java - SqlConnection 在连接测试时抛出错误

Question

我正在尝试测试与 msql 服务器的连接，它向我抛出错误 System.err: java.lang.RuntimeException: No message resource found for message property prop.servertype。它一直通过并在 con = DriverManager.getConnection(conString, user, password);

处停止

  private class AsyncTaskRunner extends AsyncTask<String, String, String>
    {
        ProgressDialog progressDialog;
        boolean conSuccess = false;
        String host, port, dbname, user, password, instance;

        @Override
        protected String doInBackground(String... params)
        {
            try
            {
                Log.e("SQLConfig", "Estou dentro do try");


                String driver = "net.sourceforge.jtds.jdbc.Driver";
                String conString;
                if (TextUtils.isEmpty(port))
                {
                    conString = "jdbc:jtds:sqlserver://" + host + "/" + instance + ";DatabaseName=" +dbname;
                }
                else
                {
                    conString = "jdbc:jtds:sqlserver://" + host + ":" + port + "/" + instance + ";DatabaseName=" +dbname;
                }
                Connection con;
                Class.forName(driver);
                Log.e("SQLConfig", "Driver metida com sucesso");
                //con = DriverManager.getConnection(testCon);
                Log.i("Carlos",conString + " - User: " + user + " - Password: " + password);
                con = DriverManager.getConnection(conString, user, password);
                Log.e("SQLConfig", "Consegui fazer a ligação com sucesso");
                con.close();
                Log.e("SQLConfig", "Fechar ligação ");
                conSuccess = true;
            }
            catch (Exception e)
            {
                e.printStackTrace();
                Log.e("SQLConfig", "Não consegui fazer a ligação");
                Log.e("SQLConfig", e.toString());
                Log.e("SQLConfig", e.getMessage());
            }
            return null;
        }

完整的错误堆栈:

W/System.err: java.lang.RuntimeException: No message resource found for message property prop.servertype
        at net.sourceforge.jtds.jdbc.Messages.get(Messages.java:120)
        at net.sourceforge.jtds.jdbc.Messages.get(Messages.java:67)
        at net.sourceforge.jtds.jdbc.Driver.parseURL(Driver.java:374)
        at net.sourceforge.jtds.jdbc.Driver.setupConnectProperties(Driver.java:239)
        at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:182)
        at java.sql.DriverManager.getConnection(DriverManager.java:569)
W/System.err:     at java.sql.DriverManager.getConnection(DriverManager.java:219)
        at com.example.viewer.dbconfig$AsyncTaskRunner.doInBackground(dbconfig.java:210)
        at com.example.viewer.dbconfig$AsyncTaskRunner.doInBackground(dbconfig.java:181)
        at android.os.AsyncTask$2.call(AsyncTask.java:333)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:764)
E/SQLConfig: Não consegui fazer a ligação
    java.lang.RuntimeException: No message resource found for message property prop.servertype
    No message resource found for message property prop.servertype

从手机打印:

当我点击“Testar ligação”按钮时，它会执行验证文本框是否为空的操作

        _btnTestCon.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                // Verificar se os dados forem todos preenchidos ou não
                if (_editTextHost.getText().toString().trim().equals("") || _editTextInstance.getText().toString().trim().equals("") ||
                        _editTextDbName.getText().toString().trim().equals("") || _editTextUser.getText().toString().trim().equals("") || _editTextPass.getText().toString().trim().equals(""))
                {
                    AlertDialog.Builder builder = new AlertDialog.Builder(dbconfig.this);

                    builder.setMessage(R.string.config_message_needMoreInfo)
                            .setCancelable(false)
                            .setPositiveButton(R.string.general_ok, new DialogInterface.OnClickListener()
                            {
                                @Override
                                public void onClick(DialogInterface dialogInterface, int i)
                                {
                                    dialogInterface.cancel();
                                }
                            });
                    builder.show();
                }
                // Testar a ligação
                else
                {
                    AsyncTaskRunner runner = new AsyncTaskRunner();
                    runner.execute();
                }
            }
        });
    }

我希望 DriverManager.getConnection 返回日志。

Answer 1

请提供完整的堆栈跟踪和日志记录。 你是如何执行你的代码的？ 您是否有在预期的主机和端口上运行的 SQL Server 数据库？

查看文档:http://jtds.sourceforge.net/faq.html

The URL format for jTDS is:

jdbc:jtds:<server_type>://<server>[:<port>][/<database>][;<property>=<value>[;...]]

where is one of either 'sqlserver' or 'sybase' (their meaning is quite obvious), is the port the database server is listening to (default is 1433 for SQL Server and 7100 for Sybase) and is the database name -- JDBC term: catalog -- (if not specified, the user's default database is used).

例如您的网址是:

jdbc:jtds:sqlserver://host:1337/instance;DatabaseName=dbname

您确定网址正确吗？ 您是否设置端口号？ 实例存在吗？ 属性 DatabaseName 是否存在，您是否向其传递了正确的值？