How to save a Base64 to a mysql database?

Question

I am creating an application using Angularjs and using webservlets with mysql database connection.

To generate the binary, I use the following code:

 $scope.adicionarArquivo = function (element) {
    var reader = new FileReader();
    reader.readAsDataURL(element.files[0]);

    setTimeout(function () {
        $scope.itemSelecionado.arquivo = reader.result;
    }, 1000);

};

The binary is generated correctly and I can display the image in an IMG tag. The problem occurs when I save it in the database. First how do I store this binary in java to pass in mysql? And, what variable do I create in the database, blob? Binary?