rs.getString（）返回空

Question

我试图从MySQL数据库获取数据但getString总是返回空，尽管getInt返回数据库中的值。我没有得到任何例外。我搜索了我的问题并发现InputStreamReader解决方案有效，但我真的想让getString在我的代码上工作......

我的代码

    public static List<Cliente> getLista() {
    ArrayList<Cliente> arr = new ArrayList<>();
    try(Connection connection = new ConnectionFactory().getConnection();
        PreparedStatement stmt = 
                connection.prepareStatement("select * from clientes");){
        System.out.println("Conexão aberta!");
        ResultSet rs = stmt.executeQuery();
        while(rs.next()){
            Cliente cliente = new Cliente();
            //cliente.setId(rs.getInt("id"));
            //cliente.setNome(rs.getString("nome"));
            //cliente.setEndereco(rs.getString("endereco"));
            //cliente.setTelefone(rs.getString("telefone"));
            String str = new String();  
            InputStreamReader in = new InputStreamReader(rs.getAsciiStream("endereco"));
            while (in.ready())  
                str = str + (char) in.read();                 
            System.out.println("InputStreamReader: "+str+" getString: "+rs.getString("endereco")+" getInt: "+rs.getInt("id"));
            //Add to List
            arr.add(cliente);
        }
        return arr;
    }catch(SQLException e){ System.out.println("Exceção SQL");
    }catch(Exception e){  System.out.println("Exceção no código!");
    }
    return null;
}

数据库：

输出：

Info:   Conexão aberta!
Info:   InputStreamReader: 12312312 getString:  getInt: 1
Info:   InputStreamReader: teresop getString:  getInt: 2