如何跳过Spring Batch中的页脚

public class CustomItemReader implements ItemReader<String> {

    private BufferedReader reader;
    private String currentLine;

    public CustomItemReader(String filePath) throws IOException {
        reader = new BufferedReader(new FileReader(filePath));
    }

    @Override
    public String read() throws Exception {
        currentLine = reader.readLine();
        
        // 判断当前行是否为页脚，如果是则跳过
        if (isFooter(currentLine)) {
            currentLine = reader.readLine();
        }
        
        return currentLine;
    }
    
    private boolean isFooter(String line) {
        // 判断当前行是否为页脚的逻辑
        // 返回true表示是页脚，返回false表示不是页脚
    }
}

<bean id="customItemReader" class="com.example.CustomItemReader">
    <constructor-arg value="path/to/file.csv" />
</bean>

<batch:step id="myStep">
    <batch:tasklet>
        <batch:chunk reader="customItemReader" writer="itemWriter" commit-interval="10" />
    </batch:tasklet>
</batch:step>