Camel: How to skip multiple header lines in CSV files

问题

I'm going to process CSV files using Apache Camel. My files have multiple header lines. In Camel I only find skipFirstLine or skipHeaderRecord (which is not clear for me) but how to skip more than one line?

回答1:

If the number of lines to skip is fixed, then you can use the simple language to skip X number. You likely need to covert the message to a String first,

  .convertBodyTo(String.class)
  .transform(simple("${skip(3)}")

See more about skip method at: http://camel.apache.org/simple

This requires Camel 2.19 onwards.

Using older releases you would need to build some custom code yourself to skip the lines.

回答2:

You can use tokenize method on your body before processing the body.

tokenize(String token, int group, boolean skipFirst)

Example:

`from("filePath").
    split(body().tokenize("\n",1,true)).
    streaming().
    process(exchange -> {....}).
to("filePath");`

来源：https://stackoverflow.com/questions/43520162/camel-how-to-skip-multiple-header-lines-in-csv-files