在文件路径中传递变量

var language = "en"; // 用户选择的语言
var cssPath = "css/" + language + "/style.css"; // 根据语言生成CSS文件路径

user_id = 12345 # 用户ID
avatar_path = "avatars/{}.jpg".format(user_id) # 根据用户ID生成头像文件路径

@RunWith(Parameterized.class)
public class FileTest {
    @Parameterized.Parameters
    public static Collection<Object[]> data() {
        return Arrays.asList(new Object[][] {
                { "file1.txt" },
                { "file2.txt" },
                { "file3.txt" }
        });
    }

    @Parameterized.Parameter
    public String filename;

    @Test
    public void testFileExists() {
        File file = new File("path/to/files/" + filename);
        assertTrue(file.exists());
    }
}

String filename = "file1.txt"; // 文件名
String sql = "SELECT * FROM files WHERE path = ?"; // 使用占位符
PreparedStatement statement = connection.prepareStatement(sql);
statement.setString(1, "path/to/files/" + filename); // 设置变量值
ResultSet resultSet = statement.executeQuery();