage());
    }
    return null;
}

先谢了。