Parsing 使用RowProcessor解析固定宽度文件（Univocity）

我正在处理一个固定宽度的文件，其中包含3种不同类型的bean：

• Bean 1（头）：长度=256；从0256Q开始；一个 标题
• Bean 2（记录）：长度=768；从0768T开始； 可重复
• Bean 3（页脚）：长度=256；从0256Z开始；一 单页脚

我尝试了许多Univocity选项，但问题是processor.getBeans（）方法总是在解析步骤之后为每种类型的bean返回一个空列表

有人能帮我吗

        FixedWidthParserSettings settings = new FixedWidthParserSettings();
        settings.setAutoConfigurationEnabled(true);
        settings.setHeaderExtractionEnabled(false);
        settings.setRecordEndsOnNewline(true);
        settings.trimValues(false);
        
        FixedWidthFields header = FixedWidthFields.forParsing(Header0256Q.class);
        FixedWidthFields payment = FixedWidthFields.forParsing(Payment0768T.class);
        FixedWidthFields footer = FixedWidthFields.forParsing(Footer0256Z.class);
        

展望未来

        settings.addFormatForLookahead("0256Q", header);
        settings.addFormatForLookahead("0768T", payment);
        settings.addFormatForLookahead("0256Z", footer);
        

为每种类型的记录创建一个处理器

        BeanListProcessor<Header0256Q> headerProcessor = new BeanListProcessor<Header0256Q>(Header0256Q.class);
        BeanListProcessor<Payment0768T> paymentProcessor = new BeanListProcessor<Payment0768T>(Payment0768T.class);
        BeanListProcessor<Footer0256Z> footerProcessor = new BeanListProcessor<Footer0256Z>(Footer0256Z.class);
        

解析

        FixedWidthParser parser = new FixedWidthParser(settings);
        parser.parse(lFile);

吃豆子

        List<Header0256Q> headerRecords = headerProcessor.getBeans();
        List<Payment0768T> paymentRecords = paymentProcessor.getBeans();
        List<Footer0256Z> footerRecords = footerProcessor.getBeans();
        

        List<Header0256Q> headerRecords = headerProcessor.getBeans();
        List<Payment0768T> paymentRecords = paymentProcessor.getBeans();
        List<Footer0256Z> footerRecords = footerProcessor.getBeans();
        

        Dtazv dtazv = new Dtazv();
        dtazv.setHeaderRecord(headerRecords.get(0));
        dtazv.setPaymentRecords(paymentRecords);
        dtazv.setFooterRecord(footerRecords.get(0));