FlatFileItemReader不拾取從#開始的行-有解無憂

我正在嘗試使用 a 通過 spring-batch 讀取 ATM-EJ 檔案flatFileItemReader，它完美地讀取了所有內容，除了它錯過了以 # 開頭的任何行。下面是我的itemReder

 @Bean
    @Scope(value = "step", proxyMode = ScopedProxyMode.TARGET_CLASS)
    public FlatFileItemReader flatFileItemReader(@Value("#{jobParameters}") Map<String, JobParameter> jobParameters) {
        return new FlatFileItemReaderBuilder<FieldSet>()
                .name("flatFileItemReader")
                .resource(new PathResource(ProducerUtil.getJobParameterByName(jobParameters, ProducerConstants.MULTILINE_JOB_PARAM_NAME, "inputFilePath")))
                //.lineTokenizer(ejFileTokenizer(null))
                .lineTokenizer(initiateNewTokenizer())
                .fieldSetMapper(new PassThroughFieldSetMapper())
                .linesToSkip(Integer.parseInt(ProducerUtil.getJobParameterByName(jobParameters, ProducerConstants.MULTILINE_JOB_PARAM_NAME, "linesToSkip")))
                .encoding("Cp1252")
                //.encoding("UTF-8")
                .build();
    }

行分詞器

private LineTokenizer initiateNewTokenizer() {
        return new AbstractLineTokenizer() {
            @Override
            protected List<String> doTokenize(String line) {
                return Arrays.asList(line);
            }
        };
    }

樣本輸入

     *TRANSACTION START*
[020t CARD INSERTED
[020tCARD: ****************9847
DATE 29-12-20    TIME 00:04:34
 00:04:36 ATR RECEIVED T=0
[020t 00:04:53 PIN ENTERED
[020t 00:04:59 OPCODE = A C  C B
 00:04:59 GENAC 1 : ARQC
EXTERNAL AUTHENTICATE: NO ARPC
 00:05:02 GENAC 2 : AAC
 00:05:09 ATR RECEIVED T=0
[020t 00:05:11 OPCODE = A C  C B
 00:05:11 GENAC 1 : ARQC
 00:05:14 GENAC 2 : TC
[020t 00:05:20 NOTES STACKED
[020t 00:05:25 CARD TAKEN
[020t 00:05:28 NOTES PRESENTED 0,1,0,0

#29/12/20  00:06  ATM0001
000607934460  1351          29/12/20
XXXXXXXXXXXXXXXXX
                CUR100.00 CashWithdrawal  000
[020t 00:05:29 NOTES TAKEN
[000p[040q(1     *1351*1*E*000010000,M-00,R-10100
[020t 00:05:36 TRANSACTION END

這是未被讀取的行

 #29/12/20  00:06  ATM0001

我不確定是什么問題，這可能是編碼嗎？或與標記器有關？我嘗試除錯，發現下面的方法沒有收到以 # 開頭的行

 @Override
            protected List<String> doTokenize(String line) {

uj5u.com熱心網友回復：

“ # ”是一個注釋FlatFileItemReader，這就是為什么您沒有收到該行。

FlatFileItemReader源代碼包含以下內容：

public static final String[] DEFAULT_COMMENT_PREFIXES = new String[] { "#" };

因此，如果您想在構建器中指定不同的注釋前綴：

.comments("")

在您的代碼中：

return new FlatFileItemReaderBuilder<FieldSet>()
                .name("flatFileItemReader")
                .resource(new PathResource(ProducerUtil.getJobParameterByName(jobParameters, ProducerConstants.MULTILINE_JOB_PARAM_NAME, "inputFilePath")))
                //.lineTokenizer(ejFileTokenizer(null))
                .lineTokenizer(initiateNewTokenizer())
                .fieldSetMapper(new PassThroughFieldSetMapper())
                .linesToSkip(Integer.parseInt(ProducerUtil.getJobParameterByName(jobParameters, ProducerConstants.MULTILINE_JOB_PARAM_NAME, "linesToSkip")))
                .encoding("Cp1252")
                //.encoding("UTF-8")
                .comments("") // ignore lines that starts with
                .build();

參考：https ://github.com/spring-projects/spring-batch/blob/c4b001b732c8a4127e6a2a99e2fd00fff510f629/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/file/FlatFileItemReader.java

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