BatchConfiguration.java

@Bean
	public FlatFileItemReader<Product> csvProductReader() {
		FlatFileItemReader<Product> reader = new FlatFileItemReader<Product>();
		reader.setResource(new ClassPathResource("products.csv"));
		reader.setLineMapper(new DefaultLineMapper<Product>() {
			{
				setLineTokenizer(new DelimitedLineTokenizer() {
					{
						setNames(new String[] { "id", "name", "price", "description" });
					}
				});
				setFieldSetMapper(new BeanWrapperFieldSetMapper<Product>() {
					{
						setTargetType(Product.class);
					}
				});
			}
		});
		return reader;
	}